01Mar 2019

IMPACT OF A WASTE DISPOSAL SITE ON GROUNDWATER QUALITY (A CASE STUDY OF OKEODO REFUSE DUMPSITE, IWO OSUN STATE SOUTHWESTERN, NIGERIA).

  • Department of Applied Geophysics, Federal University of Technology, Akure?Nigeria.
  • Department of Chemistry and Industrial Chemistry, Bowen University, Iwo?Nigeria.
  • Department of Physical Sciences, Ondo State University of Science and Technology Okitipupa ? Nigeria.
  • Department of Remote Sensing and GIS, Federal University of Technology, Akure?Nigeria.
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Groundwater contamination occurs when urban waste materials, mainly domestic garbage, are disposed of without the appropriate measures imposing a high risk to the underground water resources. Groundwater pollution happens mostly due to percolation of pluvial water and the infiltration of contaminants through the soil. Due to the dangerous effect of the pollution on underground water, this work was carried out. A study of the impact of waste disposal on the groundwater resources around a refuse dumpsite at Oke-odo, Iwo, Osun state, Nigeria was carried out using Very Low Frequency Electromagnetic method (VLF-EM) and Vertical Electrical Sounding (VES) of the Schlumberger array.The VLF-EM survey comprised seven profiles with four which run from East to West with 10m inter-station spacing and another three from south to the north to cover the entire study area. A total of two resistivity soundings were also established; one each at the extreme western and eastern region of the waste disposal site. Hydrochemical analyses were conducted at the peak of the raining season and also during the dry season on five water samples from five hand-dug wells situated at the western and the eastern ends of the study area. These hand-dug wells have depths ranging from 3 to 5m. Water samples were tested for the concentration level of NO3-, PO43-, As, Fe, Cu, Pb, SO42-, Zn, and the pH levels. The results of the VLF-EM and VES revealed the presence of contaminant plumes which are detected as conductive anomalies mainly of dissolved salts from decayed organic matters. The geoelectric section generated from the VES data revealed that the polluted region has resistivity values as low as 12.0Ωm and 40.5Ωm, and very shallow depths 3.0m and 4.0m to the anomalous source (contaminant plume). Results of the hydrochemical analyses conducted were compared with the standard guidelines of the World Health Organization (WHO) to ascertain their quality and it was shown that the quality of water in the study area falls below standard.

  1. Ademoroti CMA (1996) ?Standard methods for water and effluent analysis?. 1st edition, Foludex Press Ltd., Ibadan, pp 32-36
  2. Adewuyi, O.I. and Oladapo, A G (2011): Use of geophysical methods in landfill site: A case study of iIbadan, Southwestern Nigeria. New York Science Journal Vol.4 (10) Pp1-10
  3. Akinloye, M. K.; Fadipe, D. O.; Adabanija, M.A. (2002). A Radiometric? Mapping? of? the LadokeAkintola University? Campus, Ogbomoso Southwestern Nigeria. Science Focus 1; 55-61
  4. APHA (1998) ?Standard methods for the examination of water and waste water?, 20th Edition, American Public Health Association, Washington DC, USA,? pp 15-20
  5. Atekwana E. A., Sauck W. A., WerkemaJr DD (2000): Investigations of geoelectricalsignatures at a hydrocarbon contaminated site. J ApplGeophys 44:167-180
  6. Carpenter, P.J.; Kaufman, R.S and Price, B.(1990).Use of resistivity soundings to determine landfill structure. Groundwater Vol.28 PP569-575
  7. Diersing, Nancy (May 2009). \"Water Quality: Frequently Asked Questions\".
  8. EPA (1973). Handbook for Monitoring Industrial Wastewater. Chapter 8.
  9. Folami S.L. (1992) Interpretation of Acromagnetic Anomalies in Iwaraja Area. southwestern Nigeria. Journal of Minning and Geology vol.28 No 2 pp 391-396
  10. Franson, Mary Ann (1975). Standard Methods for the Examination of Water and Wastewater 14th ed. Washington, DC: American Public Health Association, American Water Works Association & Water Pollution Control Federation. ISBN 0-87553-078-8
  11. Ogunbode, T.O., Akintunde, E.A. and Akinola,O.T. (2016): Assessment of undergroundwater quality and pollution sources apportionment in a growing urban centreinOsun state southwestern Nigeria. European Journal of Geography, Vol.7, No.3 ,PP 70-84.
  12. RADWQ (2007), Rapid Assessment of Drinking Water Quality in the Federal Republic of Nigeria Country Report 2004-2005. WHO and UNICEF, PP79
  13. Rahaman M.A. (1976), Review of Basement Geology of southwestern Nigeria, Elizaberthan publishing company, Nigeria pp 41 ? 58.
  14. SiaSu, G.L., 2007. Impact of drinking water sources in close proximity to the Payatas dumpsite, Phillipines. J Public Health, 15: 51-55.
  15. Ugwu, S.A. and Nwosu, J . I. (2009). Effect of waste dumps on groundwater in Choba using geophysical method. Journal of Applied Sciences and Environmental Management 13(1), 85-89
  16. World Health Organization, WHO, (2011)? Guidelines for drinking water quality? 4th WHO Press, USA, p 564

[Alagbe O. A, Olutona G.O, Olafisoye E.R and Olayiwola K.O. (2019); IMPACT OF A WASTE DISPOSAL SITE ON GROUNDWATER QUALITY (A CASE STUDY OF OKEODO REFUSE DUMPSITE, IWO OSUN STATE SOUTHWESTERN, NIGERIA). Int. J. of Adv. Res. 7 (Mar). 32-43] (ISSN 2320-5407). www.journalijar.com

DR. ALAGBE, O.A.
FEDERAL UNIVERSITY OF TECHNOLOGY, AKURE, NIGERIA

DOI:

Article DOI: 10.21474/IJAR01/8595      
DOI URL: http://dx.doi.org/10.21474/IJAR01/8595

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