Recovery of some economic resources from Cathode ray tube (CRT), extracting Lead
Kariem, M., frag, E., Abdelrazak, T., El-Sherif, A. (2023). Recovery of some economic resources from Cathode ray tube (CRT), extracting Lead. EKB Journal Management System, 66(13), 1043-1052. doi: 10.21608/ejchem.2023.181903.7756
mohamed Kariem; eman frag; Taha Abdelrazak; Ahmed El-Sherif. "Recovery of some economic resources from Cathode ray tube (CRT), extracting Lead". EKB Journal Management System, 66, 13, 2023, 1043-1052. doi: 10.21608/ejchem.2023.181903.7756
Kariem, M., frag, E., Abdelrazak, T., El-Sherif, A. (2023). 'Recovery of some economic resources from Cathode ray tube (CRT), extracting Lead', EKB Journal Management System, 66(13), pp. 1043-1052. doi: 10.21608/ejchem.2023.181903.7756
Kariem, M., frag, E., Abdelrazak, T., El-Sherif, A. Recovery of some economic resources from Cathode ray tube (CRT), extracting Lead. EKB Journal Management System, 2023; 66(13): 1043-1052. doi: 10.21608/ejchem.2023.181903.7756

Recovery of some economic resources from Cathode ray tube (CRT), extracting Lead

Egyptian Journal of Chemistry
Volume 66, Issue 13, December 2023, Page 1043-1052  XML PDF (982.18 K)
Document Type: Original Article
DOI: 10.21608/ejchem.2023.181903.7756
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Authors
mohamed Kariem1; eman frag email 2; Taha Abdelrazak3; Ahmed El-Sherif1
1Chemistry department, Faculty of Science, Cairo University, Egypt
2chemistry Department, faculty of science, cairo university
3Environmental basic sciences, Faculty of Environmental Studies and Research, Ain Shams University, Cairo, Egypt
Abstract
with diminishing primary resources, the circular economy idea developed as a replacement for the linear economy. CRT as an electronic commodity is considered a material intensive industry where a multitude of raw materials were consumed. At the end of life, CRT (as part of E-waste) presents a waste problem because it contains hazardous heavy metals. Cathode ray tubes (CRTs) contain harmful substances as Lead found in the funnel glass of CRT. This waste is considered hazardous due to its content from leachable lead compounds. lead may cause risks to human health and the environment. This work aims at valorising the potential of CRT waste as secondary material source and extracting lead from leaded glass of CRT. 250 Kg of CRT waste were manually dismantled. The product of dismantling is classified to glass, plastic, metals and weighed. The percent of glass was 57.1%(majority), sample of leaded glass were grinding and fused with sodium carbonate and adding activated carbon at 1000 °C. 80% of lead metal was recovered the other dismantling products were Couper Yoke 3.1 %, bord 9.1 %, wire 2.7 %, metals 5.5 %, plastic 15.1% and wood 5.6 % (minority). The potential use of every item is tabulated and discussed.
Keywords
Circular economy; extracting lead from CRT; Cathode ray tube glass waste; E-waste
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