Removal of micro-pollutants from drinking water with advanced oxidation processes
Sander, Fabian (2009)
Keski-Pohjanmaan ammattikorkeakoulu
2009
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-200910074824
https://urn.fi/URN:NBN:fi:amk-200910074824
Tiivistelmä
This thesis determines the feasibility of ozone gas and ultraviolet (UV)technologies to reduce pollutants from drinking water. The merging of both techniques, ozone and UV, is known as a so called advanced oxidation process (AOP). ITT Wedeco is developing new technologies to meet the growing concern of water works to remove micro-pollutants from their water.
The emphasis of this work was put on the formation of the oxidation by-product bromate and the removal of the solvent 1.4 dioxane from drinking water. Three different ozone gas diffusing technologies were compared and evaluated. An
injector was compared to a gas diffuser and micro porous tubing. One part was the reduction of the pollutant, but the principal item of this pilot study was to control the formation of bromate, due to the immediate destruction of ozone gas through ultraviolet light into hydroxyl radicals.
The emphasis of this work was put on the formation of the oxidation by-product bromate and the removal of the solvent 1.4 dioxane from drinking water. Three different ozone gas diffusing technologies were compared and evaluated. An
injector was compared to a gas diffuser and micro porous tubing. One part was the reduction of the pollutant, but the principal item of this pilot study was to control the formation of bromate, due to the immediate destruction of ozone gas through ultraviolet light into hydroxyl radicals.