analysis of uranium in ground water of balod kabirdham and rajnandgaon districts of chhattisgarh and its remediation by chemical techniques

Abstract

newline Elevated uranium levels in drinking water are a world-wide issue. Uranium pollution newlineof groundwater has been reported in India and many other countries. Measurement of newlinethe uranium contamination of groundwater may be helpful in recognizing the health newlinethreat to rural residents relying on borewells and wells for their drinking water. In this newlinestudy, the uranium concentrations and associated health risks in forty one, sixty six newlineand fifty two number of groundwater samples collected from Balod, Kabirdham and newlineRajnandgaon districts of Chhattisgarh, India, are investigated systematically. The newlinephysicochemical parameters of pH, oxidation-reduction potential (ORP), total newlinedissolved solids, conductivity, hardness, alkalinity, calcium, magnesium, sodium, newlinepotassium, chloride, sulphate, nitrate, phosphate and fluoride are also analyzed to newlineassess groundwater quality and to find the correlation if any with the measured newlineuranium concentrations. In addition to this, natural dolomite rock collected from newlineChhitapandariya, Jaijaipur, Janjgir Champa region of Chhattisgarh, India, is tested for newlineits uranium(VI) removal efficiency from aqueous phase. This study will be useful in newlinedetermining the groundwater quality with respect to uranium and in the remediation of newlineuranium contaminated water. newlineGrid sampling was folowed in this study. The standard protocol of Bhabha Atomic newlineResearch Centre (BARC) was followed for sample collection and storage. LED newlinefluorimeter LF 2A (Quantalase Enterprises Pvt. Ltd. Indore, India) was used for newlineestimation of uranium in water samples. Health risk assessment was done by standard newlinemethod given by the United States Environmental Protection Agency (USEPA). The newlinepH measurements were done on the site with an Aquasol pH meter. The ORP newlineconductivity and total dissolved solids (TDS) were measured with a multiparameter newlineinstrument. Nitrate concentrations were measured by the UV spectrophotometric newlinescreening method. The sulphate concentrations were determined by the turbidimetric newlinemethod. The phos