Titanium Advanced Oxidation Process (AOP) System “ The most effective Water Disinfection S ystem on the Market Today” Advanced Hydro Ltd www.advancedhydro.co.uk
What is the Titanium AOP System? The AOP system is a flow through unit which uses innovating technology to sterilise water. WRAS approved, it kills all waterborne organisms, oxidises pollutants and offers significant advantages over conventional technologies. How Does It Work? Water to be treated passes through the AOP units as shown in Fig.1. Figure 1 Water In Tube UV Lamp Water Out OH OH OH UV Light Pathogen/ OH Organism TiO 2 Coating UV light falling on the Titanium Dioxide (TiO 2 ) inner coating, generates Hydroxyl Radicals (OH•) via catalytic oxidation. The combined effect of the catalytic oxidation and the hydroxyl radicals break down all microorganisms and organic pollutants in the water stream significantly better than standard UV. Due to their extreme reactivity OH• only exist for a few milliseconds (10 -3 s). Hence sterilisation takes place within the AOP unit itself with only sterile water being discharged. The Hydroxyl Radicals produced attack and break down the cell wall/membrane of any pathogens present. Advanced Hydro Ltd www.advancedhydro.co.uk
Hydroxyl Radicals are one of the most powerful oxidising agents known. This is shown in Table 1, as is the redox potential of the catalytic oxidation itself. Table 1 Oxidation Oxidant Formula Strength (eV) TiO 2 /UV/H 2 0 3.28 Catalytic Oxidation Fluorine F 2 2.87 OH • Hydroxyl Radical 2.8 Singlet Oxygen O (1D) 2.42 Ozone O 3 2.07 Hydrogen peroxide H 2 O 2 1.78 Permanganate MnO 4 1.67 Hypochlorous acid HOCl 1.48 Monochloramine NH 2 Cl 1.4 Chlorine Cl 2 1.36 Hypobromous acid HOBr 1.33 Oxygen O 2 1.23 Bromide Br 2 1.07 Chlorine dioxide ClO 2 0.95 Due to their oxidative strength Hydroxyl Radicals destroy and breakdown all organisms found in water. Hence the AOP system is highly effective against: Bacteria (Including all forms of legionella) Fungi and Yeasts (Reducing biofilms) Protozoa (Including amoeba) Viruses Advanced Hydro Ltd www.advancedhydro.co.uk
Mechanism and Chemistry The Titanium AOP System relies on the following mechanisms: Photocatalytic oxidation via Modified TiO 2 Coating UV Photolysis UV/H 2 O 2 Photochemical Process Chemistry 2 OH • TiO 2 (semi-conductor) + hv + H 2 O 2OH • H 2 O 2 + hv O 2 + hv O + O 2OH • O + H 2 O Mechanisms of AOP Oxidation on Contaminants Hydrogen abstraction HO • + RH R • + H 2 O Electron transferring HO • + RX RX + + HO - Advanced Hydro Ltd www.advancedhydro.co.uk
AOP System Advantages • The AOP System kills and destroys ALL waterborne organisms • No by-products or bio-toxins remain • Chemical free • Environmentally friendly, low cost with low maintenance and running costs • Oxidation of and destruction of pollutants • Prevents and eliminates biofilms • Highly effective and efficient • Automatic control and compact design Advanced Hydro Ltd www.advancedhydro.co.uk
Applications Cooling Towers Building Services Specialist Applications Food & Beverage Marine Waste and Process Water Pharmaceutical Swimming Pools Drinking Water Pollutant (COD/BOD) Reduction Advanced Hydro Ltd www.advancedhydro.co.uk
Testing and Performance Verification The AOP System has been extensively tested by the Vitens Laboratory in Holland, the foremost water laboratory in Europe. Test results showed a Log Reduction in excess of 6 CFU for Legionella. The efficiency in kill rate is shown by the following graph. The graph also illustrates that even at twice the maximum flow rate the AOP Unit still achieved an efficiency rating of 100%. Titanium AOP 1 (Max flow rate 17 L/min) Max Flow Full test details are available from Advanced Hydro Ltd. Size Availability and Flow Rate The AOP units are available in the following sizes by flow rate. Unit Flow Rate Flow Rate m 3 /hr L/min AOP 1 1 17 AOP 5 5 84 AOP 10 10 166 AOP 20 20 335 AOP 50 50 835 AOP 100 100 1,670 AOP 400 400 6,666 Advanced Hydro Ltd www.advancedhydro.co.uk
Further Information For further information or to find out how the AOP System can benefit your water systems please contact: Advanced Hydro Ltd Tel: 01233 469 221 Fax: 01233 469 224 Info@advancedhydro.co.uk www.advancedhydro.co.uk Address: Advanced Hydro Ltd Clevedon Court Green Lane Challock ASHFORD Kent TN25 4BW Advanced Hydro Ltd www.advancedhydro.co.uk
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