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金属矿山 ›› 2016, Vol. 45 ›› Issue (11): 167-172.

• 安全与环保 • 上一篇    下一篇

黄铜矿催化异相类Fenton反应处理染料废水研究

邓东升,汤志涛,石寒松,汤哲人,陈泉源   

  1. 东华大学环境科学与工程学院,上海 201620
  • 出版日期:2016-11-15 发布日期:2017-02-15
  • 基金资助:

    基金项目:国家自然科学基金资助项目(编号:21277023)。

Treatment of Dyeing Wastewater by Chalcopyrite Catalyzed Fenton-like Reaction

Deng Dongsheng,Tang Zhitao,Shi Hansong,Tang Zheren,Chen Quanyuan   

  1. College of Environmental Science and Engineering,Donghua University,Shanghai 201620,China
  • Online:2016-11-15 Published:2017-02-15

摘要: 采用异相类Fenton反应处理染料废水,并以均相Fenton反应为对照,考察废水初始pH值、催化剂投加量、H2O2投加浓度和反应时间对处理效果的影响,测定了反应过程中铁离子和剩余H2O2浓度的变化情况。结果表明,对于试验用实际染料废水,均相Fenton反应适宜的pH范围为3~8,七水合硫酸亚铁投加量为2 g/L,H2O2投加浓度为20 mmol/L,反应时间为2 h时,COD去除率与色度去除率最高能达到59.39%和97.71%;异相类Fenton反应在废水初始pH=3时处理效果最佳,黄铜矿投加量为9 g/L,H2O2投加浓度为20 mmol/L,反应时间4 h时,COD去除率与色度去除率分别为56.03%和93.79%。均相和异相类Fenton反应处理染料废水过程中生成的·OH能降解有机污染物。

关键词: Fenton反应, 异相类Fenton反应, 黄铜矿, 染料废水

Abstract: The dyeing wastewater was treate by Fenton-like oxidation to investigate the effects of wastewater initial pH,catalyst dosage,H2O2 dosage and reaction time by contrasting with that of Fenton reaction.And the variation of iron concentration and H2O2 dosage in Fenton and Fenton-like process were also explored.Experimental results showed that under condtions of the pH range of Fenton oxidation from 3 to 8,at ferrous sulfate dosage of 2 g/L,H2O2 dosage of 20 mmol/L and reaction time 2 h,COD removal is 59.39% and decolorization is 97.71% in Fenton reaction.At chalcopyrite dosage of 9 g/L,H2O2 dosage of 20 mmol/L,pH=3 and reaction time 4 h,COD removal is 56.03% and decolorization is 93.79% in Fenton-like reaction.It was also found that the ·OH ion which is generated by Fenton and Fenton-like reaction in treating the dyeing wastewater could degradate organic pollutants.

Key words: Fenton reaction, Fenton-like reaction, Chalcopyrite, Dyeing wastewater