PDMDAAC及其复合絮凝剂对模拟印染废水的处理-有色金属在线

简介概要

PDMDAAC及其复合絮凝剂对模拟印染废水的处理

来源期刊：中南大学学报(自然科学版)2008年第4期

论文作者：李荣庭郑雅杰彭振华彭长宏

文章页码：658 - 664

关键词：聚二甲基二烯丙基氯化氨；绿矾；聚合硫酸铁；染料废水；

Key words：PDMDAAC; copperas; polyferric sulfate; dyeing wastewater

摘要：

采用聚二甲基二烯丙基氯化氨(PDMDAAC)及其复合絮凝剂分别处理质量浓度为30 mg/L直接耐酸大红4BS，30 mg/L酸性湖兰A，240 mg/L直接黄棕ND3G和10 mg/L碱性玫瑰精Ｂ这4种模拟印染废水。研究结果表明：当废水pH值为6.70~7.48时，PDMDAAC处理4种模拟印染废水，其脱色率低于20%；当pH值为12时，FeSO₄-PDMDAAC复合絮凝剂处理直接耐酸大红模拟废水，其脱色率最高为87.40%；PFS-FeSO₄-PDMDAAC复合絮凝剂处理酸性湖蓝模拟废水，其脱色率达到95.70%；当pH值为11~13时，PFS-FeSO₄-PDMDAAC处理直接黄棕模拟废水，其脱色率约为60%；PFS-FeSO₄-PDMDAAC处理碱性玫瑰精模拟废水，基本无脱色效果；在双氧水作用下，PFS-FeSO₄-PDMDAAC复合絮凝剂处理直接黄棕和碱性玫瑰精模拟废水，其脱色率均最高，分别达到95.17%和90.30%。

Abstract: Polydiallyldimethylammonium chloride (PDMDAAC) and its composite flocculants were used to treat 4 kinds of simulated dyeing wastewater in which the concentrations of direct fast scarlet 4BS, acid turpuoise blue A, yellow brown ND3G and basic rhodamine toner B were respectively 30, 30, 240 and 10 mg/L. The results show that the decolorization rate is below 20% when pH value is 6.70-7.48 to treat 4 kinds of simulated dyeing wastewater by PDMDAAC. The decolorization rate is up to 87.40% at pH 12 when a composite flocculant of FeSO₄-PDMDAAC treats wastewater of direct fast scarlet 4BS. The decolorization rate is 95.70% at pH 12 when PFS-FeSO₄-PDMDAAC is used to treat wastewater of acid turpuoise blue A. The decolorization rate is about 60% at pH 11-13 when PFS-FeSO₄-PDMDAAC is used to treat wastewater of yellow brown ND3G. When PFS-FeSO₄-PDMDAAC is used to treat wastewater of basic rhodamine toner B the decolorization effect is small. When PFS-FeSO₄-PDMDAAC is used under the action of peroxide the decolorization rates of two kinds of simulated dyeing westwater of basic rhodamine toner B and yellow brown ND3G are 95.17% and 90.30%, respectively.

基金信息：广东省创新基金资助项目

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