Method of treatment of waste water containing sulfur compounds

Details Method of treatment of waste water containing sulfur compounds Method of treatment of waste water containing sulfur compounds

1977-06-28

1979-05-15

Spitzer, Robert H.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

55 73, 210 37R, B01D 1506

Patent

active

041546733

ABSTRACT:
Waste water issued from a wet type desulfurization apparatus and containing thionic acid ions is introduced into ion-exchange towers filled with weak-basic anion-exchange which has to effect anion exchange therein. The weak-basic anion-exchange resin which has adsorbed the thionic acid ions is desorbed by contacting an alkaline solution. The thionic acid ions included in the desorbing solution are decomposed by heating them in the presence of acid. A decomposed solution is issued out of the system after its neutralization.

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patent: 3661775 (1972-05-01), Miyahara et al.
patent: 3833710 (1974-09-01), Deschamps et al.
Yost et al., The Decomposition & Oxidation of Dithionic Acid, J. of Amer. Chem. Soc., vol. 49, 3/1927, pp. 703-707.

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