A coupled UV photolysis-biodegradation process for the treatment of decabrominated diphenyl ethers in an aerobic novel bioslurry reactor.

ABSTRACT: The commercial flame retardant is an emerging contaminant (EC) commonly found in soils and sediments. A coupled UV-photolysis-biodegradation process was used to decompose decabromodiphenyl ether (BDE-209) in clay slurries. A novel bioslurry bioreactor (NBB) was employed in which BDE-209 degradation was maximized by the simultaneous application of LED UVA irradiation and biodegradation by a mixed bacterial culture. The rate of BDE-209 degradation decreased in the order: coupled UV photolysis-biodegradation (1.31 × 10^-2 day^-1) > UV photolysis alone (1.10 × 10^-2 day^-1) > biodegradation alone (1.00 × 10^-2 day^-1). Degradation intermediates detected included hydroxylated polybrominated diphenylethers, partially debrominated PBDE c

SUBMITTER: Chang YT 

PROVIDER: S-EPMC7521767 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature