摘要
为去除化学镀镍废水中的镍离子和氨氮,研究了铁碳微电解–Fenton联合处理技术。探讨了废水初始p H、铁屑投加量、铁屑与活性炭质量比、反应时间和H2O2投加量对处理效果的影响。结果表明,当初始p H为3,铁屑投加量为40 g/L,铁炭质量比为2∶1,H2O2/Fe2+为1.2(质量比),反应20 min后镍离子的去除率达99.8%以上,出水镍离子含量<0.1 mg/L,氨氮去除率达46.1%。
A combined iron-carbon micro-electrolysis and Fenton process used for treating the wastewater produced from electroless nickel plating was studied with a view to removing nickel ion and ammonia nitrogen. The effects of initial pH of wastewater, dosage of iron, mass ratio of iron to activated carbon, reaction time, and H2O2 dosage on treatment effectiveness were discussed. The results showed that a removal efficiency of nickel ions exceeding 99.8% with residual nickel ions in the effluent less than 0.1 mg/L, and a removal efficiency of 46.1% for ammonia nitrogen can be achieved under the following conditions： initial pH = 3, iron dosage 40 g/L, iron-to-carbon mass ratio 2：1, H2O2-to-Fe^2＋ mass ratio 1.2, and reaction time 20 min.
出处
《电镀与涂饰》
CAS
CSCD
北大核心
2014年第23期1030-1032,共3页
Electroplating & Finishing
关键词
化学镀镍
废水
铁碳微电解
芬顿氧化
氨氮
electroless nickel plating
wastewater ironcarbon micro-electrolysis
Fenton oxidation
ammonia nitrogen
