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Enhanced N Removal using Horizontal, Subsurface Flow, Fixed Film Beds with Recycle

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Abstract:

The waste treatment and research facility at the Grand Prairie Rest Area, is located on is located on I-49 in central Louisiana and maintained by the Louisiana Department of Transportation and Development (LADOTD) A variety of data has been collected on a bi-weekly basis since the facility opened in 1996. Treatment plant details, waste characterization, and long term BOD and TSS removal efficiencies have been presented at previous WEFTEC conferences (WEFTEC 1999, 2002) and elsewhere (Griffin, Jr., D.M. and Rishi Bhattarai, 2000, Bhattarai, Rishi Raj and D.M. Griffin, 1999). Because the system was predominantly anaerobic in nature, nitrogen removal was minimal. The purpose of this work was to examine ways to enhance the removal of nitrogen from the treated effluent in an effort to meet expected future NH3 limitations while minimizing system complexity and operational effort.

Document Type: Research Article

DOI: https://doi.org/10.2175/193864704784138179

Publication date: 2004-01-01

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