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Metals 2016, 6(9), 206; doi:10.3390/met6090206

Study on the Leaching of Mercuric Oxide with Thiosulfate Solutions

School of Metallurgy, Northeastern University, 3-11 Wenhua Road, Shenyang 110004, China
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Author to whom correspondence should be addressed.
Academic Editor: Hugo F. Lopez
Received: 25 May 2016 / Revised: 3 August 2016 / Accepted: 3 August 2016 / Published: 30 August 2016
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Abstract

Mercury is receiving more concern due to its high mobility and high toxicity to human health and the environment. Restrictive legislations and world-wide efforts have been made on mercury control, especially the release and disposal of mercury-contaminated wastes. This paper describes a novel technology for detoxifying mercury-containing solid wastes with thiosulfate salts. Various parameters which may potentially influence mercury extraction from mercuric oxide with the thiosulfate leaching system—including reagent concentration, solution pH, and temperature—have been examined. The experimental results show that virtually all mercuric oxide can rapidly dissolve into the thiosulfate leaching system under optimized experimental conditions, indicating that thiosulfate is an effective lixivant for recovering mercury from mercury-containing solid waste. View Full-Text
Keywords: mercury; mercuric oxide; thiosulfate; leaching; detoxification mercury; mercuric oxide; thiosulfate; leaching; detoxification
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Han, C.; Wang, W.; Xie, F. Study on the Leaching of Mercuric Oxide with Thiosulfate Solutions. Metals 2016, 6, 206.

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