Impact of Wet-Weather Peak Flow Blending on Disinfection and Tre...

Courtesy Recent Science Inventory records from the EPA  Wed, 07/22/2009 - 08:37

A U.S. EPA study evaluated the impact on disinfection during peak flows (wet-weather flow events) when a portion of the flow to the wastewater treatment plant (WWTP) bypasses secondary treatment prior to disinfection.

The practice of bypassing secondary treatment during peak flows, referred to as ?blending,? takes place when the volume of primary treatment flow exceeds the capacity of the secondary treatment.

The bypassed flow is only treated by primary clarification before it is recombined with the fully treated secondary...

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