US 12,325,652 B2
Method, system and stable for phosphate recovery from a waste stream
Christopher Schott, Leeuwarden (NL); Jorge Ricardo Apolinaro Macedo Bachert Da Cunha, Leeuwarden (NL); Renata Doroethea Van Der Weijden, Leeuwarden (NL); and Cees Jan Nico Buisman, Leeuwarden (NL)
Assigned to KONINKLIJKE OOSTERHOF-HOLMAN BEHEER B.V., Grijpskerk (NL)
Appl. No. 17/793,169
Filed by Koninklijke Oosterhof-Holman Beheer B.V., Grijpskerk (NL)
PCT Filed Jan. 22, 2021, PCT No. PCT/NL2021/050039
§ 371(c)(1), (2) Date Jul. 15, 2022,
PCT Pub. No. WO2021/150112, PCT Pub. Date Jul. 29, 2021.
Claims priority of application No. 2024746 (NL), filed on Jan. 23, 2020; and application No. 2025387 (NL), filed on Apr. 21, 2020.
Prior Publication US 2023/0059525 A1, Feb. 23, 2023
Int. Cl. C02F 9/00 (2023.01); C01B 25/26 (2006.01); C02F 11/04 (2006.01); C02F 11/12 (2019.01); C02F 11/18 (2006.01); C05F 3/00 (2006.01); C05F 17/10 (2020.01); C05F 17/40 (2020.01); C05F 17/50 (2020.01); C02F 1/20 (2023.01); C02F 1/74 (2023.01); C02F 3/28 (2023.01); C02F 3/34 (2023.01); C02F 11/125 (2019.01); C02F 11/126 (2019.01); C02F 11/145 (2019.01); C02F 101/10 (2006.01); C02F 101/16 (2006.01); C02F 103/20 (2006.01)
CPC C02F 9/00 (2013.01) [C01B 25/26 (2013.01); C01B 25/265 (2013.01); C05F 3/00 (2013.01); C05F 17/15 (2020.01); C05F 17/40 (2020.01); C05F 17/50 (2020.01); C02F 1/20 (2013.01); C02F 1/74 (2013.01); C02F 3/28 (2013.01); C02F 3/341 (2013.01); C02F 11/04 (2013.01); C02F 11/125 (2013.01); C02F 11/126 (2013.01); C02F 11/145 (2019.01); C02F 11/18 (2013.01); C02F 2101/101 (2013.01); C02F 2101/105 (2013.01); C02F 2101/16 (2013.01); C02F 2103/20 (2013.01); C02F 2209/02 (2013.01); C02F 2209/06 (2013.01); C05F 17/10 (2020.01); Y02A 40/20 (2018.01); Y02E 50/30 (2013.01); Y02P 20/145 (2015.11); Y02W 30/40 (2015.05)] 20 Claims
OG exemplary drawing
 
1. A method for phosphate recovery from a waste stream, comprising the steps of:
providing a tank reactor;
providing acidogenic bacteria and/or acetogenic bacteria and providing the waste stream to the tank reactor;
hydrolysing the waste stream, and forming a reaction mixture with a compound comprising phosphate;
providing a gas flow to the reaction mixture for removing carbon dioxide from the reaction mixture;
providing the reaction mixture to an anaerobic sludge reactor;
removing the compound comprising phosphate from the reaction mixture within the anaerobic sludge reactor; and
removing gas from the reaction mixture within the anaerobic sludge reactor.