Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1978-12-15
1980-05-13
Castel, Benoit
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 14, 210197, 261 36R, 261119R, C02C 110
Patent
active
042027624
ABSTRACT:
Waste water containing suspended biologically active sludge and circulating in an endless path in a vessel is aerated by withdrawing a stream of the water and recycling it to the vessel in the form of a plurality of downwardly directed jets which penetrate the water surface and thereby entrain air in the water. The jets are directed onto the water surface at an angle of less than 60.degree. and the horizontal component of the motion of the jets is substantially parallel to the recirculation path of the main body of water at the point of impact. The jets are divided regularly over the water surface of the vessel and the energy being imparted to the total number of water jets being at least 2 W per m.sup.3 of water contained in the vessel.
REFERENCES:
patent: 1734011 (1929-10-01), Harrison
patent: 2126164 (1938-08-01), Anderson
patent: 2633436 (1953-03-01), Martin
patent: 3997437 (1976-12-01), Prince et al.
Fontein Freerk J.
Jennekens Hubertus F.
Castel Benoit
Stamicarbon B.V.
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