ORIGINAL RESEARCH
Highly Selective Copper and Nickel Separation and Recovery from Electroplating Sludge in Light Industry
Wei Xu1, Wei Liu1, Haochen Zhu1, Jingcheng Xu1, Guangming Li1, Dan Fu2, Lan Luo1
 
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1State Key Laboratory of Pollution Control and Resources Reuse,
College of Environmental Science and Engineering,
Tongji University, Shanghai, People’s Republic of China
2Shanghai Light Industry Research Institute,
Shanghai Engineering Research Center for Heavy Metal Pollution Control and Reuse,
Shanghai, People’s Republic of China
 
 
Submission date: 2014-04-30
 
 
Final revision date: 2014-07-13
 
 
Acceptance date: 2014-08-03
 
 
Publication date: 2015-02-06
 
 
Pol. J. Environ. Stud. 2015;24(1):367-374
 
KEYWORDS
TOPICS
ABSTRACT
Electroplating sludge and associated waste products comprise complex mixtures of metallic elements and may cause serious environmental pollution if discharged without treatment. An effective light industrial process is modified to selectively extract and recover copper and nickel from electroplating sludge. The procedure was developed on a laboratory scale and validated in a small pilot plant. Extraction yields of greater than 95% for Cu and Ni are achieved under optimum leaching conditions. To selectively recover copper and nickel from the leaching solution, they were extracted by N902 in kerosene, followed by selective stripping using sulfuric acid. The overall recoveries of copper and nickel were 93.6% and 88.9%, respectively, via a fast, simple, and inexpensive process. Partial recovery of ammonia in the process enables some cost savings. The technology can be used for metal resource recovery from solid wastes containing copper and nickel.
CONFLICT OF INTEREST
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
 
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ISSN:1230-1485
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