Liquid purification or separation – Structural installation – Geographic
Patent
1974-02-28
1976-05-04
Wyse, Thomas G.
Liquid purification or separation
Structural installation
Geographic
210241, C02C 104
Patent
active
039546152
ABSTRACT:
Process for treating sewage by using algal photosynthesis for removing cominants from sewage. The sewage is treated in a channelled algae pond while the sewage meanders through the channels in the pond. The process includes integrated day-time and night-time cycles enabling continuous operation over a 24 hour period. An essential step in the process involves varying the flow rate between the day-time and night-time cycles with a cage aerator. The flow rate during the day-time cycle is controlled by the cage aerator so as to increase the amount of algae in the sewage that is exposed to light and bring about nutrient exchange between the bottom and surface of the sewage in the channels without stirring up the sludge in the channels. The rotational speed of the cage aerator is increased during the night-time cycle so as to agitate the sewage to stir up the sludge and beat air into the sewage to increase its oxygen content. Thus the process includes mechanically applying oxygen to the sewage and stirring up the sludge during the night-time cycle with the same apparatus used to increase the exposure of sewage to light during the day-time cycle. The process also includes the step of withdrawing the oxygen rich upper portion of the algae pond during the day-time cycle, enabling the effluent to be treated in an autoflotation unit.
Apparatus for carrying out process.
REFERENCES:
patent: 3033372 (1962-05-01), Riddick
patent: 3462360 (1969-08-01), McKinney
patent: 3470092 (1969-09-01), Bernard
patent: 3534857 (1970-10-01), Berk
patent: 3547811 (1970-12-01), McWhirter
patent: 3589997 (1971-06-01), Grutsch et al.
patent: 3633218 (1972-01-01), Lekberg
patent: 3757950 (1973-09-01), Zebley
patent: 3837492 (1974-09-01), DiBello
patent: 3847811 (1974-11-01), Stengelin
patent: 3855370 (1974-12-01), Dodd
Wyse Thomas G.
Yissum Research Development Company of the Hebrew University of
LandOfFree
Apparatus for sewage treatment and wastewater reclamation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for sewage treatment and wastewater reclamation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for sewage treatment and wastewater reclamation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-677228