TY - JOUR
T1 - Effect of substrate interaction on the degradation of methyl tert-butyl ether, benzene, toluene, ethylbenzene, and xylene by Rhodococcus sp
AU - Lee, Eun Hee
AU - Cho, Kyung Suk
N1 - Funding Information:
This work was financially supported by the Korea Science and Engineering Foundation through the Advanced Environmental Biotechnology Research Center at Pohang University of Science and Technology (R11-2003-006-06001-0), and the KOSEF NRL Program grant funded by the Korea government (MEST) (R0A-2008-000-20044-0).
PY - 2009/8/15
Y1 - 2009/8/15
N2 - It was examined the substrate interactions of benzene (B), tolulene (T), ethylbenzene (E), xylene (X), and methyl tert-butyl ether (M) in binary, ternary, quaternary, and quinary mixtures by Rhodococcus sp. EH831 that could aerobically degrade all of five single components. The specific degradation rates (SDRs) of B, T, E, X, and M were 234, 913, 131, 184 and 139 μmol g-dry cell weight (DCW)-1 h-1, respectively. In binary, ternary, quaternary, and quinary mixtures of them, ethylbenzene was the strongest inhibitor for the other substrates, and methyl tert-butyl ether was the weakest inhibitor. Interestingly, no degradation of benzene and methyl tert-butyl ether was found in the coexistence of ethylbenzene. The degradation of benzene followed only after toluene became exhausted when both was present. Ethylbenzene was least inhibited by methyl tert-butyl ether and most inhibited by toluene.
AB - It was examined the substrate interactions of benzene (B), tolulene (T), ethylbenzene (E), xylene (X), and methyl tert-butyl ether (M) in binary, ternary, quaternary, and quinary mixtures by Rhodococcus sp. EH831 that could aerobically degrade all of five single components. The specific degradation rates (SDRs) of B, T, E, X, and M were 234, 913, 131, 184 and 139 μmol g-dry cell weight (DCW)-1 h-1, respectively. In binary, ternary, quaternary, and quinary mixtures of them, ethylbenzene was the strongest inhibitor for the other substrates, and methyl tert-butyl ether was the weakest inhibitor. Interestingly, no degradation of benzene and methyl tert-butyl ether was found in the coexistence of ethylbenzene. The degradation of benzene followed only after toluene became exhausted when both was present. Ethylbenzene was least inhibited by methyl tert-butyl ether and most inhibited by toluene.
KW - Biodegradation
KW - BTEX
KW - Interaction
KW - MTBE
KW - Rhodococcus sp
UR - http://www.scopus.com/inward/record.url?scp=66149192095&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2009.01.035
DO - 10.1016/j.jhazmat.2009.01.035
M3 - Article
C2 - 19201538
AN - SCOPUS:66149192095
SN - 0304-3894
VL - 167
SP - 669
EP - 674
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
IS - 1-3
ER -