电渗析耦合蒸汽机械再压缩技术深度处理化工阻燃剂废水研究  

Study on Electrodialysis Coupling Mechanical Vapor Recompression for Depth Chemical Flame Retardant Wastewater Treatment

作　　者：何召龙 王清雯 高学理[1] 王振[1] 王小娟[1] 孙海静[1] 高从堦[1] 

机构地区：[1]中国海洋大学海洋化学理论与工程技术教育部重点实验室,山东青岛266100 [2]山东招远第一中学,山东招远265400

出　　处：《水处理技术》2016年第12期43-45,49,共4页Technology of Water Treatment

基　　金：国家科技支撑计划(2015BAE06B03);海洋公益性行业科研专项经费项目(201405035);河北省重大技术创新项目(12276702Z);山东省"泰山学者"建设工程专项经费

摘　　要：针对单一蒸汽机械再压缩(MVR)技术处理阻燃剂化工废水能耗相对较高的问题,采用电渗析(ED)耦合MVR技术的新型模式,对阻燃剂废水进行深度脱盐及脱COD处理的同时降低系统总能耗。电渗析阶段考察不同的水回收率、不同电压及不同流量下的废水处理效果;最终阶段采用MVR工艺处理电渗析浓室产水,并对过程能耗模拟分析。结果表明,当电渗析采用恒压为25 V、体积流量为15 L/h、电渗析水回收率为67%时,耦合工艺的总能耗与单一使用MVR相比降低了48.8%;同时整体工艺的水回收率提高至95%。The chemical flame retardant wastewater disposed by Mechanical vapor recompression （MVR） is characterized by high energy consumption, and a new model of electrodialysis （ED） coupling MVR technology is needed. The new model can achieve the goal of deep desalting for flame retardant wastewater, COD removal, and at the same time the energy consumption greatly reduction. Electrodialysis stage examined the wastewater treatment situation under different water recovery, different voltages and different flow rate. The final stage simulated the treatment situation of eleetrodialysis concentrate with the MVR. The results showed that the energy consumption decreased 48.8% with coupling process comparing with MVR when the operating voltage was 25 V, the volume flow rate was 15 L/h and water recovery was 67% on the electrodialysis process. The coupling process could achieve the 95% of water recovery.

关 键 词：电渗析 蒸汽机械再压缩 水回收率 阻燃剂 能耗 

分 类 号：TQ028.74[化学工程]