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Photocatalytic removal of pesticide and natural organic material (NOM) pollutants from drinking water Dr. Anne Morrissey Dr. Kieran Nolan Dr. John Tobin. November 17 th 2009. Concept and Operational Benefits. Conventional Treatment - Activated Carbon / Flocculation.
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Photocatalytic removal of pesticide and natural organic material (NOM) pollutants from drinking water Dr. Anne Morrissey Dr. Kieran Nolan Dr. John Tobin November 17th 2009
Concept and Operational Benefits Conventional Treatment - Activated Carbon / Flocculation Novel Treatment Technology - Photocatalysis • Advantages: • Degradation by mineralisation • Reusability of TiO2 • Cheap and nontoxic TiO2 • Photo Fenton viable in sun light • Advantages: • Established techniques • Simple operation • Cost efficient • Disadvantages: • Difficult to remove trace levels • Disposal or regeneration problem • Removal failures • Potential to form THMs Photocatalysis – Scale up • Photocatalysis – Scale up • Examine potential of photocatalysis on a larger scale • Studies on actual water samples • Larger scale study on simultaneous removal of pesticides and NOMS
Funding • Proof of Concept • Innovation Partnership Technology implementation Timeline, Deliverables and Commercial Benefits present 3 years ca. 10 years Technology Development Phase Realisation Phase • Benefits • Optimised procedure for: • Removal of contaminants • Removal of THM precursor • Greater understanding of effects of Natural Organic Materials on water treatment • Simultaneous degradation of pollutants and NOMS • Testing on multi-component systems • Testing in the field • Retrofitting possible Model Plant