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PROCESS AND PLANT FOR TREATING WASTEWATER CONTAINING MICROPOLLUTANTS OF PHARMACEUTICAL ORIGIN

机译：制药原产微污染废水处理工艺及装置

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摘要

A completely biological process for eliminating a first group of micropolluants of pharmaceutical origin and a second group of micropolluants of pharmaceutical origin in wastewater and plant for the implementation of the process, the process comprising the steps of: - in a first treatment, introducing the wastewater (1), once screened, into the moving-bed membrane bioreactor (MB-MBR) (11) populated by first microbial consortium for a first retention time; - in a second treatment, introducing the wastewater (1) treated by the bioreactor (11) into the biofiltration tank (12), different from the tank of the bioreactor, comprising one or more biologically activated carbon (BAC) columns and leaving the residues of micropolluants of pharmaceutical origin to be absorbed on the active carbon; - leaving the active carbon that has previously absorbed the residues of micropolluants of pharmaceutical origin to be colonized by the second microbial consortium in the form of biofilms for a second retention time; the total hydraulic retention time, consisting of the sum of the first retention time and the second retention time, being determined in order to obtain an average purifying efficiency (R) for the micropolluants of pharmaceutical origin of the first group in the treated wastewater (2) of greater than 80%, preferably of greater than 95%, and an average purifying efficiency for the micropolluants of pharmaceutical origin of the second group of greater than 40-50%, with reference to the content (Co) thereof in the initial wastewater (1).
机译：一种完全生物学的方法，用于消除废水和工厂中第一类药物来源的微污染物和第二类药物来源的微污染物，以实施该方法，该方法包括以下步骤：-在第一处理中，引入废水（1）一旦被筛选，就进入由第一微生物联合体组成的移动床膜生物反应器（MB-MBR）（11）中，并保持第一保留时间; -在第二处理中，将由生物反应器（11）处理的废水（1）引入与生物反应器的水箱不同的生物过滤池（12），该生物滤池包括一个或多个生物活性炭（BAC）柱，并留下残留物药物来源的微污染物被活性炭吸收的情况; -使先前吸收了药物来源的微污染物残留物的活性炭以生物膜的形式被第二微生物联盟定居第二保留时间;确定总的水力停留时间，包括第一保留时间和第二保留时间的总和，以便获得处理后废水中第一类药物来源的微污染物的平均净化效率（R）（2相对于初始废水中其含量（Co））大于80％，优选大于95％，第二组药物来源的微污染物的平均净化效率大于40-50％ （1）。

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