| dc.description | Water is the fluid of life not only for human beings but also for any living organism. Water is
abundant on the planet as a whole, but fresh potable water is not always available at the right
place in the right quantity for human or ecosystem use. The main sources of water in
Bangladesh are surface waters in rivers, reservoirs, lakes, canals and ponds, and the ground
water in deep and shallow aquifer (Ahmed and Rahman, 2003). Approximately 97% of the
earth’s useable fresh water is stored as groundwater (Delleur, 1999). Groundwater is the
major source of drinking and other domestic water uses in many countries including
Bangladesh. It is the most reliable source of drinking water supply in the community. It has
long been utilized as a readily accessible and stable source of water supply for domestic,
industrial and agricultural use throughout the world (Keishiro, 2006). | en_US |
| dc.description.abstract | A research was conducted for studying the suitability of groundwater for drinking, irrigation
and industrial uses. For this, a study was conducted to examine the ionic concentrations of
some groundwater samples of Debiganj upazila, Panchagarh district of Bangladesh. Fifty
water samples were collected from 29 hand tubewells, 18 shallow tubewells and 3 deep
tubewells and analysed for p", EC, cations (Ca’*, Mg”*, Na‘, K*, Zn’*, Cu’*, Mn?" and Fe*"),
anions (HCO3;, NO3, SO,”, PO,* and CI), TDS, SAR, SSP, RSC, Hr, permeability index,
permeability salinity, Gibb’s ratio and Kelly’s ratio. The p" value (5.1 - 5.8) indicated that the
waters were acidic in nature. According to TDS values, all samples were classed as
‘freshwater’. SAR and SSP of all the samples were under ‘excellent’ classes. Maximum
samples were within ‘soft’ class regarding hardness with ‘suitable’ RSC. According to SAR
and EC values, the water samples were classified as C2S1 and C1S1. Based on the contents
Ca**, Mg”*, Na’, Zn’*, Fe**, Mn", SO,”, PO,* and CI’, all waters were within the ‘safe’ limit
for drinking but some waters were unsuitable for industries. The relationship of p" vs EC, p"
vs TDS and p" vs SAR indicated significant positive correlation while p" vs SSP, p" vs RSC
and EC vs SAR combination revealed negative significant correlation. Among the major
ionic constituents, the remarkable correlations existed between Ca vs Mg, Ca vs SO4, Mg vs
Na. The concentrations of various dissolved ions varied widely in different sampling sites.
These variations might reflect the difference in natural and anthropogenic activities related to
the groundwater quality. | en_US |
