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1. Optimization method for Microcystis bloom mitigation by hydrogen peroxide and its stimulative effects on growth of chlorophytes

Author:
Wang, Binliang; Song, Qingyang; Long, Jijian; Song, Gaofei; Mi, Wujuan; Bi, Yonghong
Source:
Chemosphere 2019 v.228 pp. 503-512
ISSN:
0045-6535
Subject:
total dissolved nitrogen,   etc   ; Chlamydomonas; Microcystis aeruginosa; algicides; dissolved organic matter; dominant species; hydrogen peroxide; nutrients; organic carbon; phosphates; system optimization;     Show all 11 Subjects
Abstract:
... Hydrogen peroxide (HP) is a feasible algicide to control cyanobacterial blooms, but its application in the waters with strong reductive power is still a problem. The rapid decomposition rate of HP results in a short residence time in the waters, which renders the failure of bloom mitigation. In this study, the damage of Microcystis aeruginosa (M. aeruginosa) by HP, the optimization method for Micr ...
DOI:
10.1016/j.chemosphere.2019.04.138

2. Riverine dissolved organic carbon and its optical properties in a permafrost region of the Upper Heihe River basin in the Northern Tibetan Plateau

Author:
Gao, Tanguang; Kang, Shichang; Chen, Rensheng; Zhang, Taigang; Zhang, Tingjun; Han, Chuntan; Tripathee, Lekhendra; Sillanpää, Mika; Zhang, Yulan
Source:
The Science of the total environment 2019 v.686 pp. 370-381
ISSN:
0048-9697
Subject:
total dissolved nitrogen,   etc   ; absorbance; aromatic compounds; basins; climate change; dissolved organic carbon; drainage; permafrost; rivers; snowpack; spring; summer; watersheds; Arctic region; China;     Show all 15 Subjects
Abstract:
... Riverine dissolved organic carbon (DOC) and its optical properties were investigated in two sub-river basins (Yeniugou and Hulugou river) of the Upper Heihe river basin in the northern Tibetan Plateau. The results showed that DOC concentrations ranged from 0.25 to 12.2 and 0.18–1.04 mg L−1 for Yeniugou and Hulugou river basin with an average of 0.82 and 0.33 mg L−1, respectively. Export of DOC fro ...
DOI:
10.1016/j.scitotenv.2019.05.478

3. Excess nutrient loads to Lake Taihu: Opportunities for nutrient reduction

Author:
Wang, Mengru; Strokal, Maryna; Burek, Peter; Kroeze, Carolien; Ma, Lin; Janssen, Annette B.G.
Source:
The Science of the total environment 2019 v.664 pp. 865-873
ISSN:
0048-9697
Subject:
total dissolved nitrogen,   etc   ; anthropogenic activities; chlorophyll; critical load; eutrophication; intensive farming; lakes; mineral fertilizers; models; nitrogen; nutrient use efficiency; nutrients; phosphorus; rivers; sewage systems; urbanization; wastewater treatment;     Show all 17 Subjects
Abstract:
... Intensive agriculture and rapid urbanization have increased nutrient inputs to Lake Taihu in recent decades. This resulted in eutrophication. We aim to better understand the sources of river export of total dissolved nitrogen (TDN) and phosphorus (TDP) to Lake Taihu in relation to critical nutrient loads. We implemented the MARINA-Lake (Model to Assess River Inputs of Nutrients to seAs) model for ...
DOI:
10.1016/j.scitotenv.2019.02.051

4. The nutrient footprint of a submerged‐cage offshore aquaculture facility located in the tropical Caribbean

Author:
Welch, Aaron W.; Knapp, Angela N.; El Tourky, Sharein; Daughtery, Zachary; Hitchcock, Gary; Benetti, Daniel
Source:
Journal of the World Aquaculture Society 2019 v.50 no.2 pp. 299-316
ISSN:
0893-8849
Subject:
total dissolved nitrogen,   etc   ; chlorophyll; dissolved oxygen; farms; fish culture; nitrates; nitrites; nutrients; organic nitrogen; particulate organic carbon; sediments; stakeholders; Caribbean; United States;     Show all 14 Subjects
Abstract:
... The effect of effluent generated by a commercially scaled offshore (~13 km) finfish aquaculture facility in the tropical Caribbean on the water column and benthic nutrients and chlorophyll‐a is described. Water column samples were collected up‐ and downstream of the site at various times between 2012 and 2018. Typically, no significant difference in dissolved oxygen, chlorophyll‐a, particulate org ...
DOI:
10.1111/jwas.12593

5. Urban wastewater photobiotreatment with microalgae in a continuously operated photobioreactor: growth, nutrient removal kinetics and biomass coagulation–flocculation

Author:
Mennaa, Fatima Zahra; Arbib, Zouhayr; Perales, José Antonio
Source:
Environmental technology 2019 v.40 no.3 pp. 342-355
ISSN:
1479-487X
Subject:
total dissolved nitrogen,   etc   ; aluminum sulfate; biomass; carbon dioxide; coagulants; environmental technology; ferric chloride; ferric sulfate; flocculants; harvesting; microalgae; pH; phosphorus; photobioreactors; polymers; wastewater;     Show all 16 Subjects
Abstract:
... The aim of this study was to investigate the growth, nutrient removal and harvesting of a natural microalgae bloom cultivated in urban wastewater in a bubble column photobioreactor. Batch and continuous mode experiments were carried out with and without pH control by means of CO₂ dosage. Four coagulants (aluminium sulphate, ferric sulphate, ferric chloride and polyaluminium chloride (PAC)) and fiv ...
DOI:
10.1080/09593330.2017.1393011

6. Dissolved carbon, greenhouse gases, and δ13C dynamics in four estuaries across a land use gradient

Author:
Looman, Arun; Santos, Isaac R.; Tait, Douglas R.; Webb, Jackie; Holloway, Ceylena; Maher, Damien T.
Source:
Aquatic sciences 2019 v.81 no.1 pp. 22
ISSN:
1015-1621
Subject:
total dissolved nitrogen,   etc   ; carbon cycle; carbon dioxide; dissolved organic carbon; estuaries; greenhouse gases; hydrology; land use; methane; nutrient availability; nutrients; phosphorus; stable isotopes; streams; watersheds;     Show all 15 Subjects
Abstract:
... Land use is a well known driver of nutrient dynamics in estuaries, however less is known about how land use may influence the coastal carbon (C) cycle. Here, we report dissolved carbon concentrations, δ¹³C isotopic signatures, and water–air CO₂ and CH₄ fluxes for four Australian estuaries with contrasting catchment land use ranging from 9 to 72% natural. Water samples were collected during dry and ...
DOI:
10.1007/s00027-018-0617-9

7. Correction to: Influence of Biochar from Slow Pyrolysis on Dissolved Organic Carbon and Total Dissolved Nitrogen Levels of Urban Storm-Water Runoff

Author:
Mancinelli, Enrico; Baltrėnaitė, Edita; Baltrėnas, Pranas; Grubliauskas, Raimondas; Marčiulaitienė, Eglė; Passerini, Giorgio; Pranskevičius, Mantas
Source:
Water, air, and soil pollution 2018 v.229 no.8 pp. 265
ISSN:
0049-6979
Subject:
total dissolved nitrogen,   etc   ; biochar; dissolved organic carbon; pyrolysis; runoff; statistical analysis;     Show all 6 Subjects
Abstract:
... In the original publication, the numbers 289 and 290 were added in Table 1 footnote. The table footnote should read “Flow-rates are shown as the mean value (n = 5) ± standard deviation. USWR urban storm-water runoff”. ...
DOI:
10.1007/s11270-018-3927-6

8. Synergy of carbon and nitrogen removal of a co-culture of two aerobic denitrifying bacterial strains, Acinetobacter sp. GA and Pseudomonas sp. GP

Author:
Guo, Yan; Yang, Ruili; Zhang, Zhaoji; Wang, Xiaojun; Ye, Xin; Chen, Shaohua
Source:
RSC advances 2018 v.8 no.38 pp. 21558-21565
ISSN:
2046-2069
Subject:
total dissolved nitrogen,   etc   ; Acinetobacter; Pseudomonas; bacteria; coculture; denitrification; denitrifying microorganisms; nitrogen; pollution control; total organic carbon;     Show all 10 Subjects
Abstract:
... Two newly isolated aerobic denitrifying bacterial strains (Acinetobacter sp. GA and Pseudomonas sp. GP) were co-cultured to investigate the synergy of carbon and nitrogen removal of different functional bacteria. The co-culture showed higher efficiency for removing total organic carbon (TOC) and total dissolved nitrogen (TDN) than strain GA or GP cultured separately. The inoculation ratio of 50 (s ...
DOI:
10.1039/c8ra02721h

9. Simultaneous determination of total dissolved nitrogen and total dissolved phosphorus in natural waters with an on-line UV and thermal digestion

Author:
Lin, Kunning; Pei, Junxian; Li, Peicong; Ma, Jian; Li, Quanlong; Yuan, Dongxing
Source:
Talanta 2018 v.185 pp. 419-426
ISSN:
0039-9140
Subject:
total dissolved nitrogen,   etc   ; colorimetry; detection limit; experimental design; models; monitoring; nitrates; nitrogen; phosphates; phosphorus; total dissolved phosphorus;     Show all 11 Subjects
Abstract:
... A flow injection method combined with an on-line UV and thermal digestion for simultaneous determination of total dissolved nitrogen (TDN) and total dissolved phosphorus (TDP) in natural waters was established in this study. A novel flow manifold made the proposed system compact and automatic. The conversion rates of various nitrogen and phosphorus compounds to their nitrate and phosphate forms wi ...
DOI:
10.1016/j.talanta.2018.03.085

10. Effects of nitrogen forms and supply modes on colony formation in Microcystis aeruginosa

Author:
Qu, Zhi; Zhao, Miaomiao; Duan, Pengfei; Li, Ming
Source:
Journal of applied phycology 2018 v.30 no.2 pp. 831-837
ISSN:
0921-8971
Subject:
total dissolved nitrogen,   etc   ; Microcystis aeruginosa; ammonium; aquatic ecosystems; growth retardation; human health; nitrates; nitrogen; polysaccharides; risk; urea; water quality;     Show all 12 Subjects
Abstract:
... Microcystis blooms can lead to a decline in water quality and ecological damage, and pose risks to human health. Therefore, studies on the mechanisms of Microcystis colony formation and bloom occurrence are of great significance for the aquatic ecosystem. In this study, Microcystis aeruginosa was cultured with nitrate, ammonium, or urea as the nitrogen source in the medium to investigate the effec ...
DOI:
10.1007/s10811-017-1327-8

11. Linking water quality with the total pollutant load control management for nitrogen in Jiaozhou Bay, China

Author:
Li, Keqiang; He, Jian; Li, Junlong; Guo, Quan; Liang, Shengkang; Li, Yanbin; Wang, Xiulin
Source:
Ecological indicators 2018 v.85 pp. 57-66
ISSN:
1470-160X
Subject:
total dissolved nitrogen,   etc   ; ammonium nitrogen; eutrophication; nitrate nitrogen; nitrogen; pollution load; rivers; seawater; sewage treatment; society; water quality; watersheds; China;     Show all 13 Subjects
Abstract:
... Eutrophication was once the most serious problem for the overload of nitrogen in Jiaozhou Bay, with the development of society and the economy of Qingdao, China. Total pollutant load control management (TPLCM) was applied for 10 years via two five-year plans since 2006 in Qingdao, China, and it was further strengthened after 2011. To evaluate the effect of TPLCM on the water quality of Jiaozhou Ba ...
DOI:
10.1016/j.ecolind.2017.10.019

12. Increasing nitrogen export to sea: A scenario analysis for the Indus River

Author:
Wang, Mengru; Tang, Ting; Burek, Peter; Havlík, Petr; Krisztin, Tamás; Kroeze, Carolien; Leclère, David; Strokal, Maryna; Wada, Yoshihide; Wang, Yaoping; Langan, Simon
Source:
The Science of the total environment 2019 pp. 133629
ISSN:
0048-9697
Subject:
total dissolved nitrogen,   etc   ; anthropogenic activities; biosphere; climate change; coastal water; economic development; environmental policy; eutrophication; excreta; land use; models; nitrogen; nutrients; pollution control; population growth; rivers; socioeconomics; water pollution; water quality; watersheds; Indus River;     Show all 21 Subjects
Abstract:
... The Indus River Basin faces severe water quality degradation because of nutrient enrichment from human activities. Excessive nutrients in tributaries are transported to the river mouth, causing coastal eutrophication. This situation may worsen in the future because of population growth, economic development, and climate change. This study aims at a better understanding of the magnitude and sources ...
DOI:
10.1016/j.scitotenv.2019.133629

13. Rainfall partitioning through a mixed cedar swamp and associated C and N fluxes in Southern Ontario, Canada

Author:
Duval, Tim P.
Source:
Hydrological processes 2019 v.33 no.11 pp. 1510-1524
ISSN:
0885-6087
Subject:
total dissolved nitrogen,   etc   ; Populus balsamifera; Thuja occidentalis; dissolved organic carbon; ecosystems; forest canopy; forest litter; growing season; hydrologic cycle; nitrogen; rain; solutes; stemflow; swamps; throughfall; trees; water interception; Ontario;     Show all 18 Subjects
Abstract:
... Partitioning of rainfall through a forest canopy into throughfall, stemflow, and canopy interception is a critical process in the water cycle, and the contact of precipitation with vegetated surfaces leads to increased delivery of solutes to the forest floor. This study investigates the rainfall partitioning over a growing season through a temperate, riparian, mixed coniferous‐deciduous cedar swam ...
DOI:
10.1002/hyp.13414

14. CO2 partial pressure and CO2 degassing in the Daning River of the upper Yangtze River, China

Author:
Ni, Maofei; Li, Siyue; Luo, Jiachen; Lu, Xixi
Source:
Journal of hydrology 2019 v.569 pp. 483-494
ISSN:
0022-1694
Subject:
total dissolved nitrogen,   etc   ; anthropogenic activities; carbon; carbon cycle; carbon dioxide; carbon dioxide production; deaeration; dry season; environmental factors; hydrology; liquid-air interface; rivers; streams; temporal variation; total dissolved phosphorus; uncertainty; water reservoirs; water temperature; wet season; China; Yangtze River;     Show all 21 Subjects
Abstract:
... Rivers and streams are important agents for global and regional carbon cycle, which represent a nonnegligible carbon source to the atmosphere. However, carbon dioxide (CO2) degassing via water-air interface from inland waters currently has a large uncertainty in estimation. Here we examined the CO2 partial pressure (pCO2) and CO2 degassing in the Daning River, a main tributary of the Yangtze in th ...
DOI:
10.1016/j.jhydrol.2018.12.017

15. Influences of land use metrics at multi-spatial scales on seasonal water quality: A case study of river systems in the Three Gorges Reservoir Area, China

Author:
Zhang, Jing; Li, Siyue; Dong, Ruozhu; Jiang, Changsheng; Ni, Maofei
Source:
Journal of cleaner production 2019 v.206 pp. 76-85
ISSN:
0959-6526
Subject:
total dissolved nitrogen,   etc   ; ammonium nitrogen; case studies; dry season; electrical conductivity; empirical models; hydrogen; land use planning; multivariate analysis; nitrate nitrogen; oxygen; pH; redox potential; rivers; total dissolved phosphorus; water quality; water temperature; watersheds; wet season; China;     Show all 20 Subjects
Abstract:
... The impact of land use metrics on watershed water quality is scale-dependent on a seasonal - spatial basis. Exploring the associations between land use metrics and riverine water quality provides useful information for effective land use planning for water quality security, whilst, these relationships remain poorly understood. 94 water samples covering entire tributaries in the Three Gorges Reserv ...
DOI:
10.1016/j.jclepro.2018.09.179

16. Epiphytic diatoms as indicators of ecological condition in New Zealand’s lowland wetlands

Author:
Kilroy, C.; Suren, A. M.; Wech, J. A.; Lambert, P.; Sorrell, B. K.
Source:
New Zealand journal of marine and freshwater research 2017 v.51 no.4 pp. 505-527
ISSN:
1175-8805
Subject:
total dissolved nitrogen,   etc   ; Bacillariophyceae; epiphytes; indicator species; pH; phosphorus; swamps; variance; water quality; New Zealand;     Show all 10 Subjects
Abstract:
... The condition of New Zealand’s remnant wetlands has been documented by landscape-scale assessments such as the Index of Ecological Integrity and Wetland Condition Index. We explored the potential for microscopic aquatic biota (epiphytic diatoms) to provide complementary information about wetland condition using data from 77 lowland sites (mainly palustrine swamps) with circumneutral pH. In the Sou ...
DOI:
10.1080/00288330.2017.1281318

17. Limitations on using CDOM as a proxy for DOC in temperate lakes

Author:
Griffin, Claire G.; Finlay, Jacques C.; Brezonik, Patrick L.; Olmanson, Leif; Hozalski, Raymond M.
Source:
Water research 2018 v.144 pp. 719-727
ISSN:
0043-1354
Subject:
total dissolved nitrogen,   etc   ; absorbance; absorptivity; carbon cycle; chlorophyll; color; dissolved organic matter; ecoregions; hardwood forests; lakes; landscapes; organic carbon; regression analysis; remote sensing; wetlands; United States;     Show all 16 Subjects
Abstract:
... Colored dissolved organic matter (CDOM) has been widely studied as part of efforts to improve understanding of the aquatic carbon cycle, by laboratory, in situ, and remote sensing methods. We studied ecoregion-scale differences in CDOM and dissolved organic carbon (DOC) to understand variability in organic matter composition and the use of CDOM as a proxy for DOC. Data from 299 lakes across the U. ...
DOI:
10.1016/j.watres.2018.08.007

18. Determination of total dissolved nitrogen in seawater by isotope dilution gas chromatography mass spectrometry following digestion with persulfate and derivatization with aqueous triethyloxonium A

Author:
Pagliano, Enea; Campanella, Beatrice; Shi, Lisa; Thibeault, Marie-Pier; Onor, Massimo; Crum, Steven; Melanson, Jeremy E.; Mester, Zoltán
Source:
Journal of chromatography 2018 v.1569 pp. 193-199
ISSN:
0021-9673
Subject:
total dissolved nitrogen,   etc   ; ammonium; derivatization; gas chromatography-mass spectrometry; headspace analysis; ionization; isotope dilution technique; nitrates; nitrites; nitrogen; nitrogen compounds; oxidation; seawater;     Show all 13 Subjects
Abstract:
... In this study, we propose a novel approach for the determination of total dissolved nitrogen (TDN) in seawater combining high-precision isotope dilution GC–MS with persulfate digestion. A 2 mL sample aliquot was digested with an alkaline solution of persulfate to convert nitrogen containing compounds to nitrate. Digested samples were spiked with ¹⁵NO3⁻ internal standard and treated with aqueous tr ...
DOI:
10.1016/j.chroma.2018.07.055

19. Influence of Biochar from Slow Pyrolysis on Dissolved Organic Carbon and Total Dissolved Nitrogen Levels of Urban Storm-Water Runoff

Author:
Mancinelli, Enrico; Baltrėnaitė, Edita; Baltrėnas, Pranas; Grubliauskas, Raimondas; Marčiulaitienė, Eglė; Passerini, Giorgio; Pranskevičius, Mantas
Source:
Water, air, and soil pollution 2018 v.229 no.8 pp. 245
ISSN:
0049-6979
Subject:
total dissolved nitrogen,   etc   ; Pinus; bark; basins; biochar; carbon sequestration; dissolved organic carbon; leaching; nitrogen; pollution load; pyrolysis; stormwater; temperature; urban areas;     Show all 14 Subjects
Abstract:
... Biochar as a filtering media has been attracted increasing attention for applications in urban storm-water runoff (USWR) management. Up-flow percolation tests were conducted with pine bark (PB) and biochars from PB (BCPB) for evaluating changes in dissolved organic carbon (DOC) and total dissolved nitrogen (TDN) concentrations varying with pyrolysis temperatures (i.e., 300, 450, and 700 °C) and ty ...
DOI:
10.1007/s11270-018-3896-9

20. Influence of humic substances on iron distribution in the East China Sea

Author:
Su, Han; Yang, Rujun; Li, Yan; Wang, Xuchen
Source:
Chemosphere 2018 v.204 pp. 450-462
ISSN:
0045-6535
Subject:
total dissolved nitrogen,   etc   ; chemical speciation; coastal water; estuaries; fulvic acids; hydrologic factors; iron; ligands; nutrient content; phosphates; salinity; summer; surface water; East China Sea; Yangtze River; Yellow Sea;     Show all 16 Subjects
Abstract:
... The influence of humic substances (specifically humic and fulvic acids, referred to as HS-HA and HS-FA) as well as other factors, such as major nutrient concentrations of total dissolved nitrogen (TDN), total dissolved phosphate (TDP) and hydrologic factors, on the distribution of total dissolved iron (DFe) and the chemical speciation of DFe was studied in the East China Sea (ECS) during a summer ...
DOI:
10.1016/j.chemosphere.2018.04.018