Process of dewatering sludge-type material and installation for

Details Process of dewatering sludge-type material and installation for Process of dewatering sludge-type material and installation for

1977-07-05

1980-03-11

Hart, Charles N.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 60, 210 66, 210735, 210 74, B01D 1708, C02C 300

Patent

active

041927435

ABSTRACT:
There is disclosed a process of dewatering sludge and other materials of that kind. The process provides that the raw sludge and a flocculating agent are first mixed by suitable means, then fed into a rotary filter drum or similar device to effect thickening of the sludge and partial dewatering thereof. The now thickened sludge is then conveyed through a filtering assembly in which the sludge is subjected to further dewatering forces, which could be vacuum, centrifugal, static pressure, or pressure while moving along the filter surfaces, thereby further dewatering the sludge. The filtrate discharged from the filter drum and the second filtering assembly and also wash water used for cleaning the filter surfaces in the filter drum and the second filtering assembly are at least partly returned to the filter drum to effect total flocculation and recapture of sludge particles contained in the filtrate and the wash waters.
There is also disclosed an installation for carrying out the dewatering process.
There is further disclosed a process and installation for partial dewatering of sludge in a drum filter or similar device, wherein the solids in the wash water used to wash the drum filter means are recaptured within the sludge in the drum, before the thickened sludge or filtrate are discharged.

REFERENCES:
patent: 2450522 (1948-10-01), North
patent: 3401801 (1968-09-01), Wedemeyer et al.
patent: 3577341 (1971-05-01), Keith, Jr. et al.
patent: 3774760 (1973-11-01), Beristain et al.
patent: 3875052 (1975-04-01), Lonchamp et al.
patent: 3875319 (1975-04-01), Seckler et al.

Affiliated with

Also associated with

Rating

Process of dewatering sludge-type material and installation for does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process of dewatering sludge-type material and installation for , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of dewatering sludge-type material and installation for will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1999973