DEVICE AND METHOD FOR DEHYDRATING SLUDGE

摘要

PROBLEM TO BE SOLVED: To provide a device and method for dehydrating sludge, which enables to smoothly restart the operation or the like. SOLUTION: Filter body lines 6 and 7 formed by mounting a plurality of a rotary filter body 601 or 701 formed by arraying many pieces of disks 20 and 21 in the direction of a rotary axis 8 to form an intercoupling line in parallel are arranged oppositely in 2 stages of upper and lower. The device for dehydrating sludge is constituted so as to be provided with a dehydration vessel 2 structured to transport the sludge while filtering and dehydrating and to discharge the dehydrated cake 18 by rotating the rotary filter bodies 601 and 701 and a washing means for the sludge stuck to the rotary filter bodies 601 and 701 is provided in the dehydration vessel 2 to perform a sludge washing process S before and/or after a dehydration process T.