Here is a table with some typical brewery wastewater BOD values, as well as COD, TSS, and pH. Sorry for the weird format, there is a lot of data here.
|pH||COD, mg/L||*BOD, mg/L||TSS, mg/L||Generalizations|
|Wort||5.5||250,000||400,000||150,000||240,000||Darker ales at the high end, lighter lagers at the low end|
|Beer||4.5||125,000||300,000||75,000||180,000||Darker ales at the high end, lighter lagers at the low end|
|Trub||See sidestream below|
|Yeast||4.5||120,000||200,000||72,000||120,000||60,000||100,000||Autolysed yeast is about the same|
|Propylene glycol||7||600,000||360,000||Varies with concentration, but you get the point, very, very high!|
|Defoamer||700,000||420,000||Sometimes used in fermenter blow off buckets|
|Brewery wastewater without sidestreaming||4.5||4,000||17,000||2,400||10,200||1,500||8,000|
|Brewery wastewater with sidestreaming||4.5||1,800||9,000||1,080||5,400||400||1,000||CIP, packaging, rinsing, general wash down water|
|Side stream wastewater||4.5||5,000||40,000||3,000||24,000||200||7,000||This is spent yeast, trub, waste beer, etc.|
|Domestic wastewater||7||210||1,100||100||500||20||300||Most municipal treatment plants are designed for wastewater like this|
Understand this can vary quite a bit from brewery to brewery, but this will give you an idea of what we’re dealing with here.