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氧化亚铁硫杆菌浸提废旧线路板铜的浸出率与时间的关系

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杨远坤, 谌书, 陈梦君, 陈海焱, 蔡漪. 氧化亚铁硫杆菌浸提废旧线路板铜的浸出率与时间的关系[J]. 环境工程学报, 2013, 7(6): 2322-2326.
引用本文: 杨远坤, 谌书, 陈梦君, 陈海焱, 蔡漪. 氧化亚铁硫杆菌浸提废旧线路板铜的浸出率与时间的关系[J]. 环境工程学报, 2013, 7(6): 2322-2326.
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Yang Yuankun, Chen Shu, Chen Mengjun, Chen Haiyan, Cai Yi. Relationship between leaching time and copper recovery from waste printed circuit boards by Thiobacillus ferrooxidans[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2322-2326.
Citation: Yang Yuankun, Chen Shu, Chen Mengjun, Chen Haiyan, Cai Yi. Relationship between leaching time and copper recovery from waste printed circuit boards by Thiobacillus ferrooxidans[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2322-2326.
shu

氧化亚铁硫杆菌浸提废旧线路板铜的浸出率与时间的关系

  • 1.

    西南科技大学固体废物处理与资源化教育部重点实验室, 绵阳 621010

  • 基金项目:

    国家自然科学基金资助项目(21177101)

    教育部科学技术研究重点项目资助(211165)

  • 中图分类号: X705

Relationship between leaching time and copper recovery from waste printed circuit boards by Thiobacillus ferrooxidans

  • 1.

    Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China

  • Fund Project:

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  • 摘要: 探讨氧化亚铁硫杆菌SW-02(Thiobacillus ferrooxidans SW-02)浸提废旧印刷线路板Cu的适宜浸出时间,对Cu的浸出率与时间的关系进行了研究。通过摇瓶培养的方式,在30℃,摇床转速为170 r/min条件下进行浸出实验,按不同时间间隔取样测定溶液Cu2+浓度,pH值与氧化还原电位。分析发现,线路板加入量在30 g/L及以上时,浸出40 h后浸出反应停止,而线路板加入量在15 g/L时,浸出40 h后Cu的浸出率达到70%,继续浸出,浸出率不再显著增加。研究结果表明,铜的适宜浸出时间为40 h。
    Abstract: The optimal leaching time of copper recovered from waste printed circuit boards (WPCBs) by Thiobacillus ferrooxidans SW-02 was investigated. The relationship between the leaching rates of copper and the leaching time was also explored by shaking culture. When leaching temperature was 30℃,the bioleaching experiments were carried out with a shaker rotary speed of 170 r/min. The concentration of Cu2+, pH values and ORP values were determined after certain time intervals. The results show that when the quantity of WPCBs powder goes beyond 30 g/L, the leaching reaction will terminate in 40 h. While the recovery rate of Cu reaches 70% after 40 h when the quantity of WPCBs powder is 15 g/L during bioleaching. Additionally, there is not significantly increase of recovery rate as the reaction continuing. It is concluded that the optimal bioleaching time of Cu is 40 h.
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  • 收稿日期:  2012-07-19
  • 刊出日期:  2013-06-11
杨远坤, 谌书, 陈梦君, 陈海焱, 蔡漪. 氧化亚铁硫杆菌浸提废旧线路板铜的浸出率与时间的关系[J]. 环境工程学报, 2013, 7(6): 2322-2326.
引用本文: 杨远坤, 谌书, 陈梦君, 陈海焱, 蔡漪. 氧化亚铁硫杆菌浸提废旧线路板铜的浸出率与时间的关系[J]. 环境工程学报, 2013, 7(6): 2322-2326.
shu
Yang Yuankun, Chen Shu, Chen Mengjun, Chen Haiyan, Cai Yi. Relationship between leaching time and copper recovery from waste printed circuit boards by Thiobacillus ferrooxidans[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2322-2326.
Citation: Yang Yuankun, Chen Shu, Chen Mengjun, Chen Haiyan, Cai Yi. Relationship between leaching time and copper recovery from waste printed circuit boards by Thiobacillus ferrooxidans[J]. Chinese Journal of Environmental Engineering, 2013, 7(6): 2322-2326.
shu

氧化亚铁硫杆菌浸提废旧线路板铜的浸出率与时间的关系

  • 1. 西南科技大学固体废物处理与资源化教育部重点实验室, 绵阳 621010
  • 收稿日期:  2012-07-19
基金项目:

国家自然科学基金资助项目(21177101)

教育部科学技术研究重点项目资助(211165)

摘要: 探讨氧化亚铁硫杆菌SW-02(Thiobacillus ferrooxidans SW-02)浸提废旧印刷线路板Cu的适宜浸出时间,对Cu的浸出率与时间的关系进行了研究。通过摇瓶培养的方式,在30℃,摇床转速为170 r/min条件下进行浸出实验,按不同时间间隔取样测定溶液Cu2+浓度,pH值与氧化还原电位。分析发现,线路板加入量在30 g/L及以上时,浸出40 h后浸出反应停止,而线路板加入量在15 g/L时,浸出40 h后Cu的浸出率达到70%,继续浸出,浸出率不再显著增加。研究结果表明,铜的适宜浸出时间为40 h。

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