磁性离子交换树脂的制备及其在城市污水处理中的应用  

Preparation of Magnetic Ion Exchange Resin and Its Application in Municipal Wastewater Treatment

作　　者：于鹏飞 赵宗祺 徐晓飞 汤杰 戚玉磊 汪剑 YUPeng-fei;ZHAO Zong-qi;XVXiao-fei;TANG Ji;QI Yu-lei;WANG Jian(Qingdao Administrative Service and Public Resources Trading Center,Qingdao Shandong 266032,China;Qingdao Haibohe Waste Water Treatment Plant,Qingdao Shandong 266000,China;Laoshan Bureau of Agriculture and Rural Affairs,Qingdao Shandong 266000,China;Qingdao Water Conservancy Survey and Design Institute Co.,Ltd.,Qingdao Shandong 266000.China;Qingdao Water Development Service Center,Qingdao Shandong 266000,China;Qingdao Drainage Operation Service Center,Qingdao Shand ong 266032,China)

机构地区：[1]青岛市政务服务和公共资源交易中心,山东青岛266032 [2]青岛市海泊河污水处理厂,山东青岛266000 [3]崂山区农业农村局,山东青岛266000 [4]青岛市水利勘测设计研究院有限公司,山东青岛266000 [5]青岛市水务事业发展服务中心,山东青岛266000 [6]青岛市排水运营服务中心,山东青岛266032

出　　处：《当代化工》2022年第5期1148-1151,共4页Contemporary Chemical Industry

基　　金：山东省重大科技创新工程项目,面向绿色化工的均相离子交换膜技术(项目编号:2019JZZY010511)。

摘　　要：针对城市污水经过生化处理后出水水质状况较差的问题,以离子交换树脂为主要原料,通过引入磁性粒子,制备了一种新型磁性离子交换树脂MCR-1,并评价了其对城市污水的处理效果。结果表明:城市污水经过磁性离子交换树脂MCR-1吸附处理后的COD值、色度值、总氮值和总磷值均明显降低,水质指标得到明显改善,其最佳工艺参数为:磁性离子交换树脂MCR-1的加量为2.5%,反应时间为30min,污水初始p H值为8。在此工艺参数下出水水质可以达到最佳,COD值可以降低至17.6mg·L^(-1),色度值降低至5,总氮值降低至8.5 mg·L^(-1),总磷值降低至0.2 mg·L^(-1)。将磁性离子交换树脂MCR-1吸附与混凝处理相结合能够进一步地降低城市污水中各项污染物的含量,混凝剂SPFS的加入可以有效提高磁性树脂的吸附处理效率。In view of the poor effluent quality of urban sewage after biochemical treatment, a new magnetic ion exchange resin MCR-1 was prepared by introducing magnetic particles with ion exchange resin as the main raw material, and its treatment effect on urban sewage was evaluated. The results showed that the COD value, chromaticity value, total nitrogen value and total phosphorus value of urban sewage after adsorption treatment with magnetic ion exchange resin MCR-1 were significantly reduced, and the water quality index was significantly improved. The optimum process parameters were as follows: the dosage of magnetic ion exchange resin MCR-1 was 2.5%, the reaction time was 30 min, and the initial pH value of sewage was 8. Under these process parameters, the effluent quality reached the best, the COD value was reduced to 17.6 mg·L^(-1), the chromaticity value was reduced to 5, the total nitrogen value was reduced to 8.5 mg·L^(-1), and the total phosphorus value was reduced to 0.2 mg·L^(-1). The combination of magnetic ion exchange resin MCR-1 adsorption and coagulation treatment could further reduce the content of pollutants in urban sewage. The addition of coagulant SPFS effectively improved the adsorption treatment efficiency of magnetic resin.

关 键 词：磁性离子交换树脂 城市污水 吸附处理 COD 混凝剂 

分 类 号：X7O3[环境科学与工程—环境工程]