Assessment of Physico-Chemical Properities of Surface Water, of Oji Town And its Adjoining Areas, Anambra Basin, Se. Nigeria for Irrigation Purpose
Journal Title: Galore International Journal of Applied Sciences and Humanities - Year 2017, Vol 1, Issue 1
Abstract
The study tends to assess the quality of surface water for irrigation purpose. The following parameters were test for: PH, Turbidity, Electrical Conductivity, and temperature, Total Dissolved Solid (TDS), Mg2+, SO42-, Cl-, K+, Na2+, HCO3-, Ca2+ and NO3-. PH ranges from (6.0 to 6.9), Turbidity ranges from (0.5 to 2.9 NTU), EC ranges from (34.7 to 60.8µS/cm), temperature ranges from (23 to 290C), TDS ranges from (22.4 to 31.6 mg L-1), magnesium ranges from (1.2 to 3.5 mg L-1/0.09 - 0.21meq/L), sulphate ranges from (2.1 to 12.2 mg L-1/ 0.04 to 0.25 meq/L), chloride ranges from (1.4 to 17.6 mg L-1/ 0.03 to 0.49 meq/L) potassium ranges from (0.9 to 2.6 mg L-1/0.02 to 0.06 meq/L), sodium ranges from (0.3 to 4.3 mg L-1/ 0.01 to 0.18 meq/L), bicarbonate ranges from (30.8 to 66.7 mg L-1/ 0.5 to 1.09 meq/L), calcium ranges from (4.2 to 12.6 mg L-1/ 0.34 to 0.62 meq/L) and nitrate ranges from (0.0 to 26.0 mg L-1 / 0 to 0.41 meq/L). Calculated indices such a SAR, MAR, PI, TH, RSBC, Kelly ratio SSP and CAI indicate that majority of the water are suitable for irrigation. All the sampled values of Na% are excellent for irrigation purpose except for OJI/02 and OJI/06. The water qualities satisfy the condition for use in irrigation. From the Piper an Schoeller diagrams it reveals that OJI/01 is of Ca-HCO3-NO3 water type, OJI/02 - 07 are of Ca- HCO3-Cl water type, OJI/08 is of Mg- HCO3-Cl-SO4 water type, while OJI/09 and OJI/10 are of Ca-Mg- HCO3-Cl with HCO3 as the dominat ionic specie found in all the water samples.
Authors and Affiliations
M. O. Eyankware
Keywords
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