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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/51892

Title: Alleviation of metal and BTEX inhibition on BTEX degradation using PVA-immobilized degrader: kinetic model of BTEX degradation.
Authors: Lin, Chi-Wen
Chih-Hung Wu
Hui-Chu Sun
Shih-Hsien Chang
Contributors: 國立臺灣海洋大學:地球科學研究所
Date: 2014-06
Issue Date: 2019-01-03T03:33:19Z
Publisher: Bioprocess and Biosystems Engineering
Abstract: Abstract: Alleviation of metal inhibition on BTEX degradation using PVA-immobilized degrader (Mycobacterium sp. CHXY119) was investigated. When BTEX of 29 mg L(-1) [B:T:E:X = 1:1:1:1 (mg)] was used, more than 99 % of BTEX was simultaneously degraded by the free cells within 170 h. In contrast, BTEX of 114-172 mg L(-1) seriously inhibited degradation. High concentrations of metals (Mn(2+): 15, Ni(2+): 10, and Zn(2+): 10 mg L(-1)) also strongly inhibited BTEX degradation by the free cells at BTEX of 29 mg L(-1). Immobilization of degraders alleviated the inhibition of BTEX and heavy metals at high concentrations. A modified non-competitive inhibition model well described the BTEX degradation by the free and immobilized cells in the absence and presence of metal ions (R (2) = 0.92-0.99). The above results provide valuable information on treatment of metal-BTEX co-contaminated wastewater by the immobilized degrader.
Relation: 37(6) pp.1085-1093
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/51892
Appears in Collections:[應用地球科學研究所] 期刊論文

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