Microfiltration (0.1μ – 2.0μ)
The microfilters used in our systems are almost exclusively PTFE (Teflon®). Microfilters or MF membranes are used to remove small suspended solids, large colloidal material, some emulsions, and most bacteria. MF membranes do not hold back any dissolved solids. MF membranes are especially useful in dewatering slurries such as titanium dioxide and calcium carbonate. Teflon MF membranes are the most robust of all the membrane types; they can withstand temperatures of 130°C (266°F) and as they are chemically inert, can handle continuous pH levels of 0-14. MF membrane operating pressures are usually between 30 and 100 psi (~2 to ~7 bar).
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