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UPC: C/ Jordi Girona 31, (08034 - Barcelona) - IDAEA: C/ Jordi Girona 18-26, (08034 - Barcelona)

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UNDERSTANDING THE REDOX POTENTIAL EVOLUTION IN AN INFILTRATION POND: COUPLING HEAT AND REACTIVE TRANSPORT MODEL

a cargo de
 
Paula Rodriguez Escales

Jueves 20 de Febrero a las 12:15 h
en
Departamento de Ingeniería Civil y Ambienta, Modulo D2-Aula CIHS, Planta Baja


Abstract:
Eh is a parameter englobing multiple processes andfactors related to the hydrochemistry of a water. Normally, by itself, it does not provide great information to describe all the processes occurring in a system and it is considered only as “an indicator” that combined with a more detailedhydrochemistry can provide information of the driving processes.Consequently, it has not been used as a quantitative parameter. However, as a first time, and thanks to the development of sensoring and complex reactive transport models, we have been able to reproduce it quantitatively. In this work, we have developed a reactive transport model coupled to heat transport considering the folowing reactive processes: generation of organic matter in the own system, the oxidation of organic carbonusing different TEAPs, nitrification and different secondary geochemical processes related , especially, to iron and manganese geochemistry. The model has been validated with a big data of Eh measured through continuous and non-invasive sensors installed in the first meter of an infiltration pond and measuring every 12 min during a year. Besides this, we also used the data provided by four hydrochemical sampling campaigns.
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