Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1977-11-21
1978-10-31
Spitzer, Robert H.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
55 73, 210 60, 210 63R, 423242, C02B 134, B01D 5334
Patent
active
041233557
ABSTRACT:
A process for simultaneously removing sulfur dioxide from stack gases and the like and purifying waste water such as derived from domestic sewage in which a portion of the gas stream and a portion of the waste water, the latter containing dissolved iron and having an acidic pH, are contacted in a closed loop gas-liquid scrubbing zone to effect absorption of the sulfur dioxide into the waste water. A second portion of the gas stream and a second portion of the waste water are controlled in an open loop gas-liquid scrubbing zone, the second portion of the waste water containing a lesser amount of iron than the first portion of the waste water, contacting in the open loop scrubbing zone being sufficient to acidify the waste water which is then treated to remove solids originally present.
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Collins Dwight D.
Frosch Robert A. Administrator of the National Aeronautics and Space
Poradek Jerry C.
Manning John R.
Matthews Marvin F.
McClenny Carl O.
Spitzer Robert H.
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