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How does the activated carbon filter work? Jun 10, 2018


Activated carbon is made from wood, wood scraps, fruit core, coconut shell, coal or petroleum base slag, which is carbonized at high temperature, and is then activated by hot air or water vapor.

Its main function is to remove the dissolved organic matter of chlorine and chlorine and other molecular weight from 60 to 300 Dalton.

Surface is granular activated carbon, the interior is porous, hole the size of about 1 onm ~ lA jam-packed with capillary, 1 g of internal surface area activated carbon as high as 700-1400 m2, and the capillary inner surface and the particle surface is adsorption.

Active carbon filter.jpg

Factors affect the ability of the activated carbon to remove organic matter is the area of the activated carbon itself, the size of the holes, and cleared the molecular weight of organic matter and its Polarity (Polarity), it mainly physical adsorption ability to eliminate clutter, when, after the adsorption capacity of saturated adsorption will drop down too much impurity pollution downstream water quality, so must regularly use thrust adsorption on its way to remove impurities.

This activated carbon filter has to be updated if its adsorption capacity is obviously reduced.

The difference in the concentration of TOC (or the number of bacteria) measured in water and water is one of the bases for the replacement of activated carbon.

Some poor reverse osmosis membrane resistance to chlorine, so before reverse osmosis to have the processing of activated carbon, chlorine can effectively be activated carbon adsorption, but the holes on the activated carbon adsorption of bacteria reproduce, for larger molecular organic matter removal at the same time, the effect of activated carbon co., LTD., so you have to reverse osmosis membrane in strengthening the behind.

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