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Ksenia A. Zhidomorova, Dmitriy I. Subbotin
Plasma treatment of
sewage sludge
Abstract
Abstract. The paper describes a method for
processing ash from sewage sludge incineration using plasma technology. The
process involves completely melting the ash and then rapidly cooling it. The
resulting vitrified bottom ash is analyzed for its chemical composition. The
study shows that pre-activating the ash by grinding and then leaching it
significantly reduces the amount of metal oxides in the slag, which is an
effective way to protect the environment.
Key words: plasma treatment, vitrified slag,
leaching, metal oxides
Copyright (C) Chemistry Dept., Moscow State University, 2002
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