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2. Purolator Filters - Wikipedia

   en.wikipedia.org/wiki/Purolator_Filters

   History Foundation and early history A modern Purolator oil filter. The company was founded in 1923 as Motor Improvements, Incorporated in New York City. The company's Purolator (initially stylized PurOlator and sometimes Pur-O-Lator) oil filtration device, invented in 1922 by Ernest John Sweetland and George H. Greenhalgh, was standard equipment on early 1920s Chrysler automobiles after being ...

3. Microfiltration - Wikipedia

   en.wikipedia.org/wiki/Microfiltration

   Microfiltration. Microfiltration is a type of physical filtration process where a contaminated fluid is passed through a special pore-sized membrane filter to separate microorganisms and suspended particles from process liquid.

4. Oil filter - Wikipedia

   en.wikipedia.org/wiki/Oil_filter

   Oil filter. An oil filter is a filter designed to remove contaminants from engine oil, transmission oil, lubricating oil, or hydraulic oil. Their chief use is in internal-combustion engines for motor vehicles (both on- and off-road ), powered aircraft, railway locomotives, ships and boats, and static engines such as generators and pumps.

5. Rotary vacuum-drum filter - Wikipedia

   en.wikipedia.org/wiki/Rotary_vacuum-drum_filter

   Rotary vacuum drum filter. Rotary vacuum drum filter (RVDF), patented in 1872, [2] is one of the oldest filters used in the industrial liquid-solids separation. It offers a wide range of industrial processing flow sheets and provides a flexible application of dewatering, washing and/or clarification. A rotary vacuum filter consists of a large ...

6. Biofilter - Wikipedia

   en.wikipedia.org/wiki/Biofilter

   A biofilter is a bed of media on which microorganisms attach and grow to form a biological layer called biofilm. Biofiltration is thus usually referred to as a fixed–film process. Generally, the biofilm is formed by a community of different microorganisms ( bacteria, fungi, yeast, etc.), macro-organisms ( protozoa, worms, insect's larvae, etc ...

7. Ultrafiltration - Wikipedia

   en.wikipedia.org/wiki/Ultrafiltration

   Ultrafiltration. Ultrafiltration ( UF) is a variety of membrane filtration in which forces such as pressure or concentration gradients lead to a separation through a semipermeable membrane. Suspended solids and solutes of high molecular weight are retained in the so-called retentate, while water and low molecular weight solutes pass through the ...