Method and apparatus for controlling sludge dewatering

Details Method and apparatus for controlling sludge dewatering Method and apparatus for controlling sludge dewatering

1992-06-10

1995-01-17

McCarthy, Neil

Liquid purification or separation

Constituent mixture variation responsive

210143, 210149, 210709, 210742, 210746, B01D 2130, C02F 1114

Patent

active

053823567

ABSTRACT:
The feature of the present invention resides in that when a polyelectrolyte coagulant is added to sludge to dewater the sludge in a sewage treatment plant, the dosage level of the polyelectrolyte coagulant to be to the sludge is controlled most properly, whereby moisture content of dewatered cake can be minimized. This control can be achieved by feeding the coagulant to a sludge feed pipe (3) by means of a coagulant feed pump (6) to carry out a coagulation reaction, dewatering tie sludge by a dewatering means (4), measuring a capillary suction time (CST) of the resultant filtrate (8) by a CST measuring means (10), and then controlling the addition of the coagulant by the coagulant pump (6) so that the filtrate CST value may be minimized

REFERENCES:
patent: 3393149 (1968-07-01), Conley et al.
patent: 4396513 (1983-08-01), Haldeman
patent: 5000860 (1991-03-01), Drewry

Affiliated with

Also associated with

Rating

Method and apparatus for controlling sludge dewatering does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for controlling sludge dewatering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for controlling sludge dewatering will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-745557