Performance of a Pilot-Scale Compost Biofilter Treating Gasoline Vapor

Wright, William F.; Schroeder, Edward D.; Chang, Dan; Romstad, Keith

doi:10.1061/(asce)0733-9372(1997)123:6(547)

Cited by 59 publications

(47 citation statements)

References 4 publications

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“…A six times-faster biofiltration start-up of volatile organic solvents can be achieved through inoculation with adapted microorganisms (Saake and Hübner, 1989). Wright et al found that acclimation in compost biofilters is faster in treating gasoline vapors when the biofilters are inoculated with culture grown on gasoline (Wright et al, 1997). Leson and Smith reached a similar conclusion, suggesting that inoculation hastens acclimation but does not affect the ultimate removal efficiency (Leson and Smith, 1997).…”

Section: Introductionsupporting

confidence: 57%

Temporal variation of microbial population in acclimation and start-up period of a thermophilic desulfurization biofilter

Zhang

Liu

et al. 2016

International Biodeterioration & Biodegradation

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a b s t r a c tMicroorganisms in a biofilter play important roles in the gas contaminants treatment process. In this study, thermophilic desulfurization bacteria were inoculated in a thermophilic biofilter for SO 2 treatment after acclimation and enrichment. Molecular biology techniques were applied to detect temporal variation of microbial population during acclimation and biofilter start-up period. The acclimation temperatures were 50, 55, and 60 C. Desulfurization bacteria dominated the enrichments. During acclimation, desulfurization bacteria and thermophilic bacteria increased from 36.84% to 78.95%e52.94% and 88.24%, respectively. In addition, the microbial diversity indices of these enrichments decreased with time. Substrate species and acclimation temperature influenced the microbial structure of the enrichments. The thermophilic biofilter inoculated with enrichments could achieve a rapid start-up, and over 80% of removal efficiency could be obtained within two weeks. The maximum elimination capacity was 38.71 g m À3 h À1 at 152 mg m À3 inlet concentration. The total sulfur bacteria proportion increased obviously during the start-up period. Moreover, desulfurization bacteria that originally existed in inocula, e.g., Pseudomonas putida, Bacillus thioparans, Microbacterium sp., and Thermoanaerobacteriaceae, were abundant in the thermophilic biofilter for SO 2 removal.

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Section: Introductionsupporting

confidence: 57%

Temporal variation of microbial population in acclimation and start-up period of a thermophilic desulfurization biofilter

Zhang

Liu

et al. 2016

International Biodeterioration & Biodegradation

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“…Les capacités de cette souche pourraient être explorées dans les procédés d'épuration utilisant des réacteurs de type biofiltre qui permettent, dans le cas de l'essence, une bonne dégradation de nombreux hydrocarbures mais non des alcanes branchés (Ropars, communication personnelle) ou des alcanes alicycliques (Wright et al, 1997).…”

Section: Resultsunclassified

Biodégradabilité de l'essence dans l'environnement : de l'évaluation globale au cas des hydrocarbures récalcitrants

Solano-Serena

Marchal

Vandecasteele

2001

Oil & Gas Science and Technology - Rev. IFP

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“…Yet only a few papers on the biofiltration of gasoline and other diverse hydrocarbon mixtures are available (Leson and Smith, 1997;Barton et al, 1997;Wright et al, 1997;Morales et al, 1998;Namkoong and Park, 2003;Namkoong and Park, 2004;Paca et al, 2007). Even fewer studies have tackled the interactions of aliphatic and more biodegradable aromatic compounds in their mixtures (Schindler and Friedl, 1995;Holubar et al, 1999;Lu et al, 2001;Kim, 2003;Hassan and Sorial, 2010;Halecky et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Biofiltration of gasoline and diesel aliphatic hydrocarbons

Halecky

Rousova

Páca

et al. 2015

Journal of the Air & Waste Management Association

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The ability of a biofilm to switch between the mixtures of mostly aromatic and aliphatic hydrocarbons was investigated to assess biofiltration efficiency and potential substrate interactions. A switch from gasoline, which consisted of both aliphatic and aromatic hydrocarbons, to a mixture of volatile diesel n-alkanes resulted in a significant increase in biofiltration efficiency, despite the lack of readily biodegradable aromatic hydrocarbons in the diesel mixture. This improved biofilter performance was shown to be the result of the presence of larger size (C 9 -C 12 ) linear alkanes in diesel, which turned out to be more degradable than their shorter-chain (C 6 -C 8 ) homologues in gasoline. The evidence obtained from both biofiltration-based and independent microbiological tests indicated that the rate was limited by biochemical reactions, with the inhibition of shorter chain alkane biodegradation by their larger size homologues as corroborated by a significant substrate specialization along the biofilter bed. These observations were explained by the lack of specific enzymes designed for the oxidation of short-chain alkanes as opposed to their longer carbon chain homologues.Implications: Biological removal of petroleum hydrocarbons from contaminated air has not become a widely used technology due to its low efficiency. This paper presents the analysis of this problem using bench-scale experiments and provides several reasons for the low biodegradation efficiency of gasoline. The results reported suggest that gasoline removal efficiency strongly depends on the substrate composition, with aromatic hydrocarbons being removed preferentially. The study also opens up a new perspective for the efficient biofiltration of diesel hydrocarbons as opposed to gasoline, as higher molecular weight n-alkanes of diesel were removed readily. By contrast, low-molecular-weight n-alkanes of gasoline turned out to be poor substrates for biofiltration, and the biological reasons for this phenomenon were suggested.

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Performance of a Pilot-Scale Compost Biofilter Treating Gasoline Vapor

Cited by 59 publications

References 4 publications

Temporal variation of microbial population in acclimation and start-up period of a thermophilic desulfurization biofilter

Temporal variation of microbial population in acclimation and start-up period of a thermophilic desulfurization biofilter

Biodégradabilité de l'essence dans l'environnement : de l'évaluation globale au cas des hydrocarbures récalcitrants

Biofiltration of gasoline and diesel aliphatic hydrocarbons

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