FORFARANDE FOR RENING AV FOSFATHALTIGT AVLOPPSVATTEN

摘要

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 Al2O3 and with respect to phosphate ions.