title: Removal of bromide and bromate from drinking water using granular activated carbon.
abstract: Granular activated carbon (GAC) was used to remove bromide (Br⁻) and bromate (BrO(3)(-)) from drinking water in both bench- and pilot-scale experiments. The present study aims to minimize BrO(3)(-) formation and eliminate BrO(3)(-) generated during the ozonation of drinking water, particularly in packaged drinking water. Results show that the Br⁻ and BrO(3)(-) levels in GAC-treated water decreased in both bench- and pilot-scale experiments. In the bench-scale experiments, when the empty bed contact time (EBCT) was 5 min, the highest reduction rates of Br(-) in the mineral and ultrapure water were found to be 74.9% and 91.2%, respectively, and those of BrO(3)(-) were 94.4% and 98.8%, respectively. The GAC capacity for Br⁻ and BrO(3)(-) removal increased with the increase in EBCT. Reduction efficiency was better in ultrapure water than in mineral water. In the pilot-scale experiments, the minimum reduction rates of Br⁻ and BrO(3)(-) were 38.5% and 73.2%, respectively.
authors.affiliation: Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, State Key Laboratory of Applied Microbiology (Ministry-Guangdong Province Jointly Breeding Base), South China, Guangdong Institute of Microbiology, 510070 Guangzhou, China E-mail: wuqp203@163.com; College of Food and Biological Engineering, Xuchang University, 461000 Xuchang, China.
authors.forename: Yong-Qing
authors.initials: YQ
authors.lastname: Zhang
authors.affiliation: Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, State Key Laboratory of Applied Microbiology (Ministry-Guangdong Province Jointly Breeding Base), South China, Guangdong Institute of Microbiology, 510070 Guangzhou, China E-mail: wuqp203@163.com.
authors.forename: Qing-Ping
authors.initials: QP
authors.lastname: Wu
authors.affiliation: Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, State Key Laboratory of Applied Microbiology (Ministry-Guangdong Province Jointly Breeding Base), South China, Guangdong Institute of Microbiology, 510070 Guangzhou, China E-mail: wuqp203@163.com.
authors.forename: Ju-Mei
authors.initials: JM
authors.lastname: Zhang
authors.affiliation: Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, State Key Laboratory of Applied Microbiology (Ministry-Guangdong Province Jointly Breeding Base), South China, Guangdong Institute of Microbiology, 510070 Guangzhou, China E-mail: wuqp203@163.com.
authors.forename: Xiu-Hua
authors.initials: XH
authors.lastname: Yang
mesh_terms: D000327:Adsorption; D001959:Bromates / Q000737:chemistry*; D001965:Bromides / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry*; D060766:Drinking Water; D008900:Mineral Waters; D010865:Pilot Projects; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000379:methods*
chemical_list: D001959:Bromates; D001965:Bromides; D060766:Drinking Water; D008900:Mineral Waters; D014874:Water Pollutants, Chemical; D002244:Carbon