磁性离子交换树脂(MIEX~)去除原水中有机物的试验  

Removal of Organic Matter in Raw Water by Magnetic Ion Exchange(MIEX~) Resin

作　　者：董晓晨[1] 阮春蓉 陈子华 刘洪波[2] Dong Xiaochen;Ruan Chunrong;Chen Zihua;Liu Hongbo(Suzhou Industrial Park Qingyuan ＆ Hongkong China Water Co.,Ltd.,Suzhou 215021,China;School of Environment and Architecture,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]苏州工业园区清源华衍水务有限公司,江苏苏州215021 [2]上海理工大学环境与建筑学院,上海200093

出　　处：《净水技术》2018年第9期15-18,31,共5页Water Purification Technology

基　　金：国家自然科学基金资助项目(21206092);水处理技术研究以及相关领域虚拟合作平台创建协议资助项目(201608);饮用水消毒副产物及嗅味控制技术研究(201608-1)

摘　　要：太湖和阳澄湖是长三角地区两个较大的饮用水源地。文中选取COD_(Mn)和UV_(254)两个评价指标,考察磁性离子交换树脂(MIEX~)+聚合氯化铝(PAC)混凝的组合处理方法与单独PAC混凝在不同的通水倍率、PAC投加量条件下对太湖和阳澄湖水源水中有机物的去除效果。结果表明:与单独PAC混凝处理相比,经MIEX~+PAC混凝组合处理后,出水水质明显提高,混凝剂投加量降低75%;太湖原水COD_(Mn)去除率提高了21%,达到35%～40%,产水COD_(Mn)小于2.53 mg/L;阳澄湖原水COD_(Mn)去除率提高了14%,达到25%～30%,产水COD_(Mn)小于2.92 mg/L。MIEX~+PAC混凝组合处理方法提高了COD_(Mn)、UV_(254)的去除效率,提升了饮用水原水水质,在保障饮用水水质安全的同时,大幅降低了饮用水处理过程中混凝剂的使用量,节约了饮用水处理的成本,在水处理行业具有十分广阔的前景。Taihu Lake and Yangehenghu Lake are two large drinking water sources in the Yangtze River delta. CODMn and UV254 were chosen to evaluate the removal efficiency of organic matter by MIEX＋ PAC process and single PAC coagulation process, respectively, under different bed volume treatment rates （BVTR） and PAC dosages. The results showed that compared with the single PAC coagulation process, water quality of the effluent was improved and the dosage of PAC was decreased by 75% using MIEX＋ PAC process ; CODMn in effluent of Taihu Lake was less than 2. 53 mg/L and its removal rate was increased by 21%, reaching 35% -40% ; CODMn in effluent of Yangchenghu Lake was less than 2. 92 mg/L and its removal rate was increased by 14%, reaching 25% -30%. The MIEX ＋ PAC coagulation process elevates the removal rate of CODMn and UV254 in effluent and assures the safety of drinking water. At the same time, it also decreases the dosage of PAC and reduces the cost of drinking water treatment. Therefore, the MIEX＋ PAC coagulation process is a promising process for drinking water treatment in the future.

关 键 词：原水 磁性离子交换树脂 有机物去除 CODMN UV254 

分 类 号：TU991.11[建筑科学—市政工程]