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US 4,230,565 AGranted
Method for purifying phosphate containing waste waters
AssigneeKernforschungszentrum Karlsruhe GmbH
InventorsDietfried Donnert, Siegfried Eberle
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Abstract
Process for purifying phosphate containing waste waters in which aluminum oxide is used as the sorption material. The waste water is brought into contact with fine-grained aluminum oxide in a grain size range from 0.05 to 0.2 mm. Simultaneously, a gas is blown in, which is inert with respect to Al.sub.2 O.sub.3 and with respect to phosphate ions.
Claims6
Process for purifying a phosphate containing waste water in which aluminum oxide is used as a sorption material, comprising:
- bringing the waste water into contact in a stirrer reactor, with stirring, with fine-grained aluminum oxide having a grain size range from 0.05 to 0.2 mm, and simultaneously blowing in a gas which is inert with respect to Al.sub.2 O.sub.3 and phosphate ions.
Dependencies are inferred from the claim text.