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1. Correction to: Effluent composition prediction of a two-stage anaerobic digestion process: machine learning and stoichiometry techniques

Author:
Alejo, Luz; Atkinson, John; Arriagada, Constanza; Guzmán-Fierro, Víctor; Roeckel, Marlene
Source:
Environmental science and pollution research international 2019 v.26 no.5 pp. 5234
ISSN:
0944-1344
Subject:
anaerobic digesters,   etc   ; anaerobic digestion; artificial intelligence; prediction; stoichiometry;     Show all 5 Subjects
Abstract:
... The original publication of this paper contains a mistake. Unfortunately, an author was inadvertently missed out, Constanza Arriagada had participated in the operation of the anaerobic digesters cited in the work and now as a PhD student, she is involved in the production of other publication ...
DOI:
10.1007/s11356-018-4048-x

2. Efficient treatment of traditional Chinese pharmaceutical wastewater using a pilot-scale spiral symmetry stream anaerobic bioreactor compared with internal circulation reactor

Author:
Chen, Xiaoguang; Wang, Yu; Wang, Zhiyao; Liu, Shuai
Source:
Chemosphere 2019 v.228 pp. 437-443
ISSN:
0045-6535
Subject:
anaerobic digesters,   etc   ; ambient temperature; biomass; chemical oxygen demand; sludge; streams; wastewater;     Show all 7 Subjects
Abstract:
... It is a technical barrier to efficiently treat traditional Chinese pharmaceutical (TCP) wastewater, due to its high chemical oxygen demanding (COD) concentration (>5000 mg/L). This study proposed and employed a spiral symmetry stream anaerobic bioreactor (SSSAB) to treat TCP wastewater. Results showed that a pilot-scale SSSAB (150 L) could achieve COD removal efficiency of 94.8% and volumetric rem ...
DOI:
10.1016/j.chemosphere.2019.04.173

3. Low-cost, Arduino-based, portable device for measurement of methane composition in biogas

Author:
Yang, Shunchang; Liu, Yikan; Wu, Na; Zhang, Yingxiu; Svoronos, Spyros; Pullammanappallil, Pratap
Source:
Renewable energy 2019 v.138 pp. 224-229
ISSN:
0960-1481
Subject:
anaerobic digesters,   etc   ; biogas; gas chromatography; glass; humidity; methane; portable equipment; temperature; thermal conductivity;     Show all 9 Subjects
Abstract:
... An inexpensive, portable device to measure methane content of biogas samples was constructed. The central component of the device was an MQ-4 methane sensor. This sensor, along with humidity, temperature and pressure sensors, was enclosed in an airtight glass jar and interfaced with a programmable Arduino Uno clone for data logging and operation. The sensor was able to detect methane within the ja ...
DOI:
10.1016/j.renene.2019.01.083

4. Investigating energy and environmental issues of agro-biogas derived energy systems: A comprehensive review of Life Cycle Assessments

Author:
Ingrao, Carlo; Bacenetti, Jacopo; Adamczyk, Janusz; Ferrante, Valentina; Messineo, Antonio; Huisingh, Donald
Source:
Renewable energy 2019 v.136 pp. 296-307
ISSN:
0960-1481
Subject:
anaerobic digesters,   etc   ; biogas; energy; environmental assessment; feedstocks; life cycle assessment; natural gas;     Show all 7 Subjects
Abstract:
... This literature review was built upon recently published articles on Life Cycle Assessments (LCAs) of agricultural biogas plants, to: enhance understanding of the relevant literature in the field and the related question by readers worldwide. It was designed to highlight methodological issues and impact indicators, which best represent this research field; consequently, they should be considered i ...
DOI:
10.1016/j.renene.2019.01.023

5. Microbial community structure in full scale anaerobic mono-and co-digesters treating food waste and animal waste

Author:
Koo, Taewoan; Yulisa, Arma; Hwang, Seokhwan
Source:
Bioresource technology 2019 v.282 pp. 439-446
ISSN:
0960-8524
Subject:
anaerobic digesters,   etc   ; Methanoculleus; animal wastes; community structure; dominant species; food waste; methanogens; microbial communities; sodium;     Show all 9 Subjects
Abstract:
... Five mesophilic full-scale anaerobic digesters treating food waste (FW-digester), animal waste (AW-digester), and co-substrate of food waste and animal waste (CO-digesters) were monitored identify bacterial and archaeal communities and to quantify the effect of substrate characteristics on them, and to identify ‘core’ microorganism. The substrate characteristics and microbial communities of the FW ...
DOI:
10.1016/j.biortech.2019.03.050

6. Physic Nut Seed Cake Methanation and Chemical Characterization of Anaerobic Bio-digested Substrate

Author:
Gavilanes, Freddy Zambrano; Guedes, Carmen Luísa Barbosa; Silva, Helder Rodrigues; Nomura, Rafael Guayato; Andrade, Diva Souza
Source:
Waste and biomass valorization 2019 v.10 no.5 pp. 1267-1276
ISSN:
1877-2641
Subject:
anaerobic digesters,   etc   ; anaerobic digestion; biofertilizers; biogas; biomass; energy; inoculum; jatropha cake; methane; methane production; pig manure;     Show all 11 Subjects
Abstract:
... Methane (CH₄) generation from the anaerobic digestion of vegetal biomass is an important clean alternative form of energy. In this context, the response of the physic nut seed cake to microbial inoculum for biogas and CH₄ production was examined in lab-scale biogas anaerobic digesters. Two experiments were carried out with physic nut seed cake stored over 6 and 18 months. The treatments assayed in ...
DOI:
10.1007/s12649-017-0148-y

7. Removal kinetics of sulfamethazine and its transformation products formed during treatment using a horizontal flow-anaerobic immobilized biomass bioreactor

Author:
Oliveira, Cristiane Arruda; Penteado, Eduardo D.; Tomita, Inês N.; Santos-Neto, Álvaro J.; Zaiat, Marcelo; Silva, Bianca Ferreira da; Lima Gomes, Paulo Clairmont F.
Source:
Journal of hazardous materials 2019 v.365 pp. 34-43
ISSN:
0304-3894
Subject:
anaerobic digesters,   etc   ; antibiotics; aquatic environment; biomass; chemical oxygen demand; sewage; sulfamethazine; veterinary medicine; wastewater; wastewater treatment;     Show all 10 Subjects
Abstract:
... Sulfamethazine (SMZ) is an antibiotic from sulfonamides class widely used in veterinary medicine and reported in wastewater and sewage. Thus, it is essential to study technologies to reduce SMZ present in the aquatic environment. Anaerobic bioreactors are a low-cost technology applied for wastewater treatment. The objective of this paper is to study kinetics parameters related to SMZ removal using ...
DOI:
10.1016/j.jhazmat.2018.10.077

8. Performance and microbial community of an expanded granular sludge bed reactor in the treatment of cephalosporin wastewater

Author:
Li, Zhonghua; Hu, Yuying; Liu, Chuanyang; Shen, Jian; Wu, Jing; Li, Huaizhi; Wang, Kaijun; Zuo, Jiane
Source:
Bioresource technology 2019 v.275 pp. 94-100
ISSN:
0960-8524
Subject:
anaerobic digesters,   etc   ; Methanobacterium; anaerobic treatment; cephalosporins; chemical oxygen demand; methane; microbial communities; municipal wastewater; sludge;     Show all 9 Subjects
Abstract:
... In this study, the anaerobic treatment and microbial characteristics of high-concentration cephalosporin wastewater were studied. A pilot-scale expanded granular sludge bed (EGSB) reactor was designed to treat cephalosporin wastewater, whose diameter, height and effective volume were 0.5 m, 4.9 m, 0.92 m3, respectively. With mixed high-concentration cephalosporin wastewater and municipal wastewate ...
DOI:
10.1016/j.biortech.2018.12.003

9. Characterising the two-phase flow and mixing performance in a gas-mixed anaerobic digester: Importance for scaled-up applications

Author:
Wei, Peng; Mudde, Robert F.; Uijttewaal, Wim; Spanjers, Henri; van Lier, Jules B.; de Kreuk, Merle
Source:
Water research 2019 v.149 pp. 86-97
ISSN:
0043-1354
Subject:
anaerobic digesters,   etc   ; hydrodynamics; laminar flow; liquids; mixing; models; prediction; rheology; uncertainty analysis;     Show all 9 Subjects
Abstract:
... This study aimed to characterise the gas-liquid flow and mixing behaviour in a gas-mixed anaerobic digester by improving phase interaction modelling using Computational Fluid Dynamics (CFD). A 2D axisymmetric model validated with experimental data was set up using an Eulerian-Eulerian method. Uncertainty factors, including bubble size, phase interaction forces and liquid rheology were found to sig ...
DOI:
10.1016/j.watres.2018.10.077

10. Increasing capacity of an anaerobic sludge digester through FNA pre-treatment of thickened waste activated sludge

Author:
Zhang, Liguo; Duan, Haoran; Ye, Liu; Liu, Lei; Batstone, Damien J.; Yuan, Zhiguo
Source:
Water research 2019 v.149 pp. 406-413
ISSN:
0043-1354
Subject:
anaerobic digesters,   etc   ; activated sludge; anaerobic digestion; hydrolysis; methane production; nitrite nitrogen; nitrous acid; pH;     Show all 8 Subjects
Abstract:
... Free nitrous acid (FNA) pre-treatment has been previously demonstrated to be effective in enhancing methane production and volatile solids (VS) destruction in the anaerobic digestion of waste activated sludge for an equivalent hydraulic retention time (HRT). We hypothesise that, due to enhancement of hydrolysis kinetics, FNA pre-treatment will also allow reduction in the HRT while retaining perfor ...
DOI:
10.1016/j.watres.2018.11.008

11. Dynamic analysis of self-forming dynamic membrane (SFDM) filtration in submerged anaerobic bioreactor: Performance, characteristic, and mechanism

Author:
Sun, Fengkai; Zhang, Na; Li, Fazhan; Wang, Xia; Zhang, Jian; Song, Lianfa; Liang, Shuang
Source:
Bioresource technology 2018 v.270 pp. 383-390
ISSN:
0960-8524
Subject:
anaerobic digesters,   etc   ; chemical oxygen demand; filtration; hydrophobicity;     Show all 4 Subjects
Abstract:
... This study attempts to provide an improved fundamental understanding of the self-forming dynamic membrane (SFDM) filtration process in submerged anaerobic bioreactors. Excellent system performances were achieved in terms of high COD removal efficiency (∼ 90%), fast formation/reformation of SFDM (<1 h), and sustainable low-resistance (3.92 × 1010 m−1) high-flux (10–30 L/m2·h) filtration. A typical ...
DOI:
10.1016/j.biortech.2018.09.003

12. Influence of mixing on anaerobic digestion efficiency in stirred tank digesters: A review

Author:
Kariyama, Ibrahim Denka; Zhai, Xiaodong; Wu, Binxin
Source:
Water research 2018 v.143 pp. 503-517
ISSN:
0043-1354
Subject:
anaerobic digesters,   etc   ; anaerobic digestion; energy efficiency; mixing;     Show all 4 Subjects
Abstract:
... A comprehensive review was carried out on the influence of mixing on anaerobic digestion (AD) efficiency in stirred tank anaerobic digesters. Though traditionally, stirred tank digesters operated as continuous stirred tank reactors (CSTRs), this review revealed that there is no motivation to continue to operate stirred tank anaerobic digesters as CSTRs if AD energy efficiency is to be improved. AD ...
DOI:
10.1016/j.watres.2018.06.065

13. Methane yield and lag correlate with bacterial community shift following bioplastic anaerobic co-digestion

Author:
Venkiteshwaran, Kaushik; Benn, Nicholas; Seyedi, Saba; Zitomer, Daniel
Source:
Bioresource technology reports 2019 v.7 pp. 100198
ISSN:
2589-014X
Subject:
anaerobic digesters,   etc   ; Archaea; anaerobic digestion; bacteria; bacterial communities; bioplastics; methane; methane production; pH; pollution; polyhydroxybutyrate; renewable energy sources; sludge;     Show all 13 Subjects
Abstract:
... Past plastic management practices have resulted in pollution. An improved management scenario may involve adding used bioplastic to anaerobic digesters to increase methane for renewable energy. In this work, effects of polyhydroxybutyrate (PHB) bioplastic anaerobic co-digestion with synthetic primary sludge on operation and microbial communities were investigated. Co-digesters treating sludge were ...
DOI:
10.1016/j.biteb.2019.100198

14. Aggravation of membrane fouling and methane leakage by a three-phase separator in an external anaerobic ceramic membrane bioreactor

Author:
Pang, Chao; He, Chunhua; Hu, Zhenhu; Yuan, Shoujun; Wang, Wei
Source:
Frontiers of environmental science & engineering 2019 v.13 no.4 pp. 50
ISSN:
2095-2201
Subject:
anaerobic digesters,   etc   ; biogas; biomass; ceramics; chemical oxygen demand; community structure; fouling; membrane bioreactors; methane; microbial communities; polymers; sludge; wastewater;     Show all 13 Subjects
Abstract:
... The three-phase separator is a critical component of high-rate anaerobic bioreactors due to its significant contribution in separation of biomass, wastewater, and biogas. However, its role in an anaerobic membrane bioreactor is still not clear. In this study, the distinction between an external anaerobic ceramic membrane bioreactor (EAnCMBR) unequipped (R1) and equipped (R2) with a three-phase sep ...
DOI:
10.1007/s11783-019-1131-6

15. Performance evaluation of methanogenic digester using kitchen waste for validation of optimized hydrolysis conditions for reduction in ammonia accumulation

Author:
Sahu, Nidhi; Sharma, Ganesh; Chandrashekhar, B.; Jadeja, Niti B.; Kapley, Atya; Pandey, R.A.; Sharma, Abhinav
Source:
Renewable energy 2019 v.139 pp. 110-119
ISSN:
0960-1481
Subject:
anaerobic digesters,   etc   ; aeration; air; ammonia; anaerobic digestion; biogas; hydrolysis; kitchen waste; methane; methane production; methanogens; pH; temperature;     Show all 13 Subjects
Abstract:
... Ammonia accumulation above the inhibitory level is the major cause of failure of anaerobic digesters (AD) treating kitchen waste (KW). In the present investigation a biphasic system (hydrolysis and methanogenesis) was evaluated for validation of previously optimized hydrolysis conditions [pH 7.2–7.5, Aeration 0.19–0.22 vvm (volume of air per unit volume of media per minute), Temperature 44 - 48 °C ...
DOI:
10.1016/j.renene.2019.02.023

16. Three-stage anaerobic co-digestion of food waste and waste activated sludge: Identifying bacterial and methanogenic archaeal communities and their correlations with performance parameters

Author:
Zhang, Le; Loh, Kai-Chee; Zhang, Jingxin; Mao, Liwei; Tong, Yen Wah; Wang, Chi-Hwa; Dai, Yanjun
Source:
Bioresource technology 2019 v.285 pp. 121333
ISSN:
0960-8524
Subject:
anaerobic digesters,   etc   ; Bacteroidetes; Methanobacterium; Methanosaeta; Methanosarcina; Pseudomonas; Tissierella; activated sludge; anaerobic digestion; food waste; methane production; methanogens;     Show all 12 Subjects
Abstract:
... A three-stage anaerobic digester setup was configured and evaluated for enhanced methane production during co-digestion of food waste and waste activated sludge and the corresponding bacterial and methanogen communities were characterized. Results showed that the average methane yield (0.496 L/gVS) in the three-stage digester was 13–52% higher than that of one- and two-stage digesters. Compared to ...
DOI:
10.1016/j.biortech.2019.121333

17. Evaluation of concentration technologies in the design of biorefineries for the recovery of resources from vinasse

Author:
Peiter, Fernanda S.; Hankins, Nicholas P.; Pires, Eduardo C.
Source:
Water research 2019 v.157 pp. 483-497
ISSN:
0043-1354
Subject:
anaerobic digesters,   etc   ; anaerobic digestion; biorefining; distillation; electricity; evaporation; evaporators; exergy; industry; reverse osmosis; sugarcane; vinasse; water requirement;     Show all 13 Subjects
Abstract:
... This article reports a study of five designs of vinasse biorefineries that incorporate anaerobic bioreactors followed by a concentration technology such as evaporation, reverse osmosis, or forward osmosis. Different techniques of draw solution regeneration – evaporation, reverse osmosis, and membrane distillation – were also analyzed. Exergy analysis, a method that evaluates the resource conversio ...
DOI:
10.1016/j.watres.2019.04.003

18. Fluid dynamic study of anaerobic digester: optimization of mixing and geometric configuration by using response surface methodology and factorial design

Author:
Leonzio, Grazia
Source:
Renewable energy 2019 v.136 pp. 769-780
ISSN:
0960-1481
Subject:
anaerobic digesters,   etc   ; anaerobic digestion; geometry; hydrodynamics; mathematical models; mixing; nozzles; pumps; renewable energy sources; response surface methodology;     Show all 10 Subjects
Abstract:
... Mixing is an important parameter in order to have an efficient anaerobic digestion. Computational fluid dynamics can provide a detailed modeling about the hydrodynamics and mixing of anaerobic digestion. In this research, a study about the fluid dynamic of anaerobic digester is carried out with the aim to find the best configuration that optimizes mixing. External recirculating pumps are used as m ...
DOI:
10.1016/j.renene.2018.12.115

19. Use of attainable regions for synthesis and optimization of multistage anaerobic digesters

Author:
Abunde Neba, F.; Asiedu, Nana Y.; Addo, Ahmad; Morken, John; Østerhus, Stein W.; Seidu, Razak
Source:
Applied energy 2019 v.242 pp. 334-350
ISSN:
0306-2619
Subject:
anaerobic digesters,   etc   ; anaerobic digestion; chickens; feeds; food waste; geometry; goats; horses; mixing; model validation; models; pig manure;     Show all 12 Subjects
Abstract:
... Anaerobic digestion involves multiple reactions, and when operated as a single stage, the process conditions are only suitable for all the reactions with no particular reaction being optimized, hence limiting overall performance. Multistage anaerobic digestion, in which multiple digesters are operated in a network are designed to optimize each process reaction, but very few writers have drawn on a ...
DOI:
10.1016/j.apenergy.2019.03.095

20. Microbiota in anaerobic digestion of sewage sludge with and without co‐substrates

Author:
Walter, Andreas; Probst, Maraike; Franke‐Whittle, Ingrid H.; Ebner, Christian; Podmirseg, Sabine Marie; Etemadi‐Shalamzari, Mohammad; Hupfauf, Sebastian; Insam, Heribert
Source:
Water and environment journal 2019 v.33 no.2 pp. 214-222
ISSN:
1747-6585
Subject:
anaerobic digesters,   etc   ; Bacteroidetes; Chloroflexi; Firmicutes; Methanosaeta; Proteobacteria; anaerobic digestion; bacterial communities; community structure; methanogens; microbial activity; physicochemical properties; sewage sludge;     Show all 13 Subjects
Abstract:
... In this study, seven full‐scale anaerobic digesters, with or without co‐substrate regime, were analysed by physicochemical and molecular biological methods. A combination of robust community fingerprinting and Illumina MiSeq sequencing revealed a core bacterial community dominated by Chloroflexi, Firmicutes, Bacteroidetes and Proteobacteria, with variations in the profiles because of differences i ...
DOI:
10.1111/wej.12392