摘要
采用混凝—Fenton试剂氧化或混凝—臭氧氧化两种氧化技术预处理上海某医药集团原料药废水。实验结果表明:采用聚合氯化铝(PAC)和聚丙烯酰胺(PAM)复合混凝处理该废水,在混凝pH为9.5、混凝时间1h、PAC和PAM加入量分别为600 mg/L和12 mg/L时,COD的去除率可达23%;混凝后废水再分别用臭氧氧化和Fenton试剂氧化处理,臭氧氧化明显比Fenton试剂氧化经济有效,在臭氧氧化pH为10、臭氧加入量为15 g/L、臭氧氧化时间为1 h的条件下,废水COD去除率为27.8%,废水BOD5/COD明显提高,为后续生化处理提供了良好的条件。
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 1 h,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.
出处
《化工环保》
CAS
CSCD
北大核心
2013年第4期316-320,共5页
Environmental Protection of Chemical Industry
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
coagulation
ozonation
Fenton reagent oxidation
pretreatment
material drug
wastewater treatment
