摘要
用曝气法对制革废水进初步处理后,采用FeSO4、聚合氯化铝PAC、Al2S(O43)、A型和Ⅰ型复合絮凝剂分别对预曝后的水样做絮凝沉淀试验。结果表明:对于制革废水物化处理投加药剂以FeSO4较为合理,当原水COD Cr=3256mg/L时,投加FeSO 4500mg/L,CODCr去除率为55.4%,色度、氯化物和S2-的去除率分别为86%、76%和82%,每吨废水处理费用仅为0.10元。
After initial treatment of tanning wastewater by aeration, a coagulation sedimentation test of such kind was carried out with coagulants including FeSO4,PAC.Al2 （SO4）3.A-type and Ⅰ-type combined coagulants. The experiment results showed that the coagulant FeSO4 was more economic and reasonable. When water sample CODCr was 3 256 mg/L, the dose of FeSO4 was 500 mg/L, the removal rate of CODCr was about 55.4%, the removal rate of chronlinance.chloride and S^2- was 86%.76%and 82% respectively, and the disposed charge was only O. 10yuan/m^3.
出处
《苏州科技学院学报（工程技术版）》
CAS
2005年第4期8-10,共3页
Journal of Suzhou University of Science and Technology （Engineering and Technology）
关键词
制革废水
絮凝沉淀
絮凝剂
tanning wastewater
coagulation sedimentation
coagulant
