Flow-through media

Liquid purification or separation – Processes – Treatment by living organism

Reexamination Certificate

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Details

C210S619000, C210S150000, C261SDIG007, C435S299100

Reexamination Certificate

active

06852227

ABSTRACT:
A flow-through medium for use in a biological digester has a truncated conical shape, a plurality of internal ribs, and optional external ribs. The conical shape of the media creates a venturi-like action for fluid flowing through the media, which increases the tumbling of the media elements against each other and against the wall of the enclosure in which they are contained. Moreover, the conical shape and venturi-like action prevents slough from accumulating within the media elements, allowing it to be washed through the media.A method of treating sewage effluent includes placing the media elements in an enclosure partially submersed in the effluent and rotating the enclosure to expose the media to the effluent and to a source of oxygen.

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