Activated carbon is made by chemical or physical activation of carbon-containing substances such as wood, coal, and fruit shells (cores).It has a lot of micropores and huge surface area, it has strong physical adsorption ability and can effectively adsorb organic pollutants in water. The residual chlorine in the effluent of the activated carbon filter is ≤ 0.1ppm, and the SDI is ≤ 4.
The design operation time of the system is 24 hours, and then the activated carbon filter should be backwashed; and the backwashing cycle should be adjusted according to different seasons, changes in water quality, etc., to ensure that the effluent water quality SDI is ≤ 4. Backwashing Byte Flow Control backwashing is about 8.0L/m2 · S, so that the activated carbon is not washed away.
