Engineering360: "Wastewater Systems for Tugboat Use"

The last paragraph in the article has this sentence :

" Clean water from the mixed liquor in the sword chamber " .

Can an explanation be provided on how to obtain clean water from mixed liquor ?

And, what exactly is : mixed liquor ?

And, what is a : a sword chamber ?

These must be terminologies related to this type of occupation.

I checked google, and this is what I found :

1. Clean water can be added to mixed liquor, thus making a watered down mixed liquor drink, but the water can't be removed from the mixed liquor.

2. Mixed liquor is commonly referred to as a, " cocktail ".

3. A, sword chamber is an ante room where Knight's store their battle garb.

Here is the Product that is referred to.

I can't help you with the mixed liquor, but the sword chamber is where the "bio-sword" is kept.

Since this is a sewage treatment product, Mixed liquor is probably some kind of sewage slurry.

I think that the term bio-sword might be a company name rather than a trade name.

MLSS (Mixed Liquor Suspended Solids).