Biofiltration of air contaminated with toluene on a compost-based bed

Delhoménie, Marie-Caroline; Bibeau, Louise; Bredin, Nathalie; Roy, Suzanne; Broussau, Sophie; Brzeziński, Ryszard; Kugelmass, Jack; Heitz, Michèle

doi:10.1016/s1093-0191(01)00055-7

Cited by 86 publications

(43 citation statements)

References 26 publications

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“…Therefore, the decrease of the REs and slightly increase of ECs were found as the reaction limitation occurred. This result agrees with the viewpoint that the inlet concentration is a significant limiting parameter in the biotrickling filter as described in the previous references [37,38]. In addition, high inlet concentration may enhance the production of biomass, which subsequently increases the biofilm thickness, decreases the porosity of carrier material and walls up the air flow in the biotrickling filter [39].…”

Section: Removal Of Sole Vosc (Ethanethiol Dmds or Thioanisole)supporting

confidence: 92%

Co-treatment of single, binary and ternary mixture gas of ethanethiol, dimethyl disulfide and thioanisole in a biotrickling filter seeded with Lysinibacillus sphaericus RG-1

Wan

et al. 2011

Journal of Hazardous Materials

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Section: Removal Of Sole Vosc (Ethanethiol Dmds or Thioanisole)supporting

confidence: 92%

Co-treatment of single, binary and ternary mixture gas of ethanethiol, dimethyl disulfide and thioanisole in a biotrickling filter seeded with Lysinibacillus sphaericus RG-1

Wan

et al. 2011

Journal of Hazardous Materials

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“…After this change, RE ranged between 97.7% and 99.9% and desorption was no longer observable. Figure 5 shows the comparison of toluene EC versus toluene IL obtained in this study and some data close to indoor air conditions from the literature (Moe and Li, 2005;Ondarts et al, 2010a;Tang and Hwang, 1997;Abumaizar et al, 1996;Mathur et al, 2007;Oh et al, 2009;Eldon et al, 2005;Delhoménie et al, 2002;Alvarez-Hornos et al, 2008;Lebrero et al, 2012;Gallastegui et al, 2013).…”

Section: Biofilter Treatmentsupporting

confidence: 74%

A hybrid biological process of indoor air treatment for toluene removal

Hort

Platel

Sochard

et al. 2014

Journal of the Air & Waste Management Association

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Bioprocesses, such as biofiltration, are commonly used to treat industrial effluents containing volatile organic compounds (VOCs) at low concentrations. Nevertheless, the use of biofiltration for indoor air pollution (IAP) treatment requires adjustments depending on specific indoor environments. Therefore, this study focuses on the convenience of a hybrid biological process for IAP treatment. A biofiltration reactor using a green waste compost was combined with an adsorption column filled with activated carbon (AC). This system treated a toluene-micropolluted effluent (concentration between 17 and 52 µg/m 3 ), exhibiting concentration peaks close to 733 µg/m 3 for a few hours per day. High removal efficiency was obtained despite changes in toluene inlet load (from 4.2 × 10 −3 to 0.20 g/m 3 /hr), which proves the hybrid system's effectiveness. In fact, during unexpected concentration changes, the efficiency of the biofilter is greatly decreased, but the adsorption column maintains the high efficiency of the entire process (removal efficiency [RE] close to 100%). Moreover, the adsorption column after biofiltration is able to deal with the problem of the emission of particles and/or microorganisms from the biofilter.Implications: Indoor air pollution is nowadays recognized as a major environmental and health issue. This original study investigates the performance of a hybrid biological process combining a biofilter and an adsorption column for removal of indoor VOCs, specifically toluene.

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“…There was a trend of increasing elimination capacity with increasing inlet loading and then reaching a constant level, which was named as the maximum elimination capacity. The maximum elimination capacity of toluene in the low pH biofilter was 205 g/m 3 Á h according to the curve, which was higher than 55-165 g/m 3 Á h in some reported publications (Li et al, 2002;Delhoménie et al, 2002;Chang, 2003). Figure 5b shows the relationship of the H 2 S elimination capacity with the inlet loading.…”

Section: Elimination Capacitymentioning

confidence: 58%

Application of biological activated carbon as a low pH biofilter medium for gas mixture treatment

Liu

Chiaw

Ning

2006

Biotech & Bioengineering

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Packing material is a crucial component of a bioreactor as it is the microbial population's habitat. This study assessed potential improvements to current biofiltration processes by investigating use of a novel support medium. Biological activated carbon (BAC) with microorganisms growing on granular activated carbon can produce a novel medium in which both adsorption and biodegradation contribute to pollutants removal. Investigation of carbon characteristics demonstrated that BAC was an ideal packing medium for biofiltration. The application of the novel packing medium for gas mixture treatment was evaluated in a low pH biofilter. Results demonstrated that BAC biofilter obtained high removal efficiency for both H(2)S and toluene. The removal mechanisms of BAC were investigated after the biofilter operation and it demonstrated that the performance of the BAC system was mainly controlled by the additive contributions of two removal mechanisms - adsorption and biodegradation. This study also indicated the potential for simultaneous treatment of hydrogen sulfide and toluene at low pH condition.

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Biofiltration of air contaminated with toluene on a compost-based bed

Cited by 86 publications

References 26 publications

Co-treatment of single, binary and ternary mixture gas of ethanethiol, dimethyl disulfide and thioanisole in a biotrickling filter seeded with Lysinibacillus sphaericus RG-1

Co-treatment of single, binary and ternary mixture gas of ethanethiol, dimethyl disulfide and thioanisole in a biotrickling filter seeded with Lysinibacillus sphaericus RG-1

A hybrid biological process of indoor air treatment for toluene removal

Application of biological activated carbon as a low pH biofilter medium for gas mixture treatment

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