The filtration principle of water purification activated carbon
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Posted by Carrie Ge - Filed in Arts & Culture - 915 views
Water purification activated carbon has the advantages of prosperous pore structure, high strength, low impurity content, proper granularity, low resistance and easy regeneration. activated carbon granular It has a good effect on water purification. It can not only remove peculiar smells and improve water purity. Do you know the filtration principle of activated carbon for water purification?
It is mainly used for filling, dechlorination, oil-reducing purification of urban drinking water, pure water, distilled water, ultra-pure water and other production equipment, as well as deep purification treatment of various industrial sewage.
The adsorption principle of activated carbon for water purification is to form a layer of balanced surface concentration on the surface of its particles, and then adsorb organic impurities into the activated carbon particles. The initial adsorption effect is very high. But over time, the adsorption capacity of activated carbon for water purification will be weakened to varying degrees, and the adsorption will also decline. Therefore, water purification activated carbon should be cleaned or replaced regularly.
The ability of adsorption is definitely related to the level of water temperature and water quality. The higher the water temperature, the stronger the adsorption capacity of activated carbon for water purification. If the water temperature is higher than 30°C, the adsorption can reach the limit, and it may gradually decrease. When the water quality is acidic, the adsorption capacity of water purification activated carbon for anionic substances is relatively weakened; when the water quality is alkaline, the adsorption capacity of water purification activated carbon for cationic substances is weakened. Therefore, the pH of water quality is unstable, which will also affect the adsorption capacity of activated carbon for water purification.
The size of activated carbon particles also affects the adsorption capacity. Generally speaking, the smaller the activated carbon particles, the larger the filtration area. Therefore, the powdered activated carbon has the largest total area and has good adsorption effect, but the powdered activated carbon can easily flow into the aquarium with water, which is difficult to manipulate and is rarely used. Granular activated carbon is not easy to move due to particle formation, and impurities such as organic matter in the water are not easy to block in the activated carbon filter layer. It has strong adsorption ability and is easy to replace.
The adsorption capacity of activated carbon for water purification is directly proportional to the time it touches the water. The longer the touch time, the better the filtered water quality. Before the activated carbon is loaded into the filter, a sponge of 2 to 3 cm thick should be spread on the bottom and top of the filter to prevent the penetration of large particles such as algae. After using the activated carbon for water purification for 2 to 3 months, if the filtering effect decreases New activated carbon should be replaced, and the sponge layer should be replaced regularly.wyactivatedcarbon.com