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- Author:
- Li, Yaning; Chen, Chun; Wen, Kejun; Li, Guodong; Cao, Peilin; Zhang, Yanjie; Tackett, Trevor M.
- Source:
- Ecological engineering 2015 v.84 pp. 660-667
- ISSN:
- 0925-8574
- Subject:
- Ailanthus altissima; Ulmus pumila; biomass; branches; chlorophyll; growth and development; irrigation scheduling; leaf protein; leaves; mineral content; nutrients; phytoremediation; potassium; protein content; reverse osmosis; roots; saline soils; sodium; tap water; toxicity; trees
- Abstract:
- ... We used two common species of tree, Ailanthus altissima S. and Ulmus pumila L., as the model plants to study the behavior of abandoned reverse osmosis (RO) membrane on the phytoremediation of saline soil following a pot experiment of up to 3 years. Plants (control) or plants with the roots wrapped by abandoned RO were cultivated in pots filled with saline soil, and irrigated twice a week with tap ...
- DOI:
- 10.1016/j.ecoleng.2015.09.039
-
https://dx.doi.org/10.1016/j.ecoleng.2015.09.039
- Author:
- Riggio, Vincenzo A.; Comino, Elena; Rosso, Maurizio
- Source:
- Ecological engineering 2015 v.79 pp. 35-41
- ISSN:
- 0925-8574
- Subject:
- Phragmites australis; aboveground biomass; aerial parts; anaerobic digestion; biogas; cattle manure; cheese whey; chemical oxygen demand; farms; methane; methane production; monitoring; phytoremediation
- Abstract:
- ... This paper shows that common reeds used in phytoremediation plants can be successfully disposed of in anaerobic digestion reactors. At mesophilic condition the following were investigated: biogas yield resulting from an anaerobic co-digestion campaign of mixtures of cattle slurry, cheese whey and aboveground biomass of Phragmites australis, rates of production of methane, removal efficiencies of c ...
- DOI:
- 10.1016/j.ecoleng.2015.01.015
-
https://dx.doi.org/10.1016/j.ecoleng.2015.01.015
- Author:
- Zhang, Qiong; Wang, Shuying; Wang, Wei; Bao, Peng; Li, Baikun; Peng, Yongzhen
- Source:
- Ecological engineering 2015 v.83 pp. 291-295
- ISSN:
- 0925-8574
- Subject:
- Chironomidae; carbon; fauna; larvae; nitrification; nitrifying bacteria; nitrogen; oxygen; predation; sludge; wastewater treatment
- Abstract:
- ... Although worm predation is effective for excess sludge reduction, it usually needs large land facility and high operational cost. In this study, Chironomid larvae (CL), a novel microfauna for sludge treatment was applied to a one-stage sludge reduction system (sequencing batch reactor, SBR). The results showed that adding CL induced the sludge reduction, and the sludge production rate was 31% lowe ...
- DOI:
- 10.1016/j.ecoleng.2015.06.016
-
https://dx.doi.org/10.1016/j.ecoleng.2015.06.016
- Author:
- Iakovleva, Evgenia; Mäkilä, Ermei; Salonen, Jarno; Sitarz, Maciej; Wang, Shaobin; Sillanpää, Mika
- Source:
- Ecological engineering 2015 v.81 pp. 30-40
- ISSN:
- 0925-8574
- Subject:
- acid mine drainage; adsorbents; adsorption; copper; correlation; energy-dispersive X-ray analysis; ions; iron; limestone; models; neutralization; nickel; nitrogen; pH; sand; scanning electron microscopy; sodium chloride; sorption isotherms; spectroscopy; surface area; toxic substances; wastewater treatment; zinc
- Abstract:
- ... Limestones and their modifications from Nordkalk Corporation (Finland) flotation fines (FF) and filter sand (FS) as potential adsorbents for AMD treatment and wastewater purification from Cu, Fe, Zn and Ni ions were studied. Limestones were capable of binding significant amounts of Cu and Fe from synthetic AMD solutions and wastewater, while unmodified limestones were not good for Zn and Ni remova ...
- DOI:
- 10.1016/j.ecoleng.2015.04.046
-
https://dx.doi.org/10.1016/j.ecoleng.2015.04.046
- Author:
- Sehar, Shama; Sumera,; Naeem, Sana; Perveen, Irum; Ali, Naeem; Ahmed, Safia
- Source:
- Ecological engineering 2015 v.81 pp. 62-69
- ISSN:
- 0925-8574
- Subject:
- Brachiaria; Trianthema portulacastrum; constructed wetlands; ingredients; macrophytes; nitrates; nitrites; pathogens; phosphates; planting; plate count; sewage treatment; subsurface flow; sulfates; total dissolved solids; total suspended solids; vegetation types; wastewater treatment
- Abstract:
- ... Constructed wetlands (CWs) are engineered systems that attained much attention as a feasible wastewater treatment technology particularly for small communities. It has been widely considered that the type of vegetation and hydraulic retention time (HRT) are two key intervening ingredients which directly influence the performance of CW. This study aims to compare the efficiency of a laboratory scal ...
- DOI:
- 10.1016/j.ecoleng.2015.04.009
-
https://dx.doi.org/10.1016/j.ecoleng.2015.04.009
- Author:
- Teixeira, Ricardo F.M.; Proença, Vânia; Crespo, David; Valada, Tatiana; Domingos, Tiago
- Source:
- Ecological engineering 2015 v.77 pp. 85-97
- ISSN:
- 0925-8574
- Subject:
- Rhizobium; basins; biodiversity; carbon; carbon sinks; climate change; climatic zones; cultivars; ecosystems; emissions; fertilizer analysis; fertilizer application; grasses; legumes; livestock production; nitrogen; nitrogen cycle; nonrenewable resources; pastures; permanent grasslands; phosphorus; phosphorus fertilizers; runoff; shrubs; soil organic matter; soil structure; sowing; stocking rate; surface water; Portugal
- Abstract:
- ... Sown biodiverse permanent pastures rich in legumes (SBPPRL) were developed in Portugal in the 1960s and 1970s as a strategy to increase grassland productivity by sowing mixtures of up to 20 species/cultivars of legumes and grasses. Compared to semi-natural pastures, the resulting engineered system provides higher yields of better quality pasture, significantly increasing sustainable stocking rates ...
- DOI:
- 10.1016/j.ecoleng.2015.01.002
-
https://dx.doi.org/10.1016/j.ecoleng.2015.01.002
- Author:
- Semeraro, Teodoro; Giannuzzi, Cosimo; Beccarisi, Leonardo; Aretano, Roberta; De Marco, Antonella; Pasimeni, M. Rita; Zurlini, Giovanni; Petrosillo, Irene
- Source:
- Ecological engineering 2015 v.82 pp. 517-526
- ISSN:
- 0925-8574
- Subject:
- biodiversity; case studies; ecosystem services; fauna; landscaping; monitoring; vegetation; wastewater treatment; water management; water purification; water resources; wetlands; wildlife habitats; Italy
- Abstract:
- ... Today we have to face new challenges about decreasing water resources, wastewater treatment, limited spaces and ecological preservation. This problem must be solved in a sustainable way using innovative water management strategies that combine technology with landscape design by enhancing ecosystem services provision. An effective way of tackling this problem is to use Constructed Treatment Wetlan ...
- DOI:
- 10.1016/j.ecoleng.2015.05.042
-
https://dx.doi.org/10.1016/j.ecoleng.2015.05.042
- Author:
- Petersen, John E.; Brandt, Erika C.; Grossman, Jake J.; Allen, George A.; Benzing, David H.
- Source:
- Ecological engineering 2015 v.82 pp. 531-541
- ISSN:
- 0925-8574
- Subject:
- agricultural runoff; ecological function; ecosystems; fertilizers; freshwater; invasive species; metabolism; nutrient content; nutrient uptake; planting; pollution load; primary productivity; seeds; soil organic matter; species diversity; vegetation cover; wetlands
- Abstract:
- ... Two fundamental questions for wetland restoration science are: how do early management practices affect long term plant species diversity, and how does diversity affect ecological function? Here, we report on a nine year study conducted in six replicate experimental wetland ecosystems designed to shed light on the impact of different planting treatments and nutrient enrichment on plant species div ...
- DOI:
- 10.1016/j.ecoleng.2015.05.002
-
https://dx.doi.org/10.1016/j.ecoleng.2015.05.002
- Author:
- Padedda, Bachisio Mario; Sechi, Nicola; Lai, Giuseppina Grazia; Mariani, Maria Antonietta; Pulina, Silvia; Satta, Cecilia Teodora; Bazzoni, Anna Maria; Virdis, Tomasa; Buscarinu, Paola; Lugliè, Antonella
- Source:
- Ecological engineering 2015 v.85 pp. 47-55
- ISSN:
- 0925-8574
- Subject:
- anthropogenic activities; ecosystems; eutrophication; lakes; models; monitoring; nitrogen content; nutrient excess; phosphorus; pollution load; prediction; surface water; trophic levels; water quality; watersheds
- Abstract:
- ... With many lakes and other inland water bodies worldwide being increasingly affected by eutrophication resulting from excess nutrient input, there is an urgent need for improved monitoring and prediction methods of nutrient load effects in such ecosystems. In this study, we adopted a catchment-based approach to identify and estimate the direct effect of external nutrient loads originating in the dr ...
- DOI:
- 10.1016/j.ecoleng.2015.09.062
-
https://dx.doi.org/10.1016/j.ecoleng.2015.09.062
- Author:
- Tavankar, Farzam; Bonyad, Amir Eslam; Majnounian, Baris
- Source:
- Ecological engineering 2015 v.83 pp. 505-512
- ISSN:
- 0925-8574
- Subject:
- cutting; data collection; felling; forest management; forests; regression analysis; silvicultural practices; stand density; tree damage; tree trunk; trees; Iran
- Abstract:
- ... Although selection cutting has many advantages, its potential for damage to residual trees is a major challenge of forest management. The present study evaluated damage to residual trees during manual felling and cable-skidder logging operations in 18 instances of selection cutting in the Caspian forests of Iran. Data was collected from 100m×100m systematic sample plots (0.1ha) at each logging sit ...
- DOI:
- 10.1016/j.ecoleng.2015.07.018
-
https://dx.doi.org/10.1016/j.ecoleng.2015.07.018
- Author:
- Assemany, Paula Peixoto; Calijuri, Maria Lúcia; Couto, Eduardo de Aguiar do; de Souza, Mauro Henrique Batalha; Silva, Nirlane Cristiane; Santiago, Aníbal da Fonseca; Castro, Jackeline de Siqueira
- Source:
- Ecological engineering 2015 v.77 pp. 154-162
- ISSN:
- 0925-8574
- Subject:
- Chlorella; Chlorophyceae; algae; autumn; bacteria; biomass; carbon; chlorophyll; culture media; dissolved oxygen; growth and development; nitrogen; nutrients; organic matter; phosphorus; photoinhibition; phytoplankton; ponds; predation; regression analysis; sewage; shade; solar radiation; spring; summer; wastewater treatment; winter; zooplankton
- Abstract:
- ... Using multivariate statistical tools, the composition of the phytoplankton community was related to the characteristics of the domestic sewage used as culture medium in three high rate ponds (HRPs) submitted to different solar radiation levels. A total of 32 genera of phytoplankton were identified in the ponds; the class Chlorophyceae was the most abundant during the entire sampling period, with a ...
- DOI:
- 10.1016/j.ecoleng.2015.01.026
-
https://dx.doi.org/10.1016/j.ecoleng.2015.01.026
- Author:
- Sindelar, Hugo R.; Yap, Jake N.; Boyer, Treavor H.; Brown, Mark T.
- Source:
- Ecological engineering 2015 v.85 pp. 144-158
- ISSN:
- 0925-8574
- Subject:
- agricultural runoff; algae; animals; biological treatment; biomass production; calcium; coprecipitation; minerals; pH; phosphorus; photosynthesis; scrubbers; wastewater
- Abstract:
- ... Algae scrubbers are a developing technology used for nutrient removal from many different impaired waters, including: agricultural runoff, wastewater, and animal operation waste. Algae thrive in environments with high flow velocities, allowing treatment of large volumes of nutrient-rich water. This adaptation helps overcome space issues associated with other biological treatment systems. Although ...
- DOI:
- 10.1016/j.ecoleng.2015.09.002
-
https://dx.doi.org/10.1016/j.ecoleng.2015.09.002
- Author:
- Shriwastav, Amritanshu; Bose, Purnendu
- Source:
- Ecological engineering 2015 v.77 pp. 202-215
- ISSN:
- 0925-8574
- Subject:
- algae; chlorophyll; light intensity; lighting; nutrient availability; nutrient uptake; photophase
- Abstract:
- ... The objectives of this study were to first identify illumination strategies which support long term sustainable algal growth in photo-bioreactors, and second to address contradictions in literature regarding the algal nutrient uptake behavior under a sustainable growth regime. Experiments were conducted at different light intensities with continuous illumination and intermittent illumination of 12 ...
- DOI:
- 10.1016/j.ecoleng.2015.01.034
-
https://dx.doi.org/10.1016/j.ecoleng.2015.01.034
- Author:
- D’Aiuto, P.E.; Patt, J.M.; Albano, J.P.; Shatters, R.G.; Evens, T.J.
- Source:
- Ecological engineering 2015 v.75 pp. 404-412
- ISSN:
- 0925-8574
- Subject:
- Bacillariophyceae; Chlorophyta; Citrus; agricultural runoff; algae; ammonium compounds; drainage channels; farms; harvesting; nitrate nitrogen; nitrite nitrogen; orchards; periphyton; phosphates; phosphorus; pollution control; pollution load; silicon; summer; tree fruits; Florida
- Abstract:
- ... There is a strong need to develop strategies that reduce nutrient loading to Florida’s waters. The purpose of this study was to investigate the nutrient-removing ability and growth rate of periphyton, grown on an Algal Turf Scrubber (ATS™) that received runoff from a citrus orchard operated by the USDA in southern Florida. A pilot scale ATS (1.2m wide×234m long; 0.5% declining grade) was construct ...
- DOI:
- 10.1016/j.ecoleng.2014.11.054
-
https://dx.doi.org/10.1016/j.ecoleng.2014.11.054
- Author:
- Calvo-Fernández, J.; Marcos, E.; Calvo, L.; Härdtle, W.
- Source:
- Ecological engineering 2015 v.84 pp. 128-135
- ISSN:
- 0925-8574
- Subject:
- Calluna vulgaris; ecosystems; heathlands; leaching; microbial biomass; mountains; nitrogen; shoots; soil horizons; soil microorganisms; Spain
- Abstract:
- ... The fate of atmospheric N depositions in heathlands dominated by Calluna vulgaris (L.) Hull in the Cantabrian Mountains (NW Spain) was analyzed in this study. The aim was to identify and quantify allocation patterns of airborne nitrogen in mountain heathland ecosystems by 15N tracer experiment. Four replicated plots were established to analyze 15N partitioning among different compartments selected ...
- DOI:
- 10.1016/j.ecoleng.2015.07.027
-
https://dx.doi.org/10.1016/j.ecoleng.2015.07.027
- Author:
- Kasak, Kuno; Mander, Ülo; Truu, Jaak; Truu, Marika; Järveoja, Järvi; Maddison, Martin; Teemusk, Alar
- Source:
- Ecological engineering 2015 v.77 pp. 242-249
- ISSN:
- 0925-8574
- Subject:
- ammonia; calcium; carbon dioxide; filters; greenhouse gas emissions; methane; municipal wastewater; nitrous oxide; oil shale; pH; peat; phosphorus; snowmelt; subsurface flow; wastewater treatment
- Abstract:
- ... In previous studies, hydrated oil shale ash has demonstrated outstanding phosphorus removal. However, long-term efficiency in field conditions and the impact on greenhouse gas emissions was unknown. From November 2011 to October 2012 we measured purification of pretreated municipal wastewater and greenhouse gas fluxes in an experimental 5-cell horizontal subsurface flow filter filled with oil shal ...
- DOI:
- 10.1016/j.ecoleng.2015.01.038
-
https://dx.doi.org/10.1016/j.ecoleng.2015.01.038
- Author:
- Li-ping, Liu; Xiao-hua, Long; Hong-bo, Shao; Zhao-Pu, Liu; Ya, Tao; Quan-suo, Zhou; Jun-qin, Zong
- Source:
- Ecological engineering 2015 v.81 pp. 328-334
- ISSN:
- 0925-8574
- Subject:
- Salicornia; calcium; cattle manure; electrical conductivity; field experimentation; gypsum; pH; potassium; roots; saline soils; soil amendments; soil nutrients; soil organic matter; stems; China
- Abstract:
- ... In order to improve the coastal saline–alkali soil in north Jiangsu Province, the effects of a newly-developed ameliorant was compared with gypsum and cow manure in field trials in coastal saline soil in Dafeng County, China. Measurements included soil electrical conductivity, pH, soil nutrients, the plant (Salicornia europea L.) growth and ion concentration in stems and roots. The three amelioran ...
- DOI:
- 10.1016/j.ecoleng.2015.04.032
-
https://dx.doi.org/10.1016/j.ecoleng.2015.04.032
- Author:
- Polizzotto, Matthew L.; Birgand, François; Badruzzaman, A. Borhan M.; Ali, M. Ashraf
- Source:
- Ecological engineering 2015 v.74 pp. 101-106
- ISSN:
- 0925-8574
- Subject:
- arsenic; grain yield; humans; hydrogeochemistry; iron; irrigation canals; irrigation water; paddies; phosphorus; rice; water treatment; Bangladesh
- Abstract:
- ... Extensive use of arsenic-contaminated well water for irrigation of rice fields in Bangladesh has led to elevated arsenic concentrations in rice plants, decreased rice yields, and increased human exposure to arsenic. The goal of this study was to investigate whether arsenic removal from irrigation water could be improved within distribution channels by amending them with physical structures that bo ...
- DOI:
- 10.1016/j.ecoleng.2014.10.030
-
https://dx.doi.org/10.1016/j.ecoleng.2014.10.030
- Author:
- Milbrandt, E.C.; Thompson, M.; Coen, L.D.; Grizzle, R.E.; Ward, K.
- Source:
- Ecological engineering 2015 v.83 pp. 394-404
- ISSN:
- 0925-8574
- Subject:
- Crassostrea virginica; Rhizophora mangle; biodiversity; crabs; die-off; ecological succession; ecosystem services; filtration; fossils; habitat conservation; habitat destruction; habitats; landscapes; larvae; littoral zone; monitoring; oysters; planting; population growth; reefs; salinity; sediments; shorelines; submerged aquatic plants; Florida
- Abstract:
- ... Habitat loss and disturbance are ranked globally as the greatest threats to biodiversity. Development and coastal population growth are the leading causes for habitat losses. Recently, the restoration of marine habitats has increased, especially with the goal of increasing non-consumptive ecosystem services derived from mangrove and submerged aquatic vegetation (SAV) along with biogenic oyster ree ...
- DOI:
- 10.1016/j.ecoleng.2015.06.043
-
https://dx.doi.org/10.1016/j.ecoleng.2015.06.043
- Author:
- Li, Baohua; Pan, Xiangliang; Zhang, Daoyong; Lee, Duu-Jong; Al-Misned, Fahad A.; Mortuza, M. Golam
- Source:
- Ecological engineering 2015 v.77 pp. 196-201
- ISSN:
- 0925-8574
- Subject:
- Citrobacter freundii; Fourier transform infrared spectroscopy; X-ray diffraction; adsorption; arsenic; arsenites; bacteria; coprecipitation; ferric oxide; groundwater; groundwater contamination; iron; nitrate reduction; nitrates; oxidation; oxides; pollutants; remediation; scanning electron microscopy
- Abstract:
- ... Nitrate and arsenic are common pollutants in groundwater. However, we are still lacking technologies that can remove nitrate and arsenic simultaneously using a single species of microorganism. In the present study, the potential of synchronous removal of nitrate and arsenite from water by a single anaerobic nitrate-reducing Fe(II) oxidizing Citrobacter freundii strain PXL1 was assessed. The strain ...
- DOI:
- 10.1016/j.ecoleng.2015.01.027
-
https://dx.doi.org/10.1016/j.ecoleng.2015.01.027
- Author:
- Sharma, Meena Kumari; Kazmi, Absar Ahmad
- Source:
- Ecological engineering 2015 v.75 pp. 457-461
- ISSN:
- 0925-8574
- Subject:
- biochemical oxygen demand; coliform bacteria; developing countries; heat tolerance; rural areas; septic systems
- Abstract:
- ... The present study investigates the efficiency and feasibility of an anaerobic packaged system for onsite treatment of source-separated black water from a residential school. The system consisted of a modified septic tank followed by an upflow anaerobic filter, both accommodated within a single unit. The present system achieved comparatively much higher removal efficiency than the existing conventi ...
- DOI:
- 10.1016/j.ecoleng.2014.12.014
-
https://dx.doi.org/10.1016/j.ecoleng.2014.12.014
- Author:
- Wang, Xuan; Cui, Guannan; Wu, Feifei; Li, Chunhui
- Source:
- Ecological engineering 2015 v.76 pp. 47-56
- ISSN:
- 0925-8574
- Subject:
- atmospheric precipitation; autumn; climate change; decision making; disasters; drought; food security; rivers; summer; supply balance; water management; water supply; watersheds; China
- Abstract:
- ... In recent years, droughts and upstream/downstream water conflicts (such as those between water supply and demand) have been occurring frequently in the Lancang River basin, threatening local food security. In this research, the empirical orthogonal function (EOF) analysis and the rotated empirical orthogonal function (REOF) analysis were employed to investigate the temporal and spatial characteris ...
- DOI:
- 10.1016/j.ecoleng.2014.02.003
-
https://dx.doi.org/10.1016/j.ecoleng.2014.02.003
- Author:
- Li, X.J.; Zhang, J.; Xu, L.Y.
- Source:
- Ecological engineering 2015 v.76 pp. 178-185
- ISSN:
- 0925-8574
- Subject:
- case studies; ecological value; ecosystems; electricity; energy; pollution; prediction; rivers; water power; watersheds; China
- Abstract:
- ... As an important and typical human activity, hydropower development provides a source of energy as well as socioeconomic benefits; however, it inevitably damages or even destroys the ecosystem at different spatial scales – the plant scale, the river scale, and the watershed scale. In this paper, a multi-scale evaluation method is proposed for placing a monetary value on ecological losses at these t ...
- DOI:
- 10.1016/j.ecoleng.2014.03.034
-
https://dx.doi.org/10.1016/j.ecoleng.2014.03.034
- Author:
- Jin, Kang-Ren; Ji, Zhen-Gang
- Source:
- Ecological engineering 2015 v.84 pp. 416-426
- ISSN:
- 0925-8574
- Subject:
- constructed wetlands; flow resistance; hydrodynamics; lakes; models; phosphorus; stormwater; stormwater management; submerged aquatic plants; total suspended solids; water temperature; Florida
- Abstract:
- ... Constructed wetlands (CW) have become a popular technology for treating urban and agricultural stormwater runoff. In South Florida, Stormwater Treatment Areas (STAs) have been built to reduce phosphorus (P) concentrations in runoff from agriculture and other sources, including Lake Okeechobee discharges, prior to delivery to the Everglades Protection Area. The scale of this constructed wetland pro ...
- DOI:
- 10.1016/j.ecoleng.2015.09.022
-
https://dx.doi.org/10.1016/j.ecoleng.2015.09.022
- Author:
- Li, Yinsheng; Zhang, Feifei; Ai, Xiaojie; Wang, Xiuhong; Robin, Paul; Cavanagh, Jo; Matthew, Cory; Qiu, Jiangping
- Source:
- Ecological engineering 2015 v.81 pp. 218-227
- ISSN:
- 0925-8574
- Subject:
- ammonium nitrogen; antioxidants; burrows; chemical oxygen demand; earthworms; malondialdehyde; nitrogen; reactive oxygen species; vermifiltration; wastewater
- Abstract:
- ... Vermifiltration is a new technology for treating wastewater with a high organic loading, but there is almost no published information on the biochemical and behavioral response of earthworms in a vermifilter environment. This study measured antioxidase enzyme (AOE) activities and reactive oxygen species (ROS) and malondialdehyde (MDA) levels in tissues of earthworms for a period of 56 d after tran ...
- DOI:
- 10.1016/j.ecoleng.2015.04.045
-
https://dx.doi.org/10.1016/j.ecoleng.2015.04.045
- Author:
- Johnson, Zachary C.; Warwick, John J.; Schumer, Rina
- Source:
- Ecological engineering 2015 v.83 pp. 96-107
- ISSN:
- 0925-8574
- Subject:
- ammonium nitrogen; denitrification; enzyme kinetics; nitrate nitrogen; nitrogen; nutrients; rivers; streams; wastewater treatment; water quality; Nevada
- Abstract:
- ... Wastewater treatment plants are common point sources of nutrients to streams. Excess loading of nutrients, particularly nitrogen (N), can result in significant water quality degradation. Where stream loading cannot be increased by water quality trading with other point or nonpoint sources, stream restoration may be an alternative means for point sources to increase loading while maintaining or imp ...
- DOI:
- 10.1016/j.ecoleng.2015.05.024
-
https://dx.doi.org/10.1016/j.ecoleng.2015.05.024
- Author:
- Liang, Zhijie; Liu, Yan; Ge, Fei; Liu, Na; Wong, Minghung
- Source:
- Ecological engineering 2015 v.75 pp. 258-263
- ISSN:
- 0925-8574
- Subject:
- Bacillus licheniformis; Chlorella vulgaris; algae; ammonium nitrogen; bacteria; coculture; pH; phosphorus; scanning electron microscopy; wastewater
- Abstract:
- ... A pH-dependent enhancement effect of a co-cultured bacterium Bacillus licheniformis on nutrient removal by a green alga Chlorella vulgaris was evaluated in a 6-day experiment. In the single algal system, steady removal efficiencies of ammonia nitrogen (NH4-N) and total phosphorus (TP) were achieved at 63 and 91% with 10×105algal cellsmL−1, meanwhile the optimal removal rates of NH4-N and TP were a ...
- DOI:
- 10.1016/j.ecoleng.2014.11.040
-
https://dx.doi.org/10.1016/j.ecoleng.2014.11.040
- Author:
- Nishijima, Wataru; Tsukasaki, Ayumi; Tanimoto, Terumi; Nagao, Masayuki; Tsurushima, Nobuo; Suzumura, Masahiro
- Source:
- Ecological engineering 2015 v.81 pp. 418-427
- ISSN:
- 0925-8574
- Subject:
- Zostera marina; ammonium nitrogen; byproducts; community structure; construction materials; dredged materials; pH; sand; silica; slags; steel; Japan
- Abstract:
- ... We evaluated mixed materials made from dephosphorization slag, a byproduct of the steelmaking process, as a basal material and dredged material (DM) as a silt-clay source in constructing beds to grow eelgrass (Zostera marina L.). Silica sand was used as a reference basal material. The slag increased in pH to about 9.0 in interstitial water, but adding DM to slag mitigated the increase. The additio ...
- DOI:
- 10.1016/j.ecoleng.2015.04.061
-
https://dx.doi.org/10.1016/j.ecoleng.2015.04.061
- Author:
- Yang, Linyan; Giannis, Apostolos; Chang, Victor W.-C.; Liu, Bianxia; Zhang, Jiefeng; Wang, Jing-Yuan
- Source:
- Ecological engineering 2015 v.81 pp. 182-191
- ISSN:
- 0925-8574
- Subject:
- Ipomoea aquatica; ammonia; ammonium nitrogen; chemical oxygen demand; humans; hydrolysis; hydroponics; leaves; microorganisms; models; nitrification; nitrogen; oxygen; potassium; streams; total suspended solids; urea; urine; wastewater; water content; Singapore
- Abstract:
- ... Hydroponic systems are widely used for the treatment of nutrient rich wastewaters. In this study, a hydroponic system was applied as the final treatment stage of source-separated human urine after urea hydrolysis, induced-struvite precipitation and ammonia stripping in tropical conditions (Singapore). The results showed that water spinach grew efficiently in the pretreated urine with 1:50 dilution ...
- DOI:
- 10.1016/j.ecoleng.2015.04.013
-
https://dx.doi.org/10.1016/j.ecoleng.2015.04.013
- Author:
- Ofomaja, A.E.; Pholosi, A.; Naidoo, E.B.
- Source:
- Ecological engineering 2015 v.82 pp. 258-266
- ISSN:
- 0925-8574
- Subject:
- adsorbents; adsorption; aqueous solutions; biomass; biosorbents; bulk density; cesium; desorption; ecosystems; ion exchange; ions; kinetics; models; nuclear power; plant extracts; radionuclides; surface area
- Abstract:
- ... The growing investment in nuclear power has led to increasing concentrations of radionuclides in the ecosystem near nuclear facilities, therefore cheap and efficient filter materials for removal of these radionuclides needs to be designed to handle effluent waters from these facilities. The study investigates the use of hexacyanoferrate complex immobilized on chemically treated pine cone (TPC) bio ...
- DOI:
- 10.1016/j.ecoleng.2015.04.041
-
https://dx.doi.org/10.1016/j.ecoleng.2015.04.041
- Author:
- Liang, Jie; Hua, Shanshan; Zeng, Guangming; Yuan, Yujie; Lai, Xu; Li, Xiaodong; Li, Fei; Wu, Haipeng; Huang, Lu; Yu, Xun
- Source:
- Ecological engineering 2015 v.77 pp. 119-126
- ISSN:
- 0925-8574
- Subject:
- Anatidae; case studies; correspondence analysis; environmental factors; habitat conservation; habitats; lakes; surveys; waterfowl; China
- Abstract:
- ... Habitat suitability assessment is one of the essential steps in habitat conservation and restoration. A weight method, which used the length of arrow in the result of canonical correspondence analysis (CCA) to determine the weight of the environmental variables, was developed to evaluate the Anatidae habitat suitability in East Dongting Lake. Based on descriptive waterfowl statistics from field ob ...
- DOI:
- 10.1016/j.ecoleng.2015.01.016
-
https://dx.doi.org/10.1016/j.ecoleng.2015.01.016
- Author:
- You, L.; Li, Y.P.; Huang, G.H.
- Source:
- Ecological engineering 2015 v.81 pp. 488-503
- ISSN:
- 0925-8574
- Subject:
- animals; biogeochemical cycles; case studies; ecosystem management; ecosystem services; ecosystems; land restoration; land use; planning; probability distribution; socioeconomic development; uncertainty; China
- Abstract:
- ... A relative interval-regret analysis (RIRA) method is developed for regional ecosystem management under uncertainty through incorporating interval-parameter programming (IPP) and minimax relative regret (MRR) analysis techniques within a general framework. RIRA can handle uncertainties expressed as intervals and random variables without knowing probability distributions and only needs a list of pos ...
- DOI:
- 10.1016/j.ecoleng.2015.04.017
-
https://dx.doi.org/10.1016/j.ecoleng.2015.04.017
- Author:
- Oñatibia, Gastón R.; Aguiar, Martín R.; Semmartin, María
- Source:
- Ecological engineering 2015 v.77 pp. 26-32
- ISSN:
- 0925-8574
- Subject:
- aboveground biomass; biosphere; correlation; ecosystem services; forage grasses; grazing intensity; grazing management; land use change; livestock production; primary productivity; rangelands; roots; sheep; shrubs; soil; steppes
- Abstract:
- ... Changes in land use often increase the provisioning ecosystem services at the cost of decreasing the regulating services. Thus, the appropriation of primary production to optimize the supply of forage for livestock production may undermine C and N storage, essential to maintain the integrity of ecological systems and the biosphere. The aim of this work was to study this trade-off by estimating the ...
- DOI:
- 10.1016/j.ecoleng.2015.01.009
-
https://dx.doi.org/10.1016/j.ecoleng.2015.01.009
- Author:
- Dong, C.; Huang, G.H.; Tan, Qian
- Source:
- Ecological engineering 2015 v.76 pp. 95-109
- ISSN:
- 0925-8574
- Subject:
- agricultural land; ecosystems; models; planning; pollution; pollution control; probability distribution; profits and margins; uncertainty; water supply
- Abstract:
- ... In this study, a dual inexact fuzzy radial chance-constrained programming (DIFRCCP) method was developed for planning water and farmland use management system with the consideration of the conflicts between anthropogenic modification and ecosystems protection. This method can effectively reflect and tackle the multiple uncertainties existing in water and farmland use activities and eco-environment ...
- DOI:
- 10.1016/j.ecoleng.2014.04.003
-
https://dx.doi.org/10.1016/j.ecoleng.2014.04.003
- Author:
- Coleman, André M.; Diefenderfer, Heida L.; Ward, Duane L.; Borde, Amy B.
- Source:
- Ecological engineering 2015 v.82 pp. 624-642
- ISSN:
- 0925-8574
- Subject:
- algorithms; biomass; cost effectiveness; estuaries; floodplains; geographic information systems; habitats; hydrology; lowland forests; microrelief; models; monitoring; planning; prioritization; rapid methods; salmon; salt marshes; Columbia River
- Abstract:
- ... A geographic information system (GIS)-based Area-Time Inundation Index Model (ATIIM) was developed to predict and evaluate availability of hydrologically connected habitats in estuarine and tidal–fluvial regions. The model establishes and describes patterns in the spatial and temporal relationships of the land and water including non-dimensional area–time and volume–time inundation indices. The pr ...
- DOI:
- 10.1016/j.ecoleng.2015.05.006
-
https://dx.doi.org/10.1016/j.ecoleng.2015.05.006
- Author:
- dela Cruz, Dexter W.; Rinkevich, Baruch; Gomez, Edgardo D.; Yap, Helen T.
- Source:
- Ecological engineering 2015 v.84 pp. 408-415
- ISSN:
- 0925-8574
- Subject:
- Scleractinia; coral reefs; corals; ecosystem engineering; field experimentation; rearing; survival rate; Philippines
- Abstract:
- ... The continued decline of coral reefs worldwide due to natural and anthropogenic drivers necessitates the development of effective restoration schemes. Two of the approaches frequently used nowadays are (1) the direct transplantation of coral fragments/colonies to degraded reefs; and (2) the “coral gardening” approach, which supports coral transplantation only following an intermediate nursery phas ...
- DOI:
- 10.1016/j.ecoleng.2015.09.042
-
https://dx.doi.org/10.1016/j.ecoleng.2015.09.042
- Author:
- Labella, Alessandro; Caniani, Donatella; Hughes-Riley, Theodore; Morris, Robert H.; Newton, Michael I.; Hawes, Patrick; Puigagut, Jaume; García, Joan; Uggetti, Enrica
- Source:
- Ecological engineering 2015 v.83 pp. 184-190
- ISSN:
- 0925-8574
- Subject:
- aeration; ammonium nitrogen; chemical oxygen demand; constructed wetlands; dissolved oxygen; energy use and consumption; heat; organic matter; surface area; wastewater; wastewater treatment
- Abstract:
- ... Constructed wetlands including aeration and heating were studied to improve treatment efficiency and prevent clogging. The experiments were carried out in a pilot plant (0.4m2) treating urban wastewater with an organic loading rate of 40–60g COD/m2d. Continuous and intermittent aeration was performed from the bottom on 8% of the wetland surface, leading to different dissolved oxygen concentrations ...
- DOI:
- 10.1016/j.ecoleng.2015.06.028
-
https://dx.doi.org/10.1016/j.ecoleng.2015.06.028
- Author:
- Assayed, Almoayied; Chenoweth, Jonathan; Pedley, Steven
- Source:
- Ecological engineering 2015 v.81 pp. 525-533
- ISSN:
- 0925-8574
- Subject:
- biochemical oxygen demand; case studies; chemical oxygen demand; economic analysis; electrical conductivity; odors; sand; socioeconomics; wastewater; Jordan
- Abstract:
- ... This study evaluated the performance of a new treatment method for greywater called the Drawer Compacted Sand Filter (DCSF). This is a modified sand filter design in which the sand filter is broken down into several layers approximately 10cm high, each of which is placed in a movable drawer that is stacked vertically, with each drawer separated by 10cm of space. This treatment unit is seeking to o ...
- DOI:
- 10.1016/j.ecoleng.2015.04.042
-
https://dx.doi.org/10.1016/j.ecoleng.2015.04.042
- Author:
- Wang, Yuankun; Wang, Dong; Wu, Jichun
- Source:
- Ecological engineering 2015 v.81 pp. 41-52
- ISSN:
- 0925-8574
- Subject:
- carp; ecosystem management; ecosystems; environmental health; environmental impact; habitats; health promotion; hydrology; rivers; spawning; China
- Abstract:
- ... Natural flow variability is the primary driver of riverine ecosystem function and structure. Alterations in hydrologic regimes modify habitat attributes and impair ecosystem connectivity. The indicators of hydrologic alteration and range of variability approach methods are used to investigate the hydrologic alterations due to Danjiangkou reservoir in the middle stream of Hanjiang river, China, ove ...
- DOI:
- 10.1016/j.ecoleng.2015.04.006
-
https://dx.doi.org/10.1016/j.ecoleng.2015.04.006
- Author:
- Rossel, Valeria; de la Fuente, Alberto
- Source:
- Ecological engineering 2015 v.85 pp. 26-38
- ISSN:
- 0925-8574
- Subject:
- algae; chlorophyll; economic costs; eutrophication; hydrodynamics; hydrology; lakes; metals; models; nutrients; phytoplankton; recreation; sediments; time series analysis; water power; water quality; water reservoirs; Chile
- Abstract:
- ... Eutrophication is a common problem in lakes and reservoirs with high incoming loads of nutrients. The consequent algae bloom affects the water quality and causes incompatibility with tourist and recreational activities. This is the case of the Rapel reservoir, an old, dendritic and monomictic reservoir located in central Chile (34°S, 71.6°W, 105m.a.s.l.), which has received high loads of nutrients ...
- DOI:
- 10.1016/j.ecoleng.2015.09.074
-
https://dx.doi.org/10.1016/j.ecoleng.2015.09.074
- Author:
- Martinez-Martinez, Edwin; Nejadhashemi, A. Pouyan; Woznicki, Sean A.; Adhikari, Umesh; Giri, Subhasis
- Source:
- Ecological engineering 2015 v.77 pp. 103-113
- ISSN:
- 0925-8574
- Subject:
- Soil and Water Assessment Tool model; economic valuation; ecosystems; land use change; pollution load; rivers; sediment yield; sediments; stormwater management; stream flow; streams; watersheds; wetlands; Michigan; Ohio
- Abstract:
- ... Wetlands have many environmental, social, and economic values. However, due to accelerated land use change and lack of understanding of the functions of wetland ecosystems, they have deteriorated, if not been lost in many areas worldwide. Meanwhile, current functional wetland assessment techniques only provide rough estimations, and are in most cases site specific and qualitative. The overall goal ...
- DOI:
- 10.1016/j.ecoleng.2014.11.031
- CHORUS:
- 10.1016/j.ecoleng.2014.11.031
-
https://dx.doi.org/10.1016/j.ecoleng.2014.11.031
- Author:
- Ma, Fengjiao; Eneji, A.Egrinya; Liu, Jintong
- Source:
- Ecological engineering 2015 v.82 pp. 241-251
- ISSN:
- 0925-8574
- Subject:
- agroecosystems; case studies; economic investment; economic resources; ecosystem services; emergy; farming systems; mineral fertilizers; organic fertilizers; sustainable development; China
- Abstract:
- ... An agricultural ecosystem provides provisioning, regulating and supporting services for humans. At the same time, it consumes the resources of other ecosystems, including the investment of economic resources and can generate useless or harmful services, collectively called dis-services. Here, we built a framework for assessing agricultural ecosystem services and dis-services based on emergy analys ...
- DOI:
- 10.1016/j.ecoleng.2015.04.100
-
https://dx.doi.org/10.1016/j.ecoleng.2015.04.100
- Author:
- Alaribe, F.O.; Agamuthu, P.
- Source:
- Ecological engineering 2015 v.83 pp. 513-520
- ISSN:
- 0925-8574
- Subject:
- Gibbs free energy; Lantana camara; Mollisols; absorption; additives; bacteria; heavy metals; indicator species; industrialization; lead; organic wastes; phytoremediation; risk; soil pollution; sorption isotherms; spent mushroom compost
- Abstract:
- ... Anthropogenic metal activities have led to soil contamination, posing a severe risk to each trophic level. Therefore, ecosustainable remediation techniques and/or strategy which is the focus of this study must be continuously explored, since metal processing and accidental leakages and depositions into the environment are both inevitable in the global drive for industrialization. Different concent ...
- DOI:
- 10.1016/j.ecoleng.2015.07.001
-
https://dx.doi.org/10.1016/j.ecoleng.2015.07.001
- Author:
- Sui, Xin; Chen, Liang; Chen, Ang; Wang, Dongsheng; Wang, Wenlin; Ge, Huaifeng; Ji, Guodong
- Source:
- Ecological engineering 2015 v.84 pp. 520-531
- ISSN:
- 0925-8574
- Subject:
- birds; economic development; habitats; land use; landscapes; overwintering; paddies; remote sensing; wetlands; China; Yellow River
- Abstract:
- ... Riverine wetlands provide important habitats and travel corridors for resident and transient species, playing a key role in maintaining the diversity of entire landscapes. This paper assessed a long-term (1990–2013) landscape changes and avifauna community dynamics in the Yellow River wetland natural reserves, China. Remote sensing information was combined with field surveys to collect critical da ...
- DOI:
- 10.1016/j.ecoleng.2015.09.035
-
https://dx.doi.org/10.1016/j.ecoleng.2015.09.035
- Author:
- Vergeles, Yuriy; Vystavna, Yuliya; Ishchenko, Andrey; Rybalka, Inna; Marchand, Lilian; Stolberg, Felix
- Source:
- Ecological engineering 2015 v.83 pp. 159-168
- ISSN:
- 0925-8574
- Subject:
- Phragmites australis; Scirpus; Typha latifolia; chemical oxygen demand; constructed wetlands; macrophytes; municipal wastewater; nitrogen; orthophosphates; pollutants; rural areas; rural communities; sewage treatment; surfactants; wastewater treatment; Ukraine
- Abstract:
- ... The aim of the study was to evaluate the performance of 9 hybrid constructed wetlands (CWs) in the Kharkiv region, East Ukraine. Assessed CWs varied by surface areas (from 760 to 11,000m2) and treated domestic wastewater discharge (10m3day−1 to 700m3day−1). Principal macrophyte species used on these CWs were the Reed Phragmites australis (Cav.) Steud., the Wood Bulrush Scirpus sylvaticus L. and th ...
- DOI:
- 10.1016/j.ecoleng.2015.06.020
-
https://dx.doi.org/10.1016/j.ecoleng.2015.06.020
- Author:
- Pandey, Vimal Chandra
- Source:
- Ecological engineering 2015 v.82 pp. 1-5
- ISSN:
- 0925-8574
- Subject:
- fly ash; phytoremediation; plant establishment; vegetation
- Abstract:
- ... The present article briefly describes a strategy regarding the remediation and management of fly ash (FA) dumps to mitigate all environmental problems of FA hazards. The onsite remediation of FA dumps through phytoremediation is still a critical challenge due to unfavorable conditions of ash deposit which inhibit plant establishment and growth. However, some naturally growing plant species coloniz ...
- DOI:
- 10.1016/j.ecoleng.2015.04.002
-
https://dx.doi.org/10.1016/j.ecoleng.2015.04.002
- Author:
- Chang, Yuan-Hsiou; Wu, Bing-Yu; Lai, Chao-Feng
- Source:
- Ecological engineering 2015 v.75 pp. 128-136
- ISSN:
- 0925-8574
- Subject:
- Araneus; Ischnura; Polyrhachis; Tetragnatha; electricity; habitats; landscaping; pipes; renewable energy sources; shorelines; solar collectors; species diversity; surface water; tanks; water pollution; water quality; water resources
- Abstract:
- ... The overdevelopment of the environment in modern times has caused damage to our natural habitat and water resources. The survival of many species has been impacted. The main goal of this study is to explore the effects of green energy landscape fountain (GLF) on ecological preservation. The study site is located on the shore of an open water area within the campus of Mingdao University. The study ...
- DOI:
- 10.1016/j.ecoleng.2014.11.021
-
https://dx.doi.org/10.1016/j.ecoleng.2014.11.021
- Author:
- Baek, Kyong Oh; Ku, Young Hun; Kim, Young Do
- Source:
- Ecological engineering 2015 v.84 pp. 569-578
- ISSN:
- 0925-8574
- Subject:
- Zacco platypus; fish; gates; habitats; models; raceways; rivers; stream channels; weirs; Korean Peninsula
- Abstract:
- ... In this study, the attraction efficiency in the natural-like fishways which were installed at the Dalseong and the Gangjeong-Goryeong weirs located at the Nakdong River of Korea was assessed according to riverbed changes, with or without the attraction flow, and operation of movable weirs. A two-dimensional physical habitat model, especially River2D, was used as a tool of the evaluation for the fi ...
- DOI:
- 10.1016/j.ecoleng.2015.09.055
-
https://dx.doi.org/10.1016/j.ecoleng.2015.09.055
- Author:
- Foladori, P.; Bruni, L.; Tamburini, S.
- Source:
- Ecological engineering 2015 v.82 pp. 49-56
- ISSN:
- 0925-8574
- Subject:
- activated sludge; cell membranes; constructed wetlands; flow cytometry; functional status; microbial biomass; microbial growth; propidium; sand; sieving; sodium pyrophosphate; soil bacteria; soil water; specific energy; subsurface flow; ultrasonic treatment; viability; wastewater; water content
- Abstract:
- ... In this study the functional status of bacterial biomass within a vertical subsurface flow (VSSF) constructed wetland was examined with the aim to understand the relationship between viable and dead bacteria in soil and influent/effluent wastewater and elucidate the large amount of dead cells in the soil which may affect the long-term behavior of the system. The quantification of viable and dead b ...
- DOI:
- 10.1016/j.ecoleng.2015.04.058
-
https://dx.doi.org/10.1016/j.ecoleng.2015.04.058
- Author:
- Millon, Lara; Julien, Jean-François; Julliard, Romain; Kerbiriou, Christian
- Source:
- Ecological engineering 2015 v.75 pp. 250-257
- ISSN:
- 0925-8574
- Subject:
- Pipistrellus; crops; farming systems; grasses; landscapes; migratory behavior; wind farms; wind power; wind turbines
- Abstract:
- ... Compensation measures are needed to counteract some of the negative impacts of wind energy facilities on bat populations. To advise developers, we studied farming landscapes and compared bat activity at impacted sites (crops with wind turbines), sites without compensation measures (crops) and a set of sites with potential compensation measures: fallows, hedgerows, bushes, grass strips, and grass s ...
- DOI:
- 10.1016/j.ecoleng.2014.11.050
-
https://dx.doi.org/10.1016/j.ecoleng.2014.11.050
- Author:
- Goettel, Michael T.; Atkinson, Joseph F.; Bennett, Sean J.
- Source:
- Ecological engineering 2015 v.74 pp. 230-240
- ISSN:
- 0925-8574
- Subject:
- Rhinichthys atratulus; acoustics; data collection; energy; fish; image analysis; infrastructure; laboratory experimentation; lotic systems; shear stress; streams; swimming; turbulent flow
- Abstract:
- ... Laboratory experiments were conducted to assess the behavioral responses of western blacknose dace (Rhinichthysobtusus) along swimming pathlines in modified turbulent flow fields. Dace are a small lotic prey species inhabiting shallow clear streams that migrate into the headwater reaches. The goal of this study was to develop an understanding of how these fish behave in a turbulent flow field and ...
- DOI:
- 10.1016/j.ecoleng.2014.10.012
-
https://dx.doi.org/10.1016/j.ecoleng.2014.10.012
- Author:
- Sang, Guoliang; Pi, Yongrui; Bao, Mutai; Li, Yiming; Lu, Jinren
- Source:
- Ecological engineering 2015 v.84 pp. 121-127
- ISSN:
- 0925-8574
- Subject:
- Fourier transform infrared spectroscopy; acrylamides; aeration; animals; bacteria; biodegradation; cadmium; carbon; electrophoresis; gels; groundwater; high performance liquid chromatography; hydrolysis; iodides; iodine; oil fields; oils; plants (botany); polyacrylamide; sludge; starch; viscosity; wastewater
- Abstract:
- ... Hydrolyzed polyacrylamide (HPAM), which is extensively used for oil extraction in an oilfield, produces waste water that enters the groundwater system posing a threat to the safety of plants and animals. Among the many methods to removal the HPAM, the biodegradation based screened bacteria and sludge is an efficient method. Combined anaerobic and aerobic biological processes were used in addition ...
- DOI:
- 10.1016/j.ecoleng.2015.07.028
-
https://dx.doi.org/10.1016/j.ecoleng.2015.07.028
- Author:
- Chang, Bea-Ven; Ren, Yen-Lin
- Source:
- Ecological engineering 2015 v.75 pp. 272-277
- ISSN:
- 0925-8574
- Subject:
- Pleurotus eryngii; biodegradation; bioreactors; bioremediation; chlortetracycline; humans; microbial communities; oxytetracycline; particle size; rivers; sediments; spent mushroom compost; tetracycline; veterinary medicine; Taiwan
- Abstract:
- ... Tetracyclines (TCs), including tetracycline (TC), oxytetracycline (OTC), and chlortetracycline (CTC) are widely used in human and veterinary medicine. We investigated the aerobic degradation of three TCs in river sediment from southern Taiwan. The degradation rates in the sediment were in the order of CTC>OTC>TC. Sediment samples were separated into fractions with particle size from 2–50 to 500–20 ...
- DOI:
- 10.1016/j.ecoleng.2014.11.039
-
https://dx.doi.org/10.1016/j.ecoleng.2014.11.039
- Author:
- Staab, K.; Yannelli, F.A.; Lang, M.; Kollmann, J.
- Source:
- Ecological engineering 2015 v.84 pp. 104-112
- ISSN:
- 0925-8574
- Subject:
- Impatiens glandulifera; aboveground biomass; adverse effects; bioengineering; grasses; grasslands; greenhouse experimentation; introduced species; land use change; legumes; microhabitats; nontarget organisms; rooting; seed mixtures; seedling emergence; seeds; sowing; species diversity; vegetation cover
- Abstract:
- ... Many attempts have been made to restore semi-natural temperate grasslands that suffered substantial declines due to changes in land use in the past decades. An alternative to restoration of historical grassland is the establishment of analogous communities in new habitats like road verges. This study aims at assessing seed mixtures for road verges that cope with the need for bioengineering effecti ...
- DOI:
- 10.1016/j.ecoleng.2015.07.016
-
https://dx.doi.org/10.1016/j.ecoleng.2015.07.016
- Author:
- Sun, Ling; Zhao, Xinxin; Zhang, Huifang; Zhang, Yanqiu
- Source:
- Ecological engineering 2015 v.81 pp. 82-88
- ISSN:
- 0925-8574
- Subject:
- Thauera; aerobic conditions; anaerobic conditions; bacteria; carbon; denitrification; nitrate nitrogen; nitrate reduction; nitrogen; nitrogen dioxide; pH; phosphates; phosphorus; polyhydroxyalkanoates; ribosomal DNA; screening; staining; temperature; wastewater
- Abstract:
- ... To isolate highly efficient denitrifying phosphorus-accumulating bacteria (DPAB) for synchronous nitrogen and phosphorus removal, it is necessary to understand their biological characteristics. Using denitrification screening, polyphosphate (poly-P) and poly-β-hydroxybutyrate (PHB) granule staining, nitrate reduction, nitrate reduction producing N2, and phosphorus uptake tests, a strain of efficie ...
- DOI:
- 10.1016/j.ecoleng.2015.04.030
-
https://dx.doi.org/10.1016/j.ecoleng.2015.04.030
- Author:
- Fazal, Saima; Zhang, Beiping; Mehmood, Qaisar
- Source:
- Ecological engineering 2015 v.84 pp. 551-558
- ISSN:
- 0925-8574
- Subject:
- Eichhornia crassipes; ammonia; biological treatment; bioremediation; cadmium; chemical oxygen demand; constructed wetlands; cost effectiveness; lead; mercury; nickel; nitrates; phosphates; planting; sludge; turbidity; wastewater
- Abstract:
- ... This study investigated the effect of three integrated constructed wetlands (CW), which have been considered as efficient and cost-effective natural bioremediation systems for the removal of contaminants. Three kind of constructed wetlands were constructed: one was planted with water hyacinth, one with sludge (anaerobic wetland) and the third act as control. The wetland with water hyacinth was eff ...
- DOI:
- 10.1016/j.ecoleng.2015.09.014
-
https://dx.doi.org/10.1016/j.ecoleng.2015.09.014
- Author:
- Chirakkara, Reshma A.; Reddy, Krishna R.
- Source:
- Ecological engineering 2015 v.85 pp. 265-274
- ISSN:
- 0925-8574
- Subject:
- Avena sativa; EDTA (chelating agent); Helianthus annuus; biochar; biomass; cadmium; chromium; composts; lead; mixing; naphthalene; nutrient solutions; oats; phenanthrene; phytoremediation; plant growth; polluted soils; polycyclic aromatic hydrocarbons; soil amendments
- Abstract:
- ... Pot experiments were conducted to investigate the impact of biomass amendments (biochar, compost and nutrient solution) and chemical amendments (Ethylenediaminetetraacetic acid (EDTA) and Igepal CA-720) on the phytoremediation of soil co-contaminated with organic and metal contaminants by Helianthus annuus (sunflower) and Avena sativa (oat plant). Mixed contaminated soil was prepared by mixing cle ...
- DOI:
- 10.1016/j.ecoleng.2015.09.029
-
https://dx.doi.org/10.1016/j.ecoleng.2015.09.029
- Author:
- Mendez, Lara; Mahdy, Ahmed; Ballesteros, Mercedes; González-Fernández, Cristina
- Source:
- Ecological engineering 2015 v.84 pp. 273-277
- ISSN:
- 0925-8574
- Subject:
- Chlorella vulgaris; ammonia; anaerobic digestion; biogas; biomass; cell walls; chemical oxygen demand; digestion; hydrolysis; methane production; microalgae; mineralization; nitrogen; organic matter
- Abstract:
- ... The main challenge for an efficient anaerobic digestion using microalgal substrates is the optimization of cell wall disruption pretreatments. The objective of this work was to assess methane yield improvement using thermally pretreated Chlorella vulgaris in semicontinuous feeding operation. After thermal pretreatment, organic matter hydrolysis was confirmed by a 10-fold increase in soluble chemic ...
- DOI:
- 10.1016/j.ecoleng.2015.09.056
-
https://dx.doi.org/10.1016/j.ecoleng.2015.09.056
- Author:
- Diwediga, Badabate; Wala, Kperkouma; Folega, Fousseni; Dourma, Marra; Woegan, Yao A.; Akpagana, Koffi; Le, Quang Bao
- Source:
- Ecological engineering 2015 v.85 pp. 132-143
- ISSN:
- 0925-8574
- Subject:
- Landsat; basins; data collection; ecosystem services; forest inventory; forests; geographic information systems; humans; land management; landscapes; molybdenum; ordination techniques; plant communities; remote sensing; savannas; shrubs; soil nutrients; species diversity; topography; vegetation cover; watersheds; woodlands
- Abstract:
- ... In mountainous areas, biophysical settings and human disturbances strongly influence landscape patterns and dynamics requiring a permanent understanding of their combined influence. In this study, we investigated the diversity and patterns of wild landscapes in relation to ecological factors, human disturbances and land protection regime in the Mo river basin (Central Togo). First, we used geograp ...
- DOI:
- 10.1016/j.ecoleng.2015.09.059
-
https://dx.doi.org/10.1016/j.ecoleng.2015.09.059
- Author:
- Kang, Chang-Ho; Oh, Soo Ji; Shin, YuJin; Han, Sang-Hyun; Nam, In-Hyun; So, Jae-Seong
- Source:
- Ecological engineering 2015 v.74 pp. 402-407
- ISSN:
- 0925-8574
- Subject:
- Enterobacter cloacae; bacteria; biomineralization; bioremediation; carbon; crystals; energy-dispersive X-ray analysis; hydrolysis; lead; oxygen; scanning electron microscopy; soil; toxicity; urea; South Korea
- Abstract:
- ... Lead (Pb) is one of the most widely present heavy and toxic metals in the environment. Application of Pb-resistant bacteria to biomineralize this toxic metal could be utilized in the Pb bioremediation process. In this study, 93 ureolytic bacteria were newly isolated from the soil of abandoned metal mines. Among the isolates, Enterobacter cloacae KJ-46 and KJ-47 were selected for subsequent studies ...
- DOI:
- 10.1016/j.ecoleng.2014.10.009
-
https://dx.doi.org/10.1016/j.ecoleng.2014.10.009
- Author:
- Srivastava, Shalini; Agrawal, S.B.; Mondal, M.K.
- Source:
- Ecological engineering 2015 v.85 pp. 56-66
- ISSN:
- 0925-8574
- Subject:
- Fourier transform infrared spectroscopy; Lagerstroemia; adsorption; bark; biosorbents; biosorption; chromium; correlation; developing countries; drinking; ions; irrigation water; models; pH; scanning electron microscopy; sorption isotherms; temperature; wastewater; India
- Abstract:
- ... The contamination of drinking and irrigation water with Cr(VI) ion is a recurring challenge, especially in developing countries. In the present study, feasibility of the native and chemically modified bark of Lagerstroemia speciosa (Pride of India) as biosorbent to remove Cr(VI) from synthetic wastewater was examined. Characterization of the native L. speciosa bark (NLSB) and chemically modified L ...
- DOI:
- 10.1016/j.ecoleng.2015.10.011
-
https://dx.doi.org/10.1016/j.ecoleng.2015.10.011
- Author:
- Podstawczyk, Daria; Witek-Krowiak, Anna; Dawiec, Anna; Bhatnagar, Amit
- Source:
- Ecological engineering 2015 v.83 pp. 364-379
- ISSN:
- 0925-8574
- Subject:
- analysis of variance; aqueous solutions; biosorbents; biosorption; copper; equations; flax; ions; metal ions; neural networks; pH; prediction; response surface methodology; topology
- Abstract:
- ... In the present study, application of waste flax meal was investigated for the removal of copper(II) ions from aqueous solution. The effect of operating parameters such as metal ions concentration (20–200ppm), biosorbent dosage (1–10g/L) and solution pH (2–5) was modeled by both response surface methodology (RSM) and artificial neural network (ANN). This study compares central composite design (CCD ...
- DOI:
- 10.1016/j.ecoleng.2015.07.004
-
https://dx.doi.org/10.1016/j.ecoleng.2015.07.004
- Author:
- Singh, Rajesh; Bishnoi, Narsi R.
- Source:
- Ecological engineering 2015 v.75 pp. 103-109
- ISSN:
- 0925-8574
- Subject:
- Aspergillus flavus; biomass; biosorbents; biosorption; biotransformation; chromium; equations; glucose; models; wastewater treatment
- Abstract:
- ... The present study demonstrated a better understating of mechanism and rate controlling factors for biosorption isotherms and kinetics with special focus on the growing biomass. The experimental results were fitted well to the Langmuir, Freundlich, generalized (combined Langmuir–Freundlich), Boyd isotherm as well as the pseudo-first, pseudo second-order kinetic equations, and Elovich modeling. The ...
- DOI:
- 10.1016/j.ecoleng.2014.11.023
-
https://dx.doi.org/10.1016/j.ecoleng.2014.11.023
- Author:
- Ido, Sella; Shimrit, Perkol-Finkel
- Source:
- Ecological engineering 2015 v.84 pp. 260-272
- ISSN:
- 0925-8574
- Subject:
- Bryozoa; algae; benthic organisms; coasts; community structure; concrete; development projects; ecological value; ecosystem engineers; ecosystem services; engineering; fauna; fish; flora; food availability; habitats; infrastructure; invasive species; longevity; monitoring; oysters; planning; species diversity; Israel
- Abstract:
- ... Concrete based coastal and marine infrastructure (CMI) such as ports, piers, industrial facilities and coastal defense elements dominate coastal zones world-wide. Coastal hardening replaces natural habitats with urban/industrial waterfronts that cannot provide ecosystem services similar to those offered by undisturbed coastlines. As a result, CMI are often considered as sacrificed zones with no en ...
- DOI:
- 10.1016/j.ecoleng.2015.09.016
-
https://dx.doi.org/10.1016/j.ecoleng.2015.09.016
- Author:
- Xu, Piao; Zeng, Guangming; Huang, Danlian; Dong, Haoran; Lai, Cui; Chen, Ming; Tang, Wangwang; Li, Fangling; Leng, Yang; Cheng, Min; He, Xiaoxiao; He, Yan
- Source:
- Ecological engineering 2015 v.75 pp. 110-115
- ISSN:
- 0925-8574
- Subject:
- Phanerochaete chrysosporium; antioxidant activity; antioxidants; bioaccumulation; bioremediation; biotechnology; cadmium; heavy metals; hydrogen peroxide; superoxide dismutase; white-rot fungi
- Abstract:
- ... The white-rot fungi Phanerochaete chrysosporium have been widely applied in heavy metal bioremediation, which commonly results in a stress exposure. Exposure studies showed that Cd bioaccumulation triggered H2O2 generation. Thereafter, the H2O2, as signal molecules, activated the enzymatic antioxidant response in the case of the conjunction of SOD and CAT. High levels of R (SOD/CAT) were found ini ...
- DOI:
- 10.1016/j.ecoleng.2014.11.060
-
https://dx.doi.org/10.1016/j.ecoleng.2014.11.060
- Author:
- Gao, Jingqing; Zhang, Jingshen; Ma, Na; Wang, Wenlong; Ma, Changde; Zhang, Ruiqin
- Source:
- Ecological engineering 2015 v.84 pp. 443-450
- ISSN:
- 0925-8574
- Subject:
- Iris sibirica; aerial parts; bioaccumulation factor; cadmium; constructed wetlands; heavy metals; phytoremediation; plant characteristics; plant growth; planting; river water; rivers; roots; shoots; underground parts; wastewater; water pollution
- Abstract:
- ... Due to the increasingly serious river pollution of heavy metals, especially cadmium (Cd), the Cd pollution issues have aroused more and more political and academic attentions. In this study, microcosmic subsurface vertical flow constructed wetlands (MVFCWs) were planted with Iris sibirica to treat simulated polluted river water with different concentrations of Cd. The objective of this study was t ...
- DOI:
- 10.1016/j.ecoleng.2015.07.024
-
https://dx.doi.org/10.1016/j.ecoleng.2015.07.024
- Author:
- Zhao, Chenxi; Fu, Qinglong; Song, Wenjuan; Zhang, Daoyong; Ahati, Jiaerheng; Pan, Xiangliang; Al-Misned, Fahad A.; Mortuza, M.Golam
- Source:
- Ecological engineering 2015 v.81 pp. 107-114
- ISSN:
- 0925-8574
- Subject:
- Nostoc calcicola; bacteria; bioreactors; biosorption; cadmium; calcium; carbon; carbonate minerals; coprecipitation; heavy metals; pH; wastewater
- Abstract:
- ... Application of the conventional bioreactors based on biosorption for removal of heavy metals is limited because they can be broken through by heavy metals. The novel calcifying cyanobacteria reactors based co-precipitation of heavy metals with carbonate minerals induced by cyanobacteria may be a promising alternative technology to overcome the shortcomings of biosorption. In this study, removal of ...
- DOI:
- 10.1016/j.ecoleng.2015.04.012
-
https://dx.doi.org/10.1016/j.ecoleng.2015.04.012
- Author:
- Dixon, Simon D.; Worrall, Fred; Rowson, James G.; Evans, Martin G.
- Source:
- Ecological engineering 2015 v.75 pp. 497-505
- ISSN:
- 0925-8574
- Subject:
- Calluna vulgaris; bogs; canopy; carbon dioxide; carbon sequestration; correlation; data collection; ecosystem respiration; environmental factors; managers; models; national parks; net ecosystem exchange; peat; peatlands; photosynthesis; seasonal variation; vegetation; water table; England
- Abstract:
- ... This study seeks to investigate the role of Calluna vulgaris canopy height in the CO2 balance of ombrotrophic peatlands to address what implications this relationship may have for management of these peatlands for maximal carbon storage. This study uses a monthly dataset of CO2 flux and associated environmental variables gathered from three localities in the South Pennines and the Peak District Na ...
- DOI:
- 10.1016/j.ecoleng.2014.11.047
-
https://dx.doi.org/10.1016/j.ecoleng.2014.11.047
- Author:
- Dunalska, Julita A.; Grochowska, Jolanta; Wiśniewski, Grzegorz; Napiórkowska-Krzebietke, Agnieszka
- Source:
- Ecological engineering 2015 v.82 pp. 432-441
- ISSN:
- 0925-8574
- Subject:
- critical load; drainage channels; lakes; long term effects; models; phosphorus; physicochemical properties; pipelines; rivers; sediments; sewage; sport fishing; stormwater; subwatersheds; trophic levels; water quality
- Abstract:
- ... We investigated the effect of long-term inflow of untreated municipal sewage on the trophic status of the four urban lakes (Mielenko, Karczemne, Klasztorne Małe, Klasztorne Duże) connected by the river into one system. We delineated the catchments and sub-catchments of the individual lakes, to determine their hydrological parameters as well as the physicochemical properties of water in the lakes, ...
- DOI:
- 10.1016/j.ecoleng.2015.05.037
-
https://dx.doi.org/10.1016/j.ecoleng.2015.05.037
- Author:
- Bateganya, Najib Lukooya; Mentler, Axel; Langergraber, Guenter; Busulwa, Henry; Hein, Thomas
- Source:
- Ecological engineering 2015 v.85 pp. 173-184
- ISSN:
- 0925-8574
- Subject:
- Cyperus papyrus; aerobic conditions; ammonium compounds; carbon; carbon dioxide; chemical oxygen demand; denitrification; gas emissions; methane; methane production; nitrates; nitrification; nitrogen; nitrous oxide; nutrient content; organic matter; oxygen; planting; subsurface flow; wastewater treatment; wetland buffers; Uganda
- Abstract:
- ... This study investigated carbon (CH4, CO2) and nitrogen (N2O) gaseous fluxes as finger prints for microbial wastewater treatment processes in vertical (VF) and horizontal (HF) subsurface flow mesocosms, planted with Cyperus papyrus and operated under batch hydraulic loading. The closed chamber method was used to measure gaseous emissions for 12 weeks (April–June 2014) in Kampala, Uganda. Organic ma ...
- DOI:
- 10.1016/j.ecoleng.2015.09.081
-
https://dx.doi.org/10.1016/j.ecoleng.2015.09.081
- Author:
- Varik, Mats; Kukumägi, Mai; Aosaar, Jürgen; Becker, Hardo; Ostonen, Ivika; Lõhmus, Krista; Uri, Veiko
- Source:
- Ecological engineering 2015 v.77 pp. 284-296
- ISSN:
- 0925-8574
- Subject:
- Betula pendula; Picea; biomass; carbon; carbon sequestration; carbon sinks; chronosequences; ecosystems; environmental factors; fine roots; growing season; longevity; middle-aged adults; net ecosystem production; primary productivity; respiratory rate; soil respiration; soil temperature; temporal variation; trenching
- Abstract:
- ... Carbon (C) budgets were compiled for silver birch chronosequence stands by synthesizing the above- and belowground C pools and fluxes with the aim to assess the impact of age on stand C sequestration and cycling.The fine root (d<2mm) biomass, production, turnover rate and longevity of 13-, 32- and 45-year-old silver birch stands were determined by the ingrowth core method. Fine root production aft ...
- DOI:
- 10.1016/j.ecoleng.2015.01.041
-
https://dx.doi.org/10.1016/j.ecoleng.2015.01.041
- Author:
- Ramaraj, Rameshprabu; Tsai, David Dah-Wei; Chen, Paris Honglay
- Source:
- Ecological engineering 2015 v.75 pp. 86-92
- ISSN:
- 0925-8574
- Subject:
- absorption; carbon; carbon dioxide; carbon dioxide fixation; ecosystems; energy; freshwater; global warming; microalgae; nutrients; surface water
- Abstract:
- ... This study was undertaken as an effort to develop the knowledge that could provide information and clue regarding the algae niche in the natural environment. We utilized natural water medium to mimic natural water body in laboratory to grow algae, to understand the algae niche in the ecosystems and to demonstrate the potential of algal CO2 bio-fixation. The continuously long-term operation in the ...
- DOI:
- 10.1016/j.ecoleng.2014.11.033
-
https://dx.doi.org/10.1016/j.ecoleng.2014.11.033
- Author:
- Tsai, David Dah-Wei; Chen, Paris Honglay; Chou, Caroline Meng-jung; Hsu, Cheng-Feng; Ramaraj, Rameshprabu
- Source:
- Ecological engineering 2015 v.84 pp. 386-389
- ISSN:
- 0925-8574
- Subject:
- air; carbon; carbon dioxide; carbon sequestration; culture media; ecosystems; environmental factors; freshwater; microalgae
- Abstract:
- ... Algae play an essential role on global carbon cycle and have great potential for CO2 biofixation. The study was to investigate the carbon use potential of microalgae under imitated fresh water ecosystem. Biofixation of CO2 by microalgae mass culture represents an advanced, physicochemical, biological and ecological process that enables direct utilization of CO2 from the atmosphere. This study demo ...
- DOI:
- 10.1016/j.ecoleng.2015.09.024
-
https://dx.doi.org/10.1016/j.ecoleng.2015.09.024
- Author:
- Maheshwari, Dinesh Kumar; Dubey, Ramesh Chand; Agarwal, Mohit; Dheeman, Shrivardhan; Aeron, Abhinav; Bajpai, Vivek K.
- Source:
- Ecological engineering 2015 v.81 pp. 272-277
- ISSN:
- 0925-8574
- Subject:
- Bacillus licheniformis; Brassica juncea; Brassica rapa subsp. oleifera; Fusarium oxysporum; Pseudomonas aeruginosa; Sclerotinia sclerotiorum; Shorea robusta; ambient temperature; basins; cell viability; greenhouse production; growth promotion; industry; plant pathogenic fungi; rivers; sand; sawdust; storage time; vegetative growth; vermiculite; wastes
- Abstract:
- ... The present study was undertaken to evaluate the bioformulations of four economy viable carriers (sand from river Ganga basin, sawdust from Shorea robusta L., vermiculite (Merck), and liquid waste from cosmetic industry) based preparations using plant growth promoting (PGP) strains of Bacillus licheniformis KRB1 and Pseudomonas aeruginosa KRP1 alone as well as in combination for viability studies ...
- DOI:
- 10.1016/j.ecoleng.2015.04.066
-
https://dx.doi.org/10.1016/j.ecoleng.2015.04.066
- Author:
- Ravindran, B.; Contreras-Ramos, S.M.; Sekaran, G.
- Source:
- Ecological engineering 2015 v.74 pp. 394-401
- ISSN:
- 0925-8574
- Subject:
- Daucus carota; Eudrilus eugeniae; biodegradation; carrots; cattle manure; digestive system; earthworms; enzyme activity; enzymes; germination; gibberellic acid; indole acetic acid; kinetin; leather; microorganisms; phytotoxicity; plant litter; solid wastes; tanneries; tannery waste; vermicomposting; vermicomposts
- Abstract:
- ... Tanneries produce enormous quantities of solid waste including animal fleshing (ANFL) which is a major solid waste generated during pre-tanning operations of leather processing and needs to be disposed of in a safe and environmentally sound way. The aim of this study was to evaluate how the combination of earthworms and microorganisms could enhance the biodegradation of fermented tannery waste mix ...
- DOI:
- 10.1016/j.ecoleng.2014.10.014
-
https://dx.doi.org/10.1016/j.ecoleng.2014.10.014
- Author:
- Zhang, Chao; Liu, Guobin; Xue, Sha; Wang, Guoliang
- Source:
- Ecological engineering 2015 v.75 pp. 161-171
- ISSN:
- 0925-8574
- Subject:
- Artemisia capillaris; Artemisia gmelinii; Gram-negative bacteria; Gram-positive bacteria; aboveground biomass; amino acids; carbohydrates; carbon; community structure; cropland; functional diversity; fungi; host plants; microbial biomass; microbial communities; nitrogen content; phenolic acids; phospholipid fatty acids; polymers; roots; soil; soil organic carbon; China
- Abstract:
- ... This study examined the structure and function of rhizospheric microbial communities of two successionally dominant species (Artemisia capillaries and Artemisia sacrorum) during the natural recovery of abandoned cropland on the Loess Plateau in China. Soil samples were collected from the roots of A. capillaries from cropland abandoned for 1, 3, 5, 10, and 13 years and from the roots of A. sacrorum ...
- DOI:
- 10.1016/j.ecoleng.2014.11.059
-
https://dx.doi.org/10.1016/j.ecoleng.2014.11.059
- Author:
- Liu, Bing; Zhao, Wenzhi; Liu, Zhiling; Yang, Yuting; Luo, Weicheng; Zhou, Hai; Zhang, Yongyong
- Source:
- Ecological engineering 2015 v.81 pp. 301-311
- ISSN:
- 0925-8574
- Subject:
- Asteraceae; Fabaceae; Poaceae; Zygophyllaceae; aboveground biomass; afforestation; case studies; desertification; deserts; habitats; herbaceous plants; infiltration (hydrology); plant communities; rain; semiarid zones; shrubs; soil crusts; soil water; soil water balance; species diversity; steppes; surveys; vegetation cover; China
- Abstract:
- ... Afforestation is a key technique for the control of desertification and environmental deterioration in arid and semiarid regions. Therefore, it is important to quantify the influence of the succession that results from afforestation on biodiversity conservation and ecological environment. Here, we describe a case study in the sand-binding vegetation communities in China’s semiarid desert steppe in ...
- DOI:
- 10.1016/j.ecoleng.2015.04.014
-
https://dx.doi.org/10.1016/j.ecoleng.2015.04.014
- Author:
- Xiao, Ye; Huang, Zhigang; Lu, Xianguo
- Source:
- Ecological engineering 2015 v.82 pp. 381-389
- ISSN:
- 0925-8574
- Subject:
- Actinomyces; Calamagrostis purpurea subsp. purpurea; Carex lasiocarpa; Phragmites australis; Salix; bacteria; beta-fructofuranosidase; carbon; catalase; dissolved organic carbon; endo-1,4-beta-glucanase; enzyme activity; fungi; microbial biomass; oxidation; prediction; soil depth; soil microorganisms; soil organic carbon; wetland soils; wetlands; China
- Abstract:
- ... Soil labile organic carbon (LOC) fractions can response rapidly to environmental change and are essential to soil C cycling. There has been very little evaluation about the distribution differentiation of soil LOC factions in high-altitude wetlands. In this study, four typical wetland types were investigated in Sanjiang Plain of northeast China, including: (1) a mixed Calamagrostis angustifolia an ...
- DOI:
- 10.1016/j.ecoleng.2015.05.015
-
https://dx.doi.org/10.1016/j.ecoleng.2015.05.015
- Author:
- Zhang, Wenqiang; Shan, Baoqing; Li, Jie; Tang, Wenzhong; Jin, Xin; Zhang, Hong; Ding, Yuekui; Wang, Yuanyue; Zhu, Xiaolei
- Source:
- Ecological engineering 2015 v.75 pp. 264-271
- ISSN:
- 0925-8574
- Subject:
- biogeography; desorption; ecosystems; environmental assessment; estuaries; eutrophication; lakes; phosphorus; risk; risk assessment; rivers; sediments; wetlands; China
- Abstract:
- ... Surface sediments in different ecosystems (lake, river, reservoir, estuary and wetland) in Eastern China were extracted with NaOH–EDTA, and the extracts were analyzed by 31P-NMR to reveal the phosphorus (P) species distribution. The P release risk was also assessed by sorption experiments. The river sediments accumulated significant amounts of P compared with other sediments. The organic phosphoru ...
- DOI:
- 10.1016/j.ecoleng.2014.11.055
-
https://dx.doi.org/10.1016/j.ecoleng.2014.11.055
- Author:
- Tang, Xuguang; Ding, Zhi; Li, Hengpeng; Li, Xinyan; Luo, Juhua; Xie, Jing; Chen, Dongqiang
- Source:
- Ecological engineering 2015 v.85 pp. 212-217
- ISSN:
- 0925-8574
- Subject:
- Glycine max; Zea mays; carbon; corn; crop rotation; crop yield; cropland; ecosystems; eddy covariance; environmental performance; farming systems; hydrology; moderate resolution imaging spectroradiometer; net ecosystem exchange; satellites; seedlings; solar radiation; soybeans; temperature; uncertainty; water use efficiency
- Abstract:
- ... How to quantify the variability in ecosystem water use efficiency (WUE) of croplands is of vital importance. Especially in the context of changing hydrologic environment, much attention need to be paid on how to use limited water to improve crop yield. However, the biophysical performances of environmental/biological controls, crop types, and effects of diverse farming practices on WUE remain uncl ...
- DOI:
- 10.1016/j.ecoleng.2015.09.078
-
https://dx.doi.org/10.1016/j.ecoleng.2015.09.078
- Author:
- Testa, Riccardo; Foderà, Mario; Di Trapani, Anna Maria; Tudisca, Salvatore; Sgroi, Filippo
- Source:
- Ecological engineering 2015 v.83 pp. 227-232
- ISSN:
- 0925-8574
- Subject:
- Olea europaea; case studies; coasts; crops; farmers; farms; fruit growing; labor; lemons; markets; orchards; organic foods; organic production; prices; rural areas; trees; vineyards; Sicily
- Abstract:
- ... Sicily has a long tradition in citrus fruit cultivation that, with vineyard and olive tree, represents the main Mediterranean tree crops. Since many Sicilian farmers in recent years have decided to abandon conventional lemon orchards, in this paper we have evaluated the financial sustainability of organic lemon production by comparing it with the conventional one.Financial analysis has been carrie ...
- DOI:
- 10.1016/j.ecoleng.2015.06.021
-
https://dx.doi.org/10.1016/j.ecoleng.2015.06.021
- Author:
- Wang, Yunqiang; Shao, Ming'an; Zhang, Chencheng; Han, Xiangwei; Mao, Tianxu; Jia, Xiaoxu
- Source:
- Ecological engineering 2015 v.74 pp. 213-222
- ISSN:
- 0925-8574
- Subject:
- arid lands; grasslands; land use; orchards; plateaus; semiarid zones; shrublands; soil erosion; soil water; soil water content; China
- Abstract:
- ... The natural environments in the semiarid regions of the Chinese Loess Plateau (CLP) are fragile due to the serious soil erosion and the weak ecological services of the plants. To ascertain and then evaluate a sustainable land-use pattern in these regions, we selected six typical land-use patterns (i.e., a farmland, a natural grassland, a homogeneous shrubland (S), a mix of shrubland and cultivated ...
- DOI:
- 10.1016/j.ecoleng.2014.10.001
-
https://dx.doi.org/10.1016/j.ecoleng.2014.10.001
- Author:
- Mona, Sharma; Kaushik, Anubha
- Source:
- Ecological engineering 2015 v.82 pp. 121-125
- ISSN:
- 0925-8574
- Subject:
- Nostoc linckia; adsorption; aqueous solutions; biosorption; chromium; cobalt; exopolysaccharides; freshwater; ions; metal ions; models; pH; sorption isotherms
- Abstract:
- ... This study investigated biosorption of chromium(VI) and cobalt(II) by exopolysaccharides (EPS) of a freshwater cyanobacterium, Nostoc linckia HA-46 from aqueous solution. Experiments were performed in batch mode to determine the adsorption dynamics of the cyanobacterial EPS. The adsorption capacity for Cr(VI) and Co(II) ions by EPS is found to be dependent on pH, contact time and initial metal ion ...
- DOI:
- 10.1016/j.ecoleng.2015.04.037
-
https://dx.doi.org/10.1016/j.ecoleng.2015.04.037
- Author:
- Pagliara, Stefano; Mahmoudi Kurdistani, Sahameddin
- Source:
- Ecological engineering 2015 v.83 pp. 386-393
- ISSN:
- 0925-8574
- Subject:
- aquatic habitat; geometry; rivers; streams; vanes
- Abstract:
- ... J-Hook Vanes are in-stream river grade-control structures to reduce stress along the outside of the river bends and to promote scour in the pools and improving the aquatic habitat. The main purpose of this study is to investigate the effect of the channel curvature on the scour hole characteristics and morphologies downstream of J-Hook structures. The main scour geometry parameters have been analy ...
- DOI:
- 10.1016/j.ecoleng.2015.07.003
-
https://dx.doi.org/10.1016/j.ecoleng.2015.07.003
- Author:
- Mosner, Eva; Weber, Arnd; Carambia, Maria; Nilson, Enno; Schmitz, Ulf; Zelle, Bianka; Donath, Tobias; Horchler, Peter
- Source:
- Ecological engineering 2015 v.82 pp. 493-511
- ISSN:
- 0925-8574
- Subject:
- biogeography; climate change; climate models; floodplains; habitats; hydrology; rivers; temperature; uncertainty; vegetation types; Central European region; Rhine River
- Abstract:
- ... Climate change is expected to alter temperature and precipitation patterns and thereby river discharges. As floodplain vegetation types in Central Europe are mainly structured by the local hydrologic conditions of the river, alterations in the flow regime should lead to changes in the structure of floodplain communities, too. However, much uncertainty about potential hydrologic changes exists due ...
- DOI:
- 10.1016/j.ecoleng.2015.05.013
-
https://dx.doi.org/10.1016/j.ecoleng.2015.05.013
- Author:
- Kwak, Jin-Hyeob; Chang, Scott X.; Naeth, M. Anne; Schaaf, Wolfgang
- Source:
- Ecological engineering 2015 v.84 pp. 13-21
- ISSN:
- 0925-8574
- Subject:
- ammonium compounds; carbon nitrogen ratio; coarse woody debris; forest litter; habitats; leachates; mineral soils; mineralization; mining; nitrification; nitrogen; nitrogen cycle; oil sands; organic matter; peat; plant growth; rain; Canada
- Abstract:
- ... Forest floor mineral soil mix (FMM) and peat mineral soil mix (PMM) are common cover soils and sources of organic matter for reclamation of open-pit mining disturbed land in the Athabasca oil sands region. Coarse woody debris (CWD) can be an additional source of organic matter and can provide nutrient and habitat for plant growth. However, the effect of CWD on nitrogen (N) cycling in reclaimed oil ...
- DOI:
- 10.1016/j.ecoleng.2015.07.012
-
https://dx.doi.org/10.1016/j.ecoleng.2015.07.012
- Author:
- Miloshis, M.; Fairfield, C.A.
- Source:
- Ecological engineering 2015 v.75 pp. 195-198
- ISSN:
- 0925-8574
- Subject:
- ecosystem engineering; engineering; freshwater; land management; planning; rivers; sea level; stakeholders; symbiosis; wetlands; Northern Territory
- Abstract:
- ... This study focuses on coastal management issues relevant to key decision-makers in Australia’s Northern Territory with respect to growing concerns about the effects of sea level rise on coastal freshwater wetlands. There is a growing global knowledge base and understanding of the symbiotic relationship between ecological forms of coastal protection and benefits to both small- and large-scale anthr ...
- DOI:
- 10.1016/j.ecoleng.2014.12.002
-
https://dx.doi.org/10.1016/j.ecoleng.2014.12.002
- Author:
- Mayr, Magdalena; Jerney, Jacqueline; Schagerl, Michael
- Source:
- Ecological engineering 2015 v.74 pp. 310-318
- ISSN:
- 0925-8574
- Subject:
- algae; biofilm; biological treatment; biomass; combustion; environmental health; eutrophication; fatty acids; feedstocks; fermentation; fertilizers; fuels; gravel; lawns and turf; nutrients; phosphates; phosphorus; plankton; stream channels; surface water; Austria; Danube River
- Abstract:
- ... Anthropogenic eutrophication of surface waters may cause mass development of algae, including cyanoprokaryotes, with serious effects on ecosystem health. In the current study, drastic hydrological changes initiated a eutrophication process of a former backwater of the river Danube (Austria). As a first restoration measure, a gravel filter followed by a phosphate trap was installed in 2007. Because ...
- DOI:
- 10.1016/j.ecoleng.2014.10.034
-
https://dx.doi.org/10.1016/j.ecoleng.2014.10.034
- Author:
- Li, Sheng-nan; Nan, Jun; Li, Hao-yu; Yao, Meng
- Source:
- Ecological engineering 2015 v.82 pp. 138-144
- ISSN:
- 0925-8574
- Subject:
- chemical oxygen demand; mixing; wastewater treatment; working conditions
- Abstract:
- ... The plane folded plate reactor (PFPR) and opposite folded plate reactor (OFPR) are two types of anaerobic baffled reactor (ABR) with similar design concepts and principles. Residence time distribution (RTD) analysis on the PFPR and OFPR under clean and working conditions at the same hydraulic residence time (HRT) of 4, 6, 8 and 10h were performed to investigate mixing patterns and dead space. The ...
- DOI:
- 10.1016/j.ecoleng.2015.04.095
-
https://dx.doi.org/10.1016/j.ecoleng.2015.04.095
- Author:
- Song, Xinshan; Ding, Yi; Wang, Yuhui; Wang, Wei; Wang, Gang; Zhou, Bin
- Source:
- Ecological engineering 2015 v.74 pp. 1-7
- ISSN:
- 0925-8574
- Subject:
- ammonia; biomass production; chemical oxygen demand; constructed wetlands; denitrification; nitrification; nitrogen; porosity; quartz; sand
- Abstract:
- ... This study investigated the discrepancies in nitrogen removal and clogging for vertical flow constructed wetlands (VFCWs) using different packing strategies. Parallel lab-scale VFCWs reactors were created and packed with quartz sand filter media. Three packing strategies were adopted: increasing-sized (I-packing), decreasing-sized (D-packing) and uniform-sized (U-packing) packing. The clogging rat ...
- DOI:
- 10.1016/j.ecoleng.2014.08.008
-
https://dx.doi.org/10.1016/j.ecoleng.2014.08.008
- Author:
- Zhang, Xinhou; Song, Changchun; Mao, Rong; Song, Yanyu; Meng, Henan
- Source:
- Ecological engineering 2015 v.81 pp. 14-18
- ISSN:
- 0925-8574
- Subject:
- Calamagrostis; air; carbon; carbon cycle; culms; ecosystems; freshwater; leaves; macrophytes; marshes; nitrogen; nutrient content; phosphorus; sediments; shoots; China
- Abstract:
- ... Litter decay is a fundamental process in ecosystem carbon flux and nutrient cycling. In wetlands, shoot litters on the sediment surface and in the air are important components of the detritus pool. We used the litterbag method to compare mass losses and nutrient dynamics of culms, sheaths, and leaves from Deyeuxia angustifolia on the sediment surface and in the air from October 2011 to October 201 ...
- DOI:
- 10.1016/j.ecoleng.2015.04.020
-
https://dx.doi.org/10.1016/j.ecoleng.2015.04.020
- Author:
- Vega, José A.; Fernández, Cristina; Fonturbel, Teresa
- Source:
- Ecological engineering 2015 v.74 pp. 206-212
- ISSN:
- 0925-8574
- Subject:
- fire severity; grasses; indigenous species; managers; mulching; rain; rain intensity; sediment yield; soil; soil erosion; soil stabilization; sowing; straw; vegetation cover; wildfires; Spain
- Abstract:
- ... Ecoengineering treatments are increasingly being used as a feasible and efficient alternative for soil stabilization after wildfire and soil erosion mitigation. This study assessed the effectiveness of two of those treatments to reduce soil erosion after a severe wildfire in NW Spain: straw mulch+seeding (2.5Mgha−1+3gm−2), seeding (3gm−2) compared to a control (untreated burned area).During the st ...
- DOI:
- 10.1016/j.ecoleng.2014.10.019
-
https://dx.doi.org/10.1016/j.ecoleng.2014.10.019
- Author:
- Caicedo, P.V.; Rahman, K.Z.; Kuschk, P.; Blumberg, M.; Paschke, A.; Janzen, W.; Schüürmann, G.
- Source:
- Ecological engineering 2015 v.74 pp. 48-55
- ISSN:
- 0925-8574
- Subject:
- Phragmites australis; aboveground biomass; aerial parts; agricultural land; biosolids; calcium; carbon; chromium; copper; dewatering; drying; heavy metals; iron; land application; lead; magnesium; manganese; mineralization; molybdenum; nickel; nitrogen; nutrients; organic matter; phosphorus; phytomass; potassium; rhizomes; roots; sewage sludge; zinc
- Abstract:
- ... The fate of heavy metals (HMs) and nutrients along the vertical profile within the sludge layer and their accumulation into reed plant (Phragmites australis) biomass from SDRBs of different running times or ages has not been well documented until now. In this study, dried biosolid samples along the vertical profile of the sludge layer (0–2, 2–10, 10–20, 20–30cm) and plant biomass samples (roots, r ...
- DOI:
- 10.1016/j.ecoleng.2014.10.025
-
https://dx.doi.org/10.1016/j.ecoleng.2014.10.025
- Author:
- C. Pietro, Kathleen; Ivanoff, Delia
- Source:
- Ecological engineering 2015 v.79 pp. 143-157
- ISSN:
- 0925-8574
- Subject:
- constructed wetlands; drought; phosphorus; sediment transport; stormwater management; surface water; urban runoff; Florida
- Abstract:
- ... The Everglades Stormwater Treatment Areas (STAs) have been constructed as a component of the Everglades restoration in southern Florida, U.S.A. These large-scale treatment wetlands function to remove excess phosphorus (P) from agricultural and urban runoff. The STAs can receive variable inflow hydraulic and P loading in response to storm events or regional droughts and are operated under state and ...
- DOI:
- 10.1016/j.ecoleng.2014.12.013
-
https://dx.doi.org/10.1016/j.ecoleng.2014.12.013
- Author:
- Toscano, Attilio; Marzo, Alessia; Milani, Mirco; Cirelli, Giuseppe L.; Barbagallo, Salvatore
- Source:
- Ecological engineering 2015 v.75 pp. 155-160
- ISSN:
- 0925-8574
- Subject:
- Arundo donax; Chrysopogon; Miscanthus giganteus; Phragmites australis; constructed wetlands; filters; gravel; macrophytes; planting; pollutants; vegetation; wastewater; wastewater treatment; Italy; Sicily
- Abstract:
- ... Constructed wetlands (CWs) are wastewater treatment systems suitable for reducing a contaminant load in wastewater, economically. In this study, vegetated and unplanted pilot gravel filters, for tertiary treatment of effluent from a conventional wastewater treatment plant (trickling filter) in Southern Italy (Sicily), are compared with pollutant removal efficiencies. Two beds are unplanted (contro ...
- DOI:
- 10.1016/j.ecoleng.2014.12.005
-
https://dx.doi.org/10.1016/j.ecoleng.2014.12.005
- Author:
- Zhang, Jian; Wang, Qian; Fan, Jinlin; Xie, Huijun; Liu, Cui; Liang, Shuang; Hu, Zhen; Yang, Zhongchen; Zhao, Congcong
- Source:
- Ecological engineering 2015 v.82 pp. 376-380
- ISSN:
- 0925-8574
- Subject:
- Arundo donax; Cyanobacteria; Phragmites australis; Proteobacteria; Typha orientalis; constructed wetlands; microbial communities; photosynthetic bacteria; planting; pollutants; quantitative polymerase chain reaction; sequence analysis; summer; temperature
- Abstract:
- ... The performances of constructed wetlands (CWs) with different plant species have been extensively studied and compared, but no general conclusion has been found, especially in warm temperatures. Wetlands were planted with Phragmites australis (PA), Typha orientalis (TO) and Arundo donax (AD) were set up with unplanted ones as control (CT). The performances of wetlands in summer were measured. The ...
- DOI:
- 10.1016/j.ecoleng.2015.05.026
-
https://dx.doi.org/10.1016/j.ecoleng.2015.05.026
- Author:
- Hofmeister, Kathryn L.; Cianfrani, Christina M.; Hession, W. Cully
- Source:
- Ecological engineering 2015 v.78 pp. 101-111
- ISSN:
- 0925-8574
- Subject:
- air flow; air temperature; ambient temperature; aquatic organisms; canopy; chemical control; cold; cooling; ecosystems; forests; groundwater; heat transfer; land cover; land use; regression analysis; species diversity; spring; streams; water quality; water temperature; watersheds; Virginia
- Abstract:
- ... Stream temperature is a vital characteristic of stream ecosystems and has a strong control on chemical and biological processes. Water temperatures, particularly in small streams with low flows, can be affected by riparian vegetation and land cover. We designed a study using in situ temperature sensors to examine the annual thermal regime of Stroubles Creek, a small stream in Blacksburg, VA, acros ...
- DOI:
- 10.1016/j.ecoleng.2014.05.019
-
https://dx.doi.org/10.1016/j.ecoleng.2014.05.019
- Author:
- McCullough, C.D.
- Source:
- Ecological engineering 2015 v.85 pp. 328-338
- ISSN:
- 0925-8574
- Subject:
- aesthetics; coal; drinking water; ecosystems; guidelines; lakes; livestock; mining; pH; rain; risk; river water; rivers; toxicity; water quality; zinc
- Abstract:
- ... Mining typically diverts natural water courses during operations which are then not reinstated at closure allowing an isolated pit lake to form in the open cut void. Pit lake water quality may then degrade over time.A heavy rainfall event led a diverted river to breach a large acidic, coal mine pit lake allowing assessment of river flow-through for both lake and downstream river environments.Lake ...
- DOI:
- 10.1016/j.ecoleng.2015.10.001
-
https://dx.doi.org/10.1016/j.ecoleng.2015.10.001
- Author:
- Calheiros, Cristina S.C.; Bessa, Vânia S.; Mesquita, Raquel B.R.; Brix, Hans; Rangel, António O.S.S.; Castro, Paula M.L.
- Source:
- Ecological engineering 2015 v.79 pp. 1-7
- ISSN:
- 0925-8574
- Subject:
- Agapanthus africanus; Canna indica; Watsonia; Zantedeschia aethiopica; aesthetics; ammonium compounds; biochemical oxygen demand; biodiversity; chemical oxygen demand; clay; coliform bacteria; constructed wetlands; cut flowers; infrastructure; ornamental plants; phosphates; planting; sewage; subsurface flow; tourism; wastewater treatment; Portugal
- Abstract:
- ... Sewage management in remote rural and mountain areas constitutes a challenge because of the lack of adequate infrastructure and economic capability. Tourism facilities, in particular, possess a special challenge because of huge variability in sewage production and composition as a consequence of variations in number of guests and their activities. Constructed wetlands (CWs) are recognized as a rob ...
- DOI:
- 10.1016/j.ecoleng.2015.03.001
-
https://dx.doi.org/10.1016/j.ecoleng.2015.03.001
- Author:
- Tuhy, Łukasz; Samoraj, Mateusz; Witkowska, Zuzanna; Rusek, Piotr; Chojnacka, Katarzyna
- Source:
- Ecological engineering 2015 v.84 pp. 370-374
- ISSN:
- 0925-8574
- Subject:
- biomass; biosorption; ions; manganese; operating costs; prices; production technology; spent mushroom compost; trace element fertilizers; wages and remuneration; zinc
- Abstract:
- ... The paper presents a pilot-plant for the biosorption and the technology of the production of micronutrient fertilizer components that are based on spent mushroom substrate with a qualitative and a quantitative description as well as an economic analysis thereof. The biomass was enriched with zinc and manganese ions, which resulted in good biosorption capacities: −15.84 and 11.81mg/g for Zn(II) and ...
- DOI:
- 10.1016/j.ecoleng.2015.09.032
-
https://dx.doi.org/10.1016/j.ecoleng.2015.09.032