Process for treating sludge and system for the same

Details Process for treating sludge and system for the same Process for treating sludge and system for the same

1995-08-10

1997-04-29

McCarthy, Neil

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Diverse sensing means

210143, 2101981, 210205, 210206, C02F 1114

Patent

active

056245505

ABSTRACT:
Sludge which is supplied from an untreated sludge tank 3 and diluting water from a diluting water supply facility 14 is charged into a continuous kneading mixer 12 for diluting the sludge to make the specific weight of the sludge 1.15 to 1.35. The diluted sludge is supplied to a dehydrating machine 25 in accordance with the capacity of the used dehydrating machine 25. The diluted sludge is firstly added with an inorganic flocculating agent G and is mixed in a first blender 24A and is then added with a high molecular flocculating agent G2 and is mixed in a second blender 24B. Thereafter, the sludge is supplied to a belt press dehydrating machine 25 in which it is subjected to a dehydrating treatment.

REFERENCES:
patent: 4273658 (1981-06-01), Karman
patent: 4336143 (1982-06-01), Abbott
patent: 4439325 (1984-03-01), Blais
patent: 5034137 (1991-07-01), Okamoto et al.
patent: 5093008 (1992-03-01), Clifford, III
patent: 5250189 (1993-10-01), Rey

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