Physicochemical, Heavy Metals and Microbiological Assessment of Wastewater in Selected Abattoirs in Ekiti State, Nigeria

  • Temidayo Michael Ogunlade Chemistry Department, Federal University of Technology, Akure, Ondo State, Nigeria
  • Babafemi Raphael Babaniyi Bioresoures Development Center, Ogbomoso, Oyo State, Nigeria
  • Femi Johnson Afolabi Bioresoures Development Center, Ogbomoso, Oyo State, Nigeria
  • Gbenga Gabriel Babaniyi Agricultural and Rural Management Training Institute, Nigeria
Keywords: Abattoir, Wastewater, Heavy metals, Microbial analysis

Abstract

This study was on the assessment of wastewater in three selected abattoir environments in Ekiti State, Nigeria. The selected abattoirs are Atikankan Abattoir, Ikere – Ekiti Abattoir and Iworoko Road Abattoir. Wastewater samples were collected in the three locations. The physicochemical, heavy metal analysis, and microbial analysis of the samples were carried out using standard methods. The six heavy metals analyzed were (Cadmium, Chromium, Nickel, Iron, Lead, and Manganese) using Atomic Absorption Spectrometer (AAS, VGP210). The result showed that the physicochemical parameters: Turbidity (96.83 – 182.26 NTU); Electrical Conductivity (948.67 – 1262.00 μScm-1); BOD (527.42 - 640.66 mg/L); COD (850.67 - 1033.33 mg/L); Phosphate (14.70 - 18.20mg/L) and Nitrate (50.73 - 77.85 mg/L) samples collected were above the WHO maximum permissible limits. Heavy metal analysis of the samples revealed that the concentrations of (Cd, Fe, and Pd) were higher than the FAO/WHO permissible limits while those of Cr, Ni, and Mn were within the safe limits. The microbial analysis revealed a high population of bacteria and fungi from all the samples collected from the three locations. In general, if the wastewater from these abattoirs is not treated before being discharged into water bodies, it could pose a great health risk to the environment.

 

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Published
2021-10-21
How to Cite
Michael Ogunlade, T., Babaniyi, B., Johnson Afolabi, F., & Gabriel Babaniyi, G. (2021). Physicochemical, Heavy Metals and Microbiological Assessment of Wastewater in Selected Abattoirs in Ekiti State, Nigeria. Journal of Environmental Treatment Techniques, 9(4), 788-795. https://doi.org/10.47277/JETT/9(4)795
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Regular publication process