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Showing posts with label activated carbon filter. Show all posts
Showing posts with label activated carbon filter. Show all posts

Friday, February 1, 2013

Activated carbon filter Application and Principle


According to the activated carbon adsorption characteristics of activated carbon is mainly used to remove contaminants, decoloring, filtered liquid, gas, but also for the air purification treatment, waste gas recovery (such as in the chemical industry for gas "benzene" recovery), precious metal recovery and refining (such as the gold absorption).

With the development of science, the use of activated carbon is becoming more and more widely, as countries on the ecological environment of attention, activated carbon also to wave the more and more major role.

Activated carbon adsorption filter based on activated carbon for filter material of a kind of pressure filter device, but with ion exchange softening, desalination equipment series, form processing system. Activated carbon adsorption filter not only has the general machinery filter suspended matter function, also can purify with conventional method is difficult to remove the free sex residual chlorine, odor, color and organic impurities, etc. Material: carbon steel, stainless steel, glass fiber reinforced plastic.

Activated carbon filter operation is through the carbon bed to finish. Carbon bed of activated carbon particles have very many microporous and great specific surface area, strong physical adsorption capacity. In addition, the activated carbon surface part of crystals have some oxygen can group, make through the carbon bed of organic pollutants in water by activated carbon adsorption effectively. 

This Activated carbon filter is a kind of more commonly used water treatment equipment, water treatment desalination system as the pretreatment equipment, which can effectively guarantee level after the service life of equipment, improve water quality, prevent pollution, especially after class to prevent reverse osmosis membrane, ion exchange resin, more than the determination of free oxygen poisoning pollution. Activated carbon filter in water, colloid and organic pigments have obvious removal ability. Activated carbon filter is mainly used for removal of organic matter in water, smelling, taste, colour, heavy metal ion, residual chlorine (CL2), etc. As reverse osmosis and electrodialysis, ion exchanger pretreatment. Activated carbon device for these equipment can have very good protection effect.
Activated carbon is the main higher material is made, such as wood, coal, shell, bone, oil residue, etc. And coconut shell is the most commonly used raw material, under the same conditions, coconut shell activated activity, quality and other characteristics are the best, because it has the biggest specific surface

What is Activated carbon/activated carbon filter?

Activated carbon is a kind of the carbonaceous material made of appearance is black, internal pore structure developed, specific surface area, and strong adsorption ability of microcrystalline carbon materials. It is a commonly used adsorbent, catalyst or catalyst carrier, which are widely used in almost all the national economy departments and People's Daily life.

Due to the sources of the raw materials, manufacturing methods, appearance shape and application of different occasions, the types of activated carbon (species) a lot, so far there is no accurate statistical materials, it is estimated that the world not less than one thousand kinds of activated carbon varieties.

1, according to the raw material source points
Wood activated carbon, wood activated carbon is to point to by wood, crop straw, bamboo and its processing waste fruit shell as raw material to manufacture of activated carbon products. Animal bones, blood carbon - made use of animal bones, blood as raw materials, according to certain method made of carbon (some carbon content only more than ten) also has not poor adsorption performance, strict sense this product is not as activated carbon. But it is also often used to call it activated carbon.

Mineral raw material activated carbon - this kind of activated carbon is mainly refers to by all sorts of coal and oil and its processing products (including coal tar, coal tar, coal carbocoal, petroleum hydrocarbons, oil residue, oil drain table, petroleum coke, etc.) as raw material of activated carbon.
Other raw materials for activated carbon , scientific research and application specific needs and expand the activated carbon sources of the raw materials, also can use synthetic resin, waste rubber and waste plastic, life and industrial waste of organic matter as raw materials manufacturing activated carbon.
Now there is with metal carbide as raw material, the metal is removed and making hole special developed activated carbon.

Regeneration of activated carbon filter, in order to make full use of resources, many in different occasions to have been used and has lost its adsorption activated carbon through different methods of processing and restored all or part of the adsorption performance, repeated use. Put out adsorption properties of activated carbon compound adsorption activity process that activated carbon regeneration, through the process of regeneration of activated carbon regeneration of activated carbon is processing. Regeneration method is hot regeneration, chemical elution, solvent extraction regeneration, biological regeneration, etc.

3, according to appearance shape classification
Powdered activated carbon
Grain activated carbon powder activated carbon and activated carbon particles in addition to two kinds of outside, still have other shapes, such as activated carbon fiber, carbon fiber blanket, activated carbon cloth, honeycomb activated carbon, activated carbon plate, etc.