Sustainable extraction of hazardous metals from crystal glass waste using biodegradable chelating agents
| العنوان: | Sustainable extraction of hazardous metals from crystal glass waste using biodegradable chelating agents |
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| المؤلفون: | Mutafela, Richard Nasilele, Ye, Fei, Jani, Yahya, 1975, Dutta, Joydeep, Hogland, William |
| المصدر: | Journal of Material Cycles and Waste Management. 24:692-701 |
| مصطلحات موضوعية: | Crystal glass waste, Heavy metals, Metal extraction, Biodegradable chelating agent, EDDS and NTA |
| الوصف: | 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. |
| وصف الملف: | electronic |
| URL الوصول: | https://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-49964 https://doi.org/10.1007/s10163-022-01351-7 https://mau.diva-portal.org/smash/get/diva2:1635478/FULLTEXT01.pdf |
| قاعدة البيانات: | SwePub |
Find this article in full text from Springer Verlag. | تدمد: | 14384957 16118227 |
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| DOI: | 10.1007/s10163-022-01351-7 |