US 12,304,843 B2
Phosphorous extraction and recovery system
Lee Blaney, Baltimore, MD (US); Utsav Shashvatt, Baltimore, MD (US); and Charles Portner, Baltimore, MD (US)
Assigned to UNIVERSITY OF MARYLAND, BALTIMORE COUNTY, Baltimore, MD (US)
Filed by UNIVERSITY OF MARYLAND, BALTIMORE COUNTY, Baltimore, MD (US)
Filed on Apr. 4, 2022, as Appl. No. 17/712,455.
Application 17/712,455 is a continuation of application No. PCT/US2019/054755, filed on Oct. 4, 2019.
Prior Publication US 2022/0227652 A1, Jul. 21, 2022
Int. Cl. C02F 11/121 (2019.01); B01D 33/03 (2006.01); B01J 8/00 (2006.01); B01J 10/00 (2006.01); B01J 19/18 (2006.01); C02F 1/20 (2023.01); C02F 1/52 (2023.01); C02F 101/10 (2006.01); C02F 101/16 (2006.01); C02F 103/20 (2006.01)
CPC C02F 11/121 (2013.01) [B01D 33/03 (2013.01); B01J 8/005 (2013.01); B01J 10/002 (2013.01); B01J 19/18 (2013.01); C02F 1/20 (2013.01); C02F 1/5209 (2013.01); C02F 1/5236 (2013.01); C02F 1/5281 (2013.01); C02F 2101/105 (2013.01); C02F 2101/16 (2013.01); C02F 2103/20 (2013.01); C02F 2301/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A phosphorus extraction and recovery system (PEARS) system comprising:
(a) a reaction vessel comprising a mixer and a gas diffuser positioned within the reaction vessel, wherein the reaction vessel and the mixer are substantially inert to both an acidic solution and a basic solution;
(b) at least one solid-liquid separation module in fluid communication with the reaction vessel, wherein the at least one solid-liquid separation module separates contents of the reaction vessel into a substantially solid fraction and a substantially liquid fraction;
(c) at least one container in communication with at least one solid-liquid separation module, wherein the substantially solid fraction from the at least one solid-liquid separation module is collected in the at least one container; and
(d) a liquid conduit connecting the reaction vessel to at least one solid-liquid separation module for directing the substantially liquid fraction from at least one solid-liquid separation module to the reaction vessel,
wherein the reaction vessel is devoid of any solid-liquid separator comprising a membrane.