Title:Treatment Approaches for Managing Dissolved and Intracellular Cyanotoxins
The increase of cyanobacteria blooms and associated metabolite release (taste and odor-causing compounds and cyanotoxins) are causing numerous problems for water treatment plants in terms of maintaining treatment performance, managing disinfection by-products (DBPs), and dealing with the potential presence of the cyanotoxins themselves. The EPA issued health advisories in June 2015 for two cyanotoxins (microcystins and cylindrospermopsin) and utilities have been struggling with how to manage bloom events and optimize treatment to remove cyanotoxins.

This webcast will highlight the effectiveness of conventional and advanced treatment processes for managing intracellular and extracellular cyanotoxins while minimizing unintended consequences. In addition, a summary of the Hazen-Adams CyanoTOX model v.2.0 will be presented. Case studies will be used to illustrate how the model worked at various utilities and will be used to provide a basis for evaluating treatment options. Overall, the model can also be used to evaluate different treatment scenarios during water treatment plants’ decision-making processes, allowing plant managers and operators to make informed decisions about which and how much oxidant is needed to meet their water quality goals.

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Dr. Ben Stanford, American Water
Dr. Eric Wert, PE, Southern Nevada Water Authority
Dr. Djanette Khiari, Water Research Foundation
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