Enhanced removal of Cd(II) and As(III) from waters using S-Fe-C composites: Performance and mechanisms

Protecting ecosystems and human health from potentially toxic elements (PTEs) like Cd(II) and As is critical. The results showed that SnZVI particles were uniformly dispersed in biocarbon matrix. The pseudosecond- order kinetics and Langmuir model can better match the adsorption process of Cd(II) an...

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Main Authors: Liang Zihao, Chen Gongning
Format: Article
Language:English
Published: EDP Sciences 2025-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/03/e3sconf_isgst2024_02007.pdf
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author Liang Zihao
Chen Gongning
author_facet Liang Zihao
Chen Gongning
author_sort Liang Zihao
collection DOAJ
description Protecting ecosystems and human health from potentially toxic elements (PTEs) like Cd(II) and As is critical. The results showed that SnZVI particles were uniformly dispersed in biocarbon matrix. The pseudosecond- order kinetics and Langmuir model can better match the adsorption process of Cd(II) and As(III) by SFC., with the maximum removal capacity of 405 mg·g−1 and 349 mg·g−1, respectively. Biochar enhances electron transport and prevents S-nZVI agglomeration. The removal mechanisms of SFC, including chemical precipitation, ion exchange and oxidation, shows great potential for remediation of PTEs pollution in irrigation water.
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institution Kabale University
issn 2267-1242
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series E3S Web of Conferences
spelling doaj-art-7abba969388e439ea9cc67917d6b2ffe2025-02-05T10:47:33ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016030200710.1051/e3sconf/202560302007e3sconf_isgst2024_02007Enhanced removal of Cd(II) and As(III) from waters using S-Fe-C composites: Performance and mechanismsLiang Zihao0Chen Gongning1College of Environmental Science and Engineering, Guilin University of TechnologyCollege of Environmental Science and Engineering, Guilin University of TechnologyProtecting ecosystems and human health from potentially toxic elements (PTEs) like Cd(II) and As is critical. The results showed that SnZVI particles were uniformly dispersed in biocarbon matrix. The pseudosecond- order kinetics and Langmuir model can better match the adsorption process of Cd(II) and As(III) by SFC., with the maximum removal capacity of 405 mg·g−1 and 349 mg·g−1, respectively. Biochar enhances electron transport and prevents S-nZVI agglomeration. The removal mechanisms of SFC, including chemical precipitation, ion exchange and oxidation, shows great potential for remediation of PTEs pollution in irrigation water.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/03/e3sconf_isgst2024_02007.pdf
spellingShingle Liang Zihao
Chen Gongning
Enhanced removal of Cd(II) and As(III) from waters using S-Fe-C composites: Performance and mechanisms
E3S Web of Conferences
title Enhanced removal of Cd(II) and As(III) from waters using S-Fe-C composites: Performance and mechanisms
title_full Enhanced removal of Cd(II) and As(III) from waters using S-Fe-C composites: Performance and mechanisms
title_fullStr Enhanced removal of Cd(II) and As(III) from waters using S-Fe-C composites: Performance and mechanisms
title_full_unstemmed Enhanced removal of Cd(II) and As(III) from waters using S-Fe-C composites: Performance and mechanisms
title_short Enhanced removal of Cd(II) and As(III) from waters using S-Fe-C composites: Performance and mechanisms
title_sort enhanced removal of cd ii and as iii from waters using s fe c composites performance and mechanisms
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/03/e3sconf_isgst2024_02007.pdf
work_keys_str_mv AT liangzihao enhancedremovalofcdiiandasiiifromwatersusingsfeccompositesperformanceandmechanisms
AT chengongning enhancedremovalofcdiiandasiiifromwatersusingsfeccompositesperformanceandmechanisms