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1. 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; methane production,   etc   ; Fourier transform infrared spectroscopy; Methanobacterium; Methanosarcina; anaerobic digestion; community structure; 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

2. 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

3. 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; methane production,   etc   ; air; 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

4. 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; methane production,   etc   ; Holstein; dairy cattle; 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

5. 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; methane production,   etc   ; catalytic activity; enzymatic reactions; 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

6. Mini Review on Wettability in the Methane–Liquid–Rock System at Reservoir Conditions: Implications for Gas Recovery and Geo-Storage

Author:
Bin Pan; Teng Ni; Weiyao Zhu; Yongfei Yang; Yang Ju; Lijie Zhang; Shengnan Chen; Jianwei Gu; Yajun Li; Stefan Iglauer
Source:
Energy & fuels 2022 v.36 no.8 pp. 4268-4275
ISSN:
1520-5029
Subject:
coalbed methane; methane,   etc   ; energy; roughness; salinity; shale gas; temperature; wettability;     Show all 8 Subjects
Abstract:
... Wettability in the methane (CH₄)–liquid–rock system is a key parameter which determines gas recovery and geo-storage efficiencies. However, there is a lack of an overview over this area; thus, we critically review this parameter from experimental and theoretical perspectives and discuss the impact of pressure and temperature conditions, fluid properties (salinity, ion type, and aqueous versus nona ...
DOI:
10.1021/acs.energyfuels.2c00308

7. In Situ Enhancement and Isotopic Labeling of Biogenic Coalbed Methane

Author:
Elliott P. Barnhart; Leslie F. Ruppert; Randy Hiebert; Heidi J. Smith; Hannah D. Schweitzer; Arthur C. Clark; Edwin P. Weeks; William H. Orem; Matthew S. Varonka; George Platt; Jenna L. Shelton; Katherine J. Davis; Robert J. Hyatt; Jennifer C. McIntosh; Kilian Ashley; Shuhei Ono; Anna M. Martini; Keith C. Hackley; Robin Gerlach; Lee Spangler; Adrienne J. Phillips; Mark Barry; Alfred B. Cunningham; Matthew W. Fields
Source:
Environmental science & technology 2022 v.56 no.5 pp. 3225-3233
ISSN:
1520-5851
Subject:
coalbed methane; methane; methane production,   etc   ; carbon; coal; dissolved gases; environmental science; global carbon budget; methanogens; technology; yeast extract; yeasts;     Show all 12 Subjects
Abstract:
... Subsurface microbial (biogenic) methane production is an important part of the global carbon cycle that has resulted in natural gas accumulations in many coal beds worldwide. Laboratory studies suggest that complex carbon-containing nutrients (e.g., yeast or algae extract) can stimulate methane production, yet the effectiveness of these nutrients within coal beds is unknown. Here, we use downhole ...
DOI:
10.1021/acs.est.1c05979

8. 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; methane production,   etc   ; deformation; hydraulic fracturing; 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

9. 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; methane production,   etc   ; Methanobacteriales; aeration; dairy manure; genes; metabolism; 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

10. 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; methane production,   etc   ; anaerobic digestion; bioenergy; biomass; electrolysis; 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

11. Biogas production from residual marine macroalgae biomass: Kinetic modelling approach

Author:
Sara Pardilhó; José C. Pires; Rui Boaventura; Manuel Almeida; Joana Maia Dias
Source:
Bioresource technology 2022 v.359 pp. 127473
ISSN:
0960-8524
Subject:
methane; methane production,   etc   ; anaerobic digestion; biomass; gas production (biological); macroalgae; models; wastes;     Show all 8 Subjects
Abstract:
... Modelling the conversion of residual biomass to renewable fuels is of high relevance to promote the development of effective technological solutions. The present study compares the performance of five different kinetic models (pseudo-first-order kinetics, logistics, modified Gompertz, double-Gompertz, and multi-Gompertz) to describe the cumulative methane production during a low-solids anaerobic d ...
DOI:
10.1016/j.biortech.2022.127473

12. Methane emission via sediment and water interface in the Bohai Sea, China

Author:
Kunpeng Zang; Gen Zhang; Xuemei Xu; Nan Zheng; Haoyu Xiong; Haixiang Hong; Kai Jiang; Miao Liang
Source:
Journal of environmental sciences (China) 2022 v.114 pp. 465-474
ISSN:
1001-0742
Subject:
methane; methane production,   etc   ; earthquakes; seawater; sediment-water interface; sediments; China; Yellow Sea;     Show all 8 Subjects
Abstract:
... Sediment is recognized as the largest reservoir and source of methane (CH₄) in the ocean, especially in the shallow coastal areas. To date, few data of CH₄ concentration in sediment have been reported in the China shelf seas. In this study, we measured CH₄ concentration in sediment and overlying seawater columns, and conducted an incubation experiment in the Bohai Sea in May 2017. CH₄ concentratio ...
DOI:
10.1016/j.jes.2021.08.031

13. The widespread capability of methylphosphonate utilization in filamentous cyanobacteria and its ecological significance

Author:
Liang Zhao; Li-Zhou Lin; Meng-Yun Chen; Wen-Kai Teng; Ling-Ling Zheng; Liang Peng; Jin Lv; Jerry J. Brand; Chun-Xiang Hu; Bo-Ping Han; Li-Rong Song; Wen-Sheng Shu
Source:
Water research 2022 v.217 pp. 118385
ISSN:
0043-1354
Subject:
methane; methane production,   etc   ; Cyanobacteria; algae; homeostasis; mineralization; orthophosphates; phosphonates; phosphorus; photophase; research;     Show all 11 Subjects
Abstract:
... Aquatic ecosystems comprise almost half of total global methane emissions. Recent evidence indicates that a few strains of cyanobacteria, the predominant primary producers in bodies of water, can produce methane under oxic conditions with methylphosphonate serving as substrate. In this work, we have screened the published 2 568 cyanobacterial genomes for genetic elements encoding phosphonate-metab ...
DOI:
10.1016/j.watres.2022.118385

14. Transient shifts in hydraulic retention times improve the methane production from ruminal hydrolysates of agave bagasse

Author:
Miguel Vital‐Jácome; Martín Barragán‐Trinidad; Germán Buitrón; Guillermo Quijano
Source:
Journal of chemical technology and biotechnology 2022 v.97 no.6 pp. 1536-1544
ISSN:
0268-2575
Subject:
methane; methane production,   etc   ; Agave tequilana; alkalinity; bagasse; biomass; biotechnology; hydrolysates; lignocellulose; methanogens;     Show all 10 Subjects
Abstract:
... BACKGROUND: Valorization of lignocellulosic wastes such as agave bagasse from tequila industries can be enhanced using efficient biomass pretreatments. However, the next challenge requires finding the best process conditions to produce methane and remove chemical oxygen demand (COD) from the pretreatment hydrolysates. In this work, an innovative feeding strategy based on alternating hydraulic rete ...
DOI:
10.1002/jctb.6853

15. Heteroatom-doping regulated Mg6MnO8 for improving C2+ hydrocarbons during chemical looping oxidative coupling of methane

Author:
Ju Huang; Kun Zhao; Shican Jiang; Shunshun Kang; Yan Lin; Zhen Huang; Anqing Zheng; Zengli Zhao
Source:
Fuel processing technology 2022 v.235 pp. 107352
ISSN:
0378-3820
Subject:
methane,   etc   ; oxidation; oxygen;     Show all 3 Subjects
Abstract:
... Chemical looping oxidative coupling of methane (CLOCM) is a novel process for the selective oxidization of methane to produce C₂₊ hydrocarbons. However, the high activity of oxygen carriers usually promotes the undesired complete or partial oxidation of methane to form large amounts of COₓ. Herein, a series of novel composite oxide carriers of Mg₆MnO₈ doped by heteroatoms (Na, W, and P) are develo ...
DOI:
10.1016/j.fuproc.2022.107352

16. Effect of silkworm (Bombyx mori) pupae oil supplementation on enteric methane emission and methanogens diversity in sheep

Author:
G. Thirumalaisamy; P. K. Malik; A. P. Kolte; S. Trivedi; A. Dhali; R. Bhatta
Source:
Animal biotechnology 2022 v.33 no.1 pp. 128-140
ISSN:
1532-2378
Subject:
methane; methane production,   etc   ; Bombyx mori; Methanobrevibacter; adults; biotechnology; diet; methanogens; oils; sheep; silkworms;     Show all 11 Subjects
Abstract:
... In vitro and in vivo studies were conducted to examine the effect of silkworm pupae oil on methane (CH₄) emission and methanogens diversity. Five graded levels (2, 4, 6, 8 and 10%) of silkworm pupae oil were tested in vitro. Eighteen Mandya adult sheep were divided into three groups. All the animals were fed on similar basal diet except the oil supplementation in test groups. Oil level for supplem ...
DOI:
10.1080/10495398.2020.1781147

17. Enhancing temperature-phased biological hydrolysis for methane generation by the optimization of biological hydrolysis time, inoculum, and sludge bypass

Author:
Beraki B. Mehari; Sheng Chang
Source:
Biochemical engineering journal 2022 v.180 pp. 108363
ISSN:
1369-703X
Subject:
methane; methane production,   etc   ; activated sludge; anaerobic digestion; biodegradability; hydrolysis; inoculum; process design; wastewater;     Show all 9 Subjects
Abstract:
... This work investigated the effect of biological hydrolysis (BH) time, biological hydrolysis inoculum (BHI), and sludge bypass (SBP) on the performance of temperature-phased biological hydrolysis (TPBH) in the treatment of waste activated sludge (WAS). Results showed that BH times and BHI significantly affected the hydrolysis and methane production of WAS. The TPBH treated WAS without BHI had achie ...
DOI:
10.1016/j.bej.2022.108363

18. Nitrogen removal by eutrophic coastal wetlands accomplished with CH4 emission reduction

Author:
Hualei Yang; Xuechu Chen; Chunsong Zhang; Mingming Zhao; Xinmeng Zhao; Danielle C. Perry; Jianwu Tang
Source:
Journal of cleaner production 2022 v.332 pp. 130082
ISSN:
0959-6526
Subject:
methane; methane production,   etc   ; blue carbon; carbon sinks; denitrification; eutrophication; marshes; nitrogen; oxidation; sediments;     Show all 10 Subjects
Abstract:
... Coastal wetlands play an important role in nitrogen removal and are a vital blue carbon sink. The produced methane (CH₄) in coastal wetlands has been recently identified as a possible carbon source for denitrification process, providing a significant contribution to coastal nitrogen cycling. However, the in-situ correlation between CH₄ emissions and denitrification rate, as well as their coupling ...
DOI:
10.1016/j.jclepro.2021.130082

19. Temperature sensitivity of anaerobic methane oxidation versus methanogenesis in paddy soil: Implications for the CH4 balance under global warming

Author:
Lichao Fan; Michaela A. Dippold; Volker Thiel; Tida Ge; Jinshui Wu; Yakov Kuzyakov; Maxim Dorodnikov
Source:
Global change biology 2022 v.28 no.2 pp. 654-664
ISSN:
1354-1013
Subject:
methane; methane production,   etc   ; Biological Sciences; activation energy; climate; oxidation; paddies; paddy soils; temperature;     Show all 9 Subjects
Abstract:
... The global methane (CH₄) budget is based on a sensitive balance between methanogenesis and CH₄ oxidation (aerobic and anaerobic). The response of these processes to climate warming, however, is not quantified. This largely reflects our lack of knowledge about the temperature sensitivity (Q₁₀) of the anaerobic oxidation of CH₄ (AOM)—a ubiquitous process in soils. Based on a ¹³CH₄ labeling experimen ...
DOI:
10.1111/gcb.15935

20. The biological and abiotic effects of powdered activated carbon on the anaerobic digestion performance of cornstalk

Author:
Zhijie Xie; Qin Cao; Yichao Chen; Yiping Luo; Xiaofeng Liu; Dong Li
Source:
Bioresource technology 2022 v.343 pp. 126072
ISSN:
0960-8524
Subject:
methane; methane production,   etc   ; activated carbon; adsorption; anaerobic digestion; cellulose; corn stover; electron transfer;     Show all 8 Subjects
Abstract:
... To comprehensively evaluate the biological and abiotic influence of powdered activated carbon (PAC) on the anaerobic digestion of cornstalk, mesophilic and thermophilic digestion were conducted. Adding PAC (10 g/L) under thermophilic system obtained the maximum cellulose degradation rate and methane yield (MY), which were 57.47% and 128.19 L/kg VS. However, adding same dose of PAC at mesophilic sy ...
DOI:
10.1016/j.biortech.2021.126072