| 摘要 |
The present disclosure relates, according to some embodiments, to systems and methods for removal of contaminants from water including, but not limited to, industrial wastewater, brackish water, municipal wastewater, drinking waters, and particularly waters obtained from fracking operations. For example, a method for purifying a feed water composition may comprise (a) contacting the feed water composition with soluble permanganate ions (MnO4−) to form a permanganate-treated feed water composition; (b) increasing the pH of the permanganate-treated feed water composition sufficient to form a contaminant precipitate and an alkaline solution; (c) separating the alkaline solution and the contaminant precipitate, forming a supernatant; (d) filtering the supernatant to form a first eluate and a first filtrate comprising suspended solids; (e) lowering the pH of the first eluate to form a reduced pH first eluate; (f) filtering the reduced pH first eluate through activated carbon to form a second eluate; and/or (g) exposing the second eluate to ultraviolet (UV) light and separating any precipitate formed from the treated water, wherein the treated water is purified relative to the feed water composition. |
