Abstract:
The text is on a treatment trial which deals with the acidic wastewater samples from a copper mine in China. Zeta potential and particle size analysis are used synthetically for studying the mechanisms of speeding up the sedimentation of floc by coagulant aid and settling agent. Experimental results show that adjusting the pH of wastewater to 8.0, adding 1.6 mg/L cationic polymer flocculant PAM and 2.5 g/L coagulant aid and settling agent can obtain better flocculation-sedimentation effect, faster sedimentation rate and larger precipitant size.
Key words:
acidic mine wastewater,
PAM,
coagulant aid and settling agent,
Zeta potential
摘要：
以某铜矿山酸性废水为处理对象,综合运用Zeta电位、粒度分析等方法对助凝助沉剂加速絮凝物沉淀的机理进行研究。试验结果表明,废水pH=8.0,阳离子型高分子絮凝剂PAM的投加量为1.6 mg/L,助凝助沉剂用量为2.5 g/L时,可以取得较好的絮凝沉淀效果,沉淀速度较快,沉淀物粒径较大。
关键词:
矿山酸性废水,
聚丙烯酰胺,
助凝助沉剂,
Zeta电位
CLC Number:
Liu Ganlin, Peng Huiqing, Zhao Na, Yu Bo, Hu Haixiang. Experimental study of the application of coagulant aid and settling agent to the treatment of acidic mine wastewater[J]. INDUSTRIAL WATER TREATMENT, 2011, 31(1): 37-39.
刘甘霖, 彭会清, 赵娜, 余波, 胡海祥. 助凝助沉剂在矿山酸性废水处理中的试验研究[J]. 工业水处理, 2011, 31(1): 37-39.