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1. Accelerated alkalinity regulation and long-term dry-wet aging durability for bauxite residue remediated with biomass pyrolysis

Author:
He, Zhexiang; Zhou, Jingju; Tang, Jianwei; Li, Chuxuan; Jiang, Jun; Chen, Wei; Zhu, Feng; Xue, Shengguo
Source:
Journal of environmental sciences (China) 2022 v.111 pp. 220-228
ISSN:
1001-0742
Subject:
biomass,   etc   ; alkalinity; bauxite; calcite; durability; fermentation; fluorescence; humic acids; pH stability; pyrolysis; remediation; soil formation; straw; China;     Show all 14 Subjects
Abstract:
... Biomass fermentation provides a potential route toward the ecological disposal for the bauxite residue (BR) with high alkalinity issues. However, how to accelerate the remediation of the alkaline problem with a long-term durability is still a big challenge. Herein, we investigated the acceleration of the decomposition of straw toward organic acid species via a pyrolysis strategy as well as the pH ...
DOI:
10.1016/j.jes.2021.03.021

2. Experimental evaluation of biodiversity response to dispersal barriers and patch primary producer biomass in Mediterranean streams

Author:
López-Rodríguez, Manuel Jesús; Paz Moreno, Isabel; Peralta-Maraver, Ignacio; Pérez-Martínez, Carmen; Tierno de Figueroa, José Manuel
Source:
Aquatic sciences 2021 v.83 no.1 pp. 1
ISSN:
1015-1621
Subject:
biomass,   etc   ; biodiversity; community structure;     Show all 3 Subjects
Abstract:
... Diversity at the local scale is determined by different, and often interacting factors. One factor that is suggested to be important in determining community structure is productivity, which is related to diversity. Though this relationship might depend on different factors, a hump-shaped, U-shaped or positive linear relationship seems to be frequent at the local scale. On the other hand, the conc ...
DOI:
10.1007/s00027-020-00757-5

3. Isolation of poly(3-hydroxybutyrate) from bacterial biomass using soap made of waste cooking oil

Author:
Pospisilova, Aneta; Novackova, Ivana; Prikryl, Radek
Source:
Bioresource technology 2021 v.326 pp. 124683
ISSN:
0960-8524
Subject:
bacterial biomass; biomass production,   etc   ; carbon; hydrochloric acid; soaps; technology; wastewater;     Show all 7 Subjects
Abstract:
... The aim of this work was to develop a soap-based method for the isolation of poly(3-hydroxybutyrate) from bacterial biomass. The method consisted of adding soap derived from waste cooking oil to a concentrated (25%) biomass suspension, heating and centrifugal separation. Purity above 95% could be achieved with soap:cell dry mass ratios at least 0.125 g/g, making the method comparable to other surf ...
DOI:
10.1016/j.biortech.2021.124683

4. Less is more: Negative relationship between biomass density and sea lice infestation in marine salmon farming

Author:
van Walraven, Nathalie; Fjørtoft, Helene Børretzen; Stene, Anne
Source:
Aquaculture 2021 v.539 pp. 736602
ISSN:
0044-8486
Subject:
biomass,   etc   ; ; Salmonidae; farmers; mortality; salmon;     Show all 6 Subjects
Abstract:
... The relationship between biomass density and sea lice infestation is of particular interest in marine salmonid aquaculture. Data from a commercial fish farmer with parallel production of both organic and conventional salmon at the same site made it possible to study aspects of this relationship in a field situation. The maximum allowed biomass density for organically produced salmon is 10 kg/m³ an ...
DOI:
10.1016/j.aquaculture.2021.736602

5. A method to avoid spatial overfitting in estimation of grassland above-ground biomass on the Tibetan Plateau

Author:
Yu, Hui; Wu, Yufeng; Niu, Liting; Chai, Yafan; Feng, Qisheng; Wang, Wei; Liang, Tiangang
Source:
Ecological indicators 2021 v.125 pp. 107450
ISSN:
1470-160X
Subject:
aboveground biomass,   etc   ; grasslands; models; China;     Show all 4 Subjects
Abstract:
... Accurate assessments of grassland above-ground biomass (AGB) are crucial for the sustainable utilization and protection of grassland resources and the eco-environment. In this study, a random forest (RF) model combined with the forward feature selection (FFS) and leave-location-out cross-validation (LLO-CV) methods was trained to predict the dry weight (DW) of grassland AGB based on multiple facto ...
DOI:
10.1016/j.ecolind.2021.107450

6. Examining the Influence of Recycled Concrete Aggregate on the Hardened Properties of Self-compacting Concrete

Author:
Mo, Kim Hung; Ling, Tung-Chai; Cheng, Quan
Source:
Waste and biomass valorization 2021 v.12 no.2 pp. 1133-1141
ISSN:
1877-2641
Subject:
biomass,   etc   ; concrete; wastes; water uptake;     Show all 4 Subjects
Abstract:
... Along with the growing development of countries around the world, there are huge amounts of construction and demolition works which produce large volumes of recycled concrete aggregate (RCA) and these are increasing over the past few decades. One of the more practical ways to manage the RCA wastes is through re-using them as aggregate to produce concrete. In this paper, 5–10 mm crushed RCA was use ...
DOI:
10.1007/s12649-020-01045-x

7. Introduction to the Special Issue: “Advance in Recovery and Application of Bioactive Compounds from Seafood”

Author:
Jacobsen, Charlotte; Holdt, Susan L.
Source:
Foods 2021 v.10 no.2
ISSN:
2304-8158
Subject:
biomass,   etc   ; bioeconomics; industry; macroalgae; seafoods;     Show all 5 Subjects
Abstract:
... Due to increased focus on a circular bioeconomy, full utilization of marine biomass, including side streams from the seafood processing industry as well as utilization of biomass that has not been used to a great extent in the Western world (e.g., seaweed), is receiving increased attention from both academia and industry. [...] ...
DOI:
10.3390/foods10020266

8. Performance of DOuble Circulation Anaerobic Sludge bed reactor: Biomass self-balance

Author:
Chen, Wenda; Yu, Tao; Xu, Dongdong; Li, Wenji; Pan, Chao; Li, Yiyu; Zeng, Zhuo; Kang, Da; Shan, Shengdao; Zheng, Ping
Source:
Bioresource technology 2021 v.320 pp. 124407
ISSN:
0960-8524
Subject:
biomass,   etc   ; Zoogloea; biotechnology; calcification; sludge;     Show all 5 Subjects
Abstract:
... The calcification of Anaerobic Granular Sludge is a serious problem in the application of anaerobic methanization biotechnology. Regular replacement of calcified sludge with exogenous sludge is an effective method, but it is costly and troublesome. A new DOuble Circulation Anaerobic Sludge bed reactor was developed for the enhanced production of endogenous sludge to self-balance the discharge of c ...
DOI:
10.1016/j.biortech.2020.124407

9. Impacts of underground competition and establishment on growth and root architecture of breadfruit (Artocarpus altilis) and māmaki (Pipturus albidus)

Author:
Bendes, Maxwell Steinbock; Lincoln, Noa Kekuewa
Source:
Rhizosphere 2021 v.18 pp. 100337
ISSN:
2452-2198
Subject:
aboveground biomass; belowground biomass; biomass production,   etc   ; Artocarpus altilis; agroecosystems; breadfruits; environmental quality; plastics; rhizosphere;     Show all 9 Subjects
Abstract:
... Replacing conventional monocultures with more diverse agroecosystems can positively impact environmental quality, but their adoption is limited, in part, due to inadequate understanding of how these systems operate regarding belowground competition. We examined how root competition between breadfruit (Artocarpus altilis) and māmaki (Pipturus albidus) affected aboveground performance. Our 2 × 3 fac ...
DOI:
10.1016/j.rhisph.2021.100337

10. Approach to modeling protozoa grazing on the basis of the current state of knowledge

Author:
Janiak, Kamil; Zięba, Bartosz; Szetela, Ryszard; Muszyński-Huhajło, Mateusz; Miodoński, Stanisław; Jurga, Anna; Trusz, Agnieszka
Source:
Ecological modelling 2021 v.447 pp. 109503
ISSN:
0304-3800
Subject:
biomass,   etc   ; Protozoa; activated sludge; bioaugmentation; flocculation; oxygen;     Show all 6 Subjects
Abstract:
... Protozoa are significant components of activated sludge which purify the effluent of free swimming bacteria as well as trigger floc formation. In addition, their presence is often used as an indicator of process quality. In classical models, the impact of protozoa on biomass is implicitly included in the bacteria decay rates, which in most cases gives a sufficient level of detail. However, modelin ...
DOI:
10.1016/j.ecolmodel.2021.109503

11. Alkali-Activated Cements from Urban, Mining and Agro-Industrial Waste: State-of-the-art and Opportunities

Author:
Rivera, Jhonathan; Castro, Fernando; Fernández-Jiménez, Ana; Cristelo, Nuno
Source:
Waste and biomass valorization 2021 v.12 no.5 pp. 2665-2683
ISSN:
1877-2641
Subject:
biomass,   etc   ; agricultural wastes; cement; construction industry;     Show all 4 Subjects
Abstract:
... Facing the beginning of the third decade of the twenty-first century, humanity faces an environmental threat that can pose some serious concerns regarding the life on the planet as we know it. The industrial sector is probably the most significant contributor to this concerning scenario, with the construction industry (CI) playing a leading role. Massive efforts have thus been directed to the rese ...
DOI:
10.1007/s12649-020-01071-9

12. Characterization of Two Sludges from a Pyrometallurgical Copper Smelting Complex for Designing a Se and Pb Recovery Proposal

Author:
Paz-Gómez, D. C.; Pérez-Moreno, S. M.; Ruiz-Oria, I.; Ríos, G.; Bolívar, J. P.
Source:
Waste and biomass valorization 2021 v.12 no.5 pp. 2739-2755
ISSN:
1877-2641
Subject:
biomass,   etc   ; anglesite; dust; particle size; selenium; sludge;     Show all 6 Subjects
Abstract:
... Gas scrubbing sludge (SS) and fine dust of converters (SC) are wastes generated in the off-gas cleaning system of smelting and converting processes. Both wastes are considered hazardous materials due to their high metal contents and leaching characteristics. The main purpose of this study was to gain essential knowledge on the recovery of valuable elements contained in these wastes. Thus, an exhau ...
DOI:
10.1007/s12649-020-01197-w

13. Determination of 18 bisphenols in aqueous and biomass phase of high rate algal ponds: Development, validation and application

Author:
Škufca, David; Kovačič, Ana; Griessler Bulc, Tjaša; Heath, Ester
Source:
Chemosphere 2021 v.271 pp. 129786
ISSN:
0045-6535
Subject:
biomass,   etc   ; algae; uncertainty; wastewater; wastewater treatment;     Show all 5 Subjects
Abstract:
... High rate algal ponds (HRAP) are an alternative to conventional wastewater treatment with the potential for wastewater and biomass reuse. In this study, we report the development and validation of methods for analysing 18 bisphenols (BPs) in the aqueous and biomass phase of HRAP. For aqueous phase samples, obtained LLOQ ranged from 10 to 30 ng/L, and recoveries from 78% to 106%. The relative expan ...
DOI:
10.1016/j.chemosphere.2021.129786

14. Pellets from Biogas Digestates: A Substantial Source of N2O Emissions

Author:
Petrova, Ioana Petrova; Ruser, Reiner; Guzman-Bustamante, Ivan
Source:
Waste and biomass valorization 2021 v.12 no.5 pp. 2433-2444
ISSN:
1877-2641
Subject:
biomass,   etc   ; biogas; carbon dioxide; denitrification; soil; wastes;     Show all 6 Subjects
Abstract:
... The field application of pellets from biogas residues resulted in high N₂O emissions which could not yet be parametrized through soil drivers. Therefore, the aim of this study was to determine potential N₂O production from pellets themselves. N₂O and CO₂ release from the pure pellet body (in form of intact, crushed or finely ground pellets produced from biogas digestates) were measured during the ...
DOI:
10.1007/s12649-020-01190-3

15. Transition to the bioeconomy – Analysis and scenarios for selected niches

Author:
Wydra, Sven; Hüsing, Bärbel; Köhler, Jonathan; Schwarz, Alexander; Schirrmeister, Elna; Voglhuber-Slavinsky, Ariane
Source:
Journal of cleaner production 2021 v.294 pp. 126092
ISSN:
0959-6526
Subject:
biomass,   etc   ; aviation; bioeconomics; biofuels; biolubricants; bioplastics; governance;     Show all 7 Subjects
Abstract:
... Bio-based innovations do not evolve independently from each other, but are interrelated and may enjoy synergies, but also compete for resources (i.e. biomass, skills). Therefore, we explore possible transition pathways that distinct bio-based niches could follow during a joint transformation process. We apply the Multi-Level-Perspective’s transition pathways to the four distinct niches of (i) biop ...
DOI:
10.1016/j.jclepro.2021.126092

16. Assessment of exploited fish species in the Lake Edward System, East Africa

Author:
Musinguzi, Laban; Bassa, Samuel; Natugonza, Vianny; Van Steenberge, Maarten; Okello, William; Snoeks, Jos; Froese, Rainer
Source:
Journal of applied ichthyology 2021 v.37 no.2 pp. 216-226
ISSN:
0175-8659
Subject:
biomass,   etc   ; fish; ichthyology; lakes; livelihood; Eastern Africa;     Show all 6 Subjects
Abstract:
... The unknown status of inland fish stocks hinders their sustainable management. Therefore, increasing stock status information is important for sustainable inland fisheries. Fisheries reference points were estimated for five exploited fish species (11 stocks) in the Lake Edward system, East Africa, which is one of the most productive inland water systems. The aim was to ascertain the status of the ...
DOI:
10.1111/jai.14161

17. Wood Modification as a Tool to Understand Moisture in Wood

Author:
Thybring, Emil Engelund; Fredriksson, Maria
Source:
Forests 2021 v.12 no.3
ISSN:
1999-4907
Subject:
biomass,   etc   ; anisotropy; dimensional stability; wood; wood chemistry;     Show all 5 Subjects
Abstract:
... Moisture plays a central role in the performance of wood products because it affects important material properties such as the resistance to decomposition, the mechanical properties, and the dimensions. To improve wood performance, a wide range of wood modification techniques that alter the wood chemistry in various ways have been described in the literature. Typically, these modifications aim to ...
DOI:
10.3390/f12030372

18. Inherent Metal Elements in Biomass Pyrolysis: A Review

Author:
Giudicianni, Paola; Gargiulo, Valentina; Grottola, Corinna Maria; Alfè, Michela; Ferreiro, Ana Isabel; Mendes, Miguel Abreu Almeida; Fagnano, Massimo; Ragucci, Raffaele
Source:
Energy & fuels 2021 v.35 no.7 pp. 5407-5478
ISSN:
1520-5029
Subject:
biomass,   etc   ; energy; feedstocks; hyperaccumulators; pyrolysis; toxicity; viability;     Show all 7 Subjects
Abstract:
... One of the main drawbacks of using biomass as pyrolysis feedstock consists of the huge variability of the different biomass resources which undermines the viability of downstream processes. Inherent inorganic elements greatly contribute to enhance the compositional variability issues due to their catalytic effect (especially alkali and alkaline earth metals (AAEMs)) and the technical problems aris ...
DOI:
10.1021/acs.energyfuels.0c04046

19. Short-Term Response of Chlorophyll a Concentration Due to Intense Wind and Freshwater Peak Episodes in Estuaries: The Case of Fangar Bay (Ebro Delta)

Author:
F-Pedrera Balsells, Marta; Grifoll, Manel; Fernández-Tejedor, Margarita; Espino, Manuel
Source:
Water 2021 v.13 no.5
ISSN:
2073-4441
Subject:
biomass,   etc   ; chlorophyll; estuaries; freshwater; hydrodynamics; wind speed;     Show all 6 Subjects
Abstract:
... Estuaries and coastal bays are areas of large spatio-temporal variability in physical and biological variables due to environmental factors such as local wind, light availability, freshwater inputs or tides. This study focuses on the effect of strong wind events and freshwater peaks on short-term chlorophyll a (Chl a) concentration distribution in the small-scale and microtidal, Fangar Bay (Ebro D ...
DOI:
10.3390/w13050701

20. Properties and Assessment of Applications of Red Mud (Bauxite Residue): Current Status and Research Needs

Author:
Reddy, Peddireddy Sreekanth; Reddy, Narala Gangadhara; Serjun, Vesna Zalar; Mohanty, Bijayananda; Das, Sarat Kumar; Reddy, Krishna R.; Rao, Bendadi Hanumantha
Source:
Waste and biomass valorization 2021 v.12 no.3 pp. 1185-1217
ISSN:
1877-2641
Subject:
biomass,   etc   ; alkalinity; aluminum; bauxite; industry; pH;     Show all 6 Subjects
Abstract:
... In order to conserve natural resources and prevent waste generation, effective utilization of industrial wastes and/or by-products for beneficial engineering applications becomes inevitable. In order to accomplish this, extensive research studies, exploring properties and new applications of waste materials in a sustainable and environmentally friendly manner, have been initiated worldwide. Red mu ...
DOI:
10.1007/s12649-020-01089-z