Empirical model for methane oxidation using a composted pine bark biofilter⋆

Plessis, Chris A. du; Strauss, J. M.; Sebapalo, Elijah M.T; Riedel, K. J.

doi:10.1016/s0016-2361(03)00040-1

Cited by 62 publications

(41 citation statements)

References 18 publications

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“…The linear relationship that is shown in Figure 5.4, with a k value of 2.5 hour -1 , indicates that indeed first-order kinetics occur. This k value corresponds to the range from 0.3 to 6.6 hour -1 that can be calculated from the data of other studies at logarithmic mean methane concentrations from 0.4 to 22 g m -3 (Sly et al, 1993;Du Plessis et al, 2003;Streese and Stegmann, 2003). Finally, the methane elimination capacity that was observed, at an average air inlet temperature of 12°C, may significantly increase if the biofilter is operated at a higher temperature.…”

Section: Influence Of Concentration and Air Flow On Methane Removalmentioning

confidence: 65%

“…Although most recent literature (Devinny et al, 1999;Kennes et al, 2001) suggests that bioreactors are only cost-effective up to pollutant concentrations of 5 to 10 g m -3 , for landfill-gas treatment biofilters have been developed and operated at various methane inlet concentrations up to 260 g m -3 (40% v/v) at empty bed air residence times (EBRT's) between 5 minutes and 5 hours (Figueroa, 1996;Kussmaul and Gebert, 1998;Dammann et al, 1999;Straka et al, 1999;Scharff et al, 2001;Park et al, 2002;Gebert et al, 2003;Streese and Stegmann, 2003;Park et al, 2004), whereas typical EBRT's are 25 seconds to over a minute for common biofilter applications (Devinny et al, 1999). Also some papers were published on biofiltration of coalmine atmospheres that are usually controlled at a methane content of 1 to 10 g m -3 (Apel et al, 1991;Sly et al, 1993;Du Plessis et al, 2003). An alternative technology for removal of high pollutant concentrations, such as activated carbon adsorption, is not suitable for treatment of methane containing air because of the low methane affinity for adsorbents.…”

Section: Introductionmentioning

confidence: 99%

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Air Treatment Techniques for Abatement of Emissions from Intensive Livestock Production

Melse¹,

Ogink²,

Rulkens³

2009

TOASJ

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Intensive livestock production is connected with a number of environmental effects, including emissions of ammonia (NH 3 ), greenhouse gases (CH 4 and N 2 O), odour, and particulate matter (PM10 and PM2.5). Possible strategies for emission reduction from animal houses include feed management, adaptation of housing design, and the application of end-of-pipe air treatment, viz acid scrubbers and bioscrubbers. In order to comply with current and future regulations the implementation of air scrubbers is expected to expand in intensive livestock production areas across Europe. The aim of this thesis is to better understand and improve the performance of air scrubber systems in livestock operations. The objectives are to determine (1) how air scrubbers are performing at livestock farms with regard to ammonia and odour removal; (2) how the cost-efficiency of air scrubbers can be increased by applying a different treatment strategy; (3) if methane can be removed by biological air treatment systems; and (4) to discuss the drawbacks of current air scrubbing practices and make recommendations for improvement.It was found that ammonia removal efficiency by scrubbers is relatively high (on average 96% for acid scrubbers and 70% for bioscrubbers), that odour removal is relatively low (on average 31% for acid scrubbers and 44% for bioscrubbers), and that especially bioscrubbers often show a large variation in odour removal efficiency. Furthermore, it was found that bioscrubbers often experience operational problems. Next a partial air cleaning approach has been presented in which air is bypassed at occasionally occurring high air flow rates. Model calculations show that a reduction of scrubber volume by 50% still enables treatment of 80 -90% of the ammonia load. This strategy reduces investment and operational costs but hardly affects average ammonia emission levels. Furthermore, it was demonstrated that biological oxidation of methane is possible, although the low water solubility of methane limits the practical application of biofilters or bioscrubbers for methane removal. Finally, it is concluded that scrubbers applied at animal houses can still be improved and optimized. For example the process control and performance of bioscrubbers might be enhanced by measurement of electrical conductivity (EC) as a control parameter for water discharge.

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Section: Influence Of Concentration and Air Flow On Methane Removalmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%

Air Treatment Techniques for Abatement of Emissions from Intensive Livestock Production

Melse¹,

Ogink²,

Rulkens³

2009

TOASJ

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“…Chris A et al, scholars in Australia, sprayed methanotroph fluids into goaf so that the oxidation and biological filter layer was formed to degrade gases in goaf. By doing so, the methane content in gases emitted from goaf was decreased and further certain achievements were obtained [40] . Researches revealed that the removal rate of a kind of methanotroph on methane under having gases is up to 99% and that still remains 97% after 7 days [41] .…”

Section: Research Advancementmentioning

confidence: 97%

Ecological Distribution and Application Research Status of Methanotroph B Ased on Gas Control of Coal Mines

Wu¹,

Zhang²,

Zhang³

et al. 2017

Topics in Civil, Environmental &Amp; Building Engineering (TICEBE)

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Gas disaster is considered as a severe problem faced by underground mines. It is seen as a feasible technological means to degrade gases in coal mines by using methanotroph, which is although subjected to a primary research stage in application. Researchers sampled, cultured and identified multiple effective methanotrophs in conventional and extreme natural environments as well as production environment of coal mines. However, the majority of methanotroph is aerobic while minority of them is anaerobic. The designed experimental conditions and scales in the research significantly differed from the actual conditions of coal seams so that it is hard to apply the research on site. This study analyzed the major problems of current researches and put forward the requirement in environmental conditions: the actual conditions of gases of coal mines are fully taken into consideration in the future researches. Moreover, the study pointed out that the extraction environment and cultured conditions of effective methanotroph and is expected to concentrate on improving research efficiency and application value.

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“…Based on their global contribution to the greenhouse effect, the most important greenhouse gases are CO 2 (70%) and CH 4 (23%). CH 4 has an average global warming potential 23 times higher than that of CO 2 and its atmospheric concentration is increasing twice as fast as that of CO 2 . Therefore, the reduction of CH 4 emissions requires special attention.…”

Section: Introductionmentioning

confidence: 99%

Methane biodegradation in a two‐phase partition internal loop airlift reactor with gas recirculation

Rocha-Ríos

Quijano

Thalasso

et al. 2010

J of Chemical Tech & Biotech

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Empirical model for methane oxidation using a composted pine bark biofilter⋆

Cited by 62 publications

References 18 publications

Air Treatment Techniques for Abatement of Emissions from Intensive Livestock Production

Air Treatment Techniques for Abatement of Emissions from Intensive Livestock Production

Ecological Distribution and Application Research Status of Methanotroph B Ased on Gas Control of Coal Mines

Methane biodegradation in a two‐phase partition internal loop airlift reactor with gas recirculation

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