What is Micron Cartridge Filter and pore size of MCF and its uses?

In this article you will get to know what MCF is and what is its use in water and wastewater treatment. So keep on reading.

What is Micron Cartridge Filter (MCF)?

Micron Cartridge Filters are filters designed to reduce water to a specific micron grade usually below 30-50 micron. This is accomplished via the application of specifically designed cartridge elements that are enclosed within the filter vessel. Water, liquid, or solvent that requires filtering is exposed to the cartridge as it circulates within the housing and through the filter element. Submicron particles can be removed by cartridge filters as well.

What are the basic components of Cartridge Filter?

Filter cartridges usually consist of several components, which include:

Filt?er Media: It is a fundamental element of the filter cartridge that absorbs and removes impurities from the fluid being filtered. Paper, polypropylene, polyester and activated carbon are all examples of filter media materials.

End Cap?s: These are the components that secure the filter media firmly in position and form an airtight connection between the cartridge and the filter housing.

Co?re: The core of the filter cartridge is the core element that supports the filter media and protects it from bursting under pressure.

Gaskets and O-rings: These are the components that act as a seal between the filter cartridge and the filter housing, preventing liquid from passing through the filter.

Support Cage: It is a metal or plastic enclosure that imparts stability to the filter media and enables it to maintain its original shape when in use.

Size of MCF:

All cartridge filters have micron ratings which indicate the smallest possible particle size that the filter can remove. One micrometer is equal to 0.000039 inch. MCF are available in a range of sizes that vary from 0.1micron to 100microns. Typically, 10 cartridge elements, 5 cartridge elements, and 1 cartridge element are used for Reverse Osmosis.

The size of particles screened by a micron filter is determined by the cartridge rating. The suggested optimal temperature for polypropylene filter cartridges is up to 800F. Micron filters function at extremely low pressures. Cartridge micron filtering systems work best when the contamination level is less than 10 ppm.

Where do we use MCF in water and wastewater treatment?

MCF is a technology commonly employed in the removal of particles and pollutant compounds from water, with primary applications in Wastewater Treatment Plants and pre-treatments in Desalination and Drinking Water Treatment Plants.

Pressure is used to filter the water, enabling it to pass through while retaining the particles and undesirable contaminants, until the filter gets saturated and needs to be replaced with fresh ones. The pressure differential between the input and exit pressures is used to calculate saturation. When the pressure difference exceeds the specified limit, the substitution is performed since the energy cost of continuing to operate those cartridges does not compensate.

These filters are enclosed inside a container or casing, which can be made of GRP or carbon/stainless steel depending upon the project. Cartridge filters have industrial uses such as food processing, chemical processing, as the final phase of protection for reverse osmosis membranes, potable water purification, and so on.

Which Filter Cartridge Should One Select?

Now the question arises, what is the criteria for selection of a filter cartridge? Choosing a filter cartridge is thus a personal choice. Before you buy one, you should think about your requirements and preferences. It is essential to test the most effective filter using various cartridges or microns.

Plated surface filters are typically used for pre-filters ranging from 30 to 50 micron. Dual-grade depth filters with a spectrum of 1-5 micron filters can be utilized for fine silt. Such filters begin at 50 microns on the exterior and pass through a wide spectrum of silt particles to microns on the inside. Dual-grade filter cartridges are 2.3 times the volume of sediment apart from standard spun or coiled filters.

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