Author(s): H. M. A. M. Omer
The purpose of this paper is to evaluate the quality and chemical features of
groundwater in the Dongola basin, Northern State, Sudan.
The majority of water
samples were moderately hard water, and temporarily hard – carbonate and
The dominant anion is carbonate and bicarbonate (CO3
-); and the dominant cation is sodium on the west side of the river (water
type – Trona rocks).
The majority of water samples taken at the west river bank
were (sodium-calcium-magnesium)-(bicarbonate-sulphate) type, while at the east
river bank, the majority was (sodium-calcium-magnesium)-(bicarbonate) type.
(Sulphate-chloride) type was found for samples taken at the two banks of the
river while (sulphate) and (chloride) types were found only in samples taken at
the west bank.
Sudan, Northern State, Dongula, Dongula basin, River Nile,
groundwater water types.
The hydrological structure of the Dongola Basin is considered to be one of the
most important groundwater basins in Sudan in terms of groundwater
availability, water quality and degree of utilization.
The basin is considered as
the northern extension of the Blue Nile–Khartoum rift basin.
occurs in the sandstone layers of the Wadi El Melek formation and, to a lesser
extent, in the Wadi Howar formation and the sandy lenses of the river deposits.
Depth to groundwater is controlled by topography, basement configuration,
proximity to the River Nile, as well as the existing pumping regime .
groundwater reflects the mineralogical composition of the rocks in the aquifer
and also can be used to localize recharge areas and to determine the origin of
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Paper DOI: 10.2495/WP120061
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