乙草胺废水处理技术研究

Comprehensive Treatment Technology Research of Acetochlor Wastewater

采用混凝法、Fenton法这两种方法来降低乙草胺废水的COD。混凝法,分别从PAC用量、PAM用量以及p H值三方面研究了其混凝行为;针对Fenton法,则是从H_2O_2用量、H_2O_2和Fe^(2+)的比值、pH值和反应时间四个方面研究了催化氧化过程;实验结果表明,当PAC用量为1 g/L,PAC/PAM=20∶1,pH=7时,混凝效果最好;当H2O2用量为16.65 m L/L,H2O2/Fe2+=5∶1,pH=4,反应时间为90 min时,Fenton法对降低废水COD的效果最好。

Coagulation,Fenton methods are used to reduce the COD of acetochlor wastewater. The behaviors of coagulation were studied from the PAC dosage,PAM dosage and p H valuein. For Fenton method,catalytic oxidation process was studied from H_2O_2 dosage,H_2O_2 and Fe^（2＋）ratio,p H and reaction time. Experimental results showed that when PAC dosage was 1 g / L,PAC / PAM = 20 ∶1,p H = 7,the coagulation effect szs best. When H_2O_2 dosage was16. 65 m L / L,H_2O_2/ Fe^（2＋）= 5 ∶1,p H = 4,the reaction time was 90 min. Fenton method worked best to reduce the COD.