Wastewater purification process

Details Wastewater purification process Wastewater purification process

1986-08-29

1987-12-01

Castel, Benoit

Liquid purification or separation

Processes

Treatment by living organism

210630, 210631, 210912, 210917, C02F 330

Patent

active

047103019

ABSTRACT:
Wastewater from various sources may be purified by contacting it with sludge derived from an oxidative biological water purification process and subsequently subjected to a complete anaerobic fermentation step followed by a dying-off step. A variety of contaminants such as metals, colorants, detergents, phenols and the like may be absorbed by the sludge in this way and removed from the wastewater by separating the sludge and wastewater after contact. The process may serve as an introductory step to a normal oxidative biological water purification process. In a special embodiment, cationic contaminants are removed from the wastewater with the aid of a sludge of the aforesaid type, while anionic contaminants are removed with the aid of a sludge of the same type that has been pretreated with a cationic detergent.

REFERENCES:
patent: 2359004 (1944-09-01), Schlenz et al.
patent: 4267049 (1981-03-01), Erickson et al.
patent: 4277342 (1981-07-01), Hayes et al.
patent: 4342650 (1982-08-01), Erickson et al.
Dr. Manfred Morper, "Removal of Heavy Metals from Wastewaters by Anaerobic Biosorption", CPP Edition Europe 1985, Sep., pp. 63-67.
Melanie J. Brown and J. N. Lester, "Metal Removal in Activated Sludge: The Role of Bacterial Extracellular Polymers", Public Heath Engineering Laboratory, Imperial College, London, U.K.

Affiliated with

Also associated with

Rating

Wastewater purification process does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1929882