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An Investigation of Geo-hydro-chemistry and Physiochemical Properties of Irrigation Water Quality of Faridpur District, Bangladesh

Tanjima Hoque Trisha
Department of Soil and Environmental Sciences, University of Barisal, Bangladesh

Marufa Aktar
Department of Soil, Water and Environment, University of Dhaka, Dhaka, Bangladesh.

Masud Hassan
Department of Soil, Water and Environment, University of Dhaka, Dhaka, Bangladesh.

Szkm Shamsad
Department of Soil, Water and Environment, University of Dhaka, Dhaka, Bangladesh.

Abstract/ Executive Summary:

The important Physico-chemical parameters of surface and groundwater of Faridpur District were analyzed for the criteria of irrigation water quality.18 water samples were collected in the monsoon season (June-September) from different areas of Faridpur District. The study revealed that temperature, pH, electrical conductivity (EC), total dissolved solids (TDS), sodium adsorption ratio (SAR), soluble sodium percentage (SSP), residual sodium carbonate (RSC) and Kelly’s ratio of waters were found within the permissible limits for irrigation purposes. Any initiative for surface and groundwater development for planned irrigation practices is highly encouraged (13).

Keywords: Irrigation; Hydro geochemistry; Groundwater; Water quality, Sustainable agriculture

Location: Faridpur District, Bangladesh

Start Date: 00-00-2017

End Date: 00-00-2017

Program Area: Crop-Soil-Water Management

Commodity: Groundwater

Objectives:

To evaluate the suitability of groundwater for irrigated agriculture of Faridpur District.

Methodology:

Field research was conducted to evaluate the suitability of groundwater for irrigated agriculture of Faridpur District. A total of 18 ground water samples representing extensively used STW and DTW area were collected from various sites in the cropping period of the peak dry season (January 2017). Samples were collected from 4 deep tube wells, 4 shallow tube wells, 4 rivers and 6 canals. The high-density PVC bottles were used for sampling. They were thoroughly cleaned by rinsing with 8N HNO₃ and deionized water followed by repeated washing with water sample as suggested by De. Before sampling from a well, water was pumped out sufficiently so that the sample represents the groundwater from which the well is fed. The bottles were kept airtight and labeled properly for identification. Aeration during sampling was avoided by stoppering the bottle quickly (1, 2, 14). Natural waters are never pure; they always contain varying amounts of dissolved gases and solids. The major ionic species in most natural waters were analyzed in irrigation schemes and compared with water quality standards for irrigation set by FAO, US-EPA and many other scholars worldwide. In data analysis, the following points were considered: The water quality variability within the space from upstream to downstream); the physical parameters data directed measured in the field such as ToC, pH, EC_w and TDS and the variation of ions among other anions and cations within the irrigation scheme. Some parameters were tested such as Temperature (ToC), Electrical Conductivity (EC_w,), Total Dissolved Solid (TDS), Hydrogen ion concentration (pH), Sodium (Na+), Potassium (K+), Chloride (Cl-), Bicarbonate (HCO_3-)(13). The pH, Temperature, ECw and TDS were determined directly on-site electrometrically using digital pH and digital conductivity meter (Model Hanna Conductivity meter). Bicarbonate (HCO_3-), were determined by the acidimetric titration method while chloride (Cl-) was determined by argent metric titration method.

Source of Information: International Journal of Agriculture, Environment and Bioresearch; Vol. 2, No. 05; 2017

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Different Physico-chemical properties of irrigation water of Faridpur District were compared with the national and international water quality standards set for irrigation. Electrical Conductivity (EC) of collected irrigation water samples fall in the class ‘Good some samples which fall in the ‘Excellent’ class of EC; SAR, in ‘Excellent’, SSP in ‘Good to Excellent’ RSC in ‘Good to Marginal’ and Fe and CI-contents within the Maximum Allowable Concentration (MAC). On the basis of SAR, RSC, and SSP values, no permeability problem was found to exist in Faridpur District. The overall water quality of the studied samples is far better quality than treated municipal Wastewater of the country [18].

Knowledge Management: Journal