Results 21 to 30 of about 26,054 (150)

Atmospheric methane removal by boreal plants [PDF]

open access: yesGeophysical Research Letters, 2012
Several studies have proposed aerobic methane (CH4) emissions by plants. If confirmed, these findings would further increase the imbalance in the global CH4 budget which today underestimates CH4sinks. Oxidation by OH‐radicals in the troposphere is the major identified sink followed by smaller contribution from stratospheric loss and oxidation by ...
Elin Sundqvist   +4 more
openaire   +1 more source

Model-based investigation of membrane biofilm reactors coupling anammox with nitrite/nitrate-dependent anaerobic methane oxidation

open access: yesEnvironment International, 2020
An innovative process coupling anaerobic ammonium oxidation (anammox) with nitrite/nitrate-dependent anaerobic methane oxidation (n-DAMO) in membrane biofilm reactors (MBfRs) has been developed to achieve high-level nitrogen removal from both sidestream (
Tao Liu   +3 more
doaj   +1 more source

A high efficiency gas phase photoreactor for eradication of methane from low-concentration sources

open access: yesEnvironmental Research Letters, 2023
Despite the urgent need, very few methods are able to efficiently remove methane from waste air with low cost and energy per unit volume, especially at the low concentrations found in emissions from e.g. wastewater treatment, livestock production, biogas
Morten Krogsbøll   +2 more
doaj   +1 more source

Kinetics analysis of spiral automatic circulation anaerobic reactor

open access: yes浙江大学学报. 农业与生命科学版, 2009
The kinetic characteristics of spiral automatic circulation (SPAC) anaerobic reactor were investigated. Base on material balance, the relationship between the volumetric removal rate and the effluent concentration was established and analyzed by the ...
WANG Cai-hua   +4 more
doaj   +1 more source

The Effect of Mixing Rate on Performance of Anaerobic Reactor in Methane Production [PDF]

open access: yesIranica Journal of Energy and Environment, 2021
In this study, a mathematical model was used to predict the dynamic behaviour of the system under conditions of imperfect mixing in an Anaerobic Digestion (AD) process.
M. E. Kashfi, R. Kouhikamali, G. Khayati
doaj   +1 more source

Is the destruction or removal of atmospheric methane a worthwhile option? [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2021
Removing methane from the air is possible, but do the costs outweigh the benefits? This note explores the question of whether removing methane from the atmosphere is justifiable. Destruction of methane by oxidation to CO 2 eliminates 97% of the warming impact on a 100-yr time scale.
Peter B. R. Nisbet-Jones   +7 more
openaire   +3 more sources

Coal-packed methane biofilter for mitigation of green house gas emissions from coal mine ventilation air. [PDF]

open access: yesPLoS ONE, 2014
Methane emitted by coal mine ventilation air (MVA) is a significant greenhouse gas. A mitigation strategy is the oxidation of methane to carbon dioxide, which is approximately twenty-one times less effective at global warming than methane on a mass-basis.
Hendy Limbri   +5 more
doaj   +1 more source

Microbial removal of halogenated methanes, ethanes, and ethylenes in an aerobic soil exposed to methane [PDF]

open access: yesFEMS Microbiology Letters, 1988
Contamination of ground water with halogenated aliphatic hydrocarbons threatens this source of drinking water. In order to study microbial processes that may enhance the removal of these compounds, Lincoln fine sand was exposed to an atmosphere containing methane (4%) to enrich microorganisms capable of growth on this gaseous hydrocarbon.
J. Michael Henson   +3 more
openaire   +2 more sources

A Case Study of an Optimized Intermittent Ventilation Strategy Based on CFD Modeling and the Concept of FCT

open access: yesEnergies, 2019
With the increasing operation costs and implementation of carbon tax in the underground coal mining systems, a cost-effective ventilation system with well methane removal efficiency becomes highly required.
Hui Liu, Shanjun Mao, Mei Li
doaj   +1 more source

Characteristics of Biogas Production from Organic Wastes Mixed at Optimal Ratios in an Anaerobic Co-Digestion Reactor

open access: yesEnergies, 2021
This study determined the optimal mixing ratio of food waste and livestock manure for efficient co-digestion of sewage sludge by applying the biochemical methane potential (BMP) test, Design Expert software, and continuous reactor operation. The BMP test
Young-Ju Song   +5 more
doaj   +1 more source

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