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1. Comparison of mesophilic and thermophilic anaerobic digestions of thermal hydrolysis pretreated swine manure: Process performance, microbial communities and energy balance

Author:
Xiaohui Liu; Changmin Lee; Jae Young Kim
Source:
Journal of environmental sciences (China) 2023 v.126 pp. 222-233
ISSN:
1001-0742
Subject:
methane production,   etc   ; Euryarchaeota; ammonia; anaerobic digestion; biogas; economic performance; energy balance; energy efficiency; pig manure; thermal hydrolysis; China;     Show all 11 Subjects
Abstract:
... Anaerobic digestion (AD) of swine manure (SM) commonly shows low biogas output and unsatisfactory economic performance. In this study, thermophilic AD (TAD, 50 ± 1 °C) was combined with thermal hydrolysis pretreatment (THP, 170 °C/10 bar), to investigate its potential for maximizing biogas yield, securing successful digestion and microbial diversity, as well as improving energy balance. Four lab-s ...
DOI:
10.1016/j.jes.2022.03.032

2. Anaerobic co-digestion of thermo-alkaline pretreated microalgae and sewage sludge: Methane potential and microbial community

Author:
Jiaqi Fu; Bing Yan; Shuanglin Gui; Yinxuan Fu; Song Xia
Source:
Journal of environmental sciences (China) 2023 v.127 pp. 133-142
ISSN:
1001-0742
Subject:
methane production,   etc   ; Fourier transform infrared spectroscopy; Methanobacterium; Methanosarcina; anaerobic digestion; community structure; methane; methanogens; microalgae; microbial communities; sewage sludge; thermogravimetry; China;     Show all 13 Subjects
Abstract:
... To improve methane production from sewage sludge (SS), co-digestion of SS and microalgae (MA) was studied and the application of thermo-alkaline pretreatment to MA was evaluated. The results showed that thermo-alkaline pretreatment at 90°C for 120 min on MA was the optimum pretreatment condition. Furthermore, when the volatile solids (VS) ratio of SS and MA was 1:2, the methane yield reached maxim ...
DOI:
10.1016/j.jes.2022.04.020

3. Anaerobic codigestion of excess sludge with chicken manure with a focus on methane yield and digestate dewaterability

Author:
Tianfeng Wang; Zhijie Xing; Liyuan Zeng; Cheng Peng; Hailong Shi; Jay J. Cheng; Qingfang Zhang
Source:
Bioresource technology reports 2022 v.19 pp. 101127
ISSN:
2589-014X
Subject:
methane production,   etc   ; anaerobic digestion; poultry manure; sludge;     Show all 4 Subjects
Abstract:
... The effects of the mixing ratio of excess sludge (ES) with chicken manure (CM) on methane yield and digestate dewaterability were investigated at thermophilic and mesophilic temperatures. Batch experiments were performed at five different volatile solid ratios (ES/CM). Compared with anaerobic digestion of ES alone, codigestion of ES with CM increased methane yield 82.4–123.1 mL g⁻¹-VSₐddₑd (mesoph ...
DOI:
10.1016/j.biteb.2022.101127

4. A Methane Emission Estimation Tool (MEET) for predictions of emissions from upstream oil and gas well sites with fine scale temporal and spatial resolution: Model structure and applications

Author:
David T. Allen; Felipe J. Cardoso-Saldaña; Yosuke Kimura; Qining Chen; Zhanhong Xiang; Daniel Zimmerle; Clay Bell; Chris Lute; Jerry Duggan; Matthew Harrison
Source:
Science of the total environment 2022 v.829 pp. 154277
ISSN:
0048-9697
Subject:
methane production,   etc   ; case studies; environment; liquids; models; oils;     Show all 6 Subjects
Abstract:
... In comparing observation based methane emission estimates for oil and gas well sites to routine emissions reported in inventories, the time scale of the measurement should match the time scale over which the inventoried emissions are estimated. Since many measurements are of relatively short duration (seconds to hours), a tool is needed to estimate emissions over these time scales rather than the ...
DOI:
10.1016/j.scitotenv.2022.154277

5. An optimized design of residential integrated energy system considering the power-to-gas technology with multi-functional characteristics

Author:
Dongdong Zhang; Hongyu Zhu; Hongcai Zhang; Hui Hwang Goh; Hui Liu; Thomas Wu
Source:
Energy 2022 v.238 pp. 121774
ISSN:
0360-5442
Subject:
methane production,   etc   ; energy conversion; hydrogen production; models; transportation;     Show all 5 Subjects
Abstract:
... In order to realize the large-scale and normal implementation of power-to-gas technology, as well as the large-capacity storage and long-distance transportation of gas in the later stage of electric hydrogen production, a power-to-gas technology with real-time energy conversion characteristics and large-scale energy storage characteristics is studied in this paper. Firstly, the water-electricity-g ...
DOI:
10.1016/j.energy.2021.121774

6. A coupling model for solid-state anaerobic digestion in leach-bed reactors: Mobile-Immobile water and anaerobic digestion model

Author:
A. Coutu; M.A. Hernández-Shek; S. Mottelet; S. Guérin; V. Rocher; A. Pauss; T. Ribeiro
Source:
Bioresource technology reports 2022 v.17 pp. 100961
ISSN:
2589-014X
Subject:
methane production,   etc   ; anaerobic digestion; cattle manure; hydrodynamics; hydrolysis; models;     Show all 6 Subjects
Abstract:
... A coupling distributed solid-state anaerobic digestion model was developed and performed considering a simplified AM2 model and a saturated Mobile-Immobile water Model (MIM). This model allows considering both microporosity and macroporosity evolutions as well as the impact on biological kinetics. This model was adapted, implemented and validated on cattle manure in mesophilic conditions and carri ...
DOI:
10.1016/j.biteb.2022.100961

7. Estimation of methane emission from an urban wastewater treatment plant applying inverse Gaussian model

Author:
Carla Stadler; Victoria S. Fusé; Santiago Linares; Paula Juliarena
Source:
Environmental monitoring and assessment 2022 v.194 no.1 pp. 27
ISSN:
0167-6369
Subject:
methane production,   etc   ; air; methane; models; population density; wastewater treatment;     Show all 6 Subjects
Abstract:
... The methane (CH₄) emissions from urban sources are increasing, and they depend on the processes and technologies applied in each one. Thus, studying them individually to quantify their emissions and understand their behavior to design CH₄ mitigation strategies is meaningful. Although many studies have been carried out in different cities worldwide, the complex methodologies and technologies applie ...
DOI:
10.1007/s10661-021-09660-4

8. Iron-based biochar derived from waste-activated sludge enhances anaerobic digestion of synthetic salty organic wastewater for methane production

Author:
Linxuan Che; Bo Yang; Qing Tian; Hui Xu
Source:
Bioresource technology 2022 v.345 pp. 126465
ISSN:
0960-8524
Subject:
methane production,   etc   ; anaerobic digestion; biochar; iron; pyrolysis; sludge; wastewater;     Show all 7 Subjects
Abstract:
... Herein, synthetic iron-based biochar was used in anaerobic digestion of synthetic salty organic wastewater for methane production. The iron-based biochar synthesized at different pyrolysis temperatures improved methane production. An optimal methane production of 551 ± 4.0 mL/L was achieved by adding iron-based biochar prepared at 700℃. The rate of hydrolysis-acidification and methanogenesis was p ...
DOI:
10.1016/j.biortech.2021.126465

9. Potential Application of Alkaline Metal Nitrate-Promoted Magnesium-Based Materials in the Integrated CO₂ Capture and Methanation Process

Author:
Wei Liu; Yifan Cai; Mengjie Luo; Ying Yang; Ping Li
Source:
Industrial & engineering chemistry process design and development 2022 v.61 no.7 pp. 2882-2893
ISSN:
1520-5045
Subject:
methane production,   etc   ; adsorbents; adsorption; carbon dioxide; catalysts; process design;     Show all 6 Subjects
Abstract:
... An integrated CO₂ capture and methanation process with regenerable H₂ is a promising approach to mitigate anthropogenic CO₂ emissions. In this integrated process, the development of efficient adsorbents and catalysts is very critical. Here, NaNO₃-promoted MgO adsorbents are prepared and shaped into ∼1.5 mm particles for CO₂ capture, and the potential application of NaNO₃-MgO adsorbents in the inte ...
DOI:
10.1021/acs.iecr.1c04615

10. Predicting enteric methane emission in lactating Holsteins based on reference methane data collected by the GreenFeed system

Author:
R. Liu; D. Hailemariam; T. Yang; F. Miglior; F. Schenkel; Z. Wang; P. Stothard; S. Zhang; G. Plastow
Source:
Animal 2022 v.16 no.3 pp. 100469
ISSN:
1751-7311
Subject:
methane production,   etc   ; Holstein; dairy cattle; methane; milk; models; prediction;     Show all 7 Subjects
Abstract:
... Methane emission is not included in the current breeding goals for dairy cattle mainly due to the expense and difficulty in obtaining sufficient data to generate accurate estimates of the relevant traits. While several models have been developed to predict methane emission from milk spectra using reference methane data obtained by the respiration chamber, SF6 and sniffer methods, the prediction of ...
DOI:
10.1016/j.animal.2022.100469

11. Core-shell structured polyaniline/polypyrrole composites promoted methane production from anaerobic sludge

Author:
Jie Zhou; Wen Huang; Bin Qiu; Qian Hu; Xiang Cheng; Zhanhu Guo
Source:
Chemosphere 2022 v.287 pp. 132296
ISSN:
0045-6535
Subject:
methane production,   etc   ; electron transfer; polyaniline; polymerization; pyrroles; sludge; wastewater treatment;     Show all 7 Subjects
Abstract:
... The core-shell structured polypyrrole/polyaniline (PPy@PANI) were synthesized by in-situ polymerization method and were used as the conductive medium to enhance methane production from the anaerobic wastewater treatment. It was found that the PPy@PANI has a good performance on methane production from the anaerobic wastewater treatment, and it composites can improve the methane production rate and ...
DOI:
10.1016/j.chemosphere.2021.132296

12. Focusing on a nickel hydrocorphinoid in a protein matrix: methane generation by methyl-coenzyme M reductase with F430 cofactor and its models

Author:
Yuta Miyazaki; Koji Oohora; Takashi Hayashi
Source:
Chemical Society reviews 2022 v.51 no.5 pp. 1629-1639
ISSN:
1460-4744
Subject:
methane production,   etc   ; catalytic activity; enzymatic reactions; methane; nickel; oxidation; oxidoreductases;     Show all 7 Subjects
Abstract:
... Methyl-coenzyme M reductase (MCR) containing a nickel hydrocorphinoid cofactor, F430, is an essential enzyme that catalyzes anaerobic methane generation and oxidation. The active Ni(i) species in MCR converts methyl-coenzyme M (CH₃S–CoM) and coenzyme B (HS–CoB) to methane and heterodisulfide (CoM–S–S–CoB). Extensive experimental and theoretical studies focusing on the substrate-binding cavity incl ...
DOI:
10.1039/d1cs00840d

13. Rice straw pretreatment using cow breeding wastewater for methane production

Author:
Lili Wang; Yibo Li; Lei Xu; Dongsheng Sun; Yihao Wang; Zhongjiang Wang
Source:
Bioresource technology 2022 v.346 pp. 126657
ISSN:
0960-8524
Subject:
methane production,   etc   ; ammonium nitrogen; cows; filtration; lignin; rice straw; wastewater;     Show all 7 Subjects
Abstract:
... The aim of this study was to investigate the pretreatment of rice straw using cow breeding wastewater. The effects of filtering cow breeding wastewater through rice straw and microaerobic treatment on the pretreatment characteristics and methane production of rice straw were investigated. Generally, the filtration improved the pretreatment effect by adsorbing ammonium nitrogen and achieved higher ...
DOI:
10.1016/j.biortech.2021.126657

14. The role of biomass gasification in the future flexible power system – BECCS or CCU?

Author:
Johan M. Ahlström; Viktor Walter; Lisa Göransson; Stavros Papadokonstantakis
Source:
Renewable energy 2022 v.190 pp. 596-605
ISSN:
0960-1481
Subject:
methane production,   etc   ; biofuels; biogasification; carbon dioxide; electricity; models; renewable electricity;     Show all 7 Subjects
Abstract:
... In this work we study if biomass gasification for production of advanced biofuels can also play a role in managing variability in the electricity system. The idea is a CCU/power-to-gas concept to enhance methane production from biomass gasification. The suggested process is flexible in that CO₂ not used for methane production can be stored through a BECCS concept that implies negative GHG emission ...
DOI:
10.1016/j.renene.2022.03.100

15. A Four-Phase Model for Methane Production from an Unconsolidated Hydrate Reservoir. Part 2. Numerical Simulation

Author:
Deniz Hinz; Hamid Arastoopour; Javad Abbasian
Source:
Industrial & engineering chemistry process design and development 2022 v.61 no.20 pp. 7114-7129
ISSN:
1520-5045
Subject:
methane production,   etc   ; deformation; hydraulic fracturing; methane; models; permeability; process design; sand;     Show all 8 Subjects
Abstract:
... In this paper, the Mallik production tests are simulated using our four-phase flow model for an unconsolidated methane hydrate reservoir. Model development was outlined in part 1 of this paper series. The simulations suggest that the unconsolidated hydrate reservoir with sand production behaves like a naturally fracking reservoir. Solid deformation and the resultant permeability have a substantial ...
DOI:
10.1021/acs.iecr.2c00212

16. Efficient pyrolysis process of lignin over dual catalyst bed for the production of Phenols and Aromatics

Author:
Ikram Uddin; Hamid Ali; Abdullah G. Al-Sehemi; Shabbir Muhammad; N. Hamad; T.A. Taha; Huda Salem AlSalem; Asma M. Alenad; Arkom Palamanit; Asif Hayat; Muhammad Sohail
Source:
South African journal of botany 2022 v.149 pp. 109-116
ISSN:
0254-6299
Subject:
methane production,   etc   ; biochar; biofuels; biomass; botany; catalysts; hydrogen production; lignin; pyrolysis;     Show all 9 Subjects
Abstract:
... In this study, we developed an effective method for converting lignin into useful compounds to replace fossil-based products. The dual catalyst bed was used to catalyze the resulting pyrolysis vapors over it. A maximum bio-oil yield of 44.058 wt.% and gas yield of 28.9 wt.% along with 26.52 wt.% of bio-char is achieved. The biomass product (gas and Bio-oil) was characterized using GC-FID and GC–MS ...
DOI:
10.1016/j.sajb.2022.05.061

17. Enhanced anaerobic digestion of tar solution from rice husk thermal gasification with hybrid upflow anaerobic sludge-biochar bed reactor

Author:
Haiyuan Ma; Yong Hu; Jiang Wu; Takuro Kobayashi; Kai-Qin Xu; Hidetoshi Kuramochi
Source:
Bioresource technology 2022 v.347 pp. 126688
ISSN:
0960-8524
Subject:
methane production,   etc   ; anaerobic digestion; biochar; biogasification; chemical oxygen demand; rice hulls;     Show all 6 Subjects
Abstract:
... Tar generated as a by-product during biomass gasification contains a high concentration of refractory organic matters. In this study, a hybrid upflow anaerobic sludge-biochar bed reactor was established for tar treatment, and the methane yield was 120–154 NmL-CH₄/g-CODᵢₙf, 20–30% higher than the control reactor. COD removal and methane production significantly decreased in both reactors when the i ...
DOI:
10.1016/j.biortech.2022.126688

18. Exploring the microbial mechanism of reducing methanogenesis during dairy manure membrane-covered aerobic composting at industrial scale

Author:
Chen Fang; Ya Su; Yuying Liang; Lujia Han; Xueqin He; Guangqun Huang
Source:
Bioresource technology 2022 v.354 pp. 127214
ISSN:
0960-8524
Subject:
methane production,   etc   ; Methanobacteriales; aeration; dairy manure; genes; metabolism; methane; oxygen; technology;     Show all 9 Subjects
Abstract:
... In this study, the microbial mechanism of reducing methanogenesis during membrane-covered aerobic composting from solid dairy manure was investigated. An industrial-scale experiment was carried out to compare a static composting group (SC) and a forced aeration composting group (AC) with a semipermeable membrane-covered composting group (MC + AC). The results showed that the semipermeable membrane ...
DOI:
10.1016/j.biortech.2022.127214

19. Integrating anaerobic digestion with microbial electrolysis cell for performance enhancement: A review

Author:
Wei Wang; Duu-Jong Lee; Zhongfang Lei
Source:
Bioresource technology 2022 v.344 pp. 126321
ISSN:
0960-8524
Subject:
methane production,   etc   ; anaerobic digestion; bioenergy; biomass; electrolysis; methane; microbial electrolysis cells;     Show all 7 Subjects
Abstract:
... Anaerobic digestion has been recognized as promising technology for bioenergy production, while the bottlenecks including long start up times, low methane contents, and susceptibility toward environmental change attenuate the process benefits. Integrating microbials electrolysis cell (MEC) with anaerobic digestion (AD) has been recognized as a promising strategy for alleviate the performance bottl ...
DOI:
10.1016/j.biortech.2021.126321

20. Partitioning methane flux by the eddy covariance method in a cool temperate bog based on a Bayesian framework

Author:
Masahito UEYAMA; Tomotsugu YAZAKI; Takashi HIRANO; Ryosuke ENDO
Source:
Agricultural and forest meteorology 2022 v.316 pp. 108852
ISSN:
0168-1923
Subject:
methane production,   etc   ; Bayesian theory; Japan; eddy covariance; forests; meteorology; models; oxidation;     Show all 8 Subjects
Abstract:
... The responses of CH₄ fluxes to environmental drivers are known to be complex in wetlands and are not easily interpreted due to their nonlinear nature. To better understand the observed CH₄ flux, we developed a method to partition this flux into CH₄ production, oxidation, and three transport pathways. Based on a Bayesian method with six-year eddy covariance measurements from a cool temperate bog in ...
DOI:
10.1016/j.agrformet.2022.108852