Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1980-05-01
1982-05-18
Marantz, Sidney
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
127 33, 106210, B01D 2101
Patent
active
043304095
ABSTRACT:
Hydrolyzed wheat, corn, and potato starches are effective flocculants in destabilizing dilute as well as thick sludge suspensions. These starches are equal to, or better than, the synthetic polyacrylamide flocculants in destabilizing sludge suspensions, particularly when used in the treatment of bituminous tar sands tailings.
The hydrolyzed wheat starch is especially effective when first contacted with metal salts such as salts containing calcium, aluminum and phosphate ions, and most particularly when first treated with a combination of such salt, formed in situ, and a lower aliphatic alcohol.
Among the potato starch flocculants which were found to be generally better than the corn starch flocculants, those containing AlPO.sub.4 were the best. Potato starch flocculants are equally effective on oil-removed and no-oil-removed sludge suspensions.
It also has been found that when cement is added together with the aforedescribed composition, there is achieved improved permeability and shear strength of the resulting sludge.
REFERENCES:
patent: 1862265 (1932-06-01), Henry
patent: 2051983 (1936-08-01), Campbell
patent: 2085828 (1937-07-01), Rice
patent: 2264448 (1941-12-01), Moller
patent: 2264448 (1941-12-01), Moller
patent: 2362409 (1944-11-01), Samuel
patent: 2374676 (1945-05-01), Gardner
patent: 2468207 (1949-04-01), Kerr
patent: 2585651 (1952-02-01), Hart
patent: 2619428 (1952-11-01), Kerr
patent: 2660303 (1953-11-01), Haseman
patent: 2806026 (1957-09-01), Evans
patent: 2975124 (1961-03-01), Coldwell
patent: 2993041 (1961-07-01), Sietsema
patent: 2995513 (1961-08-01), Paschall
patent: 3117892 (1964-01-01), Patel
patent: 3127239 (1964-03-01), Cook
patent: 3142637 (1964-07-01), Cook
patent: 3264174 (1966-08-01), Aitken
patent: 3455715 (1969-07-01), Niilo-Ramd
patent: 3575868 (1971-04-01), Galvin
patent: 3640842 (1972-02-01), Hullinger
patent: 3901878 (1975-08-01), Hunt
patent: 3962079 (1976-06-01), Hunt
patent: 3977897 (1976-08-01), Wurzburg
patent: 4040862 (1977-08-01), Voigt
Sethi Amar J.
Yong Raymond N.
Hess J. Edward
Johnson Donald R.
Lipsitz Paul
Marantz Sidney
Suncor Inc.
LandOfFree
Destabilization of sludge with hydrolyzed starch flocculants does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Destabilization of sludge with hydrolyzed starch flocculants, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Destabilization of sludge with hydrolyzed starch flocculants will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-485777