The Geological Characteristics of the Vadose Zone Influence the Impact of Treated Wastewater on the Groundwater Quality (SCA.Re.S. Project 2019–2020)

Author:

De Giglio OsvaldaORCID,Triggiano Francesco,Apollonio Francesca,Pousis ChrysovalentinosORCID,Calia Carla,Diella Giusy,Bagordo FrancescoORCID,Murgolo Sapia,Grassi TizianaORCID,De Ceglie CristinaORCID,Brigida SilviaORCID,La Rosa GiuseppinaORCID,Mancini Pamela,Bonanno Ferraro GiusyORCID,De Donno AntonellaORCID,Mascolo GiuseppeORCID,Caputo Maria ClementinaORCID,Montagna Maria TeresaORCID

Abstract

This study evaluated whether some chemical and microbial contaminants in treated sewage effluents from two wastewater treatment plants (WWTP) reached the groundwater when they drained through a fractured karst vadose zone (WWTP-K) and a porous vadose zone (WWTP-P). Forty-five samples of sewage water (SW), treated water (TW), and monitoring well (MW), collected from WWTP-P (24) and WWTP-K (21), were analyzed for a range of microbiological and chemical properties. The E. coli and Salmonella counts were below the limits outlined in the Legislative Decree 152/06 in effluents from both types of WWTP. Enteric viruses were found in 37.5% and 12.5% of the SW and TW from WWTP-P, respectively. The percentages of Pepper mild mottle virus isolated were higher in TW (62.5% in WWTP-P, 85.7% in WWTP-K) than in SW and MW. The residual concentrations of contaminants of emerging concern (CEC) of each drug category were higher in the MW downstream of WWTP-K than of WWTP-P. Our results showed that the porous vadose zone was more effective at reducing the contaminant loads than the fractured karst one, especially the CEC, in the effluent. The legislation should include other parameters to minimize the risks from treated effluent that is discharged to soil.

Funder

Regione Puglia

Apulia Regional Government Bari, Italy

Publisher

MDPI AG

Subject

Infectious Diseases,Microbiology (medical),General Immunology and Microbiology,Molecular Biology,Immunology and Allergy

Reference65 articles.

1. Groundwater Resources of the World and Their Use;Zektser,2004

2. Widespread microbiological groundwater contamination in the South-eastern Salento (Puglia-Italy)

3. An integrated modelling tool to evaluate the acceptability of irrigation constraint measures for groundwater protection

4. Factors influencing groundwater quality: Towards an integrated management approach;De Giglio;Ann. Ig.,2015

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