公开(公告)号：US11795067B2

公开(公告)日：2023-10-24

申请号：US17902922

申请日：2022-09-05

Applicant: IDE WATER TECHNOLOGIES LTD.

Inventor： Boris Liberman ,  Miriam Faigon ,  Vitaly Levitin ,  Gal Greenberg

IPC: C02F1/00 ,  B01D24/12 ,  B01D24/46 ,  A01K79/02 ,  E02B1/00 ,  A01K61/70 ,  E03B3/04 ,  C02F103/08

CPC classification number: C02F1/004 ,  A01K61/70 ,  A01K79/02 ,  B01D24/12 ,  B01D24/4631 ,  B01D24/4636 ,  C02F1/001 ,  E02B1/006 ,  E03B3/04 ,  C02F2103/08 ,  C02F2201/004 ,  C02F2301/04 ,  C02F2303/16 ,  C02F2303/24 ,  Y02A40/81

Abstract: A water intake and pretreatment system (10) comprising an inlet for delivering water from a natural source to a reservoir (12); said inlet to reservoir having a net screen (16) to prevent entry of organisms above a predetermined size and including a one-way gate (30) 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 (40) is included for localized backwashing of the granular filter media.