Capture, degradation, and destruction of sulfur bearing compound

Details Capture, degradation, and destruction of sulfur bearing compound Capture, degradation, and destruction of sulfur bearing compound

1996-05-21

1998-06-16

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210679, 210692, 210908, B01D 1504

Patent

active

057664820

ABSTRACT:
A process for capture, degradation, and destruction of a sulfur bearing compound that satisfies the needs for a treatment process that may be used in cartridge, pipeline, and batch, that can handle a large variety of sulfur bearing environmental pollutants, is faster than other methods, and that does not leave dangerous degradation product fractions and residuals in wastewater from the treatment process itself. The present invention is further directed towards a treatment process that is capable of using a safe, dry storable cartridge with small amounts of dry storable mixed resins in a small cartridge, that can fit into a "point of use" pipeline from a contaminated well or point of contaminated "run-off". Dangerous degradation product fractions and residuals in wastewater, are minimized, in order to minimize residual environmental impacts from the treatment process itself. Sulfur bearing compounds are mixed with metals insoluble with the sulfur bearing compounds, reducing agents, and bases. The sulfur bearing compounds to be captured, degraded, and destroyed are reacted with the mixture of metals insoluble with the sulfur bearing compounds, reducing agents, and bases. Fractions are chemically bonded to the mixture, which may be in resin form, utilizing rapid precipitation of the sulfur bearing compound by the insoluble metal in a complex anionic form, in the presence of an anionic reducing agent, which encourages the formation of sulfide anions to aid in precipitation, while continuing rapid alkaline degradation with alkali anions.

REFERENCES:
patent: 3728439 (1973-04-01), Urban
patent: 5021163 (1991-06-01), Anderson et al.
patent: 5232484 (1993-08-01), Pignatello
patent: 5336329 (1994-08-01), Langenmayr
patent: 5354478 (1994-10-01), Ulman et al.
Chasanov, et al., "Ion Exchange Resins as Catalysts in the Decomposition of Sarin," 1958, Journal of Polymer Science, vol. XXXI, pp. 399-414.
Bertan, "Methods for Capturing and Detoxifying Sulfur Containing Environmental Pollutants Using Solid Substrates," Dec. 1, 1994.
Certificate of Registration, U.S. Copyright Office, Aug. 21, 1995.

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