| dc.description.abstract | For the assessment of the suitability of groundwater for drinking and irrigation uses, a
study was conducted to examine the ionic concentrations of groundwater of the Sadar
Upazilla in the District of Dinajpur, Bangladesh. Ten Water samples were collected from
10 hand tubewells from 10 different places and analyzed for p
H
, EC, cations (Ca2+
,
Mg2+, Na+
, K+
, S+
and Zn2+
), anions (HCO3
-
, Pand Cl-
),TDS,SAR, SSP, Hardness,
permeability index, Gibb‟s ratio and Kelly‟s ratio. The p
H
value (6.30 to 6.90) indicated
that the waters were slightly acidic in nature. All water samples were under „very good‟,
„good‟ and „permissible‟ categories according to Wilcox diagram. The content of
Ca2+(15.76 to 33.39 mg /L), K
+
(0.22 to 3.10 mg/L), Na
+
(0.35 to 2.52 mg/L), Zn2+ (17.87 to
86.30 mg/L), Cl-
( 0.31 to 0.80 mg/L), revealed that all the samples considered in the
present study were suitable for drinking and irrigation purpose. SAR and SSP are use to
asses of irrigation suitability of water of all the samples were under „excellent‟ class.
Kelley‟s ratio for the tested samples were under „good‟ classes that were suitable for
irrigation purpose. PI of the tested samples were under classified as class II i.e, „good‟
that were suitable for irrigation purpose. According to TDS values, all samples were
classed as „freshwater‟. Maximum samples were within „soft‟ class regarding hardness.
According to EC values, the water samples were classified as Permissible. Gibbs
diagram indicates that all the samples fall in the precipitation dominance field. Regarding
cation and anion constituents, groundwater is suitable for irrigation and drinking
purposes except of few wells. | en_US |
