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Article

WWTP Effluent Quality Improvement for Agricultural Reuse Using an Autonomous Prototype

1
Department of Irrigation, Centro de Edafología y Biología Aplicada del Segura, CEBAS-CSIC, 30100 Murcia, Spain
2
SISTEMA AZUD, S.A., 30820 Murcia, Spain
3
Technology Centre for Energy and the Environment (CETENMA), 30353 Murcia, Spain
*
Author to whom correspondence should be addressed.
Water 2020, 12(8), 2240; https://doi.org/10.3390/w12082240
Received: 5 July 2020 / Revised: 2 August 2020 / Accepted: 5 August 2020 / Published: 9 August 2020
(This article belongs to the Special Issue Biofiltration and Physicochemical Filtration for Water Treatment)
Wastewater reuse presents a promising way to mitigate the risk to global water resources and achieve sustainability in water, especially in agricultural areas in the southeast of Spain, such as the Murcia region. However, the risks related to the presence of contaminants of emerging concern (CECs) or pathogenic microorganisms in wastewater treatment plant (WWTP) effluent suggest the need to implement effective and relatively low-cost tertiary treatments. With this aim, a self-sustainable pilot prototype based on three combined modules (disc-filtration, granular activated carbon (GAC) bed adsorption and UV disinfection) assisted by solar panels was installed as an alternative tertiary treatment in a conventional WWTP in the Murcia region. The obtained results clearly confirmed the efficiency of the proposed prototype for CECs removal, and showed optimal results at a workflow of 500 L/h. In all cases, high removal efficiency was obtained for the different indicator microorganisms described in the recently published Regulation (EU) 2020/741 (E. coli, F-specific coliphages, somatic coliphages, total coliphages, and Clostridium perfringens). The protection of the activated carbon by disc-filters and the energy autonomy and self-operation of the prototype resulted in an efficient and economically viable methodology for its implementation in both conventional WWTPs and in isolated areas attached to crops. View Full-Text
Keywords: granular activated carbon; adsorption; autonomous prototype; emerging contaminants; filtration; reclaimed water; safe agricultural reuse granular activated carbon; adsorption; autonomous prototype; emerging contaminants; filtration; reclaimed water; safe agricultural reuse
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MDPI and ACS Style

Ponce-Robles, L.; Masdemont-Hernández, B.; Munuera-Pérez, T.; Pagán-Muñoz, A.; Lara-Guillén, A.J.; García-García, A.J.; Pedrero-Salcedo, F.; Nortes-Tortosa, P.A.; Alarcón-Cabañero, J.J. WWTP Effluent Quality Improvement for Agricultural Reuse Using an Autonomous Prototype. Water 2020, 12, 2240. https://doi.org/10.3390/w12082240

AMA Style

Ponce-Robles L, Masdemont-Hernández B, Munuera-Pérez T, Pagán-Muñoz A, Lara-Guillén AJ, García-García AJ, Pedrero-Salcedo F, Nortes-Tortosa PA, Alarcón-Cabañero JJ. WWTP Effluent Quality Improvement for Agricultural Reuse Using an Autonomous Prototype. Water. 2020; 12(8):2240. https://doi.org/10.3390/w12082240

Chicago/Turabian Style

Ponce-Robles, Laura, Beatriz Masdemont-Hernández, Teresa Munuera-Pérez, Aránzazu Pagán-Muñoz, Andrés J. Lara-Guillén, Antonio J. García-García, Francisco Pedrero-Salcedo, Pedro A. Nortes-Tortosa, and Juan J. Alarcón-Cabañero. 2020. "WWTP Effluent Quality Improvement for Agricultural Reuse Using an Autonomous Prototype" Water 12, no. 8: 2240. https://doi.org/10.3390/w12082240

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