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The operating performance of a biotrickling filter with Lysinibacillus fusiformis for the removal of high-loading gaseous chlorobenzene.

Li ZX, Yang BR, Jin JX, Pu YC, Ding C - Biotechnol. Lett. (2014)

Bottom Line: Removal of gaseous chlorobenzene (CB) by a biotrickling filter (BTF) filled with modified ceramics and multi-surface hollow balls during gas-liquid mass transfer at the steady state was by microbial degradation rather than dissolution in the spray liquid or emission into the atmosphere.The BTF, loaded with Lysinibacillus fusiformis, performed well for purification of high-loading CB gas.The maximum CB gas inlet loading rate, 103 g m(-3) h(-1), CB elimination capacity, 97 g m(-3) h(-1), and CB removal efficiency, 97.7 %, were reached at a spray liquid flow rate of 27.6 ml min(-1), an initial CB concentration of up to 1,300 mg m(-3), and an empty bed retention time of more than 45 s.

View Article: PubMed Central - PubMed

Affiliation: School of Chemical and Biological Engineering, Yancheng Institute of Technology, YanCheng, 224051, People's Republic of China.

ABSTRACT
Removal of gaseous chlorobenzene (CB) by a biotrickling filter (BTF) filled with modified ceramics and multi-surface hollow balls during gas-liquid mass transfer at the steady state was by microbial degradation rather than dissolution in the spray liquid or emission into the atmosphere. The BTF was flexible and resistant to the acid environment of the spray liquid, with the caveat that the spray liquid should be replaced once every 6-7 days. The BTF, loaded with Lysinibacillus fusiformis, performed well for purification of high-loading CB gas. The maximum CB gas inlet loading rate, 103 g m(-3) h(-1), CB elimination capacity, 97 g m(-3) h(-1), and CB removal efficiency, 97.7 %, were reached at a spray liquid flow rate of 27.6 ml min(-1), an initial CB concentration of up to 1,300 mg m(-3), and an empty bed retention time of more than 45 s.

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Cout, EC and RE versus ILRaCout versus ILR when Cin was varied. bCout versus ILR when the EBRT was varied. cEC versus ILR when Cin was varied. dEC versus ILR when the EBRT was varied. eRE versus ILR when Cin was varied. fRE versus ILR when the EBRT was varied Cout = chlorobenzene (CB) gas outlet concentration; EC = CB elimination capacity; RE = CB removal efficiency; ILR = CB gas inlet loading rate
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Fig8: Cout, EC and RE versus ILRaCout versus ILR when Cin was varied. bCout versus ILR when the EBRT was varied. cEC versus ILR when Cin was varied. dEC versus ILR when the EBRT was varied. eRE versus ILR when Cin was varied. fRE versus ILR when the EBRT was varied Cout = chlorobenzene (CB) gas outlet concentration; EC = CB elimination capacity; RE = CB removal efficiency; ILR = CB gas inlet loading rate

Mentions: Gas purification processes are controlled by the gas–liquid mass transfer rate and the biodegradation rate. At low pollutant loads, the biodegradation rate was larger than the mass transfer rate and therefore the process was controlled by the mass transfer rate. However, at high pollutant loads, the biodegradation rate was less than the mass transfer rate, so the process was controlled by the biodegradation rate. ILR depends on both Q and Cin. Therefore, a further investigation of the CB levels, as affected by ILR, was performed (Fig. 8).Fig. 8


The operating performance of a biotrickling filter with Lysinibacillus fusiformis for the removal of high-loading gaseous chlorobenzene.

Li ZX, Yang BR, Jin JX, Pu YC, Ding C - Biotechnol. Lett. (2014)

Cout, EC and RE versus ILRaCout versus ILR when Cin was varied. bCout versus ILR when the EBRT was varied. cEC versus ILR when Cin was varied. dEC versus ILR when the EBRT was varied. eRE versus ILR when Cin was varied. fRE versus ILR when the EBRT was varied Cout = chlorobenzene (CB) gas outlet concentration; EC = CB elimination capacity; RE = CB removal efficiency; ILR = CB gas inlet loading rate
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4150996&req=5

Fig8: Cout, EC and RE versus ILRaCout versus ILR when Cin was varied. bCout versus ILR when the EBRT was varied. cEC versus ILR when Cin was varied. dEC versus ILR when the EBRT was varied. eRE versus ILR when Cin was varied. fRE versus ILR when the EBRT was varied Cout = chlorobenzene (CB) gas outlet concentration; EC = CB elimination capacity; RE = CB removal efficiency; ILR = CB gas inlet loading rate
Mentions: Gas purification processes are controlled by the gas–liquid mass transfer rate and the biodegradation rate. At low pollutant loads, the biodegradation rate was larger than the mass transfer rate and therefore the process was controlled by the mass transfer rate. However, at high pollutant loads, the biodegradation rate was less than the mass transfer rate, so the process was controlled by the biodegradation rate. ILR depends on both Q and Cin. Therefore, a further investigation of the CB levels, as affected by ILR, was performed (Fig. 8).Fig. 8

Bottom Line: Removal of gaseous chlorobenzene (CB) by a biotrickling filter (BTF) filled with modified ceramics and multi-surface hollow balls during gas-liquid mass transfer at the steady state was by microbial degradation rather than dissolution in the spray liquid or emission into the atmosphere.The BTF, loaded with Lysinibacillus fusiformis, performed well for purification of high-loading CB gas.The maximum CB gas inlet loading rate, 103 g m(-3) h(-1), CB elimination capacity, 97 g m(-3) h(-1), and CB removal efficiency, 97.7 %, were reached at a spray liquid flow rate of 27.6 ml min(-1), an initial CB concentration of up to 1,300 mg m(-3), and an empty bed retention time of more than 45 s.

View Article: PubMed Central - PubMed

Affiliation: School of Chemical and Biological Engineering, Yancheng Institute of Technology, YanCheng, 224051, People's Republic of China.

ABSTRACT
Removal of gaseous chlorobenzene (CB) by a biotrickling filter (BTF) filled with modified ceramics and multi-surface hollow balls during gas-liquid mass transfer at the steady state was by microbial degradation rather than dissolution in the spray liquid or emission into the atmosphere. The BTF was flexible and resistant to the acid environment of the spray liquid, with the caveat that the spray liquid should be replaced once every 6-7 days. The BTF, loaded with Lysinibacillus fusiformis, performed well for purification of high-loading CB gas. The maximum CB gas inlet loading rate, 103 g m(-3) h(-1), CB elimination capacity, 97 g m(-3) h(-1), and CB removal efficiency, 97.7 %, were reached at a spray liquid flow rate of 27.6 ml min(-1), an initial CB concentration of up to 1,300 mg m(-3), and an empty bed retention time of more than 45 s.

Show MeSH
Related in: MedlinePlus