What is sewer liquor?

"Sewer liquor" is not a commonly used term in the context of wastewater treatment or sewage.

It's possible that you've encountered a variation of the word "sewer liquor" or it's being used in a specific, niche context.

To understand what you're looking for, could you please clarify:

* Where did you hear this term?

* What is the context? (e.g., scientific research, industrial process, etc.)

* Do you mean "sewer sludge"?

Once I understand the context, I can give you a more accurate and helpful answer.