A method for recovering water from purified terephthalic acid production wastewater, comprising: producing purified terephthalic acid comprising purified terephthalic acid feedstock and wastewater comprising impurities; separating the purified terephthalic acid feedstock from the wastewater comprising impurities; transferring the wastewater to a tank; adjusting the pH of the wastewater with a basic solution; adjusting the temperature of the wastewater; passing the wastewater to a column; contacting the wastewater with an ion exchange resin to remove the impurities, wherein the impurities removed from the wastewater comprise para-toluic acid, trimellitic acid, terephthalic acid, orthophthalic acid, benzoic acid, acetic acid, 4-carboxybenzaldehyde, or a combination comprising at least one of the foregoing; and recovering the water depleted of impurities, wherein the pH of the wastewater is adjusted to 4 to 10 with the basic solution, preferably wherein the pH of the wastewater is adjusted to 5 to 9, and wherein at least one of the ion exchange resin separates aromatic carboxylic acids from aliphatic carboxylic acids; or the ion exchange resin separates aromatic or aliphatic monoacids from di/tri acids containing an aromatic moiety, wherein the aromatic carboxylic acids comprise para-toluic acid, trimellitic acid, terephthalic acid, orthophthalic acid, and benzoic acid, or a combination comprising at least one of the foregoing. producing purified terephthalic acid comprising purified terephthalic acid feedstock and wastewater comprising impurities; separating the purified terephthalic acid feedstock from the wastewater comprising impurities; transferring the wastewater to a tank; adjusting the pH of the wastewater with a basic solution; adjusting the temperature of the wastewater; passing the wastewater to a column; contacting the wastewater with an ion exchange resin to remove the impurities, wherein the impurities removed from the wastewater comprise para-toluic acid, trimellitic acid, terephthalic acid, orthophthalic acid, benzoic acid, acetic acid, 4-carboxybenzaldehyde, or a combination comprising at least one of the foregoing; and recovering the water depleted of impurities, wherein the pH of the wastewater is adjusted to 4 to 10 with the basic solution, preferably wherein the pH of the wastewater is adjusted to 5 to 9, and wherein at least one of the ion exchange resin separates aromatic carboxylic acids from aliphatic carboxylic acids; or the ion exchange resin separates aromatic or aliphatic monoacids from di/tri acids containing an aromatic moiety, wherein the aromatic carboxylic acids comprise para-toluic acid, trimellitic acid, terephthalic acid, orthophthalic acid, and benzoic acid, or a combination comprising at least one of the foregoing. the ion exchange resin separates aromatic carboxylic acids from aliphatic carboxylic acids; or the ion exchange resin separates aromatic or aliphatic monoacids from di/tri acids containing an aromatic moiety, wherein the aromatic carboxylic acids comprise para-toluic acid, trimellitic acid, terephthalic acid, orthophthalic acid, and benzoic acid, or a combination comprising at least one of the foregoing.