Hydrochemical assessment of suitability for drinking purpose in lalsot block, Dausa District, Rajasthan, India Tiwari K.K.* Department of Chemistry, MJRP University, Achrol, Jaipur *E-mail: kamalkanttiwari@yahoo.co.in, drkamalkanttiwari@gmail.com
Online published on 4 December, 2018. Abstract Hydrochemical analyses of groundwater samples from 14 wells was undertaken in rural areas of Lalsot Block in Dausa district, Rajasthan State for water quality evaluation and suitability for drinking purpose, using various water quality parameters and the standard methods of physicochemical analysis of water. The results show the following concentration ranges: pH (8.008.50), EC (3602320 s/cm), TDS (2581522 mg/l), TH (195350 mg/l), Ca+2(2044 mg/l), Mg+2(3367 mg/l), Na+(27425 mg/l), K+(218 mg/l), HCO3(134708 mg/l), CO−23(24288 mg/l), Cl(35319 mg/l), NO3(01203 mg/l), F(0.363.64 mg/l) and SO−24(50166 mg/l). Most of the parameters analysed are within the permissible limits as per the guideline set by both national (BIS, 2012) and international (WHO, 2011) bodies for drinking water, except for TH and F. Based on TH all the samples fall in very hard category a and majority of the samples (57%) have Fcontent that exceeds the permissible limit. The ionic dominance for major cations and anions is in the order: Na+>Mg+2> Ca+2> K+ and HCO3>Cl> CO−23>NO3>SO−24>F, respectively. The groundwater chemistry of the study area samples allows their classification as the ‘mixed type’ hydrochemical facies. This study reveals that corrosivity ratio ranges from 0.18 to 2.10 and in this context, a study has been conducted to analyse various factors that involve abnormal ratio of corrosive tendencies. Top Keywords Water Chemistry, Drinking water, Lalsot block, Rajasthan, India. Top |