Liquid purification or separation – Processes – Including controlling process in response to a sensed condition
Patent
1990-01-17
1991-02-12
Hruskoci, Peter
Liquid purification or separation
Processes
Including controlling process in response to a sensed condition
210747, 210763, C02F 174
Patent
active
049921819
ABSTRACT:
A method for treating water removed from the ground is disclosed. The treatment reduces the content of noxious sulfur-containing impurities therein before the water is supplied to an associated water system. The method involves the steps of spraying the water to be treated in the upper portion of a standpipe, entraining air with the water which is sprayed in the upper portion of the standpipe, and maintaining a required water level in the standpipe. Spraying the water to be treated in the standpipe causes a flow of water from within the standpipe through a bed of a catalyst for the oxidation of sulfur and sulfur-containing moieties to sulfate anions and from the catalyst bed to the associated water system. The water level maintained in the standpipe is that required to enable the flow of water therefrom through the catalyst bed to the associated water system. The amount of air entrained with the water sprayed in the standpipe and the residence time of the water in the catalyst bed are controlled so that there is a substantially complete oxidation of sulfur and sulfur-containing moieties to sulfate anions before the water is delivered to the associated water system. Water may be supplied to the standpipe from a vessel in which the water has been aerated by spraying the water upwardly in the vessel.
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Hruskoci Peter
Messler Cynthia L.
Purdue David C.
Purdue John C.
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