多核复合聚铝絮凝剂对水体残留铝的影响  

Influence of multi-core composite polyaluminum flocculant on residual aluminum

作　　者：吴彦瑜[1] 何小玉[2] 周少奇[1] 陈文纳[2] 

机构地区：[1]华南理工大学环境科学与工程学院,广州510006 [2]广西师范学院化学系,南宁530001

出　　处：《环境工程学报》2010年第1期125-127,共3页Chinese Journal of Environmental Engineering

摘　　要：采用分别添加金属离子Fe^(3+)和Zn^(2+)的方法制备多核复合型絮凝剂聚合氯化铝铁(PAFC)和聚合氯化铝锌(PAZC),并与市售聚合氯化铝(PAC)比较处理高岭土模拟水样后出水残留铝浓度,得出复合絮凝剂具有更低的出水余铝量及更宽的pH适用范围以及更低的投加量。达到85%COD去除率,PAZC、PAFC和PAC用量分别为5、10和20 mg/L;处理后出水残余铝量分别为0.04、0.09和0.14 mg/L;处理成本分别为0.020、0.028和0.048元/t。Multi-core composite polyaluminum coagulants PAFC and PAZC were prepared by adding Fe^3＋ and Zn^2＋ respectively. Assaying of residual aluminum shows that composite coagulants PAFC and PAZC have wider pH range, lower residual aluminum concentrations, fewer dosages. For arehieving 85% of COD removal efficiency treated by PAZC, PAFC and PAC respectively, the dosages of coagulant are 5,10 and 20 mg/L; the residual alumimum of treated effluent are 0.04, 0.09 and 0.14 mg/L; the treatment costs are 0. 020, 0, 028 and 0. 048 yuan/t,

关 键 词：复合絮凝剂 残留铝 处理成本 

分 类 号：TQ085[化学工程]