alexa Abstract | Physico-chemical investigation of ground water qualities of some areas of Imphal West district of Manipur during pre-monsoon–3rd phase

Journal of Chemical and Pharmaceutical Research
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Fifteen ground water samples (S-1 to S-15) were collected from different hand pumps of Imphal West district of Manipur during pre-monsoon period of 2015. They were analyzed for physico-chemical parameters such as temperature, pH, TDS (total dissolved solids), electrical conductivity (EC), total alkalinity (TA) (and hence 2- 3 CO and H - 3 CO ), total hardness (TH), Ca2+, Mg2+, Na+, K+ and Cl-. Most of the parameters for many of the ground water samples, have their values/concentrations below the acceptable and threshold limits of BIS standard for drinking water as well as that of WHO. But the total alkalinity values for S-1 to S-15, total harness values for S-7 to S-9 and S-12, concentrations of Mg2+ for S-7, S-9 and S-12, concentration of Na+ for S-3, S-14 and S-15, and concentration of Cl– for S-3 are above their corresponding acceptable limits but below the permissible limits of BIS standard for drinking water and threshold limit of WHO (in case of Na+). However, ground waters (S-1 to S-15) are fit for drinking in absence of alternate sources. But some suitable treatments are necessary so as to keep the values/concentrations of the above mentioned parameters below their corresponding acceptable limits/threshold limit of BIS standard for drinking water and that of WHO. All the ground water (S-1 to S-15) are fit for other domestic and irrigation purposes. Further correlation coefficient data reveals that high TDS values for different ground water samples are due to presence of NaHCO3, NaCl, KHCO3 and KCl mainly. Again high values of total alkalinity for different ground waters, are due to presence of NaHCO3 and KHCO3 mainly in such ground waters. Further, both Ca2+ and Mg2+ show strong positive correlations with total hardness (r=0.974 and 0.984 respectively) showing dependence of total hardness (TH) on concentrations of both Ca2+ and Mg2+.

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Author(s): Nandababu Singh Laishram


Physico-chemical parameters, drinking, irrigation, BIS, WHO and correlation co-efficient., Physico-chemical

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