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Hydrogeochemical quality and suitability studies of groundwater in northern Bangladesh


Islam, Md. Jahidul and Hakim, Md. Abdul and Musa, Mohamed Hanafi and Juraimi, Abdul Shukor and Aktar, Sharmin and Siddiqa, Aysha and Rahman, A. K. M. Shajedur and Islam, M. Atikul and Halim, M. A. (2014) Hydrogeochemical quality and suitability studies of groundwater in northern Bangladesh. Journal of Environmental Biology, 35 (4). pp. 765-779. ISSN 0254-8704; ESSN: 2394-0379


Agriculture, rapid urbanization and geochemical processes have direct or indirect effects on the chemical composition of groundwater and aquifer geochemistry. Hydro-chemical investigations, which are significant for assessment of water quality, were carried out to study the sources of dissolved ions in groundwater of Dinajpur district, northern Bangladesh. The groundwater samplish were analyzed for physico-chemical properties like pH, electrical conductance, hardness, alkalinity, total dissolved solids and Ca2+, Mg2+, Na+, K+, C032', HC03", SO,2 and CI" ions, respectively. Based on the analyses, certain parameters like sodium adsorption ratio, soluble sodium percentage, potential salinity, residual sodium carbonate, Kelly's ratio, permeability index and Gibbs ratio were also calculated. The results showed that the groundwater of study area was fresh, slightly acidic (pH 5.3-6.4) and low in TDS (35-275 mg I"1). Ground water of the study area was found suitable for irrigation, drinking and domestic purposes, since most of the parameters analyzed were within the WHO recommended values for drinking water. High concentration of N03" and CI' was reported in areas with extensive agriculture and rapid urbanization. Ion-exchange, weathering, oxidation and dissolution of minerals were major geochemical processes governing the groundwater evolution in study area. Gibb's diagram showed that all the samples fell in the rock dominance field. Based on evaluation, it is clear that groundwater quality of the study area was suitable for both domestic and irrigation purposes.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
Publisher: Triveni Enterprises
Keywords: Aquifer; Hydro geochemistry; Ion-exchange; Water suitability; Weathering
Depositing User: Nabilah Mustapa
Date Deposited: 01 Feb 2016 02:34
Last Modified: 22 Jun 2017 01:49
URI: http://psasir.upm.edu.my/id/eprint/37904
Statistic Details: View Download Statistic

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