Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1977-06-15
1979-10-30
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 11, 210 17, 210 18, 210 40, 210 44, C02C 106, C02C 510
Patent
active
041727819
ABSTRACT:
Disclosed is a waste water process for the treatment of strong wastes. Generally the process comprises an activated sludge process for the purification of waste water comprising: feeding the waste water to a first aeration zone wherein oxygen is introduced into the waste water, and said waste water is contacted with activated sludge; passing the effluent from the first aeration zone to a first clarification zone where the water from the first aeration zone is clarified to separate suspended sludge particles from partially decontaminated water; recycling a portion of the separated sludge from the first clarification zone to the first aeration zone and passing the partially decontaminated water from the first clarification zone to a second aeration zone; adding about 5 to about 500 ppm powdered activated carbon to the partially decontaminated water from the first clarification zone; oxygenating the partially decontaminated water containing carbon in a second aeration zone wherein oxygen or air is introduced into the partially decontaminated water; passing the effluent from the second aeration zone to a second clarification zone where the water from the second aeration zone is clarified to separate suspended sludge and carbon particles from decontaminated water; and recycling a portion of the separated sludge and carbon from the second clarification zone to the second aeration zone and passing decontaminated water out of the second clarification zone. Preferably said first aeration zone comprises a multiple stage aeration zone wherein waste water is aerated to introduce oxygen into the waste water in a first stage and the effluent from the first stage is aerated in one or more stages downstream of said first stage.
REFERENCES:
patent: 2059286 (1936-11-01), Stathan
patent: 2368055 (1945-01-01), Walker
patent: 3218253 (1965-11-01), Clarke
patent: 3377271 (1968-04-01), Cann
patent: 3551203 (1970-12-01), Corson et al.
patent: 3617539 (1971-11-01), Grutsch et al.
patent: 3730881 (1973-05-01), Armstrong
patent: 3763040 (1973-10-01), Timpe et al.
patent: 3764524 (1973-10-01), Stankewich
patent: 3803029 (1974-04-01), Blecharczyk
patent: 3904518 (1975-09-01), Hutton
patent: 3957632 (1976-05-01), Knopp et al.
patent: 4005011 (1977-01-01), Sweeny
patent: 4053396 (1977-10-01), Trense
patent: 4073722 (1978-02-01), Grutsch et al.
Grutsch James F.
Mallatt Russell C.
Walk Joe D.
Gilkes Arthur G.
Hart Charles N.
McClain William T.
Sroka Frank J.
Standard Oil Company (Indiana)
LandOfFree
Waste water process for treatment of strong wastes 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 process for treatment of strong wastes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Waste water process for treatment of strong wastes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-19267