摘要
采用Fenton法处理铝合金化铣废水,通过单因素实验和正交实验研究p H值、反应时间、转速、H2O2投加量、Fe2+投加量以及H2O2与Fe2+摩尔比对铝合金化铣废水COD的去除率的影响。结果表明,在p H=3,转速250 r/min,H2O2投加量1 m L,n(H2O2)∶n(Fe2+)=8,反应时间90 min的条件下,铝合金化铣废水COD的去除效果最佳,去除率可达到72.36%。在最佳实验条件下进行Fenton氧化降解铝合金化铣废水的表观动力学研究表明,Fenton氧化降解铝合金化铣废水对初始COD的反应级数为0.8204级。
The aluminum alloy chemical milling wastewater was treated by Fenton method. The effect of p H value, reaction time, rotational speed, H2O2 dosage, Fe2＋ dosage and the molar ratio between H2O2 and Fe2＋ on the COD removal rate of aluminum alloy chemical milling wastewater were investigated by single factor experiment and orthogonal experiment. The results showed that the optimum operating conditions for Fenton oxidation were as follows： pH=3, rotational speed =250 r/min, the dosage of H2O2=1 m L, n（H2O2）∶n（Fe2＋）=8, reaction time=90 min. Under the optimum conditions, the removal rate of the wastewater＇s COD was about 72.36%. In the reaction kinetics that aluminum alloy chemical milling wastewater was oxidized and degraded by Fenton method under the optimum conditions, the reaction sequence of the initial COD was 0.8204.
作者
黄宗亮
李茹
罗鹏
顾珺琍
HUANG Zong-liang;LI Ru;LUO Peng;GU Jun-li(School of Resources and Civil Engineering,Northeastern University,Shenyang 110819,China)
出处
《皮革与化工》
CAS
2018年第3期27-33,共7页
Leather And Chemicals
基金
航空联合基金项目(2015022004)
