Preliminary evaluation of wastewater effluents from two food companies in Nigeria


A. Osho*, O. O. Mabekoje and O. O. Bello

Effluent samples from two top Nigerian food and beverage industries, swords food industry and 7-Up Bottling Company, Ibadan, Oyo State, Nigeria were investigated for microbial loads, physiochemical properties and presence of heavy metals. While repeated sampling revealed two bacteria and a fungus from the effluents of 7-Up bottling company, 15 bacteria and 5 fungi were isolated from Swords foods Industry. The biochemical oxygen demand (BOD) and chemical oxygen demand (COD) were equally higher in the effluent of sword food industry than that of 7-Up bottling company. Heavy metals analyses revealed Lead (4.83 and 6.75 mgl-1 ) Copper (3.80 and 3.93 mgl-1 ), Iron (3.10 and 3.45 mgl-1 ), Cadmium (7.20 and 8.10 mgl-1 ) and magnesium (5.68 and 9.38 mgl-1 ) in sword food industry while Lead (0.12 and 0.14 mgl-1 ), copper (1.20 and 1.22 mgl-1 ), iron (1.60 and 1.63 mgl-1 ), cadmium (0.10 and 0.09 mgl-1 ) and magnesium (1.10 and 1.20 mgl-1 ) were the concentrations in 7-Up bottling company. The conclusion was that, there is a high probability of polluting the environment by sword food industry as a result of discharge of untreated wastewater into the water body or soil that may lead to death of crops or reduction in crops yield, contamination of drinking water supplies and/or accumulation and dissemination of toxic chemicals that may further endanger ecosystems and threaten public health.

Share this article

Awards Nomination

Select your language of interest to view the total content in your interested language

Indexed In
  • Index Copernicus
  • Google Scholar
  • Sherpa Romeo
  • Open J Gate
  • Directory of Open Access Journals
  • CiteFactor
  • Electronic Journals Library
  • Directory of Research Journal Indexing (DRJI)
  • OCLC- WorldCat
  • Publons
  • PubMed
  • Rootindexing
  • Chemical Abstract Services (USA)
  • Academic Resource Index