RISK MANAGEMENT MEASURES AGAINST ANTIMONY IN RESIDUE AFTER INCINERATION OF MUNICIPAL TASTE

In this report the basic information needed for risk assessment, conce rning physical properties, toxicity and life-cycle mass flow prior to waste treatment/disposal stage of antimony, was summarized in order to investigate risk management measures against antimony, especially foc using on incineration residue of municipal waste. A rapid and higher-p recision analysis technique for antimony (Sb) was developed and the le aching concentration and content of various fly ash and bottom ash wer e measured with the technique. Evaluation of the potential Sb leaching required measures to prevent Sb from leaching from the fly ash. It wa s pointed out that reducing the Sb content of the ash will lead to eff ective risk reduction. Finally it was emphasized that investigation fo r risk reduction measures over the whole life-cycle of Sb are importan t, and measures in three stages such as production, consumption/discar ding and waste treatment/disposal, were proposed. (C) 1997 Elsevier Sc ience Ltd.