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Optimizing PAC and chlorination practices for cylindrospermopsin removal
Cylindrospermopsin (CYN) is an emerging cyanobacterial toxin whose detection frequency is increasing in water bodies worldwide. Because it has a high propensity to exist in extracellular form, effective water treatment practices are required to ensure removal. In this study, powdered activated carbon (PAC) and chlorination were evaluated for CYN removal under practical water treatment plant conditions. The homogenous surface diffusion model (HSDM) was used to predict CYN adsorption using two different PACs. The HSDM also aided in the derivation of a PAC dose table that could be used to optimize PAC application for CYN removal. Chlorine was shown to be an effective oxidant for CYN; the chlorine concentration times contact time value of 3 mg × min/L was shown to be sufficient for complete CYN oxidation in two drinking waters. This study provides pertinent information for the application of PAC and chlorination practices for optimal CYN removal.
Optimizing PAC and chlorination practices for cylindrospermopsin removal
Cylindrospermopsin (CYN) is an emerging cyanobacterial toxin whose detection frequency is increasing in water bodies worldwide. Because it has a high propensity to exist in extracellular form, effective water treatment practices are required to ensure removal. In this study, powdered activated carbon (PAC) and chlorination were evaluated for CYN removal under practical water treatment plant conditions. The homogenous surface diffusion model (HSDM) was used to predict CYN adsorption using two different PACs. The HSDM also aided in the derivation of a PAC dose table that could be used to optimize PAC application for CYN removal. Chlorine was shown to be an effective oxidant for CYN; the chlorine concentration times contact time value of 3 mg × min/L was shown to be sufficient for complete CYN oxidation in two drinking waters. This study provides pertinent information for the application of PAC and chlorination practices for optimal CYN removal.
Optimizing PAC and chlorination practices for cylindrospermopsin removal
Ho, Lionel (author) / Slyman, Najwa (author) / Kaeding, Uwe (author) / Newcombe, Gayle (author)
Journal ‐ American Water Works Association ; 100 ; 88-96
2008-11-01
9 pages
Article (Journal)
Electronic Resource
English
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