还原改性粉末活性炭的净水效果研究  

Study on purification effect of modified powdered activated carbon with reduction in water treatment

作　　者：周玉军[1] 黄廷林[2] 赵建伟[3] 何文杰[3] 韩宏大[3] 

机构地区：[1]上海宝钢工程技术有限公司,上海201900 [2]西安建筑科技大学环境与市政工程学院,陕西西安710055 [3]天津市自来水集团有限公司,天津300040

出　　处：《供水技术》2007年第3期5-7,共3页Water Technology

摘　　要：以滦河水为对象进行了还原改性PAC的中试净水效果研究。试验结果表明:改性PAC与混凝剂投加量分别为15mg/L和10mg/L时,在预氧化1处投加改性PAC对COD_(Mn)和UV254的去除率最高,分别为52.15%和38.22%,比在混合池投加时对两者的去除率均高出2%左右。于预氧化1处投加改性PAC时,其对COD_(Mn)和UV254的去除率比在相同点投加未改性PAC时分别提高5%和9%。还原改性PAC可用于处理以非极性有机物为主的高有机物污染水,提高净水效果。Make use of the source water of Luan River to investigate the purification effect of modified PAC in a pilot-scale equipment.The highest removal of COD_(Mn)and UV254 were 50% and 36% respectively when modified PAC was dosed at 10 mg/L and 15 mg/L.About 2% more removal rate of CODMn and UV254 was noticed when the modified PAC was added before coagulation than that dosed in mixing tank.Removal efficiency of COD_(Mn)and UV254 can increase 5% and 9% respectively with modified PAC than ordinary PAC when the PACs were added before coagulation.Modified PAC enables to treat water contains high concentration of non-polar organic matters and to enhance purification effect.

关 键 词：表面化学性质 还原改性 PAC 微污染水源水 中试系统 

分 类 号：TU991.24[建筑科学—市政工程]