earticle

영어

The objective of this study is determine the proper dosage of waste activated carbon as the conditioning agent for dewaterability improvement of water treatment sludge and its to investigated the applicability for sludge reduction. The water treatment sludge was collected from thickening tank of C water treatment plant in U city. Also, the activated carbon was used the waste activated carbon discharged after wastewater treatment of B company in U city. The average total solid content of waste activated carbon and water treatment sludge were 2.0%(1.8~2.2%) and 87.9%, respectively. The optimum dosage of waste activated carbon for dewaterability improvement of water treatment sludge(500mL) was 5g. At optimum condition, the SRF(specific resistance) and TTF(Time to filter) of conditioned sludge were 5.1×1013m/kg and 633sec, respectively. Consequently, the waste activated carbon can be a recyclable material as a conditioning agent to improve the dewaterability of water treatment sludge.