Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1984-06-21
1985-03-26
Therkorn, Ernest G.
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
210709, 210710, 210724, 210738, 71 34, 423305, 423319, 426635, 426807, C02F 152
Patent
active
045072078
ABSTRACT:
The invention relates to the chemical removal of phosphorus compounds from waste water, this waste water being treated with one or more metal compounds, without any problems presenting themselves as regards the separation of the metal phosphate compounds. To achieve this, the waste water is treated with the metal compound in a fluidized bed of metal phosphate particles.
The invention also relates to a process for the purification of waste water in which the effluent from a biological purification is subjected to the above-mentioned method for the removal of phosphorus.
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patent: 3562015 (1971-02-01), Lancy
patent: 3617569 (1971-11-01), Daniels
patent: 3650686 (1972-03-01), Hudson
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patent: 4046683 (1977-09-01), Tsunoda
patent: 4145282 (1979-03-01), Bruckenstein
patent: 4167479 (1979-09-01), Besik
Hawley, The Condensed Chemical Dictionary Eighth Edition, 1971, 158,159,394.
Verhoeve Cornelis W.
Weterings Cornelis A. M
Stamicarbon B.V.
Therkorn Ernest G.
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