FIELD: technological processes.
SUBSTANCE: invention relates to a method of regenerating acrylic resin used for removal and water of organic contaminants. Method comprises providing a plurality of acrylic resin particles having a Hansch calculated value from −0.2 to 0.5, wherein one or more humic acid, one or more fulvic acid or mixture thereof is adsorbed to said acrylic resin. Said set of particles of acrylic resin is then brought into contact with an aqueous solution having pH 10 or higher. Said aqueous solution contains metal cations, hydroxide anions and anions which do not represent hydroxide. Said anions, which are not hydroxide, are present in amount of 0.5 wt % or more in terms of weight of said aqueous solution. Then, the acrylic resin is separated from the obtained mixture.
EFFECT: efficient removal of organic contaminants from acrylic resin.
6 cl, 9 tbl, 14 ex, 4 dwg
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Authors
Dates
2020-08-21—Published
2016-09-14—Filed