Home » News & Events » Hydrogen Peroxide and Refinery Wastewater

The November/December 2016 issue of Industrial Water + Wastes Digest featured an article on Refinery Wastewater and Refining Processes and USP Technologies.

The article discusses how in 2010, at a refinery complex in the Northeastern United States – hydrogen peroxide helped to maintain dissolved oxygen levels during an outage of one of two aeration basins in its activated sludge wastewater treatment system.

Aeration basin

Aeration basin

“During the outage, all of the refinery wastewater would need to be routed through the one remaining aeration basin. Because the refinery periodically had difficulty maintaining dissolved oxygen (DO) levels with both aeration basins in service, they needed a temporary and non-capital means to provide the biological treatment system with supplemental DO during the maintenance outage.

Hydrogen peroxide (H2O2) has been used as a source of supplemental DO in activated sludge treatment systems for decades. In the aeration basin mixed liquor, H2O2 converts to DO according to the following reaction: 2 H2O2→O2 + 2 H2O”

Hydrogen peroxide has been used as a source of supplemental dissolved oxygen in activated sludge treatment systems for decades.