摘要
Abstract
The material drug wastewater from Shanghai medicine Co.was pretreated separately by coagulation-ozonation and coagulation-Fenton reagent oxidation.The experimental results show that:When the wastewater is coagulated by poly aluminium chloride (PAC) and polyacrylamide (PAM),the COD removal rate can reach 23％ under the conditions of coagulation pH 9.5,coagulation time 1 h,PAC dosage 600 mg/L and PAM dosage 12 mg/L; When the coagulated wastewater is treated separately by ozonation and Fenton reagent oxidation,the ozonation process is more economical and effective than Fenton reagent oxidation process; When the ozonation pH is 10,the ozone dosage is 15 g/L and the ozonation time is 1h,the COD removal rate can reach 27.8％,and the BOD5/COD can be increased significantly,which can provide a good condition for further bio-treatment.关键词
混凝/臭氧氧化/芬顿试剂氧化/预处理/原料药/废水处理Key words
coagulation/ ozonation/ Fenton reagent oxidation/ pretreatment/ material drug/wastewater treatment分类
资源环境
