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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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        Abstract - Issue Jul 2014, 35 (4)                                                                                                             Back



nstantaneous and historical temperature effects on a-pinene

Hydrogeochemical quality and suitability studies of groundwater

in northern Bangladesh

 

M.J. Islam1, M.A. Hakim1,2*, M.M. Hanafi2, Abdul Shukor Juraimi3, Sharmin Aktar1, Aysha Siddiqa1,

A.K.M. Shajedur Rahman1, M. Atikul Islam1 and M. A. Halim4 

1Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinajpur-5200, Bangladesh

2Department of Land Management, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia

3Department of Crop Science, Universiti Putra Malaysia 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia

4Department of Soil Science, Soil Resources Development Institute, Ministry of Agriculture, Government of the People's Republic of Bangladesh

*Corresponding Author E-mail: ahakimupm@gmail.com

 

 

 

 

Publication Data

Paper received:

29 April 2013

 

Revised received:

20 November 2013

 

Re-revised received:

24 December 2013

 

Accepted:

31 December 2013

 

 

Abstract

 

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+, CO32-, HCO3-, SO42- and Cl- 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 l-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 NO3- and Cl- 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. 

 

Key words

 

Aquifer, Hydro geochemistry, Ion-exchange, Water suitability, Weathering

 

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