Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1980-06-09
1982-01-26
Therkorn, Ernest G.
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
210719, 210720, 210724, 210726, 252631, C02F 152
Patent
active
043127584
ABSTRACT:
Process for the treatment of decontamination effluents, more particularly the components of nuclear reactors, of the type containing in solution permanganate, phosphate and sulphate ions and active manganese, chrome and cobalt ions, wherein it comprises the successive stages of reducing the permanganate ions by adding hydrogen peroxide, alkalization to a pH equal to or above 12, separation of the precipitate formed and final acidification of the residual liquid phase to bring its pH to a value compatible with discharge into the environment.
The invention also relates to an apparatus for performing the above process.
REFERENCES:
patent: 2105835 (1938-01-01), Krause
patent: 3013978 (1961-12-01), Rosinski
patent: 3716485 (1973-02-01), Robertson
patent: 3873362 (1975-03-01), Mihram
patent: 4049545 (1977-09-01), Horvath
Berton Yves
Chauvet Pierre
Commissariat a l''Energie Atomique
Meller Michael N.
Therkorn Ernest G.
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