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Advanced Treatment TechnologyActivated CarbonOzoneUV LightAdvanced Oxidation (UV/Peroxide)

Activated CarbonAdsorption (surface adherence )Non-polar, coal based, and relatively cheapSurface Area is criticalCharacteristic of the chemical to be adsorbedHydrophyllic polar compounds are hardestHydrophobic non-polar compounds the easiest

OzoneVery strong oxidantFormed when Oxygen (O2) is excited in a high voltage (~1500 volts) electrical field (corona discharge)Reactions: 3O2 2O3 O3 O2 + O

Ultraviolet LightNon-chemical energy source (similar to heat)

Advanced Oxidation Processes(AOP)Ozone/Peroxide H2O2 + H2O HO2-+ H3O+ HO2- + O3 .OH + O2- + O2the hydroxyl radical (.OH) is the neutral form of hydroxide, and is very hungry for a Hydrogen molecule to react with (and finds it in organic compounds) These are high-energy reactants looking for something to chew upUV/H2O2 reaction similar, producing two hydroxl radicals (.OH)