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.

DETERMINATION OF PHYSICO-CHEMICAL PARAMETERS AND WATER QUALITY INDEX (WQI) OF OLT RIVER Print

DETERMINATION OF PHYSICO-CHEMICAL PARAMETERS AND WATER QUALITY INDEX (WQI) OF OLT RIVER

Claudia Sandru*, Elena David

National Research and Development Institute for Cryogenics and Isotopic Technologies - ICSI Rm. Valcea, Uzinei Street no. 4, P.O. Box Râureni 7, 240050, Râmnicu Vâlcea, Romania

ABSTRACT

The present work aims at assessing the water quality index (WQI) in the surface water of Olt River by monitoring three sampling locations for a period of 12 months from December 2014 to November 2015.The surface water samples were subjected to comprehensive physico-chemical analysis involving major cations (Ca2+, Mg2+), anions ( Cl-, SO42-, NO3-, PO43-) and general parameters (pH, electrical conductivity, total dissolve solids, total hardness, turbidity). Results demonstrated that WQI values ​​for the sectors of water analyzed, water is classified as excellent values ​​between 12.97 to 21.23  in spring, winter, autumn seasons and  good water class in summer season with WQI value of 29.42. The seasonal values of WQI indicates that surface water is affected more during the summer season than in spring, autumn and winter. This method appears to be more systematic and provide comparative evaluation of the water quality in different seasons of the year. Therefore, it may be helpful as marker for the public to better understand the quality of water as well as tool for the water quality management.

Keywords: Water quality index, Physico-chemical, River water.

 

 

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*Corresponding author: Claudia Sandru, E-mail: claudia.sandru@icsi.ro, phone: 0250 732744,   fax: 0250 732746