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Sustainable extraction of hazardous metals from crystal glass waste using biodegradable chelating agents
Linnéuniversitetet, Institutionen för biologi och miljö (BOM).ORCID iD: 0000-0002-9012-1847
KTH Royal instute of technology, Sweden.
Malmö University, Sweden.ORCID iD: 0000-0001-8906-9271
KTH Royal instute of technology, Sweden;King Abdulaziz Univ, Saudi Arabia.
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2022 (English)In: Journal of Material Cycles and Waste Management, ISSN 1438-4957, E-ISSN 1611-8227, Vol. 24, no 2Article in journal (Refereed) Published
Abstract [en]

Extraction of hazardous metals from dumped crystal glass waste was investigated for site decontamination and resource recovery. Mechanically activated glass waste was leached with biodegradable chelating agents of ethylenediamine-N,N'-disuccinic acid (EDDS) and nitrilotriacetic acid (NTA), where the concentration and reaction time were determined by using Box-Wilson experimental design. Hazardous metals of lead (Pb), arsenic (As), antimony (Sb) and cadmium (Cd) with concentrations higher than regulatory limits were extracted wherein the extraction yield was found to vary Pb > Sb > As > Cd. Extraction was influenced more by type and concentration of chelator rather than by reaction time. A maximum of 64% of Pb could be extracted by EDDS while 42% using NTA. It is found that increase of chelator concentrations from 0.05 M to 1 M did not show improved metal extraction and the extraction improved with reaction time until 13 h. This study provides sustainable alternative for treating hazardous glass waste by mechanical activation followed by extraction using biodegradable chelator, instead of acid leaching.

Place, publisher, year, edition, pages
Springer , 2022. Vol. 24, no 2
Keywords [en]
Crystal glass waste, Heavy metals, Metal extraction, Biodegradable chelating agent, EDDS and NTA
National Category
Environmental Sciences
Research subject
Natural Science, Environmental Science
Identifiers
URN: urn:nbn:se:mdh:diva-57952DOI: 10.1007/s10163-022-01351-7ISI: 000746324200001Scopus ID: 2-s2.0-85123480534Local ID: 2022OAI: oai:DiVA.org:mdh-57952DiVA, id: diva2:1651633
Available from: 2022-02-04 Created: 2022-04-12 Last updated: 2022-08-29Bibliographically approved

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Mutafela, RichardJani, YahyaHogland, William

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