Patent ID: 9133038
Filing Date: 2015-09-15
Classification: B01J,C01F,C01P,C02F

Abstract:
1. A process of treating a natural water or wastewater including brines or a process water containing dissolved Mg or dissolved Al and one or more contaminant species comprising one or more cationic contaminants and one or more anionic contaminants, the process comprising: the steps of adding at least one Mg-containing compound or at least one Al-containing compound or both to the natural water or wastewater containing the dissolved Mg or dissolved Al and the one or more contaminant species under conditions to form in-situ a layered double hydroxide (LDH), the LDH containing Mg and Al as predominant metal species in a lattice of the LDH whereby the one or more of the cationic contaminants or one or more of the anionic contaminants are incorporated into the lattice of the LDH and an interlayer of the LDH respectively during in situ formation of the LDH to thereby reduce or remove the one or more contaminant species from the natural water or wastewater.