Title:
METHOD FOR DREDGING LAYING-UP SLUDGE
Document Type and Number:
Japanese Patent JPS62197199
Kind Code:
A
Abstract:
PURPOSE: To enhance economical advantage by adding inorganic aggregating agent or organic aggregating agent to laying-up sludge collected from underwater, aggregating, centrifugally sedimenting and dehydrating.
CONSTITUTION: Inoragnic aggregating agent such as aluminum sulfate or the like or organic high-molecular aggregating agent is added to laying-up sludge with 80W90% water content and aggregated. Next, the same is dehydrated by a continuous centrifugal sedimentation device or the like to turn into dehydrated sludge with lowered water content. Thus dehydrated sludge usable for reclamation work is prepared and economical advantage in treatment is markedly enhanced.
More Like This:
Inventors:
KANEKO KYOZO
Application Number:
JP3867486A
Publication Date:
August 31, 1987
Filing Date:
February 24, 1986
Export Citation:
Assignee:
KANEKO KYOZO
International Classes:
C02F11/14; E02F3/88; (IPC1-7): C02F11/14; E02F3/88
Domestic Patent References:
| JPS5383973A | 1978-07-24 | |||
| JPS5418864A | 1979-02-13 | |||
| JPS61257256A | 1986-11-14 |