US 12,168,615 B1
Method and system for sustainable brine treatment and heavy metal purification using recycled carbon fiber
Ameera Mohammad, Al Ain (AE); Salem Alzahmi, Al Ain (AE); Fatemeh Bahaeddin, Al Ain (AE); and Waleed Ahmed, Al Ain (AE)
Assigned to UNITED ARAB EMIRATES UNIVERSITY, Al-Ain (AE)
Filed by United Arab Emirates University, Al Ain (AE)
Filed on Mar. 5, 2024, as Appl. No. 18/595,901.
Int. Cl. C02F 1/28 (2023.01); B01D 53/04 (2006.01); B01D 53/10 (2006.01); C02F 1/26 (2023.01); C02F 1/62 (2023.01); C02F 101/20 (2006.01)
CPC C02F 1/283 (2013.01) [B01D 53/04 (2013.01); B01D 53/10 (2013.01); C02F 1/265 (2013.01); C02F 1/62 (2013.01); B01D 2253/102 (2013.01); B01D 2253/304 (2013.01); B01D 2257/504 (2013.01); C02F 2101/20 (2013.01); C02F 2303/16 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of reducing the salinity of brine and capture CO2, the method comprising the steps of:
thermally recycling carbon fibers and mechanically reducing the recycled carbon fibers;
employing a chemical surface activation process for the mechanically reduced carbon fibers, resulting in chemically activated recycled carbon fibers; and
exposing the chemically activated recycled carbon fibers along with brine solution to CO2 gas, resulting in the chemically activated recycled carbon fibers selectively recovering contaminants or salts from the brine solution,
wherein capturing/adsorption of CO2 molecules is also performed by the activated recycled carbon fibers during the recovery of the contaminants or salts from the brine solution.