磁性离子交换树脂在饮用水深度处理中的应用

摘要

示范工程配套小试,研究磁性阴离子交换树脂在饮用水深度处理领域的应用效果.结果表明:磁性树脂能高效去除砂滤出水中的有机物、硫酸根、硝酸根,树脂吸附平衡时间为30 min,树脂浓度取1.0% 为宜,对 CODMn、UV254、硫酸根、硝酸根去除率分别为60.5%、86.5%、89.1% 和54.8%;树脂示范工程出水消毒后三卤甲烷和卤乙酸浓度较常规处理削减了56.7% 和76.7%;水源水出现季节性污染时,树脂深度处理工程对有机物能保持较高的去除效果,去除率可达57.3%,树脂工程的投资成本、运行成本分别为236元/m3、0.09元/m3,磁性树脂在饮用水深度处理领域具有广泛的应用前景.%The application effect of magnetic ion exchange resin in drinking water advanced treatment was studied by underbrush experiment and advanced treatment project.The results show that:magnetic resin can effectively remove the organic material,sulfate and nitric acid,the adsorp-tion equilibrium time of resin was 30min,1.0% was chosed as the resin dose,the removal rates of CODMn,UV254,sulfate and nitrate were 60.5%,86.5%,89.1% and 54.8% respectively;The con-centration of Trihalomethanes(THMS)and Haloacetic acids(HAAS)was reduced by 56.7% and 76.7% compared with conventional treatment;the resin advanced treatment project can remove the organic materialefficiently,and the removal rate can reach 57.3%,and the investment cost and op-eration cost of resin project were 236 yuan/t and 0.09 yuan/t respectively,magnetic resins had wide application prospects in the advanced treatment of drinking w ater.