跳至主要内容

A Micro Study to Determine Porosity, Hydraulic Conductivity, Permeability and the Discharge Rate of Groundwater in Ondo State Riverbeds, Southwestern Nigeria

Read full paper at:
http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50422#.VD4fqVfHRK0

Laboratory study of three riverbed soil samples denoted as A, B and C have been carried out by determining the soils Porosity, Hydraulic conductivity, Permeability and also investigating if there are points of convergence between the discharge rate and angle of tilt for the above mentioned samples. The experimental results for Porosity were approximately within 34% - 37%, Hydraulic conductivity was within 3.02 × 10-5 - 9.70 × 10-5 (m/s) and Permeability was within 2.74 × 10-12 - 8.80 × 10-12 (m2). Pressure generally increases as distance of flow increases for θ = 5° - 25° but there was decrease in pressure as distance of flow increases for all three samples when θ = 0°. The points of convergence for the discharge rate ranged from 0.001 × 10-10 - 4.54 × 10-10 (m3/s), while the angle of tilt convergence points ranged from 0.1° to 3.6°. There was increase in discharge rate as angle of tilt increases for all three samples.
Cite this paper
Omojola, A. , Akinpelu, S. , Adesegun, A. and Akinyemi, O. (2014) A Micro Study to Determine Porosity, Hydraulic Conductivity, Permeability and the Discharge Rate of Groundwater in Ondo State Riverbeds, Southwestern Nigeria. International Journal of Geosciences, 5, 1254-1262. doi: 10.4236/ijg.2014.511104. 
 

[1] Mirus, B.B., Perkins, K.S., Nimmo, J.R. and Singha, K. (2009) Hydrologic Characterization of Desert Soils with Varying Degrees of Pedogenesis 2, Inverse Modeling for Effective Properties. Vadose Zone Journal, 8, 496-509.
http://dx.doi.org/10.2136/vzj2008.0051
[2] Zhu, J. and Sun, D. (2009) Effective Soil Hydraulic Parameters for Transient Flows in Heterogeneous Soils. Vadose Zone Journal, 8, 301-309.
http://dx.doi.org/10.2136/vzj2008.0004
[3] American Geological Institute (1972) Glossary of Geology.
[4] Morin, R.H. (2006) Negative Correlation between Porosity and Hydraulic Conductivity Insand-and-Aquifers at Cape Cod, Massachusetts, USA. Journal of Hydrology, 136, 52.
[5] Frick, T.C. and Taylor, R.W. (1978) Petroleum Production Handbook. McGraw-Hill Book Co, Boston, 23.
[6] Ghildyal, B.P. and Tripathi, R.P. (1987) Soil Physics. Wiley Eastern, New Delhi, 286.
[7] Blake, G.R. and Hartge, K.H. (1986) Methods of Soil Analysis. Part 1. Physical and Mineralogical Methods. In: Klute, A., Ed., Soil Science Society of America, 2nd Edition, Madison, 363-375.
[8] Stephens, D.B., Hsu, K.C., Prieksat, M.A., Ankeny, M.D., Blandford, M., Roth, T.L., Kelsey, J.A. and Whitworth, J.R. (1998) A Comparison of Estimated and Calculated Effective Porosity. Journal of Hydrology, 6, 156-165.
[9] Fetter, C.W. (1993) Contaminant Hydrogeology. Macmillan Publishing Company, New York.
[10] Domenico, P.A. and Schwartz, F.W. (1990) Physical and Chemical Hydrogeology. John Wiley and Sons, New York, 824.
[11] Freeze, R.A. and Cherry, J.A. (1979) Groundwater. Prentice-Hall, Englewood Cliffs, 604.
[12] Todd, D.K. (1980) Groundwater Hydrology. 2nd Edition, John Wiley, New York, 535.
[13] Driscoll, F.G. (1986) Groundwater and Wells. 2nd Edition, Johnson Division, St Paul, 1089.
[14] Gupta, S., Mohanty, B.P. and Kohne, J.M. (2006) Soil Hydraulic Conductivities and Their Spatial and Temporal Variations in a Vertisol. Soil Science Society of America Journal, 70, 1872-1881.
[15] West, T.R. (1995) Geology Applied to Engineering. 1st Edition, Prentice-Hall, Upper Saddle River, 560.
[16] Akinyemi, O.D., Akinpelu, S.J. and Adesegun, A.M. (2012) Permeability of Abeokuta Riverbed Sediments. Special Topics. Reviews in Porous Media: An International Journal, 3, 289-296.                          eww141015lx
标签：

评论

发表评论

此博客中的热门博文

Does Immigration Promote the Investment of the Monopolistic Firm?

In the present paper, we examine the effect of increasing uncertainty of immigrants’ growth on the optimal timing of investment of a firm that has a monopolistic power over the labor market. It is revealed that when the uncertainty of immigrants’ growth is more than a threshold level, increasing uncertainty of immigrants’ growth accelerates the optimal timing of firms’ investment and enhances the economic growth, even if the uncertainty of immigrants’ growth is formulated by the geometric Brownian motion, which is in sharp contrast to the standard result that an increase in the uncertainty postpones the optimal timing. With an increase in the immigrants over the past ten years, workforces in the host countries have been growing significantly to the extent that the immigrants represent 70% of the increase in the workforce in Europe, and 47% in the United States as OECD indicates. In the present paper, we attempted to investigate the effect of increased uncertainty caused by the growi...
发表评论
阅读全文

Education Policy Implementation: A Mechanism for Enhancing Primary Education Development in Zanzibar

Education is one of the fundamental rights of individuals; therefore, the government of a country needs to develop and strengthen educational policy and quality as well as to ensure that everyone has equal access to basic education. The improvement of access and quality of education in the world is becoming as an essential factor in development, whereas the basic education (primary school), is acknowledged as a foundation of the higher educational development for every country. To fulfill this goal, governments introduce several policies and procedures; however, it requires some reforms and participation from the politician, policymakers, and other stakeholders to re-examine educational policy so that it can lead to multiplication and betterment of the reforms. Educational reforms actually focus on accountability. A positive educational development and reform is very challenging and needs more effort and strategy on how to use and utilize the resources effectively as such it can achie...
发表评论
阅读全文