Université de Neuchâtel

Can shallow open-loop hydrothermal well-doublets help remediate seawater intrusion?

De Keuleneer, François ; Renard, Philippe

In: Hydrogeology Journal, 2015, vol. 23, no. 4, p. 619-629

Recharge through injection wells is a well-established technique to remediate and protect coastal aquifers from saltwater intrusion. In this study, it is shown that hydrothermal doublet installations can also be used to protect coastal aquifers while producing heat or cold for air conditioning. Such a method could be extremely valuable for situations where there is both a need for freshwater and...

Université de Neuchâtel

A method for the stochastic modeling of karstic systems accounting for geophysical data : an example of application in the region of Tulum, Yucatan Peninsula (Mexico)

Vuilleumier, Cécile ; Borghi, Andrea ; Renard, Philippe ; Ottowitz, David ; Schiller, A. ; Supper, Robert ; Cornaton, Fabien

In: Hydrogeology Journal, 2013, vol. 21, no. 9, p. 523-544

The eastern coast of the Yucatan Peninsula, Mexico, contains one of the most developed karst systems in the world. This natural wonder is undergoing increasing pollution threat due to rapid economic development in the region of Tulum, together with a lack of wastewater treatment facilities. A preliminary numerical model has been developed to assess the vulnerability of the resource. Maps of...

Université de Neuchâtel

Reducing the impact of a desalination plant using stochastic modeling and optimization techniques

Alcolea, Andres ; Renard, Philippe ; Mariethoz, Gregoire ; Bertone, François

In: Journal of Hydrology, 2009, vol. 365, no. 3-4, p. 275-288

Water is critical for economic growth in coastal areas. In this context, desalination has become an increasingly important technology over the last five decades. It often has environmental side effects, especially when the input water is pumped directly from the sea via intake pipelines. However, it is generally more efficient and cheaper to desalt brackish groundwater from beach wells rather...