Mechanochemical degradation of chlorinated contaminants in fly ash with a calcium-based degradation reagent

作者：Mitoma Yoshiharu^*; Miyata Hideaki; Egashira Naoyoshi; Simion Alina Marieta; Kakeda Mitsunori; Simion Cristian

来源：Chemosphere, 2011, 83(10): 1326-1330.

DOI：10.1016/j.chemosphere.2011.04.015

• Mechanochemical dechlorination process
• Hydrodechlorination
• PCDDs
• PCDFs and PCBs
• Calcium and calcium oxide

This report presents our results in a low-temperature mechanochemical hydrodechlorination process applied to fly ash coming from a municipal waste incinerator in order to efficiently remove all traces of PCDDs, PCDFs and PCBs. We found that the most suitable degradation agent is a mixture of metallic calcium and calcium oxide. A sample of fly ash presenting a TEQ of 5200 pg g(-1) was completely detoxified (no traces of PCDDs, PCDFs and PCBs detected) after ball-milling at 400 rpm over night.

• 出版日期2011-5