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金属矿山 ›› 2011, Vol. 40 ›› Issue (11): 155-158+168.

• 安全与环保 • 上一篇    下一篇

O3/H2O2去除选矿废水中丁基黄药的研究

彭然1,张汉泉1,张亚平2,张婷2   

  1. 1.武汉工程大学环境与城市建设学院;2.集美大学生物工程学院
  • 出版日期:2011-11-15 发布日期:2011-11-17
  • 基金资助:

    * 国家自然科学基金项目(编号:51004053),福建省自然科学基金项目(编号:2009J01033),福建省青年创新人才项目(编号:2008F3076),厦门市杰出青年科技人才创新项目(编号:3502Z20116008),集美大学创新团队基金项目(编号:2010A007),集美大学优秀骨干教师项目(编号:2008C004,2009C004)。

Study on Removal of Butyl Xanthate in Floation Wastewater by O3/H2O2

Peng Ran1,Zhang Hanquan1,Zhang Yaping2,Zhang Ting2   

  1. 1.School of Environment and Civil Engineering,Wuhan Institute of Technology;2.School of biology Engineering,JiMei University
  • Online:2011-11-15 Published:2011-11-17

摘要: 用臭氧类高级氧化剂O3/H2O2对含有丁基黄药的模拟选矿废水进行了处理。考察了O3和H2O2的用量、溶液pH值、丁基黄药初始浓度、常见难免离子对废水CODCr去除效果的影响;并通过紫外-可见光谱和添加叔丁醇试验,探讨了O3/H2O2工艺去除丁基黄药的反应机理。结果表明:丁基黄药初始浓度为400 mg/L、pH=6.8的模拟废水1 000 mL,投加100 L/h 的O3和1 000 mg/L 的H2O2,反应2 h后CODCr的去除率可达60.25%;CO2-3和SO2-4有抑制废水中CODCr去除的作用,而Cu2+和Zn2+可以提高废水CODCr的去除率;O3/H2O2工艺去除废水CODCr反应遵循羟基自由基反应机制。

关键词: 选矿废水, 丁基黄药, O3/H2O2, 羟基自由基

Abstract: The stimulated flotation wastewater containing butyl xanthate was treated by O3/H2O2 process.Effects of O3 dosage,H2O2 dosage,pH value,initial solution concentration and common ions on wastewater CODCr removal were investigated.Reaction mechanism of removal of butyl xanthate by O3/H2O2 was studied by addition of tertiary butanol and using of UV-Vis absorption spectrum.The results showed that,CODCr removal rate can be reached 60.25% at 100 L/h of ozone dosage,1 000 mg/L of H2O2 dosage,pH 6.8 and 2 h of reaction time to 400 mg/L butyl xanthate.CODCrremoval is inhibited by introduction of CO2-3 and SO2-4.CODCrremoval rate is accelerated by introduction of Cu2+ and Zn2+.O3/H2O2process followed a hydroxyl radical type mechanism.

Key words: Floation wastewater, Butyl xanthate, O3/H2O2, Hydroxyl radicals