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1. 16S rRNA genes- and metagenome-based confirmation of syntrophic butyrate-oxidizing methanogenesis enriched in high butyrate loading

Author:
Xianghui Meng; Qin Cao; Yong Sun; Siyuan Huang; Xiaofeng Liu; Dong Li
Source:
Bioresource technology 2022 v.345 pp. 126483
ISSN:
0960-8524
Subject:
Methanosarcina; Synergistaceae; Syntrophomonas; bacteria; butyric acid; gas production (biological); metagenomics; methane production; methanogens; microbial communities; oxidation; technology
Abstract:
... The understanding and enrichment of consortia formed by syntrophic butyrate-oxidizing bacteria and methanogens in the complex environment are crucial for effectively degrading butyrate and preventing acid inhibition. In this study, the better butyrate-tolerated and highly efficient microbial consortia were domesticated and enriched through adding butyric acid ranging from 0.2 to 4.4 g/(L·d). The v ...
DOI:
10.1016/j.biortech.2021.126483

2. A biorefinery approach for pectin extraction and second-generation bioethanol production from cocoa pod husk

Author:
Kim Kley Valladares-Diestra; Luciana Porto de Souza Vandenberghe; Carlos Ricardo Soccol
Source:
Bioresource technology 2022 v.346 pp. 126635
ISSN:
0960-8524
Subject:
Candida tropicalis; Saccharomyces cerevisiae; bioenergy industry; bioethanol; biorefining; citric acid; cocoa hulls; enzymatic hydrolysis; ethanol production; glucans; liquids; pectins; xylooligosaccharides
Abstract:
... A biorefinery approach was applied for pectin extraction, xylooligosaccharides’ (XOs) and bioethanol production from cocoa pod husk (CPH) using citric acid-assisted hydrothermal pretreatment. Under optimal conditions at 120° C, 10 min and 2% w.v⁻¹ of citric acid a high pectin recovery (19.5%) with high content of uronic acids (41.9%) was obtained. In addition, the liquid fraction presented a XOs c ...
DOI:
10.1016/j.biortech.2021.126635

3. 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

4. A combination of deep eutectic solvent and ethanol pretreatment for synergistic delignification and enhanced enzymatic hydrolysis for biorefinary process

Author:
Lan Yao; Pingping Cui; Xiong Chen; Chang Geun Yoo; Qianting Liu; Xianzhi Meng; Long Xiong; Arthur J. Ragauskas; Haitao Yang
Source:
Bioresource technology 2022 v.350 pp. 126885
ISSN:
0960-8524
Subject:
Broussonetia papyrifera; antioxidants; biomass; cellulose; corn stover; delignification; digestibility; enzymatic hydrolysis; ethanol; glucose; lignin; solubilization; solvents
Abstract:
... A novel pretreatment system containing deep eutectic solvents and ethanol (DES-E) for synergistic carbohydrate conversion and delignification was reported in this study. The DES-E pretreatment resulted in an enhanced glucose yield compared to individual DES and ethanol pretreatment for the three tested biomass, including Broussonetia papyrifera, corn stover and pine. To further explore the deligni ...
DOI:
10.1016/j.biortech.2022.126885

5. A comparative life cycle assessment of different pyrolysis-pretreatment pathways of wood biomass for levoglucosan production

Author:
Rajarshi Bhar; Bikash R. Tiwari; Ajit K. Sarmah; Satinder K. Brar; Brajesh K. Dubey
Source:
Bioresource technology 2022 v.356 pp. 127305
ISSN:
0960-8524
Subject:
biomass; carcinogenicity; electric energy consumption; hot water treatment; humans; torrefaction; wood; wood residues
Abstract:
... In order to identify the most environmental-friendly pretreatment for pyrolsis of wood residue to levoglucosan (LG), for the first time a comparative life cycle assessment (LCA) was carried out for hot water treatment (HWT), torrefaction, acid pretreatment (AP) and salt pretreatment (SP) pathways. Since LG production can facilitate both resource recovery (RR) and wood residue handling (WRH), two d ...
DOI:
10.1016/j.biortech.2022.127305

6. A comparative study on simultaneous recovery of phosphorus and alginate-like exopolymers from bacterial and algal-bacterial aerobic granular sludges: Effects of organic loading rate

Author:
Xingyu Chen; Jixiang Wang; Qian Wang; Zejiao Li; Tian Yuan; Zhongfang Lei; Zhenya Zhang; Kazuya Shimizu; Duu-Jong Lee
Source:
Bioresource technology 2022 v.357 pp. 127343
ISSN:
0960-8524
Subject:
bioavailability; comparative study; phosphorus; sludge; wastewater treatment
Abstract:
... The effects of organic loading rate (OLR) on simultaneous phosphorus (P) and alginate-like exopolymers (ALE) recovery from bacterial aerobic granular sludge (AGS) and algal-bacterial AGS were examined and compared during 70 days’ operation. With the increase of OLR (0.6–1.2 g COD/(L·day)), both AGS showed good settleability and granular strength with P bioavailability > 92% (Stage III). The modera ...
DOI:
10.1016/j.biortech.2022.127343

7. A comparison between exogenous carriers enhanced aerobic granulation under low organic loading in the aspect of sludge characteristics, extracellular polymeric substances and microbial communities

Author:
Zhe Liu; Xuhua Zhang; Shumin Zhang; Hao Qi; Yiwen Hou; Min Gao; Jiaxuan Wang; Aining Zhang; Yiping Chen; Yongjun Liu
Source:
Bioresource technology 2022 v.346 pp. 126567
ISSN:
0960-8524
Subject:
Zoogloea; aluminum sulfate; biomass; denitrification; diatomaceous earth; ferric sulfate; metabolism; microbial communities; polymers; secretion; sludge; technology
Abstract:
... In this study, polymeric ferric sulfate (PFS), aluminum sulfate (AS) and diatomite were added to enhance the aerobic granulation under low organic loading rate (OLR) of 0.6 kg·COD/(m³·d), and their effects of aerobic granule formation, extracellular polymeric substances (EPS) secretion and microbial community were investigated. The results showed that adding carriers could facilitated the growth o ...
DOI:
10.1016/j.biortech.2021.126567

8. A comprehensive root cause analysis of anammox bioreactor performance decline

Author:
Victory Fiifi Dsane; Haejun Jeon; Yuri Choi; Younggyun Choi
Source:
Bioresource technology 2022 v.349 pp. 126895
ISSN:
0960-8524
Subject:
ammonia; anaerobic ammonium oxidation; batch systems; bioreactors; carbon dioxide; energy; nitrogen; nitrous acid; pH; polymers
Abstract:
... The cultivation of anaerobic ammonia oxidizing bacteria (anammox) has gained enormous awareness over the last few decades. Although numerous studies focus massively on successfully growing these anammox to different enrichment environments, in reality, the failure rates are somewhat comparable to the reported success rates. This study combines a variety of measurement techniques to observe and mon ...
DOI:
10.1016/j.biortech.2022.126895

9. A continuous-flow non-aerated microalgal-bacterial granular sludge process for aquaculture wastewater treatment under natural day-night conditions

Author:
Bin Ji; Siqi Fan; Yu Liu
Source:
Bioresource technology 2022 v.350 pp. 126914
ISSN:
0960-8524
Subject:
Chlorella; Leptolyngbya; ammonia; aquaculture; dissolved oxygen; metagenomics; microalgae; nitrates; nitrite nitrogen; nitrites; phosphorus; sludge; wastewater treatment; weather
Abstract:
... This study developed a continuous-flow non-aerated microalgal-bacterial granular tubular reactor for aquaculture wastewater treatment under natural day-night conditions. Results showed that daytime was favorable for ammonia removal while nighttime for nitrate removal. Over 99% of nitrite-N could be removed over the day-night cycles at a hydraulic retention time of 6 h. However, the phosphorus remo ...
DOI:
10.1016/j.biortech.2022.126914

10. 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

11. A critical review for advances on industrialization of immobilized cell Bioreactors: Economic evaluation on cellulose hydrolysis for PHB production

Author:
Konstantina Boura; Agapi Dima; Poonam S. Nigam; Vassilios Panagopoulos; Maria Kanellaki; Athanasios Koutinas
Source:
Bioresource technology 2022 v.349 pp. 126757
ISSN:
0960-8524
Subject:
bioreactors; cellulose; economic evaluation; fermentation; flocculants; hydrolysis; immobilized cells; industrialization; nanobiotechnology; polyhydroxybutyrate; process design; temperature
Abstract:
... Advances such as cell-on-cell immobilization, multi-stage fixed bed tower (MFBT) bioreactor, promotional effect on fermentation, extremely low temperature fermentation, freeze dried immobilized cells in two-layer fermentation, non-engineered cell factories, and those of recent papers are demonstrated. Studies for possible industrialization of ICB, considering production capacity, low temperatures ...
DOI:
10.1016/j.biortech.2022.126757

12. 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

13. A critical review on microbe-electrode interactions towards heavy metal ion detection using microbial fuel cell technology

Author:
Md Tabish Noori; Dayakar Thatikayala; Deepak Pant; Booki Min
Source:
Bioresource technology 2022 v.347 pp. 126589
ISSN:
0960-8524
Subject:
bioelectricity; electrodes; heavy metals; metabolism; microbial fuel cells; research and development; toxicity
Abstract:
... Implicit interaction of electroactive microbes with solid electrodes is an interesting phenomenon in nature, which supported development of bioelectrochemical systems (BESs), especially the microbial fuel cell (MFCs) for valorization of low-value waste streams into bioelectricity. Intriguingly, the metabolism of interacted microbes with electrode is affected by the microenvironment at electrodes, ...
DOI:
10.1016/j.biortech.2021.126589

14. A mainstream anammox fixed-film membrane bioreactor with novel sandwich-structured carriers for fast start-up, effective sludge retention and membrane fouling mitigation

Author:
Meng Zhang; Jun Gu; Siyu Wang; Yu Liu
Source:
Bioresource technology 2022 v.347 pp. 126370
ISSN:
0960-8524
Subject:
anaerobic ammonium oxidation; membrane bioreactors; municipal wastewater; nitrogen; sludge
Abstract:
... Novel sandwich-structured carriers were developed for fast immobilizing anammox sludge, with which a fixed-film membrane bioreactor was further established for treating municipal wastewater. Results showed that fast start-up of the fixed-film reactor with anammox bacteria could be achieved without lag phase, indicated by the respective nitrogen removal efficiency and rate of 70.58 ± 0.66% and 0.12 ...
DOI:
10.1016/j.biortech.2021.126370

15. A model of an integrated hydrothermal liquefaction, gasification and Fischer-Tropsch synthesis process for converting lignocellulosic forest residues into hydrocarbons

Author:
C. Stigsson; E. Furusjö; P. Börjesson
Source:
Bioresource technology 2022 v.353 pp. 126070
ISSN:
0960-8524
Subject:
European Union; Fischer-Tropsch reaction; biofuels; carbon; energy; energy policy; evaporation; feedstocks; forests; fossil fuels; gasification; greenhouse gases; hydrothermal liquefaction; life cycle assessment; lignocellulose; models; Sweden
Abstract:
... The aim of this work was to develop a model of an integrated biomass-to-liquid process, consisting of hydrothermal liquefaction, evaporation, gasification and Fischer-Tropsch synthesis, using lignocellulosic forest residues as feedstock, to produce hydrocarbons suitable for upgrading to drop-in biofuels. The energy, mass and carbon efficiencies obtained were 40%, 20% and 32%, respectively. The Fis ...
DOI:
10.1016/j.biortech.2021.126070

16. A multifaceted screening of applied voltages for electro-assisted anaerobic digestion of blackwater: Significance of temperature, hydrolysis/acidogenesis, electrode corrosion, and energy efficiencies

Author:
Qi Huang; Yang Liu; Bipro Ranjan Dhar
Source:
Bioresource technology 2022 v.360 pp. 127533
ISSN:
0960-8524
Subject:
Bacteroidales; Clostridium; ambient temperature; anaerobic digesters; anaerobic digestion; chemical oxygen demand; corrosion; electric potential difference; electrodes; electrolysis; hydrolysis; metabolism; methane production; pH
Abstract:
... A microbial electrolysis cell-assisted anaerobic digester (MEC-AD) was operated with vacuum toilet blackwater at different applied voltages (0–1.6 V) at room temperature (R₂₀). A parallel MEC-AD was operated at 35 °C (R₃₅) to provide a kinetics index at mesophilic temperature. Both reactors failed at 1.6 V due to the alkaline pH created by anodic corrosion. In R₂₀, the best performance was observe ...
DOI:
10.1016/j.biortech.2022.127533

17. A negative-carbon footprint process with mixed biomass feedstock maximizes conversion efficiency, product value and CO2 mitigation

Author:
Peng Jiang; Guanhan Zhao; Li Liu; Hao Zhang; Liwen Mu; Xiaohua Lu; Jiahua Zhu
Source:
Bioresource technology 2022 v.351 pp. 127004
ISSN:
0960-8524
Subject:
activated carbon; bagasse; biofuels; biomass; carbon dioxide; energy efficiency; feedstocks; flue gas; life cycle assessment; mushrooms; technology; value added; viability
Abstract:
... The great variety of biomass species offers unique features for synergistic optimization of process outcomes. In this work, spent mushroom substrate and bagasse with optimize ratio were processed to produce value-added products of activated carbon and biofuel yet achieve negative CO₂ emission. By integrating experimental characterization, this work uses process simulation, techno-economic analysis ...
DOI:
10.1016/j.biortech.2022.127004

18. A novel anammox aggregate nourished sustainably internal heterotrophic nitrate removal pathway with endogenous carbon source

Author:
Jinyuan Ma; Kaijun Wang; Chuan Shi; Yue Liu; Cheng Yu; Kuo Fang; Xiangyun Fu; Quan Yuan; Yuan Zhou; Hui Gong
Source:
Bioresource technology 2022 v.346 pp. 126525
ISSN:
0960-8524
Subject:
ammonia; anaerobic ammonium oxidation; carbon; cost effectiveness; denitrifying microorganisms; fermentation; nitrates; nitrites; nitrogen; polysaccharides; total nitrogen
Abstract:
... Anaerobic ammonium oxidation (anammox) is a cost-effective nitrogen removal pathway but instinctively generated nitrate limits its application. A novel anammox aggregate reduced the production of nitrate significantly with efficient removal of ammonia and nitrite in this work. The results demonstrated that the internal heterotrophic nitrate removal (IHNAR) pathway exists stably at inner of anammox ...
DOI:
10.1016/j.biortech.2021.126525

19. A novel and efficient strategy mediated with calcium carbonate-rich sources to remove ammonium sulfate from rare earth wastewater by heterotrophic Chlorella species

Author:
Youcai Zhou; Yongjin He; Xuehua Xiao; Zhibo Liang; Jingxuan Dai; Mingzi Wang; Bilian Chen
Source:
Bioresource technology 2022 v.343 pp. 125994
ISSN:
0960-8524
Subject:
Chlorella; ammonium sulfate; calcium; cost effectiveness; egg shell; fermenters; microalgae; oyster shells; wastewater; wastewater treatment
Abstract:
... This work was the first time to establish the desired approach with two heterotrophic Chlorella species for ammonium sulfate (AS)-rich rare earth elements (REEs) wastewater treatment by heterotrophic cultivation. The results showed that these two Chlorella species treated by 6 g/L CaCO₃ performed the best ability to remove NH₄⁺-N and SO₄²⁻ of REEs wastewater. Moreover, the established process perf ...
DOI:
10.1016/j.biortech.2021.125994

20. 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

21. A novel cascaded fractional fuzzy approach for control of fermentation process

Author:
Vijay Mohan; Nikhil Pachauri; Bharti Panjwani; Dattaguru V. Kamath
Source:
Bioresource technology 2022 v.357 pp. 127377
ISSN:
0960-8524
Subject:
algorithms; bioreactors; ethanol; fermentation; temperature
Abstract:
... In this work, a cascaded control strategy based on fractional-order fuzzy PD/PI (FOFPD/PI) is proposed for temperature control of the bioreactor. The FOFPI is used to control the ethanol concentration in the inner loop, while the FOFPD is used for temperature control of the bioreactor in the outer loop. The integer order fuzzy PD/PI (IOFPD/PI), 2DOF FOPID, 2DOF PID, and PID are also designed for c ...
DOI:
10.1016/j.biortech.2022.127377

22. A novel control strategy to strengthen nitrogen removal from domestic wastewater through eliminating nitrite oxidizing bacteria in a plug-flow process

Author:
Yanhui Chen; Yawen Sun; Jianhua Zhang; Jianwei Li; Yongzhen Peng
Source:
Bioresource technology 2022 v.350 pp. 126856
ISSN:
0960-8524
Subject:
aeration; denitrification; municipal wastewater; nitrification; nitrites; nitrogen; technology
Abstract:
... In this study, intermittent aeration strategy was investigated in a plug-flow reactor on real municipal wastewater. Over 200 days of operation, the total inorganic nitrogen (TIN) removal efficiency of 72.43 ± 7.56% was achieved with a total aerobic hydraulic retention time in the range 2.4–3.0 h under a low C/N ratio of 3.19. The batch tests showed that the activity of nitrite oxidizing bacteria ( ...
DOI:
10.1016/j.biortech.2022.126856

23. 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

24. A novel organophosphate hydrolase from Arthrobacter sp. HM01: Characterization and applications

Author:
Himanshu Mali; Chandni Shah; Darshan M. Rudakiya; Darshan H. Patel; Ujjval Trivedi; R.B. Subramanian
Source:
Bioresource technology 2022 v.349 pp. 126870
ISSN:
0960-8524
Subject:
Arthrobacter; aryldialkylphosphatase; bioremediation; catalytic activity; genes; metabolites; organophosphorus compounds; site-directed mutagenesis; technology
Abstract:
... Bioremediation systems coupled to efficient microbial enzymes have emerged as an attractive approach for the in-situ removal of hazardous organophosphates (OPs) pesticides from the polluted environment. However, the role of engineered enzymes in OPs-degradation is rarely studied. In this study, the potential OPs-hydrolase (opdH) gene (Arthrobacter sp. HM01) was isolated, cloned, expressed, and pur ...
DOI:
10.1016/j.biortech.2022.126870

25. A novel process of salt tolerance partial denitrification and anammox (ST-PDA) for treating saline wastewater

Author:
Ao Xu; Deshuang Yu; Yanling Qiu; Guanghui Chen; Yuan Tian; Yanyan Wang
Source:
Bioresource technology 2022 v.345 pp. 126472
ISSN:
0960-8524
Subject:
Thauera; anaerobic ammonium oxidation; control methods; denitrification; industrial wastewater; models; nitrogen; salinity; salt tolerance; sludge; species richness; technology; total nitrogen
Abstract:
... In the study, the salt-tolerant partial denitrification and Anammox (ST-PDA) process was established, meanwhile, the feasibility of salinity inhibition model as the boundary control method and the subsequent operation performance were studied. Study indicated that the performance of salt-tolerant PD sludge was the optimum under the 10 g·L⁻¹ salinity, and AnAOB also maintained high activity at the ...
DOI:
10.1016/j.biortech.2021.126472

26. A novel simultaneous partial nitritation, denitratation and anammox (SPNDA) process in sequencing batch reactor for advanced nitrogen removal from ammonium and nitrate wastewater

Author:
Xingxing Zhang; Peng Wu; Lezhong Xu; Liping Ma
Source:
Bioresource technology 2022 v.343 pp. 126105
ISSN:
0960-8524
Subject:
Nitrosomonas; Thauera; ammonia; ammonium; anaerobic ammonium oxidation; batch systems; denitrification; dissolved oxygen; nitrates; nitrogen; total nitrogen; wastewater
Abstract:
... This study presented a novel simultaneous partial nitritation (PN), denitratation and anammox (SPNDA) process for treating ammonium and nitrate wastewater. Results indicated that SPNDA could achieve a great total nitrogen (TN) removal of 97.6 ± 0.5%, leading to effluent TN concentration of only 3.4 mg/L. Mass balance indicated that nitrogen removal rates via anammox, simultaneous nitrification and ...
DOI:
10.1016/j.biortech.2021.126105

27. 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

28. A novel strategy to simultaneously enhance bioaccessible lipids and antioxidants in hetero/mixotrophic Chlorella vulgaris as functional ingredient

Author:
Greta Canelli; Sabrina Tevere; Luc Jaquenod; Fabiola Dionisi; Zhen Rohfritsch; Christoph J. Bolten; Lukas Neutsch; Alexander Mathys
Source:
Bioresource technology 2022 v.347 pp. 126744
ISSN:
0960-8524
Subject:
Chlorella vulgaris; alpha-tocopherol; antioxidants; bioactive compounds; bioavailability; bioprocessing; biorefining; carotenoids; electric field; homogenization; ingredients; microalgae; nitrogen content; phenolic compounds
Abstract:
... Microalgae are a promising source of polyunsaturated fatty acids as well as bioactive antioxidant compounds such as carotenoids, phenolics and tocopherols. However, the accumulation of these biomolecules is often promoted by conflicting growth conditions. In this study, a phased bioprocessing strategy was developed to simultaneously enhance the lipid and antioxidant amounts by tailoring nitrogen c ...
DOI:
10.1016/j.biortech.2022.126744

29. 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

30. A particle scale micro-CT approach for 3D in-situ visualizing the Pb (II) adsorption in different crop residue-derived chars

Author:
Hehu Zhang; Yanfei Li; Ruyue Xie; Ying Zhu; Suan Shi; Zengling Yang; Lujia Han
Source:
Bioresource technology 2022 v.344 pp. 126269
ISSN:
0960-8524
Subject:
adsorption; algorithms; biochar; coconuts; micro-computed tomography; rice hulls; technology; wheat
Abstract:
... It is crucial to develop a new characterization method to provide insight into the complex adsorption mechanism of crop residue-derived char. This study established a novel 3D in-situ visualization method for qualitative and semi-quantitative characterizing Pb (II) adsorption profiles in crop residue-derived char particles. First, coconut shell activated carbon, rice husk biochar, and wheat biocha ...
DOI:
10.1016/j.biortech.2021.126269

31. 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

32. A radial basis function neural network based multi-objective optimization for simultaneously enhanced nitrogen and phosphorus removal in a full-scale integrated surface flow treatment wetland–pond system

Author:
Yiping Li; Linda A. Nuamah; Yashuai Pu; Haikuo Zhang; Eyram Norgbey; Amechi S. Nwankwegu; Patrick Banahene; Robert Bofah
Source:
Bioresource technology 2022 v.344 pp. 126336
ISSN:
0960-8524
Subject:
models; nitrogen; overland flow; phosphorus; technology; total nitrogen; total phosphorus; China
Abstract:
... In this study, a radial basis function neural network (RBFNN) model was developed and implemented in a multi-objective optimization procedure to determine the optimal hydraulic loading rate (HLR), hydraulic retention time (HRT), and mass loading rates (MLR) for enhanced removal of nitrogen and phosphorus by an integrated surface flow treatment wetland–pond system treating drinking source water in ...
DOI:
10.1016/j.biortech.2021.126336

33. 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

34. 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

35. A review on biological recycling in agricultural waste-based biohydrogen production: Recent developments

Author:
Yaping Zheng; Quanguo Zhang; Zhiping Zhang; Yanyan Jing; Jianjun Hu; Chao He; Chaoyang Lu
Source:
Bioresource technology 2022 v.347 pp. 126595
ISSN:
0960-8524
Subject:
agricultural wastes; bioreactors; clean energy; energy balance; energy content; fermentation; hydrogen; hydrogen production; production technology
Abstract:
... Hydrogen has become a research highlight by virtue of its clean energy production technology and high energy content. The technology of biohydrogen production from biological waste via fermentation has lower costs, provides environment-friendly methods regarding energy balance, and creates a pathway for sustainable utilization of massive agricultural waste. However, biohydrogen production is gener ...
DOI:
10.1016/j.biortech.2021.126595

36. A review on global perspectives of sustainable development in bioenergy generation

Author:
Prangan Duarah; Dibyajyoti Haldar; Anil Kumar Patel; Cheng-Di Dong; Reeta Rani Singhania; Mihir Kumar Purkait
Source:
Bioresource technology 2022 v.348 pp. 126791
ISSN:
0960-8524
Subject:
alternative fuels; biofuels; energy; feedstocks; issues and policy; markets; sustainable development; technology
Abstract:
... Over the last few decades, the globe has much relied on fossil fuels; however, environmental concerns forced the World to look at biofuel as an alternative for stable economic development. Biofuel also facilitates national energy security maintenance and reduces environmental complications. The present study is focused on an in-depth analysis of bioenergy policy measures undertaken by various fede ...
DOI:
10.1016/j.biortech.2022.126791

37. 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

38. 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

39. A review on recent developments in hydrodynamic cavitation and advanced oxidative processes for pretreatment of lignocellulosic materials

Author:
C.A. Prado; F.A.F. Antunes; T.M. Rocha; S. Sánchez-Muñoz; F.G. Barbosa; R. Terán-Hilares; M.M. Cruz-Santos; G.L. Arruda; S.S. da Silva; J.C. Santos
Source:
Bioresource technology 2022 v.345 pp. 126458
ISSN:
0960-8524
Subject:
bioeconomics; biofuels; biomass; energy; hydrodynamics; hydrolysis; lignocellulose; processing time
Abstract:
... Environmental problems due to utilization of fossil-derived materials for energy and chemical generation has prompted the use of renewable alternative sources, such as lignocellulose biomass (LB). Indeed, the production of biomolecules and biofuels from LB is among the most important current research topics aiming to development a sustainable bioeconomy. Yet, the industrial use of LB is limited by ...
DOI:
10.1016/j.biortech.2021.126458

40. A review on the diverse interactions between microalgae and nanomaterials: Growth variation, photosynthetic performance and toxicity

Author:
Zhi Lin Lau; Sze Shin Low; Ejikeme Raphael Ezeigwe; Kit Wayne Chew; Wai Siong Chai; Amit Bhatnagar; Yee Jiun Yap; Pau Loke Show
Source:
Bioresource technology 2022 v.351 pp. 127048
ISSN:
0960-8524
Subject:
ferric oxide; growth retardation; microalgae; photosynthesis; titanium dioxide; toxicity
Abstract:
... Vast improvements in nanotechnology have led to the wide usage of nanomaterials (NMs) in daily products. This study reviews the interactions between NMs and microalgae in terms of impacts on growth and photosynthetic efficiency, and their toxicity on microalgae. All types of NMs such as carbon-based NMs (CNMs), metal oxide-based NMs (MONMs) and noble metal-based NMs (NMNMs) improve microalgal grow ...
DOI:
10.1016/j.biortech.2022.127048

41. 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

42. A state-of-the-art review on algae pyrolysis for bioenergy and biochar production

Author:
Jiacheng Sun; Omid Norouzi; Ondřej Mašek
Source:
Bioresource technology 2022 v.346 pp. 126258
ISSN:
0960-8524
Subject:
algae; biochar; biofuels; biomass; capacitance; catalysts; coproducts; cost effectiveness; electrochemical capacitors; energy; feedstocks; fertilizers; ion exchange capacity; lignocellulose; pyrolysis; soil; soil amendments; wastewater treatment
Abstract:
... Algae, as a feedstock with minimum land footprint, is considered a promising biomass for sustainable fuels, chemicals, and materials. Unlike lignocellulosic biomass, algae consist mainly of lipids, carbohydrates, and proteins. This review focusses on the bio-oil and biochar co-products of algae-pyrolysis and presents the current state-of-the-art in the pyrolysis technologies and key applications o ...
DOI:
10.1016/j.biortech.2021.126258

43. A strategy for promoting carbon flux into fatty acid and astaxanthin biosynthesis by inhibiting the alternative oxidase respiratory pathway in Haematococcus pluvialis

Author:
Litao Zhang; Chunhui Zhang; Ran Xu; Wenjie Yu; Jianguo Liu
Source:
Bioresource technology 2022 v.344 pp. 126275
ISSN:
0960-8524
Subject:
Haematococcus pluvialis; acetyl coenzyme A; aeration; astaxanthin; biosynthesis; carbon; fatty acids; nitrogen; oxidoreductases; phosphorus; pyruvic acid; reactive oxygen species; technology
Abstract:
... In the present study, the mechanisms for facilitating fatty acid and astaxanthin biosynthesis-related processes by inhibiting the alternative oxidase (AOX) respiratory pathway in Haematococcus pluvialis was investigated. The restriction of the AOX pathway induced the accumulation of reactive oxygen species, NAD(P)H and its substrates (acetyl-CoA, pyruvate and glyceraldehy-3-phosphate), which are r ...
DOI:
10.1016/j.biortech.2021.126275

44. A structure–activity understanding of the interaction between lignin and various cellulase domains

Author:
Xiaoxue Zhao; Caoxing Huang; Wenqian Lin; Bin Bian; Chenhuan Lai; Zhe Ling; Qiang Yong
Source:
Bioresource technology 2022 v.351 pp. 127042
ISSN:
0960-8524
Subject:
adsorption; bamboos; carbohydrate binding; endo-1,4-beta-glucanase; fluorescence emission spectroscopy; hydrophobicity; lignin; molecular weight; polyacrylamide gel electrophoresis; structure-activity relationships; technology; thermodynamics; van der Waals forces
Abstract:
... To elucidate the structure–activity relationship between lignin and various cellulase domains, four lignin fractions with specific structures and molecular weight were prepared from bamboo kraft lignin (BKL) and used to investigate the adsorption mechanism between different cellulase domains by fluorescence spectroscopy and SDS-PAGE. Endo-cellulase 6B exhibited a higher affinity to BKL fractions t ...
DOI:
10.1016/j.biortech.2022.127042

45. Accelerating anaerobic digestion process with novel single chamber microbial electrochemical systems with baffle

Author:
Huong Thi Thu Nguyen; Md Tabish Noori; Booki Min
Source:
Bioresource technology 2022 v.359 pp. 127474
ISSN:
0960-8524
Subject:
Firmicutes; anaerobic digestion; biofilm; biogas; cathodes; electrochemistry; energy efficiency; methane production; microbial communities
Abstract:
... A newly designed microbial electrochemical system (MES) with the addition of a baffle between the electrodes was integrated with the anaerobic digestion (AD) process for biogas upgradation. Novel MES configuration attained an increased methane production rate of 292.6 mL/L∙d and methane yield of 0.36 ± 0.006 LCH4/gCOD, which were higher than the values (185.3 mL/L∙d and 0.33 ± 0.009 LCH4/gCOD) fro ...
DOI:
10.1016/j.biortech.2022.127474

46. Acceleration of lactate-utilizing pathway for enhancing biohydrogen production by magnetite supplementation in Clostridium butyricum

Author:
Do-Hyung Kim; Jeong-Jun Yoon; Sang-Hyoun Kim; Jeong-Hoon Park
Source:
Bioresource technology 2022 v.359 pp. 127448
ISSN:
0960-8524
Subject:
Clostridium butyricum; RNA; catalysts; fermentation; genes; hydrogen production; lactic acid; magnetite; pyruvate synthase
Abstract:
... A conductive metal compound can be used as a catalyst for enhancing hydrogen production by dark fermentation. This study aimed to identify mechanisms of enhanced hydrogen production by magnetite supplementation. Experiments were performed with lactate and/or magnetite supplementation to confirm that the lactate-utilizing pathway is the key cause of enhanced hydrogen production. Also, ribonucleic a ...
DOI:
10.1016/j.biortech.2022.127448

47. Acceleration of start-up of moving bed biofilm reactor at low temperature by adding specialized quorum sensing bacteria

Author:
Hui-min Fu; Jinfeng Wang; Hongqiang Ren; Lili Ding
Source:
Bioresource technology 2022 v.358 pp. 127249
ISSN:
0960-8524
Subject:
Aeromonas; Arcobacter; Dechloromonas; Flavobacterium; Micropruina; Nakamurella; Pseudomonas; Zoogloea; adhesion; biofilm; chemical oxygen demand; high-throughput nucleotide sequencing; polysaccharides; species richness; temperature
Abstract:
... This study aims to accelerate biofilm formation and operational performance of moving bed biofilm reactor (MBBR) at 5 ℃ by adding specialized Quorum Sensing bacteria (sphingomonas rubra BH3ᵀ). Results showed that bio augmented MBBR (RS) achieved a higher chemical oxygen demand and NH₄⁺-N removal rate (93% and 75%), which in accordance with its increased biofilm thickness, higher biofilm activity, ...
DOI:
10.1016/j.biortech.2022.127249

48. 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

49. Achieving partial denitrification using organic matter in brewery wastewater as carbon source

Author:
Tian Xie; Zhijie Zeng; Lingling Li
Source:
Bioresource technology 2022 v.349 pp. 126849
ISSN:
0960-8524
Subject:
Thauera; biological treatment; carbon; cost effectiveness; denitrification; organic matter; sewage treatment; sludge; viability; wastewater
Abstract:
... To find a cost-effective carbon source for partial denitrification (PD), brewery wastewater was utilized to test the viability of initiating PD. The Sbᵣₑ (sludge from the biological treatment tank of Tsingtao Brewery Plant sewage treatment station) and Sₗₐb (sludge from laboratory) were fed with brewery wastewater at CODCᵣ/NO₃⁻-N (C/N) ratios of 8.0–10.0 and 5.0 for 95 days at 25 ± 1 °C, respectiv ...
DOI:
10.1016/j.biortech.2022.126849

50. 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