Open AccessRESEARCH ON TOXICITY EVALUATION OF WASTE INCINERATION RESIDUES OF PRINTED CIRCUIT BOARDS / ELEKTRONIKOS PLOKŠČIŲ PELENŲ TYRIMAI IR JŲ PAVOJINGUMO VERTINIMAS
Author(s) -
Rasa Volungevičienė,
Violeta Bolutienė,
Kęstutis Buinevičius
Publication year - 2014
Publication title -
mokslas - lietuvos ateitis
Language(s) - English
Resource type - Journals
eISSN - 2029-2341
pISSN - 2029-2252
DOI - 10.3846/mla.2014.55
Subject(s) - incineration , hazardous waste , waste management , printed circuit board , leaching (pedology) , toxicity characteristic leaching procedure , bottom ash , pyrolysis , engineering , chemistry , environmental science , materials science , environmental chemistry , soil water , fly ash , electrical engineering , soil science
Recycling waste printed circuit boards (PCB) is an extremely complicated process, because PCBs consist of a number of complex components – hazardous and non-hazardous materials sets. Pyrolysis and combustion are currently the most effective treatment technologies for waste printed circuit boards. Pyrolysis can be used for thermally decomposing PCBs allowing for the simultaneous recovery of valuable materials. Following the extraction of valuable materials, the problem of residual ash utilization is encountered. Determining the qualitative and quantitative characteristics of incineration residue helps with choosing effective ash management technologies. This paper analyzes PCB ash generated at three different temperatures of 400 °C, 500 °C and 600 °C. Ash residues have been analysed to determine the quantity and type of metals present. Furthermore, the experiment of leaching heavy metals from ash has been described