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مجله مهندسی شیمی
جزئیات رویداد
همایش ، رویداد ، ژورنال
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  • coupling of adsorption, coagulation, and ultrafiltration processes for the removal of emerging contaminants in a secondary effluent

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    • تاریخ ارائه: 1392/01/01
    • تاریخ انتشار در تی پی بین: 1392/01/01
    • تعداد بازدید: 632
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the removal of eleven emerging contaminants (acetaminophen, metoprolol, caffeine, antipyrine, sulfamethoxazole, flumequine, ketorolac, atrazine, isoproturon, 2-hydroxybiphenyl and diclofenac) present in a wwtp effluent by applying several combined treatments has been investigated. these combinations were constituted by pac adsorption and/or coagulation pre-treatments followed by uf, as well as by an uf treatment followed by gac adsorption post-treatment. pac pre-treatment decreased membrane fouling, with the advantage that pac was separated from the final effluent in the uf step. low pac dose in the range 10–50 mg l−1 in the adsorption pre-treatment was enough in order to remove most of the emerging contaminants and to partially improve water quality parameters. however, if the goal is to reach a high improvement of water quality parameters in the pre-treatment step, a pac dose above 500 mg l−1 was required. although coagulation pre-treatment did not increase appreciably the permeate flux in the uf step, the final quality of the permeate was improved, especially when the combination fe(iii)/uf was applied. finally, a significant positive effect of the gac post-treatment after the uf treatment was appreciated, which led to an increase in the removal of the water quality parameters and a significant elimination of emerging contaminants.

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