Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1979-04-12
1980-04-29
Castel, Benoit
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 8, 210 11, 210 18, C02C 510
Patent
active
042005230
ABSTRACT:
Sulfate ions contained in aqueous streams essentially free of organic carbon such as sulfuric acid streams are converted into more recoverable form by subjecting the stream to the action of sulfate-reducing bacteria in an inorganic, anaerobic system in the presence of an excess of calcium carbonate and converting the resultant sulfide ions into an undissolved vapor or solid phase to facilitate recovery.
REFERENCES:
patent: 3300404 (1967-01-01), Howe et al.
patent: 3740331 (1973-06-01), Anderson et al.
Postgate, J., "Sulphate Reduction by Bacteria"; Annual Review of Microbiology 13; pp. 505-520 (1959).
Tuttle, J. H. et al.; "Sulphate Reduction in Acid Mine Water"; Appl. Microbiology, vol. 17, No. 2, pp 297-302 (Feb. 1969).
Chambers, L. A. et al.; "Thiosulfate and Trithionate Intermediates"; Journal of Bacteriology; vol. 123, No. 1; pp. 36-40 (Jul. 1975).
Tuttle, J. H. et al.; "Sulfur Reduction by Marine Bacteria"; Journal of Bacteriology; vol. 115; pp. 732-737 (Sep. 1973).
Castel Benoit
E. I. Du Pont de Nemours and Company
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