The working principle and specific application of activated carbon filter
Activated carbon filter, a filter device in a tank, the shell is generally stainless steel or glass fiber reinforced plastic, and the interior is filled with activated carbon. Activated carbon filters are used to filter free matter, microorganisms, and some heavy metal ions in water, and can effectively reduce the color of water.
Activated carbon filter, a filter device in a tank, the shell is generally stainless steel or glass fiber reinforced plastic, and the interior is filled with activated carbon. Activated carbon filters are used to filter free matter, microorganisms, and some heavy metal ions in water, and can effectively reduce the color of water.
The adsorption principle of activated carbon is to form a layer of balanced surface concentration on the surface of the particles, and then adsorb organic impurities into the activated carbon particles, and the adsorption effect at the initial stage is very high. But over time, the adsorption capacity of activated carbon will be weakened to varying degrees, and the adsorption effect will also decrease. If the water is cloudy and the organic content in the water is high, the activated carbon will quickly lose its filtering function. Therefore, activated carbon should be cleaned or replaced regularly. The size of the activated carbon particles also has an effect on the adsorption capacity. In general, the smaller the activated carbon particles, the larger the filter area. Granular activated carbon is not easy to flow due to particle formation, and impurities such as organic matter in water are not easy to block in the activated carbon filter layer. It has strong adsorption capacity and is easy to carry and replace.
The adsorption capacity of activated carbon is proportional to the contact time with water. The longer the contact time, the better the filtered water quality.
NOTE: The filtered water should flow out of the filter layer slowly. The new activated carbon should be washed clean before the first use, otherwise black water will flow out. The above is the working principle and specific application of activated carbon filter. As one of the important equipment in the raw water pretreatment system, the activated carbon filter ensures the quality of the supply water and can also be used for filtration after secondary treatment.
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