啤酒废水混凝预处理的试验研究

Experimental study of beer wastewater's pre- coagulation treatment

以大连华润啤酒厂废水为原水，进行了混凝预处理的试验，考察了啤酒废水混凝预处理的效果，并对混凝药剂进行了筛选。试验结果表明 ,混凝预处理可使啤酒废水 CODCr降低 40％ ,减少了后处理负荷。单投混凝剂聚合氯化铝 PAC或单投阴离子型聚丙烯酰胺 PAM,或者投 PAC加投 PAM效果较好。

The pre- coagulation experiment was carried out with the wastewater from Dalian Huarun Beer Plant as the original water. The study was made about the effect of pre- coagulation treatment on the beer wastewater and about the selections of coagulant. The result has shown that with pre- coagulation treatment, COD of beer wastewater can be reduced by 40％ , which will lessen the subsequent treatment burden. A better result can be achieved by using PAC as coagulant or PAM as the ion－ assistant coagulant and also by using PAC with the combination of PAM.