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Exploring expert perceptions towards emerging pollutants and their impacts in reused wastewater and agriculture

Author

Listed:
  • Jodar-Abellan, Antonio
  • Albaladejo-García, José Antonio
  • Aznar-Crespo, Pablo
  • de los Santos, Manuel Ballesta
  • Seyed Asadollah, Seyed Babak Haji
  • Derdour, Abdessamed
  • Martínez-Nicolás, Juan José
  • Melgarejo, Pablo
  • Prats, Daniel
  • Serrano-Bernardo, Francisco

Abstract

Water sustainability involves several natural and human spheres conditioning the availability and quality of water resources and life conservation. Regarding water quality, currently emerging pollutants (EPs) are a key topic at global scale since they are difficult to remove by traditional water treatment systems. In this context, this work aims to evaluate experts’ perception of several EPs issues with a special focus on semi-arid Mediterranean areas where EPs are negatively impacting water, environmental, and agricultural systems as, in these areas, effluents from water treatment plants are widely reused in the irrigation of crops, urban gardens, and golf courses or directly discharged on natural streams. Particularly, a detailed survey composed of questions about EPs regulation, risk insight, equipment, social and economic impacts, was performed collecting 437 responses. Main results suggested that EPs existence may pose a significant risk and a destabilizing factor in wastewater reuse, with negative impacts to crop irrigation, being managers the class with more concern followed by scientifics and administratives. New EPs regulations raises uncertainty amongst experts since 29 % considered positive its creation, while 20 % estimated this fact as regular and 14 % as negative. As well, although the combination of technologies to improve EPs removal generated agreement, aspects like the treatment charges at water treatment plants or the price/bill of EPs-free water were features of ambiguity. Within EPs elimination, the three expert groups highlighted that technologies impacts in the sustainability spheres will be positive on public health (87 % of responses), social trust (75 %), and environmental sustainability (76 %). Likewise, 88 % of experts concurred that the future of wastewater reuse relies on a combination of technologies. These findings offer valuable information to water legislators and policymakers to manage water resources, especially in semi-arid areas due to the final use of treated effluents and, therefore, the great implications for agriculture, environment and human health.

Suggested Citation

  • Jodar-Abellan, Antonio & Albaladejo-García, José Antonio & Aznar-Crespo, Pablo & de los Santos, Manuel Ballesta & Seyed Asadollah, Seyed Babak Haji & Derdour, Abdessamed & Martínez-Nicolás, Juan José , 2024. "Exploring expert perceptions towards emerging pollutants and their impacts in reused wastewater and agriculture," Agricultural Water Management, Elsevier, vol. 304(C).
    • Handle: RePEc:eee:agiwat:v:304:y:2024:i:c:s0378377424004347
    DOI: 10.1016/j.agwat.2024.109098
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