Removal of Bromate by Ferrous Sulfate Reduction in Drinking Water
Removal of bromate by ferrous sulfate reduction was studied using water plant filter effluent spiked with bromate. Effects of FeSO4 dosage, reaction time, pH and DO concentration on bromate reduction were investigated. Removal of residue total iron by GAC was also studied. Results showed that, when initial bromate concentration is about 25μg/L, pH is 7.2, DO concentration is 2.3mg/L, temperature is (25±1)℃, the concentration of bromate can be reduced to 8.6μg/L at FeSO4 dosage of 20mg/L, which is satisfying with the water quality standard. The GAC filter has a high effect on the total irons removal. The concentration of total iron can be reduced from 7.4mg/L to less than 0.3mg/L by 1m high GAC filter column with a EBCT of 20min.
bromate ferrous sulfate residue iron GAC filter chemical reduction
Zi-jun DONG Wen-yi DONG Xiao-min ZHANG Xiao-hai YU Yang-feng OU Hong DU
Harbin Institute of Technology Shenzhen Graduate SchoolShenzhen,China,518055 Harbin Institute of Technology Shenzhen Graduate School Shenzhen,China,518055 Shenzhen Water Group Shenzhen,China,518055
国际会议
北京
英文
1-4
2009-06-11（万方平台首次上网日期，不代表论文的发表时间）