There is a lot here to agree ...

There is a lot here to agree with.  The starting point is your discharge consent.  If you are producing a salted cheese process, then this is more difficult to recycle.  If you have a membrane process, then with an additional set of membranes then this water can be reused with treatment reducing volumes.  Any fats should be removed using a DAF plant.  Thereafter, the water may be treated using an aeration system.  I  prefer activated sludge using fine bubble aeration, which provides more consistent results than other systems.  In theory anaerobic digestion (AD) could be used instead, but you still have to get rid of ammonia and phosphate after the process.  Also AD is more difficult to control and you will end up having to feed it with product and or other material such as straw and manure along with cattle stomachs to keep it alive.  The methane produced is dirty and will frequently contain sulphides which is corrosive.  The promise is often better than the reality.