Article ID Journal Published Year Pages File Type
4411169 Chemosphere 2011 5 Pages PDF
Abstract

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.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► There are few mechanochemical hydrodechlorination processes, using mainly CaO. ► PCDDs/PCDFs/PCBs polluted fly ash ball-milling with Ca/CaO yields zero Cl content. ► MDP is carried out at room temperature, affording a limited amount of waste.

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