Methane Oxidation at Low Temperatures in Soil Exposed to Landfill Gas

Christophersen, Mette; Linderød, Lisbet; Jensen, Pernille Erland; Kjeldsen, Peter

doi:10.2134/jeq2000.00472425002900060036x

Cited by 95 publications

(87 citation statements)

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“…The CH 4 oxidation rate increases with increasing soil organic content (Humer and Lechner, 2001;Christophersen et al, 2000;Visvanathan et al, 1999 soil incubation tests, Christophersen et al (2000) found that soils containing more organic matter more effectively mitigate CH 4 emissions through oxidation. They also found a relationship between the optimal soil moisture content and the organic matter content.…”

Section: Soil Organic Contentmentioning

confidence: 99%

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Methane Oxidation in Landfill Cover Soils: A Review

Abushammala¹,

Basri²,

Irwan³

et al. 2014

Asian J. Atmos. Environ

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Migration of methane (CH 4 ) gas from landfills to the surrounding environment negatively affects both humankind and the environment. It is therefore essential to develop management techniques to reduce CH 4 emissions from landfills to minimize global warming and to reduce the human risks associated with CH 4 gas migration. Oxidation of CH 4 in landfill cover soil is the most important strategy for CH 4 emissions mitigation. CH 4 oxidation occurs naturally in landfill cover soils due to the abundance of methanotrophic bacteria. However, the activities of these bacteria are influenced by several controlling factors. This study attempts to review the important issues associated with the CH 4 oxidation process in landfill cover soils. The CH 4 oxidation process is highly sensitive to environmental factors and cover soil properties. The comparison of various biotic system techniques indicated that each technique has unique advantages and disadvantages, and the choice of the best technique for a specific application depends on economic constraints, treatment efficiency and landfill operations.

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Section: Soil Organic Contentmentioning

confidence: 99%

“…Four sandy soils from two landfills in Denmark were investigated in batch experiments by Christophersen et al (2000) to determine the effects of soil moisture on CH 4 oxidation. The results showed that the optimum moisture content range from 11 to 32% in all samples.…”

Section: Moisture Contentmentioning

confidence: 99%

Methane Oxidation in Landfill Cover Soils: A Review

Abushammala¹,

Basri²,

Irwan³

et al. 2014

Asian J. Atmos. Environ

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“…It has been welldocumented, however, that temperature changes typically have little effect on overall methanotrophic activity in soils, with Q 10 values typically between 1-2 (Börjesson et al, 2004;Crill, et al, 1994;King and Adamsen, 1992;Roslev et al, 1997;Whalen et al, 1990). Such low values are attributed to slow mass transfer of methane (Dunfield, 2007), although occasionally higher Q 10 values are reported in soils that may have higher gas diffusivity (Christophersen, et al, 2000;MacDonald, et al, 1997) or exposed to methane concentrations greater than 10,000 ppmv (De Visscher, et al, 2001). At temperature extremes, however, i.e., <10 ºC and >40 ºC, methane oxidation is significantly limited in forest and landfill cover soil samples Christophersen, et al, 2000;Czepial, et al, 1996;Whalen and Reeburgh, 1996), likely due to inhibition of mesophilic methanotrophs.…”

Section: Temperaturementioning

confidence: 99%

Strategies to Optimize Microbially-Mediated Mitigation of Greenhouse Gas Emissions from Landfill Cover Soils

Semrau¹,

Lee²,

Im³

et al. 2010

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The overall objective of this project, "Strategies to Optimize Microbially-Mediated Mitigation of Greenhouse Gas Emissions from Landfill Cover Soils" was to develop effective, efficient, and economic methodologies by which microbial production of nitrous oxide can be minimized while also maximizing microbial consumption of methane in landfill cover soils. A combination of laboratory and field site experiments found that the addition of nitrogen and phenylacetylene stimulated in situ methane oxidation while minimizing nitrous oxide production. Molecular analyses also indicated that methane-oxidizing bacteria may play a significant role in not only removing methane, but in nitrous oxide production as well, although the contribution of ammonia-oxidizing archaea to nitrous oxide production can not be excluded at this time. Future efforts to control both methane and nitrous oxide emissions from landfills as well as from other environments (e.g., agricultural soils) should consider these issues. Finally, a methanotrophic biofiltration system was designed and modeled for the promotion of methanotrophic activity in local methane "hotspots" such as landfills. Model results as well as economic analyses of these biofilters indicate that the use of methanotrophic biofilters for controlling methane emissions is technically feasible, and provided either the costs of biofilter construction and operation are reduced or the value of CO 2 credits is increased, can also be economically attractive. 3 TABLE OF CONTENTSABSTRACT 2 EXECUTIVE SUMMARY 6

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“…The mineral soil Q10 (Q10 is the value for how many times the oxidation rate increases when temperature is increased 10°C at temperatures below the optimum temperature) of 1.11 for CH 4 uptake indicates that methane uptake is controlled primarily by physical processes (Bowden et al, 1998). Christophersen et al (2000) showed for all the soil investigations, the oxidation rate increased with increasing temperature. Predictably, optimum temperatures were not found in this experimentation.…”

Section: Introductionmentioning

confidence: 97%

“…Effect of soil moisture: Christophersen et al (2000) showed that methane oxidation rate is a function of soil moisture content at different temperatures for the different soils. The optimum soil moisture content was different for each soil and depended on the temperature.…”

Section: Introductionmentioning

confidence: 99%

A Review on Biogas Interception Processes in Municipal Landfill

Qasaimeh¹,

Abdallah-Qasaimeh²,

Hani³

2015

J. of Environmental Science and Technology

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Biogas in landfill is being captured by natural and engineered processes. The natural processes are represented by biological activities such as bacterial methane oxidation and plant uptake for carbon dioxide at topsoil layer. Landfill gas is transported through soil layers in landfill top or in nearby areas before being released to the atmosphere. Whilst transported in the soil layers the biogas is mixed with atmospheric air and the methane may hence be oxidized by the methanotrophic bacteria in the soil using oxygen from atmosphere. Methane oxidation is affected by different environmental factors such as; temperature, water content, nutrients, substrate and oxygen concentrations. One of the ways to decrease greenhouse emissions in the future is to plant fast growing woody crops thereby sequestering carbon and displacing fossil fuels by harvesting woody biomass for bio-energy, or by storing carbon in long-lived woody products. Plant uptake for carbon dioxide is affected by some parameters such as; CO 2 concentration, nitrogen concentration, water content and temperature. The engineered processes are represented by various physical biogas extractions; gas is collected using network of collection pipes and wells. The gas collection efficiency in landfills is between 40-90%. Landfill gas can be collected by either a passive or an active collection system. Passive gas collection systems use existing variations in landfill pressure and gas concentrations to vent landfill gas into the atmosphere or a control system. Active gas collection is considered a good means of landfill gas collection. An active collection system composed of extraction wells connected to header pipe to a pump that delivers gas for energy recovery.

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Methane Oxidation at Low Temperatures in Soil Exposed to Landfill Gas

Cited by 95 publications

References 0 publications

Methane Oxidation in Landfill Cover Soils: A Review

Methane Oxidation in Landfill Cover Soils: A Review

Strategies to Optimize Microbially-Mediated Mitigation of Greenhouse Gas Emissions from Landfill Cover Soils

A Review on Biogas Interception Processes in Municipal Landfill

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