Due to an increase in flows and loads and a new limit on effluent nitrate, the City of Merced was required to expand its wastewater treatment plant and provide improved denitrification. Process modeling and simulations were needed to design the improvements. To assure modeling accuracy,
a wastewater characterization study was conducted, including intensive monitoring of influent, primary effluent, and secondary effluent and a Low F/M SBR bioassay. The results showed significant deviations in key modeling parameters from BioWin default values.
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