US 9,809,475 B2
Accumulated residue removal from carriers used in a water treatment system
Nir Assulin, Kiryat Tivon (IL); Shmuel Eliraz, Sde Gat (IL); and Ohad Reinhartz, Beit Yehoshua (IL)
Assigned to Aqwise-Wise Water Technologies Ltd, Herzlia (IL)
Appl. No. 14/399,349
Filed by Aqwise—Wise Water Technologies Ltd, Herzliya (IL)
PCT Filed May 7, 2013, PCT No. PCT/IL2013/050391
§ 371(c)(1), (2) Date Nov. 6, 2014,
PCT Pub. No. WO2013/168155, PCT Pub. Date Nov. 14, 2013.
Claims priority of provisional application 61/643,397, filed on May 7, 2012.
Prior Publication US 2015/0083166 A1, Mar. 26, 2015
Int. Cl. B01D 24/46 (2006.01); B01D 29/70 (2006.01); B01D 41/00 (2006.01); C02F 3/08 (2006.01); C02F 3/22 (2006.01); B03B 5/02 (2006.01); B03B 5/62 (2006.01); B08B 3/10 (2006.01); B08B 7/02 (2006.01); C02F 101/00 (2006.01); B08B 9/08 (2006.01)
CPC C02F 3/087 (2013.01) [B03B 5/02 (2013.01); B03B 5/623 (2013.01); B08B 3/10 (2013.01); B08B 3/104 (2013.01); B08B 7/02 (2013.01); C02F 3/08 (2013.01); C02F 3/223 (2013.01); B08B 9/08 (2013.01); B08B 9/0856 (2013.01); C02F 2101/00 (2013.01); C02F 2203/006 (2013.01); C02F 2303/16 (2013.01); C02F 2303/20 (2013.01); C02F 2303/22 (2013.01); Y02W 10/15 (2015.05)] 17 Claims
OG exemplary drawing
 
1. A water treatment system comprising:
an enclosure for water to be treated;
a multiplicity of biomass carriers located within said enclosure;
at least one airlift comprising a pipe extending upward from a location near a bottom end of said enclosure and configured to raise water and biomass carriers from said enclosure; and
at least one mechanical biomass carrier accumulated residue removal apparatus located above the airlift and configured to receive the biomass carriers raised by the airlift, wherein the residue removal apparatus comprises:
a rotatable drive shaft;
lifting vanes fixed to the drive shaft to lift the raised biomass carriers and separate the raised biomass carriers from the raised water; and,
radially extending bats fixed to the drive shaft and located above the lifting vanes to impact lifted biomass carriers and to remove accumulated residue from said biomass carriers.