My experience and thoughts, ...

My experience and thoughts,

There are a number of very good companies out there and a number of very good distributors that can handle everything you are trying to do. They can utilize their design software and quickly provide you recommendations. I recommend you contact them directly to provide you the necessary information based on their product. There are far to many factors that contribute to the answer to your questions. Suction and discharge pressures, sludge concentrations and consistencies, temps, % sludge makeup,  just to name a few. Things like run times, availability of shutdowns for maintenance and how discharge and centrate will be handled, whether direct or capture discharge,  required % solids upon discharge, etc.