Montagna Maria Teresa, De Giglio Osvalda, Calia Carla, Pousis Chrysovalentinos, Triggiano Francesco, Murgolo Sapia, De Ceglie Cristina, Bagordo Francesco, Apollonio Francesca, Diella Giusy, Narracci Marcella, Acquaviva Maria Immacolata, Ferraro Giusy Bonanno, Mancini Pamela, Veneri Carolina, Brigida Silvia, Grassi Tiziana, De Donno Antonella, Di Iaconi Claudio, Caputo Maria Clementina, Cavallo Rosa Anna, La Rosa Giuseppina, Mascolo Giuseppe
Department of Biomedical Science and Human Oncology, University of Bari Aldo Moro, Piazza G. Cesare 11, 70124 Bari, Italy.
National Research Council (CNR), Water Research Institute (IRSA), via F. De Blasio, 5, 70132 Bari, Italy.
Pathogens. 2020 Nov 30;9(12):1010. doi: 10.3390/pathogens9121010.
This study investigated the environmental contamination of groundwater as a consequence of the discharge of treated wastewater into the soil. The investigation focused on a wastewater treatment plant located in an area fractured by karst in the Salento peninsula (Apulia, Italy). Water samples were collected at four sites (raw wastewater, treated wastewater, infiltration trench, and monitoring well), monthly from May to December 2019 (with the exception of August), and were tested for (1) panel of bacteria; (2) enteric viruses; and (3) chemical substances. A gradual reduction in the concentration of bacteria, viruses and contaminants of emerging concern was observed across the profile of soil fissured by karst. All monitored bacteria were absent from the monitoring well, except for . Pepper mild mottle virus and adenovirus were detected at all sampling sites. Personal care products and X-ray contrast media showed the greatest decrease in concentration from infiltration trench to the monitoring well, while the highest residual concentrations in the monitoring well were found for anticonvulsants (78.5%), antimicrobials (41.3%), and antipsychotic drugs (38.6%). Our results show that parameters provided by current law may not always be sufficient to evaluate the sanitary risk relating to the discharge of treated wastewater to the soil.
本研究调查了经处理的废水排放到土壤中对地下水造成的环境污染。调查聚焦于位于萨伦托半岛（意大利普利亚大区）岩溶裂隙发育地区的一座污水处理厂。于2019年5月至12月（8月除外）每月在四个地点（原废水、处理后废水、渗滤沟和监测井）采集水样，并对（1）细菌组；（2）肠道病毒；以及（3）化学物质进行检测。在岩溶裂隙发育的土壤剖面中，观察到细菌、病毒和新出现的关注污染物浓度逐渐降低。除了……外，监测井中未检测到所有监测的细菌。在所有采样点均检测到辣椒轻斑驳病毒和腺病毒。从渗滤沟到监测井，个人护理产品和X射线造影剂的浓度下降幅度最大，而监测井中残留浓度最高的是抗惊厥药（78.5%）、抗菌剂（41.3%）和抗精神病药物（38.6%）。我们的结果表明，现行法律规定的参数可能并不总是足以评估经处理的废水排放到土壤中所涉及的卫生风险。
