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Anaerobic degradation of deca-brominated diphenyl ether contaminated in products: Effect of temperature on degradation characteristics

Author:
Shi, Chen, Hu, Yong, Kobayashi, Takuro, Zhang, Nan, Kuramochi, Hidetoshi, Zhang, Zhenya, Xu, Kai-Qin
Source:
Bioresource technology 2019 v.283 pp. 28-35
ISSN:
0960-8524
Subject:
bromine, pH, polybrominated diphenyl ethers, temperature
Abstract:
In this study, a 200-day deca-brominated diphenyl ether (deca-BDE) degradation activity experiment was carried out, using consumer-use curtain material as the substrate. During the degradation process, polybrominated diphenyl ether (PBDE) products with fewer bromine atoms were gradually generated by the debromination of deca-BDE. The influences of temperature, initial substrate dosing mass, and pH were also investigated. Interestingly, thermophilic conditions proved more beneficial for deca-BDE degradation than mesophilic conditions. The results also demonstrate that the debromination rate increased with the initial deca-BDE dosing mass, and that pH 7 was the most suitable for the reaction.
Agid:
6341021