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Membrane filtration

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'''Microfiltration''' is a direct extension of conventional filtration into the submicrometre range. Microfiltration membranes have pore sizes typically in the range 0.01–12 μm and do not separate molecules but reject colloidal and suspended material at operating pressures of 1–2 bar. Microfiltration is capable of sieving out particles greater than 0.05 μm. It has been used for water treatment in combination with coagulation or PAC to remove particulates and some dissolved organic carbon prior to reverse osmosis membranes and to improve permeate flux.

==Construction, operations and maintenanceAcknowledgements==* [http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0CGcQFjAB&url=http%3A%2F%2Fwhqlibdoc.who.int%2Fpublications%2F2011%2F9789241548151_eng.pdf&ei=0Za6T7rBFMKZiQLZhOH1Bg&usg=AFQjCNGx2Q3Rc5yFmbygAIgmJOjg5CSp7g&sig2=8YRhyKpjfeGy8xqp9j8X4Q Guidelines for Drinking-water Quality.] Fourth edition. WHO, 2011.

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