Leaching behaviour and environmental risk assessment of heavy metals from electronic solder in acidified soil
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- 作者：Xiaodong Lao ; Congqian Cheng ; Xiaohua Min…
- 关键词：Electronic solder ; ICP ; MS ; Acidified soil ; Leaching
- 刊名：Environmental Science and Pollution Research
- 出版年：2015
- 出版时间：November 2015
- 年：2015
- 卷：22
- 期：22
- 页码：17683-17690
- 全文大小：1,354 KB
- 参考文献：ASTM (2010) Standard practice for conducting and evaluating laboratory corrosion tests in soils, G162-99, United States, pp. 4
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Congqian Cheng (1)
Xiaohua Min (1)
Jie Zhao (1)
Dayu Zhou (1)
Xiaogang Li (3)
1. School of Materials Science and Engineering, Dalian University of Technology, Dalian, 116024, China
2. School of Physics and Electromechanical Engineering, Zhoukou Normal University, Zhoukou, 466000, China
3. Corrosion and Protection Center, University of Science and Technology Beijing, Beijing, 100083, China - 刊物类别：Earth and Environmental Science
- 刊物主题：Environment
Environment
Atmospheric Protection, Air Quality Control and Air Pollution
Waste Water Technology, Water Pollution Control, Water Management and Aquatic Pollution
Industrial Pollution Prevention - 出版者：Springer Berlin / Heidelberg
- ISSN：1614-7499
文摘
The leaching behaviour of Sn and Pb elements from eutectic SnPb solder of electronic waste in acidic soil was investigated through acidification with HCl–H2SO4 solution and compared with saline solution. The amounts of Sn and Pb elements leached, when subjected to acidic soil, are higher than those with saline soil. Evidence for the significantly preferential release of Sn into the leachate is provided; the galvanic couple accelerated such preferential release. Surface product analysis reveals the slight damage of SnPb in saline soil. Serious dissolution due to electrochemical reaction and a thick, porous PbSO4 surface layer are observed in acidified soil, suggesting more severe toxicity potential of Pb in soil rather than in water. Keywords Electronic solder ICP-MS Acidified soil Leaching