Method for purifying phosphate containing waste waters

Details Method for purifying phosphate containing waste waters Method for purifying phosphate containing waste waters

1978-05-11

1980-10-28

Cintins, Ivars C.

Liquid purification or separation

Processes

Ion exchange or selective sorption

C02B 114

Patent

active

042305659

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.

REFERENCES:
patent: 3754993 (1973-08-01), Oguchi et al.
patent: 3759669 (1973-09-01), Aaron et al.
patent: 4046683 (1977-09-01), Tsunoda et al.
patent: 4080290 (1978-03-01), Klantschi et al.
Ploetz, T., Das Papier, vol. 28, Oct. 1974, pp. 1-5.
Shiao, et al., Journal WPCF, Feb. 1977, pp. 280-285.

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