Process of removing phosphorus and suspended matter from waste w

Details Process of removing phosphorus and suspended matter from waste w Process of removing phosphorus and suspended matter from waste w

1991-04-25

1992-10-13

Hruskoci, Peter

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210639, 210641, 210651, 210725, 210727, 210806, 210906, C02F 156

Patent

active

051548305

ABSTRACT:
Phosphates which are dissolved or contained in suspension are substantially completely removed from a low-solids waste water which has been clarified. Precipitating and flocculating agents for transforming the dissolved phosphated to an undissolved form are added to the low-solids wate water and precipitation products and suspended matter are removed by microsieving through mesh openings in the range of about 10 to 150 .mu.m. Microsieving is preferably effected in two stages including a preliminary sieving through mesh openings from 60 to 150 .mu.m and a fine sieving through mesh openings from 10 to 80 .mu.m.

REFERENCES:
patent: 3398088 (1968-08-01), Okey
patent: 3423309 (1969-01-01), Albertson
patent: 3617569 (1971-11-01), Daniels et al.
patent: 3673083 (1972-06-01), Sawyer et al.
patent: 3733265 (1973-05-01), Kraus et al.
patent: 3835040 (1974-09-01), Mahlman et al.
patent: 4313830 (1982-02-01), Tulin et al.
patent: 4530764 (1985-07-01), Thomas et al.
Handbuch der Wasserversorgungstechnik (manual of water supply technique) pp. 502-509, 550-557, 560/61 Dated: 1985.
Lehr-und Handbuch der Abwassertechnik Band IV (manual of waste water technique) pp. 214, 526-530, 544-549 Dated: 1985.

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