Treatment of water

Details Treatment of water Treatment of water

2007-10-23

2007-10-23

Barry, Chester T. (Department: 1724)

Liquid purification or separation

Processes

Treatment by living organism

C210S611000, C210S739000, C210S532100, C210S532200

Reexamination Certificate

active

10514915

ABSTRACT:
A process for treating sulphide-containing water includes maintaining a steep redox potential gradient in an interface zone of the sulphide-containing water. The water is exposed to an oxygen-containing environment, and the interface zone is located immediately below the surface of the water. Sulphide in the water is biologically oxidized, in the interface zone, to sulphur. The sulphur may be removed by settling, thereby achieving a final removal of sulphur compounds.

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patent: 6221652 (2001-04-01), Janssen et al.
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