Image: Nitrification Process Tank
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Nitrification_Process_Tank.jpg (555 × 361 pixels, file size: 36 KB, MIME type: image/jpeg)
Description: View of a nitrification process tank at a sewage treatment plant.
Title: Nitrification Process Tank
Credit: U.S. Environmental Protection Agency (EPA), "Primer for Municipal Wastewater Treatment Systems." EPA 832-R-04-001. p. 18.
Author: U.S. Environmental Protection Agency, Washington, D.C.
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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