Study on the Leaching of Mercuric Oxide with Thiosulfate Solutions

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 techno...

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Main Authors: Chao Han, Wei Wang, Feng Xie
Format: Article
Language:English
Published: MDPI AG 2016-08-01
Series:Metals
Subjects:
Online Access:http://www.mdpi.com/2075-4701/6/9/206
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author Chao Han
Wei Wang
Feng Xie
author_facet Chao Han
Wei Wang
Feng Xie
author_sort Chao Han
collection DOAJ
description 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.
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spelling doaj.art-70d57735db444a15af3edc833df1ced82022-12-21T18:42:15ZengMDPI AGMetals2075-47012016-08-016920610.3390/met6090206met6090206Study on the Leaching of Mercuric Oxide with Thiosulfate SolutionsChao Han0Wei Wang1Feng Xie2School of Metallurgy, Northeastern University, 3-11 Wenhua Road, Shenyang 110004, ChinaSchool of Metallurgy, Northeastern University, 3-11 Wenhua Road, Shenyang 110004, ChinaSchool of Metallurgy, Northeastern University, 3-11 Wenhua Road, Shenyang 110004, ChinaMercury 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.http://www.mdpi.com/2075-4701/6/9/206mercurymercuric oxidethiosulfateleachingdetoxification
spellingShingle Chao Han
Wei Wang
Feng Xie
Study on the Leaching of Mercuric Oxide with Thiosulfate Solutions
Metals
mercury
mercuric oxide
thiosulfate
leaching
detoxification
title Study on the Leaching of Mercuric Oxide with Thiosulfate Solutions
title_full Study on the Leaching of Mercuric Oxide with Thiosulfate Solutions
title_fullStr Study on the Leaching of Mercuric Oxide with Thiosulfate Solutions
title_full_unstemmed Study on the Leaching of Mercuric Oxide with Thiosulfate Solutions
title_short Study on the Leaching of Mercuric Oxide with Thiosulfate Solutions
title_sort study on the leaching of mercuric oxide with thiosulfate solutions
topic mercury
mercuric oxide
thiosulfate
leaching
detoxification
url http://www.mdpi.com/2075-4701/6/9/206
work_keys_str_mv AT chaohan studyontheleachingofmercuricoxidewiththiosulfatesolutions
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AT fengxie studyontheleachingofmercuricoxidewiththiosulfatesolutions