Sustainable extraction of hazardous metals from crystal glass waste using biodegradable chelating agentsShow others and affiliations
2022 (English)In: Journal of Material Cycles and Waste Management, ISSN 1438-4957, E-ISSN 1611-8227, Vol. 24, no 2, p. 692-701Article 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. Graphical abstract: [Figure not available: see fulltext.].
Place, publisher, year, edition, pages
Springer Nature , 2022. Vol. 24, no 2, p. 692-701
Keywords [en]
Biodegradable chelating agent, Crystal glass waste, EDDS and NTA, Heavy metals, Metal extraction, Chelation, Extraction, Glass, Hazards, Leaching, Metal recovery, Biodegradable chelating agents, Crystal glass, Ethylene diamine, Ethylenediamine-N, N′-disuccinic acid and nitrilotriacetic acid, Glass wastes, Hazardous metals, Metals extractions, Nitrilotriacetic acid, Resource recovery
National Category
Dentistry Biochemistry and Molecular Biology Environmental Sciences
Identifiers
URN: urn:nbn:se:kth:diva-319964DOI: 10.1007/s10163-022-01351-7ISI: 000746324200001Scopus ID: 2-s2.0-85123480534OAI: oai:DiVA.org:kth-319964DiVA, id: diva2:1704122
Note
QC 20221017
2022-10-172022-10-172022-10-17Bibliographically approved