Laserfiche WebLink
MAR-30-2000 16 36 CAMBRIA 510 420 9170 P 04/10 <br /> increase the temperature or pressure of the treated water because of the low ppm or sub- <br /> ppm concentration of the contaminates <br /> Advanced oxidation chemistry using ozone and hydrogen peroxide to create hydroxyl radicals <br /> is well known The overall balanced reaction for ozone and hydrogen peroxide to yield <br /> hydroxyl radical is; <br /> 203 + H202 --)� 2•OH + 302 <br /> The following represents the oxidation of organic compounds- <br /> Organic 02 Intermediates 02 CO2 + H2O <br /> Compounds i0H. 11 UH-P <br /> The fundamental difference between 'traditional' applications of AQP and Applied's patented <br /> HiPOx technology2 is in the high precision management and delivery of reagents In <br /> "traditional" applications, ozone, 2-3% by weight, is injected at a single point through a <br /> diffuser and allowed to bubble-up, at atmospheric pressure, through the contactor. VOC <br /> destruction is achieved over contact times as long as 20 minutes (PCE for example) The <br /> • I"IPOx technology enhances and maximizes mass transfer of ozone into the water. Improved <br /> mass transfer is accomplished with higher ozone concentration (8-10% by weight versus 2- <br /> 3% wt.), higher operating pressure (35-45 psig versus ambient pressure) and efficient mixing <br /> Installing multiple reaction zones and ports further enhances the process efficiency <br /> In addition, traditional ozone/hydrogen peroxide AQP systems had limited application in <br /> drinking water applications due to the formation of carcinogenic bromate from bromide and <br /> the inability to control such formation below regulatory limits With multiple reaction zones of <br /> the HIPOx technology, the formation of bromate is avoided or substantially minimized. <br /> HIPOx systems use a series of injector modules in-line with the contaminated fluid flow as <br /> represented in Figure 1 H202 and 03 are infected at a pressure of between 20 and 60 psi <br /> The dosed fluid immediately flows through a mixing section and is allowed to pass through a <br /> brief reaction zone. The critical design feature of the modular approach is the extremely low <br /> instantaneous 03 H2O2 ratio. <br /> Sow= R H McNeilly M,AppWbury T A.and Gumtalson D PMXOSS And Appetafus far Wddaflvn of Contaminants lA Water;if S PMent No 4,851 407(1998) <br /> Page 3 <br />