HiPOx system removes 1,4-Dioxane from groundwater

A new treatment technology is now being commissioned at a groundwater remediation site in Mountain View, California, USA.

A new treatment technology is now being commissioned at a groundwater remediation site in Mountain View, California, USA. The HiPOx treatment system will remove the pollutant 1,4-Dioxane, which cannot be removed with conventional air stripping or carbon technology, and solvent contamination.

Applied Process Technology was awarded the contract in early 2003 to treat groundwater contaminated with 1,4-dioxane at a site located within the Middlefield-Ellis-Whisman (MEW) US Environmental Protection Agency (EPA) Superfund site in Mountain View. Applied delivered the treatment system at the end of November. The system is now going through final commissioning and will be fully operational shortly.

The HiPOx advanced oxidation technology mixes hydrogen peroxide and ozone to form hydroxyl radicals, an aggressive oxidant that reacts chemically with volatile organic compounds (VOCs), including 1,4-dioxane, vinyl chloride, TCE, PCE, MTBE, TBA and other compounds, converting them into benign carbon dioxide and water. Carbon dioxide is vented off, while the cleansed water is returned to the ground or put to productive use. HiPOx destroys contaminants onsite rather than transferring them to another medium for further treatment and disposal.

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