Method and system for purifying water

Details Method and system for purifying water Method and system for purifying water

2008-03-18

2008-03-18

Upton, Christopher (Department: 1797)

Liquid purification or separation

Processes

Treatment by living organism

C210S747300, C210S151000, C210S170090, C210S170110, C210S291000, C405S127000

Reexamination Certificate

active

11361865

ABSTRACT:
The disclosed methods and systems of water purification relate to burying an underdrain in situ under a filter media bed such as a particulate material bed, within a natural body of water. A pump is provided for withdrawing water from the underdrain at a sufficient rate to cause a complex biological matrix filter to proliferate on top of the filter media bed forming a portion of the floor of the body of the water. The filter media bed is positioned at a depth d of water between the water body surface and the water body floor so that the upper surface of the particulate material bed remains substantially undisturbed by wave motion or tidal action at the surface of the body of water to facilitate the proliferation of the biological matrix filter.

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