钙镁复合药剂处理洗煤废水的效果及作用机理研究  

Effect of the chemical combiningly prepared by CaCl_2 and MgSO_4 on coal-washing wastewater treatment and its mechanism

作　　者：李亚峰[1] 陈健[2] 班福臣[1] 

机构地区：[1]沈阳建筑大学环境学院,辽宁沈阳110168 [2]沈阳航空学院安全工程系,辽宁沈阳110034

出　　处：《工业水处理》2006年第4期47-49,共3页Industrial Water Treatment

基　　金：建设部科技攻关项目(05-K2-9);辽宁省教育厅攻关项目(2004D081)

摘　　要：用CaCl2与MgSO4复配出新的复合药剂,通过试验确定了适宜m(CaCl2)∶m(MgSO4)=11∶。采用正交实验确定了钙镁复合药剂与PAM联用处理洗煤废水的最佳组合条件,并通过生产性试验验证了实验室的试验结果。分析认为钙镁复合药剂对洗煤废水的混凝机理并不完全符合DLVO理论,它是多方面因素共同作用的结果。A new chemical is prepared combiningly by CaC12 and MgSO, It is determined through experiments that the proper mass ratio of CaCl2 and MgSO4 is 1 ： 1. The optimum technical conditions of coal-washing wastewater treatment by using CaCl2 and MgSO4 combiningly are determined by the orthogonal experiment. The experimental results in laboratory are proved to be true by experiments in production. The coagulation mechanism of this chemical for treating coal-washing wastewater does not completely conform to DLVO theory. There are many factors affecting the results cooperatively.

关 键 词：洗煤废水 氯化钙 硫酸镁 复配药剂 

分 类 号：X703.1[环境科学与工程—环境工程] X752