Sökning: onr:"swepub:oai:research.chalmers.se:43d43291-091a-4207-aa83-bc8f51635752" >
Optimizing critical...
Optimizing critical metals recovery and correlative decontamination from MSWI fly ash: Evaluation of an integrating two-step leaching hydrometallurgical process
-
- Tang, Jinfeng, 1984 (författare)
- Linköpings universitet,Linköping University,Chalmers tekniska högskola,Chalmers University of Technology
-
- Dong, Shaobin (författare)
- Linköpings universitet,Linköping University
-
- Feng, Qian (författare)
- Linköpings universitet,Linköping University
-
visa fler...
-
- Su, Minhua (författare)
- Linköpings universitet,Linköping University
-
- Wei, Yongjun (författare)
- Zhengzhou University
-
- Liang, Jiawei (författare)
- Zhengzhou University
-
- Zhang, Hongguo (författare)
- Linköpings universitet,Linköping University
-
- Huang, Lei (författare)
- Linköpings universitet,Linköping University
-
- Kong, Lingjun (författare)
- Linköpings universitet,Linköping University
-
- Wang, Nana (författare)
- Linköpings universitet,Linköping University
-
- Xiao, Enzong (författare)
- Linköpings universitet,Linköping University
-
Liu, Yingkui (författare)
-
- Tang, Xuan (författare)
- Guangzhou University
-
- Xiao, Tangfu (författare)
- Linköpings universitet,Linköping University
-
visa färre...
-
(creator_code:org_t)
- Elsevier BV, 2022
- 2022
- Engelska.
-
Ingår i: Journal of Cleaner Production. - : Elsevier BV. - 0959-6526. ; 368
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
https://research.cha...
-
visa färre...
Abstract
Ämnesord
Stäng
- While municipal solid waste incineration (MSWI) fly ash is classified as hazardous waste, it can also serve as an urban mining source for numerous precious metals. Of particular interest are antimony (Sb) and zinc (Zn); the former of which is a strategic and critical metal that is being rapidly depleted, putting society at high risk for supply shortages. In this work, a two-step leaching method for recovering Sb and Zn from MSWI fly ash is proposed. Furthermore, the leaching behavior and adsorption mechanism of Sb in the MSWI fly ash waste stream were also investigated. Results from the first constant pH leaching tests (CPLT) showed that under diluted acidic condition, the maximum amount of Sb released from fly ash was ∼20%. In addition, at pH 4.0, 67% of the fly ash was dissolved, while 79.3% and 12.1% of the Zn and Sb, respectively, were recovered. After optimizing and executing a second Sb leaching procedure (6 M HCl solution at 60 °C), >80% of the Sb was recovered. Thus, the proposed two-step leaching process, consisting of extraction followed by decontamination using a magnetic HAP@CoFe2O4 adsorbent, can eliminate the Sb in fly ash effluent with a removal efficiency >95%. Moreover, this process produces less toxic products and lowers the effluent residue concentration. As such, the two-step process described herein is suggested for Sb and Zn recovery from fly ash; as it not only enables precious metal recovery, but also aids in treating secondary waste streams produced from urban mining.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Kemiska processer (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Chemical Process Engineering (hsv//eng)
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik -- Bioenergi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology -- Bioenergy (hsv//eng)
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
-
Tang, Jinfeng, 1 ...
-
Dong, Shaobin
-
Feng, Qian
-
Su, Minhua
-
Wei, Yongjun
-
Liang, Jiawei
-
visa fler...
-
Zhang, Hongguo
-
Huang, Lei
-
Kong, Lingjun
-
Wang, Nana
-
Xiao, Enzong
-
Liu, Yingkui
-
Tang, Xuan
-
Xiao, Tangfu
-
visa färre...
- Om ämnet
-
- TEKNIK OCH TEKNOLOGIER
-
TEKNIK OCH TEKNO ...
-
och Kemiteknik
-
och Kemiska processe ...
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Kemi
-
och Annan kemi
-
- TEKNIK OCH TEKNOLOGIER
-
TEKNIK OCH TEKNO ...
-
och Industriell biot ...
-
och Bioenergi
- Artiklar i publikationen
-
Journal of Clean ...
- Av lärosätet
-
Chalmers tekniska högskola