I.d.e. Technologies Ltd.

Ide Water Technologies Ltd.

Vitaly Levitin

Boris Liberman

Gal Greenberg

Miriam Faigon

A water intake and pretreatment system () comprising an inlet for delivering water from a natural source to a reservoir (); said inlet to reservoir having a net screen () to prevent entry of organisms above a predetermined size and including a one-way gate () to allow organisms to exit the reservoir; said reservoir further comprising a granular filter media for water and algae filtration; and a drainage layer for removal of filtered water from the granular filter media to a drainage outlet. A local backwashing apparatus () is included for localized backwashing of the granular filter media.

Environmentally friendly water intake and pretreatment system

Locally backwashing portions of filter media allows a simple and effective design of intake and pretreatment units, as well as their integration. An enclosure is used to limit portions of filter media and backwash them locally by suction, utilizing filtered water from adjacent filter media as the back wash water. Wastewater is produced at small amounts that allows efficient sludge treatment. This design enables water pretreatment at the intake unit, simplifying overall plant design and preventing damage to organisms living outside the intake unit.

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Haifa, Israel

Vitaly Levitin