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    A trickling filter question

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    A trickling filter has the following:
    - Average Wastewater Flow: 500 gpm
    - Recirculation Ratio: 0.4
    - Influent into the Primary Clarifier: 500 mg/l
    - The primary clarifier BOD removal efficiency: 80%
    - Filter Diameter: 54 feet
    - Depth of media: 6 feet

    Question #1: Calculate the BOD loading

    Question #2: Hydraulic loading,

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    https://brainmass.com/chemistry/chemical-measures-of-environmental-indicators/trickling-filter-question-580923

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    I've solved the question but I am not sure what units you want these in. Let me know if you have trouble converting units.

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    Solution Summary

    The BOD loading rate and hydraulic loading rate are calculated for a trickling filter.

    $2.19