新型好氧 W1-2 菌株降解四溴双酚 A 的性能

doi:10.12066/j.issn.1007-2861.2267

Abstract

Abstract:

A novel strain, namely W1-2, was acclimatised and isolated from aerobic activated sludge in a mineral salt medium with tetrabromobisphenol A (TBBPA). Strain W1-2 was identified as Pseudomonas sp. according to the 16S rDNA sequence. After 5 days of aerobic incubation, the degradation rate of 10 mg/L TBBPA was 91.4% at 30 ℃, pH=7, and 150 r/min. The temperature, rotation speed, pH and TBBPA concentration could influence the degradation rate, among which pH was the most influential parameter. The optimal conditions for bacterial degradation and the growth of strain W1-2 were 150 r/min, 30~35 ℃, initial TBBPA concentration of 10 mg/L, and pH=8 according to a single-factor experiment. Strain W1-2 had an excellent degradation ability at high levels of TBBPA(30 mg/L) and under micro-oxygen conditions (0 r/min) without the support of other carbon sources. This study on the degradation characteristics of strain W1-2 provides a new perspective to explore the microbial removal of TBBPA in aerobic environments.

Key words: aerobic microbial degradation, tetrabromobisphenol A (TBBPA), Pseudomonas sp., optimal parameters

CLC Number:

X703

YANG Shuxian, HU Xing. Degradation characteristics of biodegradation of tetrabromobisphenol A by the novel aerobic strain W1-2[J]. Journal of Shanghai University（Natural Science Edition）, 2022, 28(1): 57-66.

Figures/Tables 7

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References 28

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Degradation characteristics of biodegradation of tetrabromobisphenol A by the novel aerobic strain W1-2

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