Sludge dewatering process using multiple layer plate

Details Sludge dewatering process using multiple layer plate Sludge dewatering process using multiple layer plate

1984-07-11

1986-12-30

Sadowski, David

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210769, 210791, 210800, C02F 152, B01D 2302

Patent

active

046327649

ABSTRACT:
A system for rapidly dewatering sludge in large quantities makes use of a filter plate that is capable of supporting heavy mechanized removal equipment without damage to the filter plate. The filter plate is monolithic and includes granular filter material that is rigidified and bonded together. In the disclosed process, sludge is pretreated with a polymer coagulant that breaks up solids and flocculates the sludge particles. The flocculated sludge is then spread on a bed of filter plates. As the bed is being filled, the large coagulated sludge particles settle and water is drawn off by gravity. A vacuum is then applied to the bed and the sludge is rapidly dewatered. Upon completion of dewatering, front end loading equipment may be used to remove the dried sludge cake from the bed.

REFERENCES:
patent: 421238 (1890-02-01), Bush et al.
patent: 624893 (1899-05-01), Davis
patent: 730518 (1903-06-01), Davis
patent: 931032 (1909-08-01), Bussman
patent: 1081573 (1913-12-01), Boeck
patent: 1117601 (1914-11-01), Porter
patent: 1277832 (1918-09-01), Beckley
patent: 1543939 (1925-06-01), Maclachlan
patent: 1671325 (1928-05-01), Straub
patent: 1884528 (1932-10-01), Benner et al.
patent: 1910758 (1933-05-01), Dundore
patent: 1918893 (1933-07-01), Beckmann
patent: 1987721 (1935-01-01), Straub
patent: 1988478 (1935-01-01), Broadwell et al.
patent: 2018192 (1935-10-01), Sexton
patent: 2155016 (1939-04-01), Kershaw
patent: 2293099 (1942-08-01), Barnes et al.
patent: 2303629 (1942-12-01), Gelinas
patent: 2335749 (1943-11-01), Fraser
patent: 2345827 (1944-04-01), Olin
patent: 2464517 (1949-03-01), Kurtz
patent: 2597217 (1952-05-01), Zenick
patent: 2732078 (1956-01-01), Records
patent: 3011643 (1961-12-01), McCoy
patent: 3056704 (1962-10-01), Rothweiler et al.
patent: 3166615 (1965-01-01), Farrell
patent: 3171804 (1965-03-01), Rice
patent: 3178026 (1965-04-01), Christy
patent: 3196105 (1965-07-01), Schneider
patent: 3279606 (1966-10-01), Cox
patent: 3545622 (1970-12-01), Sakhnovsky
patent: 3587861 (1971-06-01), Ross
patent: 3615019 (1971-10-01), Early, Jr.
patent: 3630384 (1971-12-01), Toda
patent: 3716459 (1973-02-01), Salter et al.
patent: 3771655 (1973-11-01), Hudson, Jr.
patent: 3779910 (1973-12-01), Chatfield
patent: 3847808 (1974-11-01), Spohr
patent: 3959126 (1976-05-01), Millward
patent: 3969248 (1976-07-01), Whitmer
patent: 4081371 (1978-03-01), Yarwood et al.
patent: 4088576 (1978-05-01), Mott
patent: 4186100 (1980-01-01), Mott
patent: 4190534 (1980-02-01), Wyatt
patent: 4208288 (1980-06-01), Stannard et al.
patent: 4309292 (1982-01-01), Stannard et al.
patent: 4340478 (1982-07-01), Stannard et al.
patent: 4381998 (1983-05-01), Roberts et al.
patent: 4382863 (1983-05-01), Riise
patent: 4399042 (1983-08-01), Stannard et al.
patent: 4431549 (1984-02-01), Highstreet et al.
patent: 4452698 (1984-06-01), Roberts et al.
patent: 4481114 (1984-11-01), Riise
"Filtros Underdrain Plates" Bulletin, from Filtros, Inc., East Rochester, New York 5/29/63.
Hackh's Chemical Dictionary (4th ed.), p. 596, J. Grant Editor, McGraw-Hill Book Co., N.Y., 1969.

Affiliated with

Also associated with

Rating

Sludge dewatering process using multiple layer plate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sludge dewatering process using multiple layer plate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sludge dewatering process using multiple layer plate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1546062