Fig. 6: Process flow chart of the pilot scale CASP and PAC + UF process trains. | npj Clean Water

Fig. 6: Process flow chart of the pilot scale CASP and PAC + UF process trains.

From: Recirculation of powdered activated carbon improves the adsorption of organic micropollutants in membrane hybrid processes

Fig. 6: Process flow chart of the pilot scale CASP and PAC + UF process trains.

Treatment train 1 featured an inline-dosing process design, with no separate contact reactor. Contact of PAC and water occurred in the pipework between the dosing point and the membrane module. The membrane feed pump ensures proper mixing of PAC and water. Treatment train 2 was designed as a modified Ulm process. This process design featured a separate contact reactor and lamella clarifier unit to increase PAC contact time. The treatment trains both included a recirculation line to pump backwash water with partially loaded PAC into the upstream CASP stage (pink arrow). SP sampling point, TMP measuring point of trans membrane pressure, WQ measuring location of online quality parameters.

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