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为了提高电凝聚技术处理微污染水的效果,以苏州河水为处理对象,考察了不同反应条件下,电凝聚/超滤联用技术对TOC、氨氮、总磷及浊度的去除效果及其影响因素。结果表明:单独电凝聚或超滤技术对污染物的去除效果不够理想,而电凝聚/超滤联用技术能够有效地去除TOC、氨氮、总磷及浊度。在电解时间为30 min、电流密度为3.42 m A/cm2、沉淀时间为20 min、超滤进水流量为20 L/h的条件下,对TOC和氨氮的去除率分别达到了80%和51%,而对总磷和浊度的去除率则都高达99%,出水水质达到《生活饮用水卫生标准》(GB 5749—2006)的要求。
In order to improve the effect of electrocoagulation technology on the treatment of slightly polluted water, the effect of removal of TOC, ammonia nitrogen, total phosphorus and turbidity by electrocoagulation / ultrafiltration under different reaction conditions and their effects factor. The results showed that the electrocoagulation / ultrafiltration technology alone could not remove the pollutants effectively, while the technology of electrocoagulation / ultrafiltration could effectively remove TOC, ammonia nitrogen, total phosphorus and turbidity. Under the conditions of 30 min electrolysis time, 3.42 m A / cm2 current density, 20 min settling time and 20 L / h of ultrafiltration influent, the removal rates of TOC and ammonia nitrogen reached 80% and 51% %, While the total phosphorus and turbidity removal rates are as high as 99%, effluent quality to “drinking water health standards” (GB 5749-2006) requirements.