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?
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.
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.