Engineering Topic Knowledge Base

RO Membrane Selection

Choosing membrane and element families by feed salinity, target permeate quality, operating pressure window, and cleaning compatibility. Selection is driven by manufacturer projection data rather than single nominal ratings.

Related Engineering Tools

Water Live Tool

RO Recovery Calculator

Calculate RO permeate and concentrate flow from feed flow and system recovery rate.

Recovery (%) = (Permeate Flow / Feed Flow) × 100

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Water Live Tool

RO Permeate TDS Calculator

Project expected permeate total dissolved solids based on feed water salinity and rejection specs.

Cp = Cf × (1 - R / 100)

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Water Live Tool

RO Design Studio

Build a preliminary RO system design with feed inputs, staging, custom membrane data, sequential element estimates, balances, and warnings.

Q = A × S × (ΔP − Δπ)

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Water Live Tool

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

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Related Equipment

Water Reverse Osmosis

RO Membranes

Semi-permeable membrane elements used in reverse osmosis systems to reject dissolved salts and other constituents under applied feed pressure. Performance is described by the manufacturer (flow, rejection, pressure limits) rather than by third-party ratings.

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Water Reverse Osmosis