US 12,304,839 B2
System and method for remineralizing a fluid
Sarah Farley, Minnetonka, MN (US); Robert Orvin Crowder, Lino Lakes, MN (US); and Mohan R. Khadilkar, Plymouth, MN (US)
Assigned to Pentair Residential Filtration, LLC, Brookfield, WI (US)
Filed by Pentair Residential Filtration, LLC, Brookfield, WI (US)
Filed on Oct. 2, 2020, as Appl. No. 17/061,830.
Claims priority of provisional application 62/910,752, filed on Oct. 4, 2019.
Prior Publication US 2021/0101809 A1, Apr. 8, 2021
Int. Cl. C02F 1/68 (2023.01); C02F 1/00 (2023.01); C04B 9/00 (2006.01); C02F 1/44 (2023.01); C04B 111/00 (2006.01); C04B 111/40 (2006.01)
CPC C02F 1/688 (2013.01) [C02F 1/001 (2013.01); C02F 1/008 (2013.01); C04B 9/00 (2013.01); C02F 1/441 (2013.01); C02F 2201/005 (2013.01); C02F 2209/10 (2013.01); C02F 2209/40 (2013.01); C04B 2111/00284 (2013.01); C04B 2111/40 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus for re-mineralizing an aqueous solution, the apparatus comprising:
a mineralization unit having an inlet to receive a permeate stream, a cementitious material disposed within the mineralization unit to mineralize the permeate stream to generate a mineralized stream having a total dissolved solid (TDS) content that is greater than the permeate stream, and an outlet to discharge the mineralized stream,
the cementitious material including a first magnesium-containing compound, a second magnesium-containing compound, water present in the composition in an amount sufficient such that the composition sets to the cementitious material, the water being present in the composition at a total weight percent of at least 20% (w/w), and
the cementitious material designed to dissolve in the aqueous solution and being substantially free of a water-resistant modifier,
wherein a total weight percent of CaCO3 present in the cementitious material is less than 5% (w/w).