Environmental Science and Pollution Research

, Volume 21, Issue 23, pp 13230–13236 | Cite as

Rapid screening of different chelating agents in the lead extraction from cathode ray tube (CRT) funnel glass

  • Luisa Barbieri
  • Isabella Lancellotti
  • Chiara Ponzoni
Chemistry in a sustainable society

Abstract

The cathode ray tube (CRT) glass is one of the most important problem that afflicts the electronic waste disposal whose solution lies in the identification of efficient and ecofriendly processes to detoxify and reutilize lead-contained funnel glass. This study is focused on a rapid screening of different chemical and mechanochemical processes to reduce lead content in waste CRT glass downgrading the risk correlated to it. In particular, as a possibility to clean waste CRT glass, treatments of lead-containing glass with different chelating agents (EDTA, NTA, ATMP, EDTMP and HEDP) were performed to evaluate their extractive capabilities. Furthermore, the influence of the grinding, the chelating agent functional groups (polyamino-carboxylic acid, carboxylic acid, and polyamino phosphonic acid), and the time and the temperature on lead content reduction were analyzed. ESEM and EDS analysis were performed on all the samples to evaluate the lead amount before and after the treatments.

Keywords

WEEE lead-glass Lead extractive method Chelating agents Mechanochemical treatment 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Luisa Barbieri
    • 1
  • Isabella Lancellotti
    • 1
  • Chiara Ponzoni
    • 1
  1. 1.Department of Engineering “Enzo Ferrari”University of Modena and Reggio EmiliaModenaItaly

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