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fine bubble diffusers
Fine bubble diffusers are a pollution control technology used to aerate wastewater for sewage treatment.
==Description==
Fine bubble diffusers produce a plethora of very small air bubbles which rise slowly from the floor of a wastewater treatment plant or sewage treatment plant aeration tank and provide substantial and efficient mass transfer of oxygen to the water. The oxygen, combined with the food source, sewage, allows the bacteria to produce enzymes which help break down the waste so that it can settle in the secondary clarifiers or be filtered by membranes. A fine bubble diffuser is commonly manufactured in various forms: tube, disc, plate, and dome.〔U.S. Environmental Protection Agency, Washington, D.C.(2009). ("Fine Bubble Aeration." ) Wastewater Technology Fact Sheet. Document No. EPA-832-F-99-065.〕
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