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一、粒状活性炭滤池设计参数 1.滤率:粒状活性炭滤池的滤率可以采用和砂滤池或煤滤池同样的滤率。一般在重力式系统中采用的滤率为2加仑/英尺~2·分(滤速约5米/时);在压力式系统中可采用6加仑/英尺~2·分(滤速约15米/时)以上。 2.水与活性炭滤床的接触时间:按照活性炭总体积计算的比较充分的接触时间应是7.5分钟。由于活性炭颗粒约占一半空间,所以实际的接触时间是3.7分钟(只考虑活性炭之间间隙
I. Design parameters of granular activated carbon filter 1. Filtration rate: The filtration rate of granular activated carbon filter can be the same as that of sand filter or coal filter. Typical filtration rates in gravity systems are 2 gallons per foot to 2 minutes (filter speeds of about 5 meters per hour); 6 gallons per foot per minute in pressure systems (filter speed of about 15 meters) /h) Above. 2. Contact time of water and activated carbon filter bed: The sufficient contact time calculated based on the total volume of activated carbon should be 7.5 minutes. Because the activated carbon particles account for about half of the space, the actual contact time is 3.7 minutes (only consider the gap between activated carbon