New: Final Report for project 1078

January 19, 2018

Project 1078 - Assessment and management of aesthetic and health risks associated with cyanobacteria - is now available to Members and project partners

Despite the large amount of research conducted on this topic, gaps still exist in the knowledge base that inhibit the confident application of individual treatment strategies for the mitigation of aesthetic and health risks associated with cyanobacteria and their metabolites at the full scale.

The business questions that reflect the current knowledge gaps and risks addressed during this project were:

  • How can we have confidence in the application of various treatment processes when they are often site/system specific?
  • What is the evidence the removals of cyanobacteria and metabolites reported in the literature and guidance manuals are achievable at the full scale?
  • How can we assess and validate the efficiencies of unit processes at individual treatment plants?
  • What is the combined mitigation effect of the entire treatment train?
  •  In the case of a toxic bloom, how can we determine the point at which we are at risk of distributing water that does not meet the Australian Drinking Water Guidelines (ADWG) for toxin concentrations?

In adhering to the ADWG Framework for Management of Water Quality, water utilities are expected to abide by 12 key elements and the five components that relate specifically to this project are:

1.      Ensure employee awareness, involvement and training

2.      Identify hazards and undertake risk assessments,

3.      Preventive measures and multiple barriers, identification of effective barriers and residual risk

4.      Undertake operational monitoring, investigative studies and research monitoring,

5.      Validate  processes

The aim of this project was to provide Australian water utilities with a suite of user-friendly and straightforward resources to support the implementation of the elements of the framework outlined above, specifically for the assessment and management of the aesthetic and toxicity risks associated with cyanobacteria. The project team delivered on this aim in four stages, with each stage producing a valuable document or tool to inform capital and operational decision-making and aid in the application of the framework.

Members can access all of the project reports and materials from the project page. Remeember to log in first!

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