Working principle of activated carbon filter: The adsorption principle of activated carbon is: a layer of balanced surface concentration is formed on the surface of its particles. The size of the activated carbon particles also has an effect on 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 the best adsorption effect, but the powdered activated carbon is easy to flow into the water tank with the water, which is difficult to control and is rarely used. Granular activated carbon is not easy to flow due to the shape of the particles, 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 directly proportional to the contact time with water, the longer the contact time, the better the filtered water quality.
NOTE: 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. Before the activated carbon is loaded into the filter, a 2-3 cm thick sponge should be placed on the bottom and top to prevent the penetration of large particles of impurities such as algae. After 2-3 months of use, the activated carbon should be replaced if the filtering effect decreases. New activated carbon, the sponge layer should also be replaced regularly.
Activated carbon filter pressure vessel is a pressure vessel filled with coarse quartz sand cushion and high-quality activated carbon. A layer of balanced surface concentration is formed on the surface of activated carbon particles, and then organic matter impurities are adsorbed into the activated carbon particles, and the adsorption effect at the initial stage of use 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 quality in the aquarium is cloudy and the content of organic matter in the water is high, the activated carbon will soon lose its filtering function. Therefore, activated carbon should be cleaned or replaced regularly. Activated carbon filter features: 1. High efficiency: 24 hours continuous work, no need to stop backwashing.
2. Low operating cost: no backwash pump with high lift and large flow is required. 3. Low maintenance cost: It has no rotating parts except quartz sand filter material during operation, low failure rate and low maintenance cost. 4. Low one-time investment: no separate facilities such as coagulation tanks and clarification tanks are required, no backwash pumps, electric and pneumatic valves and other equipment are required, the project volume is small, and the one-time investment is low.
5. Small water head loss: single filter material and the filter material is cleaned in time, the water head loss is small, and the total head loss is ≤0.5m. 6. The requirements for influent water quality are loose: it can withstand the influent water quality of 150mg/L concentration SS for a long time, and can withstand the impact of 300mg/L SS concentration for a short time without changing the quality of effluent water. 7. The effluent water quality is stable and the filtering effect is good.
The filter material is cleaned in a timely manner, which can ensure high-quality and stable water output without periodic water quality fluctuations. 8. Easy to renovate and expand: the unit operation mode adopted can flexibly increase or delete the number of filters according to the change of water volume, which is easy to renovate and expand. 9. Small footprint and beautiful appearance: it integrates the traditional three-stage recycled water treatment process into one, saving about 70-80% of land; the appearance is more beautiful and compact.
It is worth noting that at the initial stage of using activated carbon (or at the beginning of operation after replacing activated carbon), a small amount of extremely fine powdered activated carbon may enter the reverse osmosis equipment system with the water flow, causing fouling of the flow channel of the reverse osmosis membrane and causing operating pressure. The increase, the decrease of the permeate flow and the increase of the pressure drop of the system, and this destructive effect is difficult to restore with conventional cleaning methods. Therefore, the activated carbon must be rinsed to remove fine powder before the filtered water can be sent to the subsequent RO system. Activated carbon filters are widely used in food, medicine, electronics, chemical industry, industrial wastewater and other industries.
1. It can meet the requirements of the hydraulic system for filtration accuracy, and can prevent certain impurities from entering the system; 2. The filter element should have sufficient strength and will not be damaged by pressure; 3. Large flow capacity and small pressure loss; 4. , Easy to clean and replace. Poolking is the best swimming pool equipment manufacturer and supplier in China. Poolking exists to provide the highest quality swimming pool equipment while offering competitive pricing..