Oxidation process for improving the environmental quality of wat

Details Oxidation process for improving the environmental quality of wat Oxidation process for improving the environmental quality of wat

1975-03-04

1976-06-15

Hart, Charles N.

Liquid purification or separation

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

Responsive to fluid flow

423544, C02C 504

Patent

active

039636119

ABSTRACT:
A method is disclosed wherein a water stream is improved by oxidizing sulfur and/or the sulfur content of sub-six-sulfur-containing impurities in the stream to sulfate. In the method, the stream is contacted with molecular oxygen under particular conditions which include an elevated temperature, a substantial oxygen gas partial pressure, a pH of at least 9.6 and the substantial absence of a heavy metal oxidation catalyst. For each gram atom of sub-six sulfur, the contact mixture must contain at least one equivalent of a strong inorganic base such as sodium hydroxide.

REFERENCES:
patent: 3186942 (1965-06-01), Benger
patent: 3761409 (1973-09-01), McCoy et al.
Martin et al.; "New Column Removes Sulphide With Air," Hydrocarbon Processing & Petroleum Refinery, May, 1962, vol. 61, No. 5, pp. 169-153.
Gurnham, F. C.; "Industrial Wastewater Control," Academic Press N.Y. 1965, p. 296.

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