International Journal of
Water Resources and Environmental Engineering

  • Abbreviation: Int. J. Water Res. Environ. Eng.
  • Language: English
  • ISSN: 2141-6613
  • DOI: 10.5897/IJWREE
  • Start Year: 2009
  • Published Articles: 314

Full Length Research Paper

Risk assessment of cyanobacteria-toxins for small drinking water treatment plants with lake water intakes

Uche A. Uduma
  • Uche A. Uduma
  • School of Engineering, University of Guelph, Guelph, Ontario N1G 2W1, Canada.
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Edward A. McBean
  • Edward A. McBean
  • School of Engineering, University of Guelph, Guelph, Ontario N1G 2W1, Canada.
  • Google Scholar
Bahram Gharabaghi
  • Bahram Gharabaghi
  • School of Engineering, University of Guelph, Guelph, Ontario N1G 2W1, Canada.
  • Google Scholar


  •  Received: 04 July 2016
  •  Accepted: 08 May 2017
  •  Published: 30 June 2017

Abstract

Recent increases in the frequency and severity of toxic algae blooms in freshwater lakes has been a major concern for small communities that rely on them for drinking water supply. A hazard quotient approach to risk characterization is employed to analyze the effectiveness of five conventional treatment methods for removal of cyanotoxins. The application of the method for risk assessment and mitigation is demonstrated for five case studies, including Lake Champlain (Quebec), Coal Lake (Alberta), Butte Lake (Alberta), Kubbani Lake (Nigeria) and Bomo Lake (Nigeria).

 

Key words: Cyanotoxins, human health, hazard quotient, lake water intake, water quality.