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1. A collaborative strategy for enhanced anaerobic co-digestion of food waste and waste activated sludge by using zero valent iron and ferrous sulfide

Author:
Dejin Zhang; Yidan Wei; Mingjiang Zhang; Shuyue Wu; Lixiang Zhou
Source:
Bioresource technology 2022 v.347 pp. 126420
ISSN:
0960-8524
Subject:
activated sludge; anaerobic digestion; biochemical pathways; food waste; hydrolysis; iron; methane production; methanogens; municipal solid waste; sulfides; toxicity; waste treatment; wastewater
Abstract:
... The application of sulfidated zero-valent iron as an alternative used in coupled anaerobic systems to improve methane production is usually restricted by its high production costs and toxic gasses and wastewater generation. In this study, a collaborative strategy for coupling zero-valent iron (ZVI) and ferrous sulfide (FeS) together into anaerobic systems was used to evaluate the enhancement of me ...
DOI:
10.1016/j.biortech.2021.126420

2. A critical evaluation of conventional kinetic and isotherm modeling for adsorptive removal of hexavalent chromium and methylene blue by natural rubber sludge-derived activated carbon and commercial activated carbon

Author:
Uttara Mahapatra; Ajay Kumar Manna; Abhijit Chatterjee
Source:
Bioresource technology 2022 v.343 pp. 126135
ISSN:
0960-8524
Subject:
activated carbon; adsorbents; adsorption; batch systems; chromium; mass transfer; methylene blue; models; rubber; sorption isotherms; wastes
Abstract:
... The adsorptive removal of Cr(VI) and methylene blue (MB) was studied in a batch reactor using activated carbon (RAC), prepared from natural rubber waste, along with the commercial activated carbon (CAC). Maximum uptake of Cr(VI) and MB by the RAC was 21 and 30 mg g⁻¹, respectively, whereas the corresponding uptake by CAC was 145 and 224 mg g⁻¹. The kinetics of adsorption, however, was found to be ...
DOI:
10.1016/j.biortech.2021.126135

3. A critical review of process parameters influencing the fate of antibiotic resistance genes in the anaerobic digestion of organic waste

Author:
Nervana Haffiez; Tae Hyun Chung; Basem S. Zakaria; Manjila Shahidi; Symon Mezbahuddin; Faisal I. Hai; Bipro Ranjan Dhar
Source:
Bioresource technology 2022 v.354 pp. 127189
ISSN:
0960-8524
Subject:
anaerobic digestion; antibiotic resistance; feedstocks; humans; land application; metabolism; organic wastes; public health
Abstract:
... The overuse and inappropriate disposal of antibiotics raised severe public health risks worldwide. Specifically, the incomplete antibiotics metabolism in human and animal bodies contributes to the significant release of antibiotics into the natural ecosystems and the proliferation of antibiotic-resistant bacteria carrying antibiotic-resistant genes. Moreover, the organic feedstocks used for anaero ...
DOI:
10.1016/j.biortech.2022.127189

4. A novel biotechnology based on periphytic biofilms with N-acyl-homoserine-lactones stimulation and lanthanum loading for phosphorus recovery

Author:
Ying Xu; Philip G. Kerr; Jan Dolfing; Bruce E. Rittmann; Yonghong Wu
Source:
Bioresource technology 2022 v.347 pp. 126421
ISSN:
0960-8524
Subject:
adsorption; biofilm; biotechnology; lanthanum; ligands; phosphorus; polymers; wastewater
Abstract:
... This study presents an approach for developing periphytic biofilm with N-acyl-homoserine-lactones (AHLs) stimulation and lanthanum (La, a rare earth element) loading, to achieve highly efficient and stable phosphorus (P) recovery from wastewater. AHLs stimulated biofilm growth and formation, also improved stable P entrapment by enhancing extracellular polymeric substance (EPS) production and optim ...
DOI:
10.1016/j.biortech.2021.126421

5. A novel flat-panel photobioreactor for simultaneous production of lutein and carbon sequestration by Chlorella sorokiniana TH01

Author:
Cam Van T. Do; Cuc T. Dinh; Mai T. Dang; Thuan Dang Tran; Truong Giang Le
Source:
Bioresource technology 2022 v.345 pp. 126552
ISSN:
0960-8524
Subject:
Chlorella sorokiniana; aeration; biomass production; carbon; carbon dioxide; carbon sequestration; climatic factors; light intensity; lutein; microalgae; photobioreactors
Abstract:
... Carbon dioxide is the major cause of global warming. However, it is a carbon source for phototrophic production of chemicals from microalgae. In this work, a novel flat-panel photobioreactor (FPP) was used for maximization of biomass and lutein production and CO₂ fixation by a lutein-rich C. sorokiniana TH01. CO₂ concentration, light intensity and aeration rate were optimized as 5%, 150 µmol/m²/s ...
DOI:
10.1016/j.biortech.2021.126552

6. A novel stable nitritation process: Treating sludge by alternating free nitrous acid/heat shock

Author:
Chengju Liu; Yanyan Wang; Guanghui Chen; Deshuang Yu; Xincheng Zhang; Xueping Wang; Zhihao Tang; Ao Xu
Source:
Bioresource technology 2022 v.347 pp. 126753
ISSN:
0960-8524
Subject:
ammonium; batch systems; exposure duration; heat stress; microbial communities; nitrification; nitrites; nitrous acid; regression analysis; sludge
Abstract:
... The feasibility of stable nitritation of sludge alternately treated by free nitrous acid (FNA) and heat shock in a sequencing batch reactor (SBR) was investigated in this study. The linear regression method was used to determine the optimal treatment conditions. Results revealed that an FNA concentration of 2.20 mg HNO₂-N/L, exposure time of 24 h, and treatment ratio of 20% could inhibit nitrite o ...
DOI:
10.1016/j.biortech.2022.126753

7. A novel two-stage heterotrophic cultivation for starch-to-protein switch to efficiently enhance protein content of Chlorella sp. MBFJNU-17

Author:
Xuehua Xiao; Youcai Zhou; Zhibo Liang; Rongzhao Lin; Mingmin Zheng; Bilian Chen; Yongjin He
Source:
Bioresource technology 2022 v.344 pp. 126187
ISSN:
0960-8524
Subject:
Chlorella; absorption; biomass; biosynthesis; carbon metabolism; fermenters; glucose; microalgae; protein content; starch; technology; urea
Abstract:
... This work aimed to firstly establish an efficient and novel two-stage cultivation process to produce microalgal biomass rich in protein using a heterotrophic Chlorella sp. MBFJNU-17 strain. In the first-stage cultivation, to reduce the glucose and urea utilization, microalga achieved a high biomass at 40 g/L glucose and 1 g/L urea; meantime, the expression from starch biosynthesis genes of microal ...
DOI:
10.1016/j.biortech.2021.126187

8. A perspective on the combination of alkali pre-treatment with bioaugmentation to improve biogas production from lignocellulose biomass

Author:
Kwame O. Donkor; Lalitha D. Gottumukkala; Richen Lin; Jerry D. Murphy
Source:
Bioresource technology 2022 v.351 pp. 126950
ISSN:
0960-8524
Subject:
alkali treatment; anaerobic digestion; bioaugmentation; biodegradability; biofertilizers; biogas; biomass; bioprocessing; circular economy; digestibility; energy; feedstocks; gas production (biological); greenhouse gases; lignocellulose; methane; methane production
Abstract:
... Anaerobic digestion (AD) is a bioprocess technology that integrates into circular economy systems, which produce renewable energy and biofertilizer whilst reducing greenhouse gas emissions. However, improvements in biogas production efficiency are needed in dealing with lignocellulosic biomass. The state-of-the-art of AD technology is discussed, with emphasis on feedstock digestibility and operati ...
DOI:
10.1016/j.biortech.2022.126950

9. A review on anaerobic digestion with focus on the role of biomass co-digestion, modelling and optimisation on biogas production and enhancement

Author:
Tawanda Kunatsa; Xiaohua Xia
Source:
Bioresource technology 2022 v.344 pp. 126311
ISSN:
0960-8524
Subject:
anaerobic digestion; biogas; biomass; carbon nitrogen ratio; feedstocks; gas production (biological); hybridization; pH; temperature
Abstract:
... The status, recent trends and future perspectives in modelling and optimisation of anaerobic co-digestion is investigated. Areas that can be focused on and those which need further research towards enhancing biogas production are pointed out. Co-digestion, modelling and optimisation of anaerobic digestion as well as techno-economic aspects are reviewed in this paper. It was noted that co-digestion ...
DOI:
10.1016/j.biortech.2021.126311

10. A review on biogas upgrading in anaerobic digestion systems treating organic solids and wastewaters via biogas recirculation

Author:
Tian Yuan; Zhenya Zhang; Zhongfang Lei; Kazuya Shimizu; Duu-Jong Lee
Source:
Bioresource technology 2022 v.344 pp. 126412
ISSN:
0960-8524
Subject:
anaerobic digestion; biogas; cost effectiveness; methane; sustainable technology; wastewater
Abstract:
... Biogas upgrading is an essential process for efficient and safe utilization of biogas produced from anaerobic digestion (AD), a cost-effective and environmentally friendly technology for bioenergy recovery from organic wastes. Biogas recirculation in AD reactors has been recently reported as a cost-effective and promising method to enhance methane content in biogas. This review aimed to summarize ...
DOI:
10.1016/j.biortech.2021.126412

11. A review on mycelial pellets as biological carriers: Wastewater treatment and recovery for resource and energy

Author:
Lixin Li; Taojie Liang; Mengjie Zhao; Ying Lv; Zhiwei Song; Tao Sheng; Fang Ma
Source:
Bioresource technology 2022 v.355 pp. 127200
ISSN:
0960-8524
Subject:
biocompatibility; biodiesel; energy; energy recovery; microalgae; mycelium; porosity; wastewater; wastewater treatment
Abstract:
... Mycelial pellets, a new environment friendly biological carrier, have received wide attention from researchers due to porosity, stability and unique biocompatibility. In this article, the theoretical basis and mechanism of mycelial pellets as a biological carrier were analyzed from the properties of mycelial pellets and the interaction between mycelial pellets and other microorganisms. This articl ...
DOI:
10.1016/j.biortech.2022.127200

12. A review on physico-chemical delignification as a pretreatment of lignocellulosic biomass for enhanced bioconversion

Author:
Sumitha Banu Jamaldheen; Mayur B. Kurade; Bikram Basak; Chang Geun Yoo; Kyeong Keun Oh; Byong-Hun Jeon; Tae Hyun Kim
Source:
Bioresource technology 2022 v.346 pp. 126591
ISSN:
0960-8524
Subject:
biomass; bioprocessing; biorefining; biotransformation; delignification; enzymes; hemicellulose; lignin; lignocellulose; polymerization; saccharification
Abstract:
... Effective pretreatment of lignocellulosic biomass (LCB) is one of the most important steps in biorefinery, ensuring the quality and commercial viability of the overall bioprocess. Lignin recalcitrance in LCB is a major bottleneck in biological conversion as the polymerization of lignin with hemicellulose hinders enzyme accessibility and further bioconversion to fuels and chemicals. Therefore, ther ...
DOI:
10.1016/j.biortech.2021.126591

13. A review on the treatment of dyes in printing and dyeing wastewater by plant biomass carbon

Author:
Zhongchuang Liu; Tabrez Alam Khan; Md. Azharul Islam; Unsha Tabrez
Source:
Bioresource technology 2022 v.354 pp. 127168
ISSN:
0960-8524
Subject:
adsorption; alkalinity; biodegradability; carbon; environmental protection; phytomass; wastewater; water quality
Abstract:
... Printing and dyeing wastewater (PDW) has characteristics of large amount of water, elevated content of residual dyes, poor biodegradability, high alkalinity and large change of water quality, making its treatment difficult. Development of efficient and economic PDW treatment technology has gained considerable interest in the field of environmental protection. Use of plant biomass carbon (PBC) for ...
DOI:
10.1016/j.biortech.2022.127168

14. Acetate-based production of itaconic acid with Corynebacterium glutamicum using an integrated pH-coupled feeding control

Author:
Manuel Merkel; Dirk Kiefer; Marc Schmollack; Bastian Blombach; Lars Lilge; Marius Henkel; Rudolf Hausmann
Source:
Bioresource technology 2022 v.351 pp. 126994
ISSN:
0960-8524
Subject:
Aspergillus terreus; Corynebacterium glutamicum; acetates; biobased products; biotechnology; carbon; fungi; genes; glucose; isocitrate dehydrogenase; itaconic acid; titration
Abstract:
... To date, most bio-based products of industrial biotechnology stem from sugar-based carbon sources originating from food and feed competing resources. Exemplary for bioproducts converted from glucose, the potential C5 platform chemical itaconic acid is presently produced by the filamentous fungus Aspergillus terreus. Here, an engineered strain of the industrial platform organism Corynebacterium glu ...
DOI:
10.1016/j.biortech.2022.126994

15. Achieving simultaneous nitrification, denitrification, and phosphorus removal in pilot-scale flow-through biofilm reactor with low dissolved oxygen concentrations: Performance and mechanisms

Author:
Chao Wang; Qining Lin; Yuanyuan Yao; Ronghua Xu; Xueshen Wu; Fangang Meng
Source:
Bioresource technology 2022 v.358 pp. 127373
ISSN:
0960-8524
Subject:
ammonium; biofilm; chemical oxygen demand; denitrification; dissolved oxygen; ecological differentiation; keystone species; municipal wastewater; nitrification; phosphorus; sludge; total nitrogen; total phosphorus; wastewater treatment
Abstract:
... In this pilot-scale study, a flow-through biofilm reactor (FTBR) was investigated for municipal wastewater treatment. The removal efficiencies for ammonium, total nitrogen, total phosphorus, and chemical oxygen demand were 87.2 ± 17.9%, 61.1 ± 13.9%, 83.5 ± 11.9%, and 92.6 ± 1.7%, respectively, at low dissolved oxygen concentrations (averaged at 0.59 mg/L), indicating the feasibility and robustnes ...
DOI:
10.1016/j.biortech.2022.127373

16. Added-value biomolecules’ production from cocoa pod husks: A review

Author:
Luciana Porto de Souza Vandenberghe; Kim Kley Valladares-Diestra; Gustavo Amaro Bittencourt; Ariane Fátima Murawski de Mello; Zulma Sarmiento Vásquez; Priscilla Zwiercheczewski de Oliveira; Gilberto Vinícius de Melo Pereira; Carlos Ricardo Soccol
Source:
Bioresource technology 2022 v.344 pp. 126252
ISSN:
0960-8524
Subject:
bioenergy; biomass; cocoa beans; feedstocks; lignocellulose; technology; value added
Abstract:
... Cocoa beans are produced through on-farm processing where residual biomass is discarded, including cocoa pod husks (CPH), cocoa bean shells and cocoa sweatings. CPH represents about 80% of these residues that are generated during the initial cocoa bean processing steps and their disposal occupies large areas, causing social and environmental concerns. In the last decades, the lignocellulosic compo ...
DOI:
10.1016/j.biortech.2021.126252

17. Adding an appropriate proportion of phosphogypsum ensured rice husk and urea composting to promote the compost as substrate utilization

Author:
Bing Zhao; Yuyun Wang; Liting Ma; Yongjie Li; Yaqing Deng; Xuejiao Chen; Zhi Xu
Source:
Bioresource technology 2022 v.344 pp. 126301
ISSN:
0960-8524
Subject:
composts; fermentation; nitrogen; phosphogypsum; poultry manure; rice hulls; urea
Abstract:
... To explore the effectiveness of urea replacing poultry manure as the nitrogen source in the rice husk composting system, and to promote the utilization of compost products as substrates, 0%, 10%, 20%, and 30% of phosphogypsum were added respectively in the urea composting system, and were compared with the chicken manure composting (RCP0). Finally, the fermentation and maturation of RCP0 were achi ...
DOI:
10.1016/j.biortech.2021.126301

18. Addition of mature compost improves the composting of green waste

Author:
Wan Yang; Lu Zhang
Source:
Bioresource technology 2022 v.350 pp. 126927
ISSN:
0960-8524
Subject:
Fourier transform infrared spectroscopy; bulk density; composts; electrical conductivity; green waste; inoculum; organic matter; pH; phytotoxicity; porosity; technology; temperature
Abstract:
... Composting is an environmentally friendly and effective way to dispose of green waste (GW), but traditional composting of GW is slow and results in the loss of many nutrients and a poor-quality compost product. In this study, mature compost (MC), which may function as an inexpensive and readily available microbial inoculant, was added to GW at 15, 20, 25, and 30% (w/w, dry weight basis) (treatment ...
DOI:
10.1016/j.biortech.2022.126927

19. Advancements in detection and removal of antibiotic resistance genes in sludge digestion: A state-of-art review

Author:
Zehao Zhang; Xuan Li; Huan Liu; Arash Zamyadi; Wenshan Guo; Haiting Wen; Li Gao; Long D. Nghiem; Qilin Wang
Source:
Bioresource technology 2022 v.344 pp. 126197
ISSN:
0960-8524
Subject:
aerobic digestion; alkali treatment; antibiotic resistance; digestion; ferric chloride; iron; people; sludge; thermal hydrolysis; wastewater treatment
Abstract:
... Sludge from wastewater treatment plants can act as a repository and crucial environmental provider of antibiotic resistance genes (ARGs). Over the past few years, people’s knowledge regarding the occurrence and removal of ARGs in sludge has broadened remarkably with advancements in molecular biological techniques. Anaerobic and aerobic digestion were found to effectively achieve sludge reduction a ...
DOI:
10.1016/j.biortech.2021.126197

20. Advances in pretreatment of lignocellulosic biomass for bioenergy production: Challenges and perspectives

Author:
Lei Zhao; Zhong-Fang Sun; Cheng-Cheng Zhang; Jun Nan; Nan-Qi Ren; Duu-Jong Lee; Chuan Chen
Source:
Bioresource technology 2022 v.343 pp. 126123
ISSN:
0960-8524
Subject:
bioethanol; biogas; biohydrogen; biomass; biotransformation; cellulose; climate change; energy; feedstocks; lignocellulose; technology
Abstract:
... As a clean and renewable energy, bioenergy is one of the most promising alternatives to fossil fuels. Lignocellulose possesses great potential for bioenergy production, but the recalcitrant and heterogeneous structure limits its application. Pretreatment technology offers an effective solution to fractionate the main components of the lignocellulose and uncover the available cellulose. The obtaine ...
DOI:
10.1016/j.biortech.2021.126123