Investigation of Groundwater Contamination from Akanran Open Waste Dumpsite, Ibadan, South-Western Nigeria, using Geoelectrical and Geochemical Techniques
Keywords:Contaminants, Geochemical, Leachate, Resistivity, Solid waste dumpsite
In recent times, large waste is produced especially in an urban area due to population with careless handling which calls for worries. Hence, the study determines the effect of Akanran dumpsite on the groundwater quality for drinking and domestic purposes. It employs the geophysical and geochemical methods. Wenner configuration was adopted with constant electrode separation ranging from 5 to 25 m to acquire five profiles within and outside the dumpsite and processed using DIPROWIN 4.01 software. Soil and water samples were collected and analysed. The 2-D pseudosection revealed a very low resistivity value which is less than 10 ohm-meter and is suspected to be leachate infiltration which migrates to a depth of 7 m. The results of soil analysis show that clay ranges between 9.61 - 18.8 %., silt between 9.27 – 19.7 % and an average bulk density of 1.48 (relatively high for a sandy loam) which suggests that infiltration of the leachate is minimal. The pH of the water sample analysis obtained is 6.9, suggesting acidic concentrates in the groundwater of the study area. However, this pH value for drinking water is within the permissible level of 6.5 – 8.5 indicating that the groundwater in the study area is suitable for drinking and also for other purposes. A Nitrate level of 2.56 mg/l in the water sample falls within 50.0 mg/l, and nitrite level of 0.09 mg/l which is moderate when compared to the permissible level limit of 0.20 mg/l. The concentration of heavy metals in hand-dug well sample from Akanran dumpsite are Zn (1.81 mg/l), Cu (0.38 mg/l), Cr (0.003 mg/l) which are within the permissible level limit and Pb (0.21 mg/l) which recorded high metal concentration which may suggest that the dumpsite contain waste metals which may leach down the soil. In conclusion, the groundwater in the area of the survey is safe and there is possible contamination with time.
G. J. Farquhar, “Leachate: Production and Characterization” Canadian
Journal of Civil Engineering, 16 (1989) 317.
W. J. Schneider, “Hydrological Implications of Solid Waste Disposal” U.S. Geological Survey, (1970) 12.
M. A. Oladunjoye, A. I. Olayinka & S. A. Amidu, “Geoelectrical Imaging at an Abandoned Waste Dumpsite in Ibadan, South-western Nigeria” Journal of Applied Sciences, 11 (2011) 755.
E. Martinho & F. Almeida, “3D behavior of contamination in landfill site using 2D resistivity/IP Imaging. Case studies in Portugal” Env. Geol. 49 (2006) 1070.
J. M. Reynolds, “An introduction to applied and Environmental geophysics” John Wiley & Sons Ltd (1997).
R. A. Foster, “Getting to grips with groundwater pollution protection in developing countries” National Resour. Forum 10 (1986) 51.
B. Jimenez, “Coming to term with nature: Water reuse new paradigm towards integrated water resources management Encyclopedia of Biological, Physiological and Health Sciences”, Water and Health, Vol.II: Life Support System, (2009) 398.
H. Yadav, P. Kumar & V. P. Singh, “Hazards from the Municipal Solid Waste Dumpsites” A Review. Proceedings of the 1st International Conference on Sustainable Waste Management through Design (2018) 336.
J. R. Yoon, K. Lee, B. D. Kwon & W. S. Han, “Geoelectrical Surveys of the Nanjido Waste landfill in Seoul, Korea” Env. Geology, 43 (2003) 654.
I. B. Osazuwa & N. K. Abdullahi, “2D Electrical Resistivity and Induced Polarization investigation at an open solid waste dumpsite: A case study from Kaduna, North Central Nigeria” Journal of Environmental Hydrology 16 (2008) 1.
NGSA, “Nigeria Geological Survey Agency” Nigeria (2010).
S. A. Ganiyu, B. S. Badmus, O. A. Idowu, M. A. Oladunjoye & O. T. Olurin, “2D Electrical Resistivity Imaging Investigation of Open Dump Site in Basement Complex Formation” The African Review of Physics 10 (2015) 0033.
O. A. Okunlola, O. C. Adeigbe & O. O. Oluwatoke, “Compositional and petrogenetic features of Schitose rocks of the Ibadan area, South-western Nigeria” Earth Sciences Research Journals 13 (2009) 29.
J. O. Coker, “Vertical electrical sounding (VES) methods to delineate potential groundwater aquifers in the Akobo area, Ibadan, South-western, Nigeria” Journal of Geology and Mining Research 4 (2012) 35.
B. S. Badmus, V. C. Ozebo, O. A. Idowu, S. A. Ganiyu & O. T. Olurin, “Physico-Chemical Properties of Soil Samples and Dumpsite Environmental Impact on Groundwater Quality in South Western Nigeria” African Review of Physics 9 (2014) 103.
A. O. Ohwoghere, F. I. Chiyem & H. O. Nwankwoala, “2D Resistivity Electrical Imaging of Unsaturated and Saturated Zones for Crude Oil Spillage at Agbarha in Ughelli Area of Delta State Nigeria” Technical Report (2014).
R. B. Grossman & T. G. Reinsch, “Bulk density and Linear extensibility” Soil Science Society of America (2002) 201.
D. W. Urish, “The practical application of surface electrical resistivity to the detection of groundwater pollution” J. Ground Water 21 (1983) 144.
T. A. Ewemoje, O. E. Ewemoje & S. P. Majolagbe, “Urbanisation Effects on Surface and Groundwater Resources: An Assessment of Approved Dumpsite in Ibadan, Nigeria”. An ASABE Meeting Presentation (2017) DOI: 10.13031/aim.201701388.
Standard Organisation of Nigeria (SON), Nigerian Standard for Drinking Water Quality. NIS 554 (2007) 30.
S. Davis & R. De Wiest, “Hydrogeology” John Wiley & Sons, New York (1996).
USDA Diagnosis and Improvement of Saline and alkali soil U.S. Salinity Laboratory Staff, Government Printing Office, Washington, D.C. (2000).
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