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Discussion on the Content of Coal Bed Gas Predicted by Indirect Method

Xian Xuefu,Gu Min

Strategic Study of CAE 2006, Volume 8, Issue 8,   Pages 15-22

Abstract:

Some dispute problems about the content of coal bed gas (methane) predicted by indirect method, includingthe existing status of the methane, the adsorption isotherm models for coal bed gas and their relationships, the free methane state in coal seam and the parameters for its capacity calculation, were discussed

Keywords： indirect method     gas in coal seam     methane     methane adsorbed     free methane    

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Dissolved methane in anaerobic effluent: Emission or recovery?

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 4, doi: 10.1007/s11783-022-1537-4

Abstract: However, dissolved methane in anaerobic effluent appears to be a barrier towards the energy and carbonAlthough several dissolved methane recovery methods have been developed, their engineering feasibilityIn this perspective, we thus intend to offer additional insights into the cost-benefit of dissolved methane

Keywords： Anaerobic treatment     Municipal wastewater     Dissolved methane     Methane recovery     Carbon emission    

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Influencing mechanism of high solid concentration on anaerobic mono-digestion of sewage sludge without agitation

Yuyao ZHANG,Huan LI,Can LIU,Yingchao CHENG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 1108-1116 doi: 10.1007/s11783-015-0806-x

Abstract: digestion of sewage sludge was a promising process, but high solid concentration negatively influenced methaneTS 6% was the boundary between low-solids and high-solids anaerobic digestion, and the accumulative methaneanaerobic digestion was directly determined by the efficiency of mass transfer, and the relation between methaneThe blocked mass transfer led to the accumulation of volatile fatty acids (VFAs) and free ammonia.The concentration of free ammonia increased gradually, and the methanogenesis was inhibited when free

Keywords： anaerobic digestion     methane     sewage sludge     volatile fatty acids     free ammonia    

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USING NUTRITIONAL STRATEGIES TO MITIGATE RUMINAL METHANE EMISSIONS FROM RUMINANTS

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 3,   Pages 390-402 doi: 10.15302/J-FASE-2023504

Abstract:

● Microbial fermentation in the rumen is a main source of methane

Keywords： nutritional strategy     mitigation     microbe     methane     ruminant    

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Acid Orange 7 degradation using methane as the sole carbon source and electron donor

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 3, doi: 10.1007/s11783-021-1468-5

Abstract:

• AO7 degradation was coupled with anaerobic methane oxidation.

Keywords： Azo dyes     AO7 degradation     Anaerobic methane oxidation     Microbial community     ANME-2d    

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Variation characteristics of atmospheric methane and carbon dioxide in summertime at a coastal site in

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 11, doi: 10.1007/s11783-022-1574-z

Abstract:

● Diurnal patterns of CH4 and CO2 are clearly extracted using EEMD.

Keywords： Methane     Carbon dioxide     Diurnal pattern     Ensemble empirical mode decomposition     South China Sea     Sea    

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Enhanced methane production during long-term UASB operation at high organic loads as enabled by the immobilized

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-021-1505-4

Abstract:

• Fungi enable the constant UASB operation even at OLR of 25.0 kg/(m3×d).

Keywords： Anaerobic digestion     Fungi     Methane production     High OLR     Microbial community    

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propionate-oxidizing microflora and its bioaugmentation on anaerobic wastewater treatment for enhancing methane

Chong Liu, Jianzheng Li, Shuo Wang, Loring Nies

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0856-8

Abstract: Methane yield and COD removal were enhanced by bioaugmentation of microflora B83.Hydrogen-producing acetogensis was a rate-limiting step in methane fermentation.Methane fermentation process can be restricted and even destroyed by the accumulation of propionate becauseTo enhance anaerobic wastewater treatment process for methane production and COD removal, a syntrophicHydrogen-producing acetogenesis appeared to be a rate-limiting step in methane fermentation, and the

Keywords： Anaerobic wastewater treatment     Methane production     Hydrogen-producing acetogenesis     Methanogenesis     Rate-limiting    

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Progress in developing an innovative lean burn catalytic turbine technology for fugitive methane mitigation

Shi SU, Xinxiang YU

Frontiers in Energy 2011, Volume 5, Issue 2,   Pages 229-235 doi: 10.1007/s11708-011-0147-9

Abstract: Approximately 2.8 × 10 m of methane is emitted per year to the atmosphere from coal mining activitiesMitigation and utilization of the fugitive coal mine methane is very difficult because its concentrationis very low and varies from 0.1% to1%, and the methane is contained in a large air flow rate of 150–overviews existing and developing technologies for the mitigation and utilization of the fugitive mine methaneThis turbine system can be powered with about 1% methane in air.

Keywords： coal mine methane     mitigation and utilization     lean burn gas turbine     catalytic combustion    

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Transient process of methane-oxygen diffusion flame-street establishment in a microchannel

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 988-999 doi: 10.1007/s11708-021-0755-y

Abstract: In the present paper, the dynamic formation process of a methane-oxygen diffusion flame-street structure

Keywords： micro-combustion     flame-street     diffusion flame     mixing layer     flame propagation speed    

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ALKALINE PRETREATMENT AND AIR MIXING FOR IMPROVEMENT OF METHANE PRODUCTION FROM ANAEROBIC CO-DIGESTION

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 3,   Pages 424-436 doi: 10.15302/J-FASE-2023506

Abstract:

● Integration of alkaline pretreatment and air mixing for co-digestion was validated.

Keywords： sodium hydroxide     air injection     cumulative methane yield     kinetic modeling analysis     digestate    

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Complete oxidation of methane on CoO-SnO catalysts

Xingfu TANG , Jiming HAO , Junhua LI ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3,   Pages 265-270 doi: 10.1007/s11783-009-0019-2

Abstract: CoO-SnO hybrid oxides were prepared by the coprecipitation method and were used to oxidate methane (CH

Keywords： Co3O4-SnO2     complete oxidation     methane (CH4)    

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Catalytic combustion of methane over a highly active and stable NiO/CeO

Xiuhui Huang, Junfeng Li, Jun Wang, Zeqiu Li, Jiayin Xu

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 4,   Pages 534-545 doi: 10.1007/s11705-019-1821-4

Abstract: In the last decades, many reports dealing with technology for the catalytic combustion of methane (CHIn this paper, a NiO/CeO catalyst with high catalytic performance in methane combustion was synthesizedthermogravimetric analysis, Fourier transform infrared spectroscopy, hydrogen temperature programmed reduction, methane

Keywords： methane combustion     NiO/CeO2 catalyst     interaction     oxygen vacancy     kinetic study    

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Cell-free systems in the new age of synthetic biology

Fernando Villarreal,Cheemeng Tan

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 1,   Pages 58-65 doi: 10.1007/s11705-017-1610-x

Abstract: The advent of synthetic biology has ushered in new applications of cell-free transcription-translationThese cell-free systems are reconstituted using cellular proteins, and are amenable to modular controlHere, we discuss the historical advancement of cell-free systems, as well as their new applications inFinally, we present our vision on the future direction of cell-free synthetic biology.

Keywords： cell-free system     application    

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Numerical and experimental analyses of methane leakage in shield tunnel

Frontiers of Structural and Civil Engineering   Pages 1011-1020 doi: 10.1007/s11709-023-0956-z

Abstract: Tunnels constructed in gas-bearing strata are affected by the potential leakage of harmful gases, such as methaneAs the airflow speed increased from 1.8 to 5.4 m/s, the methane emission was diluted, and the methaneaccumulation was only observed in the area near the methane leakage channels.In addition, laboratory tests on methane leakage through segment joints were performed.

Keywords： shield tunnel     harmful gas leakage     numerical analysis     laboratory test    

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Title Author Date Type Operation

Discussion on the Content of Coal Bed Gas Predicted by Indirect Method

Xian Xuefu,Gu Min

Journal Article

Dissolved methane in anaerobic effluent: Emission or recovery?

Journal Article

Influencing mechanism of high solid concentration on anaerobic mono-digestion of sewage sludge without agitation

Yuyao ZHANG,Huan LI,Can LIU,Yingchao CHENG

Journal Article

USING NUTRITIONAL STRATEGIES TO MITIGATE RUMINAL METHANE EMISSIONS FROM RUMINANTS

Journal Article

Acid Orange 7 degradation using methane as the sole carbon source and electron donor

Journal Article

Variation characteristics of atmospheric methane and carbon dioxide in summertime at a coastal site in

Journal Article

Enhanced methane production during long-term UASB operation at high organic loads as enabled by the immobilized

Journal Article

propionate-oxidizing microflora and its bioaugmentation on anaerobic wastewater treatment for enhancing methane

Chong Liu, Jianzheng Li, Shuo Wang, Loring Nies

Journal Article

Progress in developing an innovative lean burn catalytic turbine technology for fugitive methane mitigation

Shi SU, Xinxiang YU

Journal Article

Transient process of methane-oxygen diffusion flame-street establishment in a microchannel

Journal Article

ALKALINE PRETREATMENT AND AIR MIXING FOR IMPROVEMENT OF METHANE PRODUCTION FROM ANAEROBIC CO-DIGESTION

Journal Article

Complete oxidation of methane on CoO-SnO catalysts

Xingfu TANG , Jiming HAO , Junhua LI ,

Journal Article

Catalytic combustion of methane over a highly active and stable NiO/CeO

Xiuhui Huang, Junfeng Li, Jun Wang, Zeqiu Li, Jiayin Xu

Journal Article

Cell-free systems in the new age of synthetic biology

Fernando Villarreal,Cheemeng Tan

Journal Article

Numerical and experimental analyses of methane leakage in shield tunnel

Journal Article