Odor abatement in biotrickling filters: Effect of the EBRT on methyl mercaptan and hydrophobic VOCs removal

Lebrero, Raquel; Rodriguéz, Elisa; Estrada, José Daniel Rueda; García‐Encina, Pedro A.; Muñoz, Raúl

doi:10.1016/j.biortech.2012.01.052

Cited by 94 publications

(41 citation statements)

References 31 publications

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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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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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“…MT removal rate by ethanol absorption reached 80% and complied with the second class of "Emission Standards for Odour Pollutants" (GB14554-1993) when the volume fraction of the washing liquid absorption solution was 16.67% ( Figure 2). In comparison with the results of Raquel Lebrero-who found that the MT removal rate decreased to 47.8% when the EBRT was 7 s in the biotrickling filter [2]-the ethanol absorption method showed great advantages. The result was also better than that of the HNO 3 solution alone, which has a removal efficiency of 73% [16].…”

Section: Relationship Between Mt Removal Rate and Ethanol Volume Fracmentioning

confidence: 72%

“…Equations (1), (3), and (4) were substituted into Equation (2). Equation (5) was obtained as follows:…”

Section: Analysis Methodsmentioning

confidence: 99%

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Study on the Kinetics and Removal Formula of Methanethiol by Ethanol Absorption

et al. 2016

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Biological filtration is widely used for deodorising in wastewater treatment plants. This technique can efficiently remove soluble odour-causing substances, but minimally affects hydrophobic odorants, such as methanethiol (MT) and dimethyl sulfide. Ethanol absorption capacity for MT (as a representative hydrophobic odorant) was studied, and the MT removal rate formula was deduced based on the principle of physical absorption. Results indicated that the MT removal rate reached 80% when the volume ratio of ethanol/water was 1:5. The phase equilibrium constant was 0.024, and the overall mass transfer coefficient was 2.55 kmol/m 2 ·h in the deodorisation tower that functioned as the physical absorption device. Examination results showed that the formula exhibited adaptability under changing working conditions. These findings provide a reference for engineering design and operation of a process for the removal of MT by ethanol absorption.

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“…For instance, ethanethiol and dimethyl disulfide could be effectively biodegraded by a new Lysinibacillus sphaericus RG-1 and Bacillus cereus GIGAN2 (Liang et al, 2015), respectively. Further, extensive literatures were also focused on using BTF to control various odorants, such as inorganic odor H 2 S (Mannucci et al, 2012;Zhang et al, 2009), and organic odor like dimethyl sulfide, ethanethiol, dimethyl disulfide, and methanethiol (Arellano-Garcia et al, 2009;Lebrero et al, 2012;Wan et al, 2011b). However, only two papers were focused on the abatement of thioanisole-containing odorous vapors by BTF inoculated with commercialized B350 or self-isolated L. sphaericus RG-1 (Wan et al, 2011a,b).…”

Section: Introductionmentioning

confidence: 99%

Efficient bio-deodorization of thioanisole by a novel bacterium Brevibacillus borstelensis GIGAN1 immobilized onto different parking materials in twin biotrickling filter

Liang

et al. 2015

Bioresource Technology

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Odor abatement in biotrickling filters: Effect of the EBRT on methyl mercaptan and hydrophobic VOCs removal

Cited by 94 publications

References 31 publications

A hybrid biological process of indoor air treatment for toluene removal

A hybrid biological process of indoor air treatment for toluene removal

Study on the Kinetics and Removal Formula of Methanethiol by Ethanol Absorption

Efficient bio-deodorization of thioanisole by a novel bacterium Brevibacillus borstelensis GIGAN1 immobilized onto different parking materials in twin biotrickling filter

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