First of all, we must understand that powdered activated carbon can be divided into powdered activated carbon for water treatment, powdered activated carbon for sugar, powdered activated carbon for medicine, and industrial-grade powdered activated carbon. The granular activated carbon series includes coconut shell husk activated carbon and columnar activated carbon. According to its use, it can be divided into granular activated carbon for water treatment, granular activated carbon for air purification, granular activated carbon for gold refining, granular activated carbon for decolorization, granular activated carbon for catalyst support, and granular activated carbon for silver carrying. Then, the same powdered activated carbon and granular activated carbon that can be used for water treatment have different localities. Which one should we choose when selecting products, you will understand when you read the following.
There is a difference in the appearance of powdered activated carbon and granular activated carbon for water treatment. 65-95% of the powdered activated carbon can pass the 325 intent sieve (44㎡), and more than 90% can pass the 200 intent sieve. Its density is 0.36-074g / cm. between. In water treatment, powdered activated carbon and granular activated carbon each play an important role. Powdered activated carbon has been widely used to remove color, odor, taste and trace organic matter in water. The dosage is usually 2-15mg / L. The powdered activated carbon has a short adsorption cycle time, a simpler method, a lower cost, According to the pollution status of the water body, carbon strengths and other advantages can be replaced at any time, which makes its application in the water treatment industry at home and abroad continue to expand. The use of powdered activated carbon in foreign countries to remove organic matter, color and odor in water has a successful experience and good removal effect, and the powdered activated carbon equipment has been invested. The price is cheap, the adsorption speed is fast, and it is short-term and sudden water quality. Pollution adaptation can be strong. Granular activated carbon is used for advanced treatment of drinking water. It is usually used in conjunction with sand filters and is widely used in water plants. It is used for solvent recovery, organic gas adsorption, catalyst support, etc. The use of powdered carbon is relatively narrow, and it is usually used in the fields of decolorization, purification, and catalyst support.
The size of the activated carbon particles also affects the adsorption capacity. We all know that the smaller the activated carbon particles, the larger the filtration area. Powdered activated carbon has the largest total area and the best adsorption effect, but powdered activated carbon flows into the aquarium easily with water, which is difficult to control and is rarely used. The granular activated carbon is not easy to move due to the formation of particles, and impurities such as organic matter in water are not easy to block in the activated carbon filter layer. Its adsorption can be strong and it is easy to replace.
In general, both powdered activated carbon and granular activated carbon can be used for water treatment. In the end, the choice of using powdered charcoal or granular charcoal depends on the specific conditions such as the quality of the raw water and the status of the water plant.
