Elimination of chlorobenzene vapors from air in a compost‐based biofilter

Delhoménie, Marie-Caroline; Heitz, Michèle

doi:10.1002/jctb.822

Cited by 34 publications

(20 citation statements)

References 22 publications

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“…The authors proposed that it was the diffusion of VOCs into the aqueous phase of the system that was rate-limiting to biodegradation, suggesting that systems that increase the airflow rate even further may have further increased efficiency. However converse to these observations, the compost-based biofilter tested by Delhoménie and Heitz (2003) had a gross toluene removal efficiency that was proportional not to the airflow rate, but the residence time within the biofilter column. This system was tested at relatively high VOC concentrations only.…”

Section: Phytoremediation and Horticultural Biotechnologycontrasting

confidence: 45%

Reducing Indoor Air Pollutants Through Biotechnology

Torpy

Irga

Burchett

2014

Biotechnologies and Biomimetics for Civil Engineering

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Indoor environmental quality is a growing concern, as populations become more urbanised and people spend a greater proportion of their lives indoors. Volatile organic compounds outgassing from synthetic materials and carbon dioxide from human respiration have been major indoor air quality concerns. The growing use of energy-efficient recirculating ventilation solutions has led to greater accumulation of these pollutants indoors. A range of physiochemical methods have been developed to remove contaminants from indoor air, but all methods have high maintenance costs and none reduce CO 2 , which some biological systems can achieve effectively with the additional benefit of the selfsustaining capacity of biological material. Bacteria are the major organisms involved in bioremediation of VOCs, although green plants may help sustain the bacterial community and add the capacity for CO 2 reduction to a system. The main problems faced by indoor air bioremediation systems is the extremely low concentrations of VOCs present indoors and the possibility of microbial release. Simple, passive biofiltration with potted green plants may be the simplest and most effective system for indoor air cleaning, but further research into substrate types, ventilation, and the microbiology of biodegradation processes is required to reveal their ultimate potential. Purely microbial systems have potential for the bioamelioration of high concentrations of toxic gases, but not without significant maintenance costs. Despite many years of study and substantial market demand, a proven formula for indoor air bioremediation for all applications is yet to be developed.

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Section: Phytoremediation and Horticultural Biotechnologycontrasting

confidence: 45%

Reducing Indoor Air Pollutants Through Biotechnology

Torpy

Irga

Burchett

2014

Biotechnologies and Biomimetics for Civil Engineering

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“…For example, Delhoménie and Heitz [13] used the experimental CO 2 respirometric data to determine the biomass yield coefficient associated with the degradation of chlorobenzene vapors from air in a compost-based biofilter.…”

Section: Introductionmentioning

confidence: 99%

Mathematical modeling of the biofiltration of ethyl acetate and toluene and their mixture

Álvarez‐Hornos

Gabaldón

Martínez‐Soria

et al. 2009

Biochemical Engineering Journal

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“…It is also possible that styrene is more difficult for the microorganisms to consume because of the vinyl radical attached to the aromatic ring, rather than the methyl radical attached to that of toluene. 33,34 As indicated by Hartmans 35 and observed by Delhoménie et al, 36 depends on the degree of substitution. Delhoménie et al 36 reported that an aromatic ring of six carbons substituted by one methyl (toluene) is easier to biodegrade than the same ring substituted by one chlorine atom (chlorobenzene), which was degraded 25% less than toluene when biofilters were operated under the same operating conditions.…”

Section: Comparison Of Styrene and Toluene Treatment In A Biofilter Pmentioning

confidence: 81%

Biofiltration of Air Contaminated by Styrene Vapors on Inorganic Filtering Media: An Experimental Study

St-Pierre

Ramírez

Heitz

2009

Journal of the Air & Waste Management Association

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This paper presents a study on the biofiltration of styrene by using two inorganic filtering materials. The effects of styrene inlet load and nitrogen concentration present in the nutrient solution on biofilter performance were studied. The styrene inlet concentration was varied from 65 to 1115 parts per million by volume (ppmv), whereas the contaminated airflow rate was fixed at 1 m 3 /hr. The nitrogen concentration in nutrient solution was varied from 1 to 4 gN/L. The maximum elimination capacity obtained was 105 g/m 3 -hr, which corresponded to a removal efficiency of 80% for a styrene inlet load of 130 g/m 3 -hr. This study shows that the nitrogen content in the nutrient solution affects the removal rate of styrene, with an optimal nitrogen concentration of 3 gN/L. The performance comparison between two different inorganic bed types was undertaken and a comparative study on biofiltration of two aromatic compounds, styrene and toluene, is also presented.

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Elimination of chlorobenzene vapors from air in a compost‐based biofilter

Cited by 34 publications

References 22 publications

Reducing Indoor Air Pollutants Through Biotechnology

Reducing Indoor Air Pollutants Through Biotechnology

Mathematical modeling of the biofiltration of ethyl acetate and toluene and their mixture

Biofiltration of Air Contaminated by Styrene Vapors on Inorganic Filtering Media: An Experimental Study

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