RO Salt Rejection
The percentage of dissolved solids retained by the RO membrane, computed from feed and permeate concentrations. Salt passage is its complement, and both are standard membrane performance metrics published per element.
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RO Salt Rejection Calculator
Calculate membrane salt rejection percentage from feed and permeate TDS concentrations.
Rejection (%) = (1 - (Cp / Cf)) × 100 RO Salt Passage Calculator
Determine salt passage percentage through RO membranes and verify complementary rejection balance.
Passage (%) = (Cp / Cf) × 100 RO Permeate TDS Calculator
Project expected permeate total dissolved solids based on feed water salinity and rejection specs.
Cp = Cf × (1 - R / 100) RO Mass Balance Calculator
Simplified TDS-based dissolved-solids balance for RO feed, permeate, and concentrate flow and quality checks.
Qf · Cf = Qp · Cp + Qc · Cc Related Equipment
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Neutral references for engineering context. Product and performance claims are the manufacturers' own published data, not EngiMetric conclusions.