Industrial water guide
Membrane Rejection Calculator
Calculate apparent concentration rejection from feed and permeate measurements.
Water-system note: treatment requirements depend on source water, intended use, equipment, permits and local rules. Real systems require qualified design, operation and laboratory verification.
Use the same constituent and units for both samples.
How to use this tool
These browser-side tools provide water-balance and performance arithmetic only.
No tool establishes chemical doses, pressures, membrane recovery targets, discharge limits or treatment setpoints.