Preliminary Study on Assessment of Mineralization Degree and Nutrient Content of Groundwater Bodies in Gorj County

Abstract

The research study performed aims to assess the degree of mineralization and nutrient contents of groundwater bodies in Gorj County in the period 2014-2015 based on the monitoring indicators such as: pH value, electrical conductivity, chlorides content, sulphates, nitrates, nitrites, phosphates, ammonium, sodium and potassium ions. Samples of waters were taken from eight wells located in depth groundwater bodies, code ROJi05 and ROJi08 in order to determine the mineral and nutrient contents. All the indicators monitored were taken into account for assessing the mineralization degree of groundwater. The values of monitored indicators of groundwater were within the allowed limits for drinking water according to Law 458/2002 amended by Law no. 311/2004 regarding the drinking water quality with the exception of sulfur content. The values of nutrient content exceeded the allowed limits for sulphates, nitrate, nitrite and ammonium.

Nitrate Removal from Groundwater by Denitrification in Fixed and Fluidized Bed Biofilm Reactors A Comparative Study

“…From the treatment process perspective, the raw water quality is very important, depending on the pollution source, being simpler or more complicated [3][4][5]. Research conducted in Romania [6][7][8][9] showed that there are many cases of water sources in which the concentrations of inorganic nitrogen compounds (ammonium, nitrite, nitrate) exceed the imposed legislation values (0.5 mg/L, 50 mg/L, 0.1 mg/ L) in Europe and Romania [10], [11]. For medical or technological reasons, these compounds should be removed from the water until they reach maximum admissible limits.…”