Sludge dredging and dewatering process

Details Sludge dredging and dewatering process Sludge dredging and dewatering process

1995-02-08

1996-11-19

Popovics, Robert J.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210732, 210747, 210712, 210768, 210783, 210800, 210805, 37195, 37317, 405 73, C02F 152, E02F 388

Patent

active

055759211

ABSTRACT:
A method is disclosed for remediating ponds and other water sites containing sludge and other waste materials by a dredging and dewatering process which is economical and efficient, uses relatively low cost equipment and provides for high remediation rates. The preferred process dredges the site to produce a sludge which is screened to remove oversize material. The screened sludge is then thickened and the thickened sludge dredged and fed as a uniform thickened sludge mixture to a filter press to dewater the sludge producing a final sludge product having a high solids content. A coagulant is preferably added to the sludge and a polymer and/or coagulant added to the thickened sludge filter press feed.

REFERENCES:
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patent: 5354480 (1994-10-01), Robinson et al.
patent: 5382368 (1995-01-01), Sato
Andritz MSX-S8-LP Continuous Pressure Filter, 2 pages.
Maneuverable Dredger, Model No: Rotomite 142P; Crisafulli Pump Company Drawing CPC-91124B, Dated Jan. 25, 1993.
Mark J. Hammer, Water and Wastewater Technology, .COPYRGT.1986 pp. 244-245.

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