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Thread: BOD's and Septic System

  1. #1
    Join Date
    Nov 2002
    Location
    Granby, CT
    Posts
    30

    BOD's and Septic System

    Does anyone out there know if it's possible to install a brewing system (7bbl) that must be connected to a septic system?

    If so must there be a wast-water treatment tank?

    If I remove the spent grain and the yeast water I assume it is possible?

    Thanks

  2. #2
    Join Date
    Nov 2002
    Location
    Cambridge, Ontario Canada
    Posts
    199
    With a 7 bbl system, you leave yourself within the realm of possibility but I would think it is dependent upon the chemical nature of the load your putting in the system.

    Septic systems typically deal with a fairly consistent organic load and, when working well, the bacterial action thrives on that consistency.

    Variable pH feeds and bacterial killing sanitizers would not be recommended. Can you use a 3 tank CIP system where you top up strength as needed and send CIP rinse water to a neutralizing waste tank? Can you dispose of this liquid elsewhere?

    If you can screen your liquid waste stream (parabolic screen) you would reduce the BOD load but this is a bit advanced for a small system.

    If you produce 1000 bbl anually, can your septic system deal with 5000 bbl of liquid waste plus all other inputs?

    I have put a plastic holding tank on a trailer before and pushed all brewhouse waste (inc. yeast into it) but we had a farmer nearby to pick it up on demand. I hope this helps and let us know what happens.

    -Rob Creighton-

  3. #3
    Join Date
    Nov 2002
    Location
    Granby, CT
    Posts
    30
    Rob,

    Thanks for the input - you confirmed a lot of research we gathered over the past six months.

    I'll update this forum after installation and first brew.

    Thanks again.

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