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山东大学学报(工学版) ›› 2010, Vol. 40 ›› Issue (2): 95-98.

• 环境科学与工程 • 上一篇    下一篇

NH3-(NH4)2SO4体系浸析PCB污泥中铜的研究

姚雅伟,崔兆杰*,王红燕   

  1. 山东大学环境科学与工程学院， 山东 济南 250100
  • 收稿日期:2009-09-22 出版日期:2010-04-16 发布日期:2009-09-22
  • 通讯作者: 崔兆杰(1963-),男,山东烟台人,博士,教授,主要研究方向为清洁生产与循环经济. E-mail:E-mail: cuizj@sdu.edu.cn
  • 作者简介:姚雅伟(1984-),男,山东滕州人,硕士研究生,主要研究方向为固体废物污染与防治.E-mail: yaoyawei123@yahoo.com.cn
  • 基金资助:

    山东省省级环保产业技术研发专项资金资助项目(鲁财建指［2007］132)

Study on the leaching of copper by the NH3-(NH4)2SO4system from sludge produced in PCB industry

 YAO Ya-wei, CUI Zhao-jie*, WANG Hong-yan   

  1. School of Environmental Science and Engineering, Shandong University, Jinan 250100, China
  • Received:2009-09-22 Online:2010-04-16 Published:2009-09-22

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关键词: 印刷电路板, 污泥, 铜, NH3-(NH4)2SO4体系, 浸析

Abstract:

Copper sludge is produced during the production of printed circuit boards. The leaching of copper from the sludge by the NH3-(NH4)2SO4 system was studied. First, the mass contents of heavy metals in the sludge were determined. With few contents of other metals, the content of copper was 33.500％. The effect of concentrations of NH3-(NH4)2SO4,  pH, leaching time, liquid／solid ratio and temperature were investigated. The optimum leaching conditions were found when the  ammonia／ammonium sulfate concentrations were 3.0mol／L and 1.5mol／L, the  leaching time was 180min, the liquid／solid ratio was 20mL／g, and the  temperature  was 25℃. Under these conditions, about 97.5％ of the copper was effectively leached, and the relative standard deviation(RSD) was 0.63％.

Key words: printed circuit boards, sludge, copper, NH3-(NH4)2SO4system, leaching

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