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Highly efficient re...
Highly efficient recovery and clean-up of four heavy metals from MSWI fly ash by integrating leaching, selective extraction and adsorption
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- Tang, Jinfeng, 1984 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Linköpings universitet,Linköping University,Guangzhou University
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- Su, Minhua (författare)
- Guangzhou University
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- Wu, Qihang (författare)
- Guangzhou University
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- Wei, Lezhang (författare)
- Guangzhou University,Linköpings universitet,Linköping University
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- Wang, Nana (författare)
- Guangzhou University
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- Xiao, Enzong (författare)
- Guangzhou University
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- Zhang, Hongguo (författare)
- Linköpings universitet,Linköping University,Guangzhou University
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- Wei, Yongjun, 1986 (författare)
- Zhengzhou University
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Liu, Yingkui (författare)
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- Ekberg, Christian, 1967 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Steenari, Britt-Marie, 1953 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Xiao, Tangfu (författare)
- Guangzhou University
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(creator_code:org_t)
- Elsevier BV, 2019
- 2019
- Engelska.
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Ingår i: Journal of Cleaner Production. - : Elsevier BV. - 0959-6526. ; 234, s. 139-149
- Relaterad länk:
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- Municipal solid waste incineration (MSWI) fly ash contains significant amounts of heavy metals (e.g., Cd, Cu, Pb and Zn) and is therefore considered to be a hazardous waste requiring proper treatment prior to its disposal. In this work, an integrated hydrometallurgical process for treatment of MSWI fly ash was evaluated. Valuable metals, e.g. Cu and Zn, were first recovered by combining leaching and extraction sequentially. In the next step, the t removal of Cd and Pb from the remaining leachate using four types of iron-based adsorbents was evaluated. The leaching was optimized with respect to pH, leaching time and liquid to solid ratio. A test done under optimal conditions gave metal releases of 100% and 80% for Cu and Zn as well as 100% and 85% for Cd and Pb, respectively. The resulting leachate was contacted with organic phases based on kerosene containing the extractants LIX860N–I for Cu extraction and Cyanex 572 for Zn extraction in two consecutive steps. Efficient extractions were achieved, thus demonstrating that the combination of leaching and extraction can be successfully used for the recovery of Cu and Zn. Adsorption of heavy metal ions on various iron based sorbents to detoxify the aqueous effluent from the extraction showed good removal efficiency (more than 95%) for both Cd and Pb. The results of this study show that the proposed integrated process is a promising tool that can be used in the strategy for metal recovery and detoxification of MSWI fly ash.
Ämnesord
- SAMHÄLLSVETENSKAP -- Annan samhällsvetenskap -- Tvärvetenskapliga studier inom samhällsvetenskap (hsv//swe)
- SOCIAL SCIENCES -- Other Social Sciences -- Social Sciences Interdisciplinary (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Naturresursteknik -- Energisystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Engineering -- Energy Systems (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
Nyckelord
- Copper/zinc
- MSWI fly ash
- Metal recovery
- Detoxification
- Cadmium/lead
- Hydrometallurgy
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Tang, Jinfeng, 1 ...
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Su, Minhua
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Wu, Qihang
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Wei, Lezhang
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Wang, Nana
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Xiao, Enzong
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visa fler...
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Zhang, Hongguo
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Wei, Yongjun, 19 ...
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Liu, Yingkui
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Ekberg, Christia ...
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Steenari, Britt- ...
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Xiao, Tangfu
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visa färre...
- Om ämnet
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- SAMHÄLLSVETENSKAP
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SAMHÄLLSVETENSKA ...
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och Annan samhällsve ...
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och Tvärvetenskaplig ...
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Naturresurstekni ...
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och Energisystem
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- NATURVETENSKAP
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NATURVETENSKAP
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och Geovetenskap och ...
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och Miljövetenskap
- Artiklar i publikationen
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Journal of Clean ...
- Av lärosätet
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Chalmers tekniska högskola