Waste water clarification

Details Waste water clarification Waste water clarification

1988-03-22

1989-11-21

Hruskoci, Peter

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210736, C02F 156

Patent

active

048820709

ABSTRACT:
A process for increasing the efficiency of a primary clarifier in raw waste water clarification by reducing biological oxygen demand and suspended solids by the sequential addition upstream of the primary clarifier of: (1) a salt of a water soluble bi- or tri-valent metal and compositions or mixtures thereof, (2) fly-ash, and (3) a cationic surface active polymer composition comprising a branched, high cationic charge density containing and water soluble polymeric polyether amine solution at the primary clarifier and recovering the clarified effluent from the primary clarifier.

REFERENCES:
patent: 828938 (1906-08-01), Kniffler
patent: 3226319 (1965-12-01), Schick
patent: 3259570 (1966-07-01), Priesing et al.
patent: 3372149 (1968-03-01), Fertig et al.
patent: 3377274 (1968-04-01), Burke et al.
patent: 3388060 (1968-06-01), Clark
patent: 3397139 (1968-08-01), Sak
patent: 3408293 (1968-10-01), Dajani et al.
patent: 3652479 (1972-03-01), Mogelnicki et al.
patent: 3738945 (1973-06-01), Panzer et al.
patent: 4046684 (1977-09-01), Tsunoda et al.
patent: 4178434 (1979-12-01), Langdon
patent: 4179329 (1979-12-01), Suarz
patent: 4217214 (1980-08-01), Dubin
patent: 4411797 (1983-10-01), Sander et al.
patent: 4417976 (1983-11-01), Sander et al.
patent: 4498993 (1985-02-01), Raba et al.
patent: 4761239 (1988-08-01), Wardell

Affiliated with

Also associated with

Rating

Waste water clarification does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Waste water clarification, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Waste water clarification will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1424503