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    • 10. 发明申请
    • METHOD FOR TREATING HIGHLY CONCENTRATED RESIN-DESORPTION LIQUID GENERATED FROM WASTEWATER DEEP PURIFICATION
    • 用于处理由废水深度净化产生的高浓度树脂分解液的方法
    • US20130240450A1
    • 2013-09-19
    • US13988512
    • 2011-08-12
    • Aimin LiLing XuJun FanBicun JiangDanning Jiang
    • Aimin LiLing XuJun FanBicun JiangDanning Jiang
    • C02F9/00
    • C02F9/00C02F1/42C02F1/442C02F1/52C02F1/5209C02F1/5236C02F1/5245C02F1/72C02F1/722C02F1/725C02F1/78C02F3/12C02F3/1215C02F2209/06C02F2305/02C02F2305/026Y02W10/15
    • A method for treating highly concentrated resin-desorption liquid generated from wastewater deep purification, including channeling the highly concentrated desorption liquid generated from anion exchange resin treatment through a nanofiltration membrane, the liquid being separated into nanofiltration permeate that can be reused as the desorption agent and highly concentrated nanofiltration retentate; adding a coagulating agent to the highly concentrated nanofiltration retentate to generate coagulation-precipitation; subjecting the supernatant formed after the coagulation-precipitation process to Fenton oxidation or ozone oxidation; after the reaction, adding to the liquid an alkali solution for further coagulation-precipitation; then channeling the liquid so treated back to the biochemical system of biochemical effluent treatment for further biodegradation is provided. The recycled treatment of the highly concentrated desorption liquid consequently reduces the treatment cost and prevents secondary pollution by realizing innocuous treatment and reclamation of resin-desorption liquid as well as reduction of its total volume.
    • 一种用于处理由废水深度净化产生的高浓度树脂解吸液的方法,包括将通过阴离子交换树脂处理产生的高浓度解吸液引导通过纳滤膜,将该液体分离成能够再次用作解吸剂的纳滤渗透物, 高度浓缩的纳滤滤液; 向高度浓缩的纳滤滤液中加入凝结剂,产生凝结沉淀; 在凝结沉淀过程后形成的上清液进行芬顿氧化或臭氧氧化; 反应后,向液体中加入碱溶液进行进一步凝结沉淀; 然后提供如此处理的液体回到生物化学废水处理生化系统进一步生物降解。 高浓度解吸液的再循环处理因此降低了处理成本,并且通过实现树脂解吸液的无害化处理和回收以及其总体积的降低来防止二次污染。