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金属矿山 ›› 2010, Vol. 39 ›› Issue (10): 169-171.

• 安全与环保 • 上一篇    下一篇

氢氧化镁吸附处理水中三价砷的研究

 杨金辉, 王劲松, 陈思光, 杜欣, 邓钦文   

  1. University of South China)
  • 出版日期:2010-10-15 发布日期:2010-11-09
  • 通讯作者: 杨金辉,421001 湖南省衡阳市。
  • 作者简介:杨金辉(1964—),女,湖南衡阳南华大学城市建设学院,硕士,高级工程师。
  • 基金资助:

    湖南省科技厅基金项目(编号:2008FJ3087),湖南省市政工程重点学科专业基金项目(湘教通[2006]30号)。

Study on the As(Ⅲ) Removal by Magnesium Hydroxide in Wastewater Treatment

南华大学   

  1. University of South China
  • Online:2010-10-15 Published:2010-11-09

摘要: 通过研究氢氧化镁吸附处理含As3+模拟废水,考察了振荡反应时间、氢氧化镁用量、反应温度及溶液pH值对As3+去除效果的影响。研究结果表明:氢氧化镁处理含As3+的废水,操作简便,去除率高,可达99%以上。吸附等温线符合Langmuir 等温方程,吸附容量为4.04 mg/L。

关键词: 氢氧化镁, 三价砷, 吸附, 水处理

Abstract: Through the tests on the As3+ wastewater treatment for As(Ⅲ) removal by magnesium hydroxide, the effects of reaction time, magnesium dosage, pH value and temperature on As(Ⅲ) removal were explored.The experimental results showed that magnesium hydroxide had an excellent performance in the removal of As(Ⅲ) ions from As3+ wastewater with easy operation and a high removal efficiency(up to 99% above).Its absorption isotherm mode matches well with Langmuir adsorption isotherm function,and its maximum adsorption capacity is 4.04 mg/L.

Key words: Magnesium hydroxide, As(Ⅲ), Adsorption, Water treatment