Articles | Volume 374
Proc. IAHS, 374, 187–192, 2016
https://doi.org/10.5194/piahs-374-187-2016
Proc. IAHS, 374, 187–192, 2016
https://doi.org/10.5194/piahs-374-187-2016

  17 Oct 2016

17 Oct 2016

River water quality modelling under drought situations – the Turia River case

Javier Paredes-Arquiola, Javier Macián, María Pedro-Monzonís, Edgar Belda, Andrea Momblanch, and Joaquín Andreu Javier Paredes-Arquiola et al.
  • Instituto Universitario de Ingeniería del Agua y Medio Ambiente. Universitat Politècnica de València, Valencia, Spain

Abstract. Drought and water shortage effects are normally exacerbated due to collateral impacts on water quality, since low streamflow affects water quality in rivers and water uses depend on it. One of the most common problems during drought conditions is maintaining a good water quality while securing the water supply to demands. This research analyses the case of the Turia River Water Resource System located in Eastern Spain. Its main water demand comes as urban demand from Valencia City, which intake is located in the final stretch of the river, where streamflow may become very low during droughts. As a result, during drought conditions concentrations of pathogens and other contaminants increase, compromising the water supply to Valencia City. In order to define possible solutions for the above-mentioned problem, we have developed an integrated model for simulating water management and water quality in the Turia River Basin to propose solutions for water quality problems under water scarcity. For this purpose, the Decision Support System Shell AQUATOOL has been used. The results demonstrate the importance of applying environmental flows as a measure of reducing pollutant's concentration depending on the evolution of a drought event and the state of the water resources system.

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Short summary
One of the most common problems during drought conditions is maintaining a good water quality while securing the water supply to demands. This research analyses the case of the Turia River Water Resource System located in Eastern Spain. As a result, during drought conditions concentrations of pathogens and other contaminants increase, compromising the water supply to Valencia City. In order to define possible solutions for the above-mentioned problem, we have developed an integrated model.