METHOD FOR TREATING OIL-CONTAINING SLUDGE

WIPO Patent Application WO/2001/056939

A1

A method for treating an oil-containing sludge, which comprises contacting the oil-containing sludge with a treating agent containing a quick lime as its primary component, thereby vaporizing and removing water and a part of the oil in the oil-containing sludge through the heat generated by the reaction of the water in the oil-containing sludge with the quick lime in the treating agent and, at the same time, allowing the slaked lime formed by the above reaction in the form of particles to adsorb the residual oil and to form a calcium carbonate layer covering the surface of the particles, to provide powdery and dry particles containing an oil in the interior thereof. The resultant powdery particles provided by the method are free from the leak of an oil and are suitably used for a fertilizer, a flaming aid, a building and civil engineering material, a road material and the like.

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UEFUJI ZENICHIRO (JP)
MATSUURA KAZUMASA (JP)
OHNO TOSHIYUKI (JP)
NAKANO DAIGO (JP)

PCT/JP2001/000751

August 09, 2001

February 02, 2001

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TAIHO IND CO (JP)
UEFUJI ZENICHIRO (JP)
MATSURA KAZUMASA (JP)
OHNO TOSHIYUKI (JP)
NAKANO DAIGO (JP)

C02F11/00; C02F11/14; C05D3/02; C05F17/00; (IPC1-7): C02F11/00; C02F11/14

JPH0824900A	1996-01-30
JPH1099900A	1998-04-21
JPH09141244A	1997-06-03
JPH10165995A	1998-06-23
JPH0852457A	1996-02-27
JPS55149700A	1980-11-21

Fukuda, Kenzo (6-13 Nishishinbashi 1-chome Minato-ku, Tokyo, JP)

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