METHOD OF THERMALLY PROCESSING METAL-CONTAINING SLUDGES Russian patent published in 1997 - IPC

Abstract RU 2078061 C1

FIELD: utilization of wastes. SUBSTANCE: sludges containing toxic heavy metals are dehydrated by way of thermal drying to moisture not more than 0.5% with subsequent disintegration to grains not larger than 1 mm and calcination in protective medium of exogenous gas at 600-900 C. EFFECT: raw for building material obtained. 3 cl, 1 tbl

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RU 2 078 061 C1

Authors

Zemljanukhin A.V.

Neumeecheva S.N.

Basova G.M.

Alekseev V.D.

Chubirko M.I.

Dates

1997-04-27—Published

1993-10-14—Filed