Towards a sludgeless heavy metal finishing industry for a cleaner environment

The treatment of heavy metals is based primarily on chemical coagulation and precipitation where substantial amounts of toxic sludge are normally generated. A study using an electrolytic processes has been carried out to recover heavy metals from a mixed plating bath in a metal finishing factory. Th...

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Main Authors: Ab. Hamid, Noor Hisham, Idris, Azni
格式: Article
语言:English
English
出版: Elsevier 1996
在线阅读:http://psasir.upm.edu.my/id/eprint/35251/1/Towards%20a%20sludgeless%20heavy%20metal%20finishing%20industry%20for%20a%20cleaner%20environment.pdf
http://psasir.upm.edu.my/id/eprint/35251/7/1-s2.0-S0011916496001373-main.pdf
http://psasir.upm.edu.my/id/eprint/35251/
http://www.sciencedirect.com/science/article/pii/S0011916496001373
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总结:The treatment of heavy metals is based primarily on chemical coagulation and precipitation where substantial amounts of toxic sludge are normally generated. A study using an electrolytic processes has been carried out to recover heavy metals from a mixed plating bath in a metal finishing factory. The unit uses a RETEC system consisting of a high surface area cell based on a simple theory of electrolysis and produces a very large surface area about 10–15 times the geometrical surface area of the cathode. This paper presents cases where 95% tin, lead, and 98% copper, nickel, and zinc were successfully recovered, and discusses economic considerations.