Chemical disinfectants are evaluated based on residual disinfection, however dose for UV reactors cannot be measured as simply. Orica has recently undergone an extensive program, where the pathogen reduction capability of Orica's UV reactors have been validated in accordance with the USEPA 2003 and 2006 UV Disinfection Guidance Manual protocols and the NWRI 2003 guideline document for water, recycled water and wastewater treatment applications.
Recycled Water Applications
Municipal wastewater reuse is a large and fast growing market segment. Orica has recognized the need to capitalise on UV Disinfection as an effective and environmentally friendly alternative to chlorine. As part of a Class A water recycling facility in Victoria, Orica has recently installed a validated 5.4Ml/day UV Disinfection system.
Drinking Water Applications
Drinking water disinfection is an important application for UV Disinfection. Orica UV technology is playing a particularly increasing role in remote areas where water distribution networks are not commercially viable. A good example of Orica's involvement in providing decentralized water treatment solutions is evidenced in a 2007 project, where we installed numerous UV Disinfection systems across Australia in remote schools.
Figure 2 shows an Orica UV system. The system is completely secure, can be easily relocated and is operator friendly.