Assessment of Heavy Metal Contents of End-Of-Life Computer Monitor Cathode Tubes and Plastic Casings
| Autor: | O. Osibanjo, IC Nnorom, J. Owoso |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
021110 strategic
defence & security studies Acid digestion 0211 other engineering and technologies 02 engineering and technology 010501 environmental sciences 01 natural sciences Cathode law.invention environmental hazard cathode ray tube plastic casing end-of-life computer monitor Metal law Hazardous waste visual_art Environmental chemistry visual_art.visual_art_medium Environmental science Atomic absorption spectroscopy 0105 earth and related environmental sciences Computer technology |
| Zdroj: | Journal of Applied Sciences and Environmental Management; Vol 22, No 3 (2018); 400-405 |
| ISSN: | 1119-8362 |
| DOI: | 10.4314/jasem.v22i3.19 |
| Popis: | Development and innovation in computer technology have led to the generation of large quantities of end-of-life computing equipment with the attendant challenge of environmentally sound management, especially in developing countries. This study evaluated the heavy metal contents of the cathode ray tube (CRT) and the plastic casing of thirty (30) end-of-life computer monitors of different brands, years of manufacture (spanning 1981-2005) and countries of manufacture. The specimens were analysed for Pb, Cu, Cr, Zn, Cd, and Ni using atomic absorption spectrophotometer after acid digestion. The mean concentrations of metals in the CRTs varied widely: 1400-14300 mg/kg for Pb; 291-1750 mg/kg for Zn |
| Databáze: | OpenAIRE |
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