Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1978-05-30
1979-05-29
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 73R, 210199, 210202, 210203, 210221P, 209164, 209170, B01D 1700, B03D 100
Patent
active
041566483
ABSTRACT:
Methods and apparatus for treating water/wastewater to remove grit, susped and colloidal solids of organic and inorganic nature, microorganisms and surfactants. Dense suspended solids (grit) are first removed by a centrifugation process. The influent water/wastewater is then passed through coagulation and flocculation chambers, an upflow clarifier and a high-rate settling chamber for final sedimentation. Next, the influent passes through a foam filter to remove colloidal particles. The water/wastewater under treatment is then pressurized and saturated with air and subsequently depressurized, causing the dissolved gas to bubble out of solution floating out suspended contaminants. At this point, ozone is introduced into the influent to create a thicker, more dense foam by oxidizing organic matter and for disinfection purposes. The foam floated to the surface of the influent is scraped off and furnishes the foam for the foam filter.
REFERENCES:
patent: 1250303 (1917-12-01), Greenawalt
patent: 1407258 (1922-02-01), Connor
patent: 2757797 (1956-08-01), Eckert
patent: 2793185 (1957-05-01), Albrektsson
patent: 2920763 (1960-01-01), Lind
patent: 2994432 (1961-08-01), Schluter
patent: 3313795 (1967-04-01), Rubin
patent: 3397140 (1968-08-01), Dea
patent: 3932282 (1976-01-01), Ettelt
patent: 3977970 (1976-08-01), Willis
patent: 4053399 (1977-10-01), Donnelly
Hart Charles N.
Sciascia Richard S.
St.Amand Joseph M.
The United States of America as represented by the Secretary of
Therkorn Ernest G.
LandOfFree
Flotation device with pretreatment does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flotation device with pretreatment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flotation device with pretreatment will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-230196