Recent development of recycling lead from scrap CRTs: A technological review.
Waste Manag
; 57: 176-186, 2016 Nov.
Article
em En
| MEDLINE
| ID: mdl-26365873
ABSTRACT
Cathode ray tubes (CRTs) contain numerous harmful substances with different functions. Lead is found in the funnel glass of CRTs. Improperly treated toxic lead may pose significant risks to human health and the environment. This paper reviews and summarizes existing technological processes on the recycling of lead from waste CRTs, including pyrometallurgy, hydrometallurgy, and product-regeneration. The present situation, advantages, and disadvantages of these techniques are described in detail. Generally, pyrometallurgy shows better practicability in recovery lead from waste CRT than hydrometallurgy and hydrometallurgy, in view of environmental impact, energy-consumption, product formats and safety and maturity of technology. Moreover, the gaps in the existing technologies were identified and recommendations for future research were provided.
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Tubo de Raio Catódico
/
Reciclagem
/
Resíduo Eletrônico
Tipo de estudo:
Guideline
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article