Leaching behaviour and environmental risk assessment of heavy metals from electronic solder in acidified soil

Xiaodong Lao; Congqian Cheng; Xiaohua Min; Jie Zhao; Dayu Zhou; Xiaogang Li

doi:10.1007/s11356-015-4868-x

Leaching behaviour and environmental risk assessment of heavy metals from electronic solder in acidified soil

Xiaodong Lao
, Congqian Cheng
, Xiaohua Min
, Jie Zhao^*
, Dayu Zhou
, Xiaogang Li

^*Corresponding author for this work

Dalian University of Technology
Zhoukou Normal University
University of Science and Technology Beijing

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	17683-17690
Number of pages	8
Journal	Environmental Science and Pollution Research
Volume	22
Issue number	22
DOIs	https://doi.org/10.1007/s11356-015-4868-x
State	Published - 1 Nov 2015
Externally published	Yes

Keywords

Acidified soil
Electronic solder
ICP-MS
Leaching

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10.1007/s11356-015-4868-x

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title = "Leaching behaviour and environmental risk assessment of heavy metals from electronic solder in acidified soil",

abstract = "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 = "Acidified soil, Electronic solder, ICP-MS, Leaching",

author = "Xiaodong Lao and Congqian Cheng and Xiaohua Min and Jie Zhao and Dayu Zhou and Xiaogang Li",

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doi = "10.1007/s11356-015-4868-x",

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T1 - Leaching behaviour and environmental risk assessment of heavy metals from electronic solder in acidified soil

AU - Lao, Xiaodong

AU - Cheng, Congqian

AU - Min, Xiaohua

AU - Zhao, Jie

AU - Zhou, Dayu

AU - Li, Xiaogang

PY - 2015/11/1

Y1 - 2015/11/1

N2 - 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.

AB - 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.

KW - Acidified soil

KW - Electronic solder

KW - ICP-MS

KW - Leaching

UR - https://www.scopus.com/pages/publications/84947615156

U2 - 10.1007/s11356-015-4868-x

DO - 10.1007/s11356-015-4868-x

M3 - 文章

C2 - 26154035

AN - SCOPUS:84947615156

SN - 0944-1344

VL - 22

SP - 17683

EP - 17690

JO - Environmental Science and Pollution Research

JF - Environmental Science and Pollution Research

IS - 22

ER -

Leaching behaviour and environmental risk assessment of heavy metals from electronic solder in acidified soil

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