Progress of Cryogenics and Isotopes Separation

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The National Conference with international participation on New Cryogenic and Isotope Technologies for Energy and Environment - EnergEn 2018 is organized by the National Research-Development Institute for Cryogenic and Isotopic Technologies - ICSI Rm. Valcea with the scientific participation of the University of Pitesti and the University of Craiova and will be held at Baile Govora, in 2018.
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THE STABLE ISOTOPES IN THE HYDROLOGY STUDIES AT RAURENI-VALCEA AREA

D. Costinel1 , V. V. Grecu2, S. Cuna3, R. Vremera1 and I. Faurescu1

1National R&D Institute for Cryogenics and Isotopic Technologies – ICIT Rm. Valcea, Research & Development Department, Uzinei Street, nr. 4, OP Raureni CP 7, Rm. Valcea ROMANIA, 240050, e-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it ; 2University Bucharest - Faculty of Physics, Department of Atomic and Nuclear Physics, Bucharest-ROMANIA
3National Institute for Research and Development of Isotopic and Molecular Technologies Cluj Napoca, str. Donath 71-103, cod 400293, CP 700, Cluj Napoca-ROMANIA


ABSTRACT
 
The hydrology and the climate studies are now and will continue to be joined by human activities. Observing differences of the stable isotopic concentration ratios informs us about certain geochemical or hydrological processes that took place. The isotopic composition of oxygen and hydrogen in rainwater varies with latitude, altitude, climate and time of the year. This methodology is an important tool in studying groundwater movement or freshwater origin.
 This study demonstrated the utility of the Continuous Flow – Isotope Ratio Mass Spectrometry method for measuring natural variation of the occurring isotopes of hydrogen (2H) and oxygen (18O) in meteoric waters. We continue until now (September 2009) the last work were we measured the variation of δ18O and δ2D values from precipitation fallen in Raureni-Valcea area between May-December 2007 and September 2008-March, together with the δ18O and  δ2D values from the Bistrita river (Costinel D. et al, 2009). For this area was reported the local Meteoric Water Line and the variation of δ18O and δ2D values was correlated with the temperature and humidity in the same period.