Jin Wang, Ting Huang, Xue-qin Tao
2019
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Influential Citations
3
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Journal
DESALINATION AND WATER TREATMENT
Abstract
2,2′,4,4′-Tetrabromodiphenyl ether (BDE-47) is a highly toxic polybrominated flame retardant, which causes severe pollution to the environment. In this work, a novel strain of aerobic bacteria Achromobacter xylosoxidans (GYP4) was screened out to degrade BDE-47. GYP4 was isolated from polluted paddy soil near an electronic-waste recycling plant. Experimental results showed that GYP4 could degrade BDE47 as a single carbon source. The degradation rate of GYP4 for 1.0 mg L−1 BDE-47 solution was 90.8% within 4 d. GYP4 exhibited the highest degradation efficiency at temperature of 25.0°C–35.0°C and pH of 3.0–7.0. Three hydroxylated polybrominated diphenyl ethers were detected in the biodegradation process. Therefore, hydroxylation reaction was considered to be the main reaction in the metabolism pathway of BDE-47 degraded by GYP4.