Inertisation By Vitrification Of The Slag Produced During Lead Recover Process At End Of Life Automotive Batteries And Reuse Of The Obtained Glass (In Italian)

Vitrification is a technology used to inertise hazardous toxic waste material. Thanks to this method it can be disposed in landfill sites for inert wastes in compliance with current laws. Vitrification also allows for the successful use of the glass obtained as secondary raw material in some specific manufacturing fields. This article shows the results obtained during a slag inertisation test from the treatment of end-of-life automotive batteries. This test was performed industrially & in laboratory scale. The possibility of using the glass produced as secondary raw material in heavy clay production has also been investigated. Every year in Italy about 200,000/t of end of life automotive batteries are collected. Around 100,000/t of metallic lead (50% of the total National production) are recovered from these batteries by means of thermal treatment.