双氰胺脱色剂强化混凝处理印染废水  

Study on enhanced coagulation treatment of printing & dyeing wastewater by using bleaching agent dicyandiamide

作　　者：周霞[1] 杨小俊[1] 徐斌[1] 侯健[1] 秦新林[1] 曾庆福[1] 

机构地区：[1]武汉纺织大学纺织印染清洁生产教育部工程研究中心,湖北武汉430200

出　　处：《工业水处理》2012年第1期25-27,共3页Industrial Water Treatment

基　　金：863国家高技术研究发展计划重点项目(2009AA063904);"十一五"水体污染控制与治理科技重大专项(2008ZX07317);湖北省教育厅科学技术研究计划优秀中青年人才项目(Q20081706);武汉市科技攻关计划项目(200960223072)

摘　　要：将双氰胺脱色剂与聚合氯化铝进行复配,对某印染厂的二级处理出水进行强化混凝试验,确定了最佳的混凝剂复配比及混凝条件。研究结果表明:混凝剂的最佳复配比为双氰胺脱色剂0.12 mL/L、PAC 87.5 mg/L,此时脱色率达74%,CODCr去除率达57%,UV254去除率达36%,该复合混凝剂的处理效果良好。The enhanced coagulation experiments have been carried on by combining bleaching agent dicyandiamide and PAC for treating the secondary effluent water in a printing ＆ dyeing plant. The optimum composited ratio and coagulation conditions are determined. The results show that the best composited ratio of the coagulant is 0.12 mL/L of bleaching agent dicyandiamide and 87.5 mg/L of PAC. At this time, the decoloration rate is up to 74%, CODCr removing rate 57%,and UV254 removing rate 36%. The experimental results show that the composited coagulant is highly effective.

关 键 词：双氰胺脱色剂 强化混凝 印染废水 

分 类 号：X703[环境科学与工程—环境工程]