While I have not done a wastewater project, I know enough that the concepts of S88 could easily be applied, especially if you are talking about an SBR. After all, batching in F&B utilizes valves, motors, pumps, agitators, vessels, piping and moves liquid product from point A to point B just like in wastewater.
Making Kool-Aid or treating wastewater it's all the same from a control standpoint IMHO.
The biggest value S88 brings in-terms of control have to do with how to identify and breakdown equipment into modular pieces of control (Units, Equipment Modules, Control Modules) and how to break down the process required (Unit procedures, Operations, phases). Common terminology is also a significant advantage (Start, stop, hold, abort, restart...etc).
From an engineering perspective, aligning with S88 gives you the tools and framework to tackle a wide variety of process control systems including "continuous". Despite me not having experience in wastewater, I have the tools to break down the process and create a reasonable control solution.
I assume that even in water/wastewater parameters change and different 'treatments' exist, which could be defined as a "recipe" thus recipe management features of S88 are applicable as well.
- Opinion from an overpaid consultant.