Air Products declared last week that the HiPOx® technology for which it has exclusive marketing rights, has been granted conditional acceptance by the California Department of Public Health for unrestricted water reuse.

An ozone-based advanced oxidation process (AOP) water treatment technology, HiPOx has been granted the conditional acceptance under Title 22 of the California Code of Regulations.

The clearance makes HiPOx the first ozone-based technology validated to meet disinfection criteria for treating wastewater, also making it available for several water reuse applications including agricultural, landscaping, fish hatcheries, and a wide variety of potable and other industrial applications.

Air Products holds the exclusive rights to market the HiPOx technology, licensed from Applied Process Technology, Inc., in the US and Canada for municipal wastewater and drinking water applications at designated flow rates.

Debbie Anderson, Water Systems Business Development Manager at Air Products, commented, “This is very exciting news for our business. Water quality and scarcity are major issues globally. In the US, California tends to be at the forefront in setting the standard for regulations regarding water reuse.”

“Since the HiPOx technology is the only ozone-based technology to be accepted under California’s Title 22 requirements, it provides a significant advantage for Air Products to be able to supply this offering to customers in the broad water reuse market,” Anderson added.

Maximised production and flexibility
HiPOx is a packaged water treatment system with a unique plug flow reactor that efficiently injects and mixes ozone with hydrogen peroxide, to maximise the production of hydroxyl free radicals.

Hydroxyl free radicals are the most powerful oxidant available for water treatment to destroy pathogens and difficult to treat organic contaminants including 1,4-dioxane, chlorinated solvents, petroleum hydrocarbons, and endocrine disrupting chemicals (EDC). HiPOx has the flexibility to operate in either ozone only mode or AOP mode with peroxide addition.

Additionally, in the AOP mode, HiPOx technology has the capability to provide patented bromate control.

Beyond disinfection, several studies have been conducted on the presence of EDCs, pharmaceuticals, and other emerging contaminants in drinking water and wastewater. Ozone and ozone-based AOP have been shown to provide superior results over conventional ultra violet and chlorine-based disinfection technologies.