title: [Biological reduction of perchlorate and optimization].
abstract: The potential of bioremediation to treat perchlorate-contaminated water by acclimating anaerobic activated sludge was investigated in this study. Factors such as carbon source, initial pH, temperature, domesticated sludge concentration and dissolved oxygen affecting the removal of perchlorate were studied in detail by shaking-bottle point tests using acetate as carbon source. Results showed that 50 mg/L perchlorate was completely reduced by 1.0 g of domesticated sludge added with 1.2 g/L of acetate under the conditions of 35 degrees C and initial pH 8.0. Dissolved oxygen in the system would restrain the reduction of perchlorate. In addition, column bioreactor was used to treat perchlorate continuously, with the minimum residence time of 6 h.
authors: Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China. huijingqian@163.com
authors: Hui-Jing
authors: HJ
authors: Qian
authors: Sheng-Lan
authors: SL
authors: Xi
authors: Ping
authors: P
authors: He
authors: Xin-Hua
authors: XH
authors: Xu
mesh_terms: D001419:Bacteria / Q000378:metabolism; D001673:Biodegradation, Environmental; D019149:Bioreactors / Q000382:microbiology*; D010472:Perchlorates / Q000302:isolation & purification*; D014865:Waste Disposal, Fluid / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods*
chemical_list: D010472:Perchlorates; D014874:Water Pollutants, Chemical; C494474:perchlorate