混凝沉淀-微电解-Fenton组合工艺预处理香精香料废水  

Pretreatment of Perfume Waste-water by CoagulationSedimentation-micro-electrolysis-Fenton Process

作　　者：胡晓勇 蒋尊芳 宋乐山 HU Xiao-yong;JIANG Zun-fang;SONG Le-shan(Yonker Environmental Protection Co.Ltd.,Changsha Hunan 410000,China;不详)

机构地区：[1]永清环保股份有限公司,湖南长沙410000 [2]农业部南京设计院中南分院,湖南长沙410000

出　　处：《环境科学导刊》2021年第3期62-64,69,共4页Environmental Science Survey

摘　　要：以香精香料生产废水为实验对象,其COD浓度为58421mg/L,采用混凝沉淀-微电解-Fenton组合工艺对该废水进行预处理,研究废水pH、药剂投加量、反应时间等因素对废水COD去除的影响。结果表明:以5%FeCl_(3)为混凝剂,在pH=7,FeCl_(3)投加量为10mL/50mL,0.06%PAM投加量为0.25mL/50mL时,废水COD的去除率为20.1%;铁碳微电解-铁碳材料与废水比例为2∶1(w/v),pH为3~4,曝气反应时间150min时,COD的去除率为14.6%;pH为4~5,双氧水投加量0.4mL/100mL,Fenton反应5h时,去除率为36.6%。经过该组合工艺的处理,香精香料废水总COD去除率可达60%。The perfume waste-water containing 58421 mg/L of COD was pretreated by coagulation-sedimentation-micro-electrolysis-Fenton process,and the effects of pH,dosage and reaction time on the removal rate of COD were studied systematically.The results showed that with FeCl_(3)as coagulant,the dosage of 5%FeCl_(3)was 10mL/50mL,pH 7,and the dosage of 0.06%PAM was 0.25ml/50mL,the removal rate of COD reached to 20.1%;the ratio of iron-carbon micro-electrolysis-iron-carbon material to waste-water was 2∶1(w/v).When pH 3-4,the aeration reaction time was 150min,the removal rate of COD was 14.6%;pH 4~5,dosage of Hydrogen Peroxide was 0.4mL/100mL,reaction time was 5 hours,the removal rate of COD reached to 36.6%.After the whole process,the total removal rate of COD was 60%.

关 键 词：香精香料废水 预处理 混凝沉淀 微电解 FENTON 

分 类 号：X703[环境科学与工程—环境工程]