破乳混凝气浮技术预处理煤化工含石蜡废水的实验研究  

Experimental study on pretreatment of paraffin-containing wastewater in coal chemical industry by demulsification-coagulation and floatation technology

作　　者：王浩 王敏 乔瑞平 Wang Hao;Wang Min;Qiao Ruiping(Shanghai Hongji Environmental Protection Technology Co.,Ltd.,Shanghai 200433,China)

机构地区：[1]上海泓济环保科技股份有限公司,上海200433

出　　处：《煤化工》2022年第6期74-78,共5页Coal Chemical Industry

摘　　要：采用破乳混凝气浮技术对煤化工含石蜡废水进行预处理研究,分析了破乳剂、无机絮凝剂、有机助凝剂的种类和投加量等因素对废水破乳混凝气浮效果的影响。结果表明,破乳混凝气浮对煤化工含石蜡废水是一种有效的预处理技术,其最佳操作条件为破乳剂DMS02、无机絮凝剂PAFC2及有机助凝剂CPAM2的投加质量浓度分别为400 mg/L、200 mg/L及3 mg/L,此时处理后废水的COD、浊度的去除率分别为30.34%、96.40%。The process of demulsification combined with coagulation and floatation was used to pre-treat the paraffin-containing wastewater in coal chemical industry,and the influences of the types,dosage and other factors of demulsifier,inorganic flocculant and organic coagulant on the coagulation and floatation effect of paraffin-containing wastewater were studied.The results showed that demulsification-coagulation and floatation was an effective pretreatment technology for paraffin containing wastewater,the best operating conditions for the pretreatment were the demulsifier DMS02,the inorganic flocculant PAFC2 and the organic coagulant CPAM2 with the dosage concentrations of 400 mg/L,200 mg/L and 3 mg/L respectively.And the corresponding highest removal rates of COD and turbidity after such pretreatment were 30.34%and 96.40%respectively.

关 键 词：煤化工 含石蜡废水 破乳混凝气浮 破乳剂 无机絮凝剂 有机助凝剂 

分 类 号：X784[环境科学与工程—环境工程]