Tag Archives: Hydrochemistry

Hydrogeology and Chemistry Synthesis of the Deep Boring Of the Township Of Abomey-Calavi. (Published)

In the setting of the backing of the food in drinking water of the population of the cities of Abomey-Calavi, Sèmè and Cotonou biggest city of Benin, the General Direction of water (DG-Water) and the Society Nationnale of the Waters of Benin (SONEB) achieved many boring in the township of Abomey-Calavi. It is the biggest field of intensive catchment of Benin; but whose hydrogeology and chemistry is known little.  During the year 2013, we sampled these boring and studied the hydrogeology of the township of Abomey-Calavi. These deep boring of about hundred meter on average, permit to appropriate water in the aquifer of the continental terminal. It is an aquifer of the sands (end to coarse) of wills and gravels with of the argil – sandy levels (red lateritic, gaudy, black or colorful). We mobilized water from 77 boring. The averages of the results of analyses by precinct permitted to make a synthesis of hydrogeology and hydrochemistry of the township of Abomey-Calavi. The water of boring of the township of Abomey-Calavi are possesses one feature chlorinated sodic potassic or bicarbonated sodic potassic. 

Keywords: Abomey-Calavi, Benin, Hydrochemistry, hydrogeology

Seasonal Variation in Hydro Chemistry of River Benue at Makurdi, Benue State Nigeria (Published)

The hydrochemistry of River Benue at Makurdi was studied for two years (July 2011-June 2013).  Water samples were collected monthly from five different Stations on the shoreline of River Benue at Makurdi. The hydrochemistry of the water samples were examined using standard methods. The results of the physico-chemical parameters indicate the river water samples with the following characteristics: conductivity ranged from 139±215.05µS/cm – 63.95±30.94µS/cm, pH varied from 6.33±0.59-6.95±0.86, TDS varied from 28.29±11.69mg/L- 69.14±106.65mg/L, TSS varied from 41.00±25.42mg/L- 87.56±57.39mg/L, colour ranged from 192.60±143.79TCU-393.01±175.73TCU, turbidity ranged from 44.53±44.28NTU – 91.38±56.54NTU, surface water temperature ranged from 28.09±1.970C – 28.99±1.630C, bicarbonate ranged from 121.98±59.13mg/L – 185.61±57.20mg/L, chloride ranged from 117.44±59.46mg/L – 173.07±71.27mg/L, nitrate ranged from 2.23±3.14mg/L – 3.76±5.22mg/L, sulphate ranged from 10.41±9.84mg/L- 17.24±15.21mg/L, phosphate ranged from 0.92±1.11mg/L- 1.47±2.07mg/L and copper ranged from 0.11±0.09mg/L- 0.31±0.34mg/L. The mean values were generally within the WHO and the Nigerian Standard for Drinking Water Quality accepted maximum limit except for colour and turbidity. The result of ANOVA for all the parameters was significant during the seasons (P˂0.05), except for TDS, TSS and temperature (P˃0.05). Across the Stations temperature, bicarbonate, nitrate, sulphate, phosphate and copper were not significant (ANOVA, P˃0.05). Generally the wet seasons had more values as compared to dry months .It is recommended that the discharged of effluents and other waste into the River Benue should be controlled and enforced

Keywords: Hydrochemistry, Makurdi, River Benue, Seasonal variation

Seasonal Variation in Hydro Chemistry of River Benue at Makurdi, Benue State Nigeria (Published)

The hydrochemistry of River Benue at Makurdi was studied for two years (July 2011-June 2013). Water samples were collected monthly from five different Stations on the shoreline of River Benue at Makurdi. The hydrochemistry of the water samples were examined using standard methods. The results of the physico-chemical parameters indicate the river water samples with the following characteristics: conductivity ranged from 139±215.05µS/cm – 63.95±30.94µS/cm, pH varied from 6.33±0.59-6.95±0.86, TDS varied from 28.29±11.69mg/L- 69.14±106.65mg/L, TSS varied from 41.00±25.42mg/L- 87.56±57.39mg/L, colour ranged from 192.60±143.79TCU-393.01±175.73TCU, turbidity ranged from 44.53±44.28NTU – 91.38±56.54NTU, surface water temperature ranged from 28.09±1.970C – 28.99±1.630C, bicarbonate ranged from 121.98±59.13mg/L – 185.61±57.20mg/L, chloride ranged from 117.44±59.46mg/L – 173.07±71.27mg/L, nitrate ranged from 2.23±3.14mg/L – 3.76±5.22mg/L, sulphate ranged from 10.41±9.84mg/L- 17.24±15.21mg/L, phosphate ranged from 0.92±1.11mg/L- 1.47±2.07mg/L and copper ranged from 0.11±0.09mg/L- 0.31±0.34mg/L. The mean values were generally within the WHO and the Nigerian Standard for Drinking Water Quality accepted maximum limit except for colour and turbidity. The result of ANOVA for all the parameters was significant during the seasons (P˂0.05), except for TDS, TSS and temperature (P˃0.05). Across the Stations temperature, bicarbonate, nitrate, sulphate, phosphate and copper were not significant (ANOVA, P˃0.05). Generally the wet seasons had more values as compared to dry months .It is recommended that the discharged of effluents and other waste into the River Benue should be controlled and enforced.

Keywords: Hydrochemistry, Makurdi, River Benue, Seasonal variation