WC&P is proud to offer this comprehensive glossary to our readers and website visitors. This living document is intended to serve as an easy-to-use reference source for information on the POU/POE water treatment industry.
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Transmembrane pressure (TMP)
The force that drives liquid flow through a cross flow membrane. In cross flow devices, the TMP is calculated as an average related to the pressures of the inlet, outlet and permeate ports. The TMP can be expressed as: Where: Pf = Feed pressure Pc = C