We have a 7bbl brewhouse, 30bbl CCTs and BBTs. We have been side streaming our yeast into 55 gallon drums and having them hauled off. Very little yeast enters the sewer system. Our TSS tested at 400 last month however our BOD was 12200. The day they tested we where brewing and not cleaning tanks therefore no yeast entered the sewer system. The only waste was excess wort from our mash. I assume due to how they test sample and analyze 5 days later there is a yeast culture growing out of control in their lab. I have no idea how that number could be this high if not the case. They have no suggestions for me either.
I'm trying to figure out how to get our BOD levels down as we are not streaming very much into the system and hauling off 99.9% of any BOD material.
What are other doing to keep this in control? Caustic additions to the trap or flow?
$1000 sewer bills are killing me.
Trent
I'm trying to figure out how to get our BOD levels down as we are not streaming very much into the system and hauling off 99.9% of any BOD material.
What are other doing to keep this in control? Caustic additions to the trap or flow?
$1000 sewer bills are killing me.
Trent
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