Effects of trace volatile organic compounds on methane oxidation

Chiemchaisri, Wilai; Visvanathan, Chettiyappan; Jy, Shing Wu

doi:10.1590/s1516-89132001000200005

Cited by 19 publications

(26 citation statements)

References 15 publications

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“…Biocovers are generally spread over an entire landfill area or a specific sector while biofilters are defined as packed bed reactors, filled with a packing material and provided with gas collection and drainage systems (Scheutz et al 2009). Some studies are related to the biofiltration of CH 4 in the presence of trace gas compounds (Chan and Parkin 2000;Chiemchaisri et al 2001;Scheutz and Kjeldsen 2003, 2004bScheutz et al 2004a).…”

Section: Biofiltrationmentioning

confidence: 99%

“…Due to the high heterogeneity of biogas as previously shown, the cometabolic properties of methanotrophic bacteria was also investigated in landfill biocover soils (Chan and Parkin 2000;Chiemchaisri et al 2001;Scheutz and Kjeldsen 2003, 2004bScheutz et al 2004a). Table 2 summarizes a few studies on the co-oxidation of CH 4 and various compounds found in landfill biogas.…”

Section: Presence Of Trace Compounds: Co-metabolism and Inhibitionmentioning

confidence: 99%

“…The CH 4 -degrading bacteria, methanotrophs, have also been shown to degrade others pollutants by co-metabolism (Nelson and Jewell 1993;Hesselsoe et al 2005). Moreover, it is assumed that methanotrophs can be inhibited by xenobiotic compounds such as acetylene, trichloroethylene, or vinyl chloride (Chiemchaisri et al 2001;Scheutz et al 2004a;Maurer et al 2008). …”

Section: Introductionmentioning

confidence: 99%

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Biofiltration of methane and trace gases from landfills: A review

et al. 2012

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Concerns about biogas from landfills are reviewed in terms of biogas generation, composition, and elimination. Biogas is mainly composed of methane and carbon dioxide but it also contains a few hundred non-methane organic compounds. The solutions available to reduce its harmful effects on the environment and on human health are valorization as electricity or heat, flaring, or biofiltration. The main parameters affecting the biofiltration of methane are reviewed: temperature, moisture content, properties of the packing material, nutrient supply, oxygen requirements, formation of exopolysaccharides, and gas residence time. An analysis is performed on the co-metabolic properties and the inhibition interactions of the methane-degrading bacteria, methanotrophs.

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Section: Biofiltrationmentioning

confidence: 99%

Section: Presence Of Trace Compounds: Co-metabolism and Inhibitionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Biofiltration of methane and trace gases from landfills: A review

et al. 2012

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“…For example, volatile organic compounds (VOCs) may be present in a landfill and may affect the process of CH 4 oxidation adversely. Chiemchaisri et al (2001b) demonstrated that methanotrophic activity in an actual landfill can be affected by VOCs in LFG. Further, they found that the more the types or the higher the concentrations of VOCs present in LFG, the greater the inhibition of CH 4 oxidation.…”

Section: Interaction Between Cover Soil and Microbesmentioning

confidence: 99%

“…They are found in the ranges of 0.06-260, 0.001-20, 0.1-62, and 1.5-29 ppmv, respectively (Air Resources Board, 1989). However, the extent to which each VOC reduces the CH 4 oxidation rate is different, and Chiemchaisri et al (2001b) found that TCE and DCM causes greater inhibition of CH 4 oxidation rate than benzene or PCE.…”

Section: Effect Of Toxic Compoundsmentioning

confidence: 99%

Reduction of Methane Emission From Landfill Through Microbial Activities in Cover Soil: A Brief Review

Chiemchaisri

Kumar

et al. 2012

Critical Reviews in Environmental Science and Technology

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Scientifically designed landfill or open dumpsites are used for disposal of municipal solid waste (MSW) in many developed and developing countries. These two systems pose two environmental challenges such as generation of landfill leachate and emission of greenhouse gases (GHGs). Because the GHG emission has been considered to be a global threat, various options have been tried to mitigate the emission of GHGs, especially methane (CH 4 ). The capture and disposal of the landfill gas (LFG) emanating from landfills is technically difficult and costly. The conventional methods for reducing LFG consist of flaring or combustion with energy recovery in engines. Due to the technical difficulties and/or high cost associated with these conventional possibilities, many other alternatives are being investigated. Among these, microbial oxidation of CH 4 stands as a cost-effective candidate to minimize the GHG emission from landfills to the atmosphere. Many researchers have worked in this area and the results are encouraging. This paper is an attempt to review this candidate.

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Kinetics of simultaneous methane and toluene biofiltration in an inert packed bed

Ménard

Ramírez

Heitz

2013

J of Chemical Tech & Biotech

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BACKGROUND: Biofiltration of methane is of particular interest to contribute to limiting the greenhouse gas effect of biogas emissions from landfills. The complexity of the biogas mixture from landfills has underlined the importance of the presence of non-methane organic compounds. The aim of this study was to determine the effect of toluene on the microkinetic and macrokinetic parameters of methane biodegradation using an inorganic filter bed. RESULTS:Two concentrations of toluene were tested, 0.7 and 3.4 gC m −3 , and compared with the case of methane biofiltration alone. The specific growth rates of methane decreased from 0.793 to 0.574 to 0.278 d −1 when the toluene concentration was increased from 0 to 0.7 to 3.4 gC m −3 , respectively. The maximum elimination capacity of methane decreased from 39.4 to 5.6 gC m −3 h −1 when toluene concentration was increased from 0 to 3.4 gC m −3 . The half-saturation constants decreased from 4.6 to 1.6 gC m −3 and from 4.6 to 0.7 gC m −3 , respectively. CONCLUSIONS: Results show that an inhibition occurred on methane biodegradation when toluene was introduced into the biofilter.

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Effects of trace volatile organic compounds on methane oxidation

Abstract: ABSTRACT

Cited by 19 publications

References 15 publications

Biofiltration of methane and trace gases from landfills: A review

Biofiltration of methane and trace gases from landfills: A review

Reduction of Methane Emission From Landfill Through Microbial Activities in Cover Soil: A Brief Review

Kinetics of simultaneous methane and toluene biofiltration in an inert packed bed

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