摘要
南京市某化工原料公司生产中产生3种不同性质的工艺废水(简称1、2、3号废水),水量分别为2.0、2.4、4.8 m^3/d。针对3种废水不同的特征,探讨了蒸发结晶和微电解+Fenton氧化+混凝沉淀两组预处理工艺。试验结果表明,1号废水的最佳预处理工艺为蒸发结晶,COD、TN去除率分别为84.21%和67.57%;2号、3号废水最佳预处理工艺均为微电解+Fenton氧化+混凝沉淀,COD、TN去除率分别为92.20%和81.36%、88.85%和94.08%。
Three kinds of wastewater were produced by a chemical company in Nanjing (referred to as strands of wastewater 1,2 and 3),the amount of water were 2.0,2.4 m^3/d and 4.8 m^3/d.According to the different characteristics of the three kinds of wastewater,two pretreated processes were designed which were evaporation and micro-electrolysis+fenton oxidation+coagulation and precipitation.The results showed that the best pretreatment process for the wastewater 1 was evaporation crystallization,the removal rates of COD and TN were 84.21% and 67.57%.The second combined method was the best pretreatment process for wastewater 2 and 3,the removal rates of COD and TN were 92.20% and 81.36%,88.85% and 94.08%,respectively.
作者
吴平
林超霸
朱四琛
周俊
WU Ping;LIN Chaoba;ZHU Sichen;ZHOU Jun(College of Biotechnology and Pharmaceutical Engineering,Nanjing Tech University,Nanjing 211816, China;College of Urban Construction,Nanjing Tech University,Nanjing 211816,China)
出处
《净水技术》
CAS
2019年第3期102-108,共7页
Water Purification Technology
基金
国家自然科学基金(21777069)
国家重点研发计划项目(2016YFE0112800)
江苏省重点研发计划项目(BE2016389)
关键词
化工废水
蒸发
微电解
FENTON氧化
混凝沉淀
chemical wastewater
evaporation
micro-electrolysis
Fenton oxidation
coagulation and sedimentation
