北京城市河湖水质净化组合工艺中MIEX投加方式的影响研究  

Study on the dosing method influence of MIEX for the performance of the combined process in urban rivers and lakes purification treatment

作　　者：王真[1] 廖日红[2] 申颖洁[2] 

机构地区：[1]河北工程大学城市建设学院,河北邯郸056038 [2]北京市水利科学研究所,100048

出　　处：《北京水务》2012年第1期16-19,共4页Beijing Water

基　　金：北京市自然科学基金项目(8112016);国家水体污染控制与治理科技重大专项(2009Z)

摘　　要：采用磁性离子交换树脂(MIEX)—混凝(PAC)—膜(MF)的联合工艺进行再生水回补型城市河湖地表水净化研究,考察了磁性离子交换树脂投加条件对主要污染物的去除效果。结果表明:MIEX的混合速度为500 r/min,反应时间为30 min,沉淀时间为20 min时,MIEX—PAC—膜的联合工艺对水中TP、TN、叶绿素a和浊度的去除率分别为66.67%、69.62%、76.51%和96.70%。此外,组合系统对COD、DOC和UV254等表征有机物含量的指标的去除率达到了68.00%、40.53%和58.77%,实现了对不同分子量区间内有机物的完整去除。The magnetic ion exchange resin （MIEX） -- coagulation （PAC） -- film （MF） combined process was constructed and used to treat reclaimed water resource supply-type urban rivers and lakes, the influence of magnetic ion exchange resin dosing conditions on the main pollutants removal was examined in this research. The results show that： the TP, TN, chlorophyll a and turbidity removal rates were 66.67%, 69.62%, 76.51%, 96.70% respectively on the optimal conditions of the magnetic ion exchange resin mixing speed was 500r/min, the reaction time was 30 min, precipitation time was 20 min. In addition, the removal of COD, DOC and UV254 indicators were reached 68.00%, 40.53% and 58.77%, realizing the organic matter removal of different molecular weight range.

关 键 词：磁性离子交换树脂(MIEX) 混凝(PAC) 城市河湖 

分 类 号：X52[环境科学与工程—环境工程]