Biological Treatment of Waste Gases Containing Inorganic Compounds

Mohseni, Madjid

doi:10.1007/3-540-27007-8_12

Cited by 2 publications

(4 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 6b shows the pH variation of the rock wool-compost media. Genera,lly, the pH of the media decreased with operational days due to organic acids produced during the biodegradation of pollutants (Mohseni, 2005). The pH values of the media at the end of the run were 6.95, 6.34 and 6.61 for BF1, BF2, and BF3, respectively, as compared with the above 8.5 initial pH value.…”

Section: Other Biofilter Parametersmentioning

confidence: 99%

“…and Phanerochaete chrysosporium. Toluene-degraders also include Pseudomonas putida, Bacillus sp., and Scedosporium apiospermum (Mohseni, 2005;Zilli and Converti, 1999). Among the isomers of xylene, the m-and pxylene were reported to be degraded by Pseudomonas sp.…”

Section: Introductionmentioning

confidence: 99%

“…This technology is economical and simple with harmless by-products (carbon dioxide, water, and biomass) in comparison with traditional physical and chemical treatment of VOCs such as vapor scrubbing, incineration, and adsorption. In this process, the contaminated air stream simply passes through a support media with biologically active layers or biofilms where biodegradation of the pollutants takes place (Devinny et al, 1998;Mohseni, 2005). The performance of a biofilter is influenced by a number of factors such as: (i) biodegradation capability and selectivity of the microbial population; (ii) the operating conditions of the biofilter such as inlet gas flow rate, residence time, contaminant loading, temperature, cosubstrate utilization and inhibition, and nitrogen/nutrient utilization; (iii) the composition of the waste gas and their degree of biodegradability; and (iv) characteristics of packing media such as organic, inorganic, or mixture of these (Abumaizar et al, 1998;Kim et al, 2000;Sorial et al, 1997;Yoon and Park, 2002).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ethylbenzene,o-Xylene, and BTEX Removal bySphingomonas sp. D3K1 in Rock Wool-Compost Biofilters

Cho

Galera

Lorenzana

et al. 2009

Environmental Engineering Science

View full text Add to dashboard Cite

Previously isolated Sphingomonas sp. D3K1 was biofilter (BF) inoculated into composite rock wool-compost packing media and biofiltration of single gas-ethylbenzene in BF1 and o-xylene in BF2-and mixed BTEX compounds in BF3 were investigated. At 62 s EBRT and feed flow rate of 0.14 m 3 /h, high removal efficiencies of 92.0 Ϯ 2.8%, 92.0 Ϯ 3.1%, and 89.2 Ϯ 1.1% were achieved in BF1, BF2, and BF3, respectively. Decreasing the EBRT to 48 s resulted in lower elimination capacities of the three biofilters, while regular nutrient addition showed an increase in the attainable elimination capacities for ethylbenzene and o-xylene of BF1 and BF2, respectively. Maximum elimination capacities of 34.3 g-ethylbenzene/m 3 /h (BF1) and 38.6 g-o-xylene/m 3 /h (BF2) were obtained at 48 s EBRT. For BF3, the maximum elimination capacity was 32.9 g-BTEX/m 3 /h at 62 s EBRT. In the case of mixed BTEX biofilter, o-xylene showed the most significant decrease in the biodegradability when nutrient was insufficient in the system. Sphingomonas sp. D3K1 was more favorable to the removal of toluene when o-xylene was less than 10 g/m 3 /h, but shifted to benzene when the loading rate of o-xylene was higher than 10 g/m 3 /h.

show abstract

Section: Other Biofilter Parametersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ethylbenzene,o-Xylene, and BTEX Removal bySphingomonas sp. D3K1 in Rock Wool-Compost Biofilters

Cho

Galera

Lorenzana

et al. 2009

Environmental Engineering Science

View full text Add to dashboard Cite

show abstract

“…The lack of inhibition by nitrite is a great advantage because nitrite could be used instead of nitrate as an electron acceptor source. Nitrite production from ammonia requires a lower oxygen supply and thus lower energy consumption [24], although further study is required to confirm this behavior.…”

Section: Effect Of Different Nitrate Sourcesmentioning

confidence: 99%