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Science of The Total Environment, 2015
Recent studies have shown that sewer systems produce and emit a significant amount of methane. Methanogens produce methane under anaerobic conditions in sewer biofilms and sediments, and the stratification of methanogens and sulfate-reducing bacteria may explain the simultaneous production of methane and sulfide in sewers.
Yiwen Liu, B. Ni, K. Sharma, Zhiguo Yuan
semanticscholar +6 more sources
Recent studies have shown that sewer systems produce and emit a significant amount of methane. Methanogens produce methane under anaerobic conditions in sewer biofilms and sediments, and the stratification of methanogens and sulfate-reducing bacteria may explain the simultaneous production of methane and sulfide in sewers.
Yiwen Liu, B. Ni, K. Sharma, Zhiguo Yuan
semanticscholar +6 more sources
Production, oxidation, emission and consumption of methane by soils: A review
European Journal of Soil Biology, 2001J. L. Mer, P. Roger
exaly +2 more sources
Prediction of methane emission from landfills using machine learning models
Environmental Progress & Sustainable Energy, 2021Modeling the methane emission is challenging due to the heterogeneity of solid waste characteristics and different chemical and physical reactions leading to methane generation.
Seyed Mostafa Mehrdad +3 more
semanticscholar +1 more source
Remote Sensing, 2010 Natural wetlands constitute a major source of methane emission to the atmosphere, accounting for approximately 32 ± 9.4% of the total methane emission.
Serwan Baban, Daniel J Bucher
exaly +3 more sources
Methane Emissions from Vehicles
Environmental Science & Technology, 2004Methane (CH4) is an important greenhouse gas emitted by vehicles. We report results of a laboratory study of methane emissions using a standard driving cycle for 30 different cars and trucks (1995-1999 model years) from four different manufacturers. We recommend the use of an average emission factor for the U.S.
E K, Nam, T E, Jensen, T J, Wallington
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Estimates of animal methane emissions
Environmental Monitoring and Assessment, 1996The enteric methane emissions into the atmospheric annually from domestic animals total about 77 Tg. Another 10 to 14 Tg are likely released from animal manure disposal systems. About 95% of global animal enteric methane is from ruminants, a consequence of their large populations, body size and appetites combined with the extensive degree of anaerobic ...
D E, Johnson, G M, Ward
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Journal of Cleaner Production, 2019
Livestock production, particularly enteric methane production, contributes to greenhouse gas emissions globally. Various mitigation strategies developed to reduce enteric emissions have limited success. Although in vitro studies have shown a considerable
B. Roque +3 more
semanticscholar +1 more source
Livestock production, particularly enteric methane production, contributes to greenhouse gas emissions globally. Various mitigation strategies developed to reduce enteric emissions have limited success. Although in vitro studies have shown a considerable
B. Roque +3 more
semanticscholar +1 more source
Geologic emissions of methane to the atmosphere
Chemosphere, 2002The atmospheric methane budget is commonly defined assuming that major sources derive from the biosphere (wetlands, rice paddies, animals, termites) and that fossil, radiocarbon-free CH4 emission is due to and mediated by anthropogenic activity (natural gas production and distribution, and coal mining).
Giuseppe, Etiope, Ronald W, Klusman
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Fuel, 2020
Currently, alternative energy sources such as hydrogen and alcohol are increasingly used in IC engines. There is a gap in the literature of both experimental and numerical studies considering hydrogen addition in a high compression ratio engine (using ...
Xudong Zhen +4 more
semanticscholar +1 more source
Currently, alternative energy sources such as hydrogen and alcohol are increasingly used in IC engines. There is a gap in the literature of both experimental and numerical studies considering hydrogen addition in a high compression ratio engine (using ...
Xudong Zhen +4 more
semanticscholar +1 more source