PDMDAAC及其复合絮凝剂对模拟印染废水的处理  

Simulated dyeing wastewater treated by PDMDAAC and its composite flocculants

作　　者：李荣庭[1] 郑雅杰[1] 彭振华[1] 彭长宏[1] 

机构地区：[1]中南大学冶金科学与工程学院

出　　处：《中南大学学报（自然科学版）》2008年第4期658-664,共7页Journal of Central South University:Science and Technology

基　　金：广东省创新基金资助项目(200501045)

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30mg/L直接耐酸大红4BS,30mg/L酸性湖兰A,240mg/L直接黄棕ND3G和10mg/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%。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.

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 

分 类 号：X703[环境科学与工程—环境工程]