| 摘要 |
PROBLEM TO BE SOLVED: To provide a system for recovering sludge capable of recovering the sludge at a high recovery rate without requiring a heavy equipment cost due to conventional large-scale equipment, with equipment saving a labor and having a low cost, and also with few labors and a small maintenance cost; directly separating a clean filtrate from the sludge; and reducing a load of drainage treatment facilities without providing cloth washing drainage. SOLUTION: Apparatuses 30A and 30B for recovering the sludge comprise a filter cloth 31 formed of a nonwoven fabric using a coconut husk fiber, a main body part 32 to which the filter cloth 31 is detachably attached, a sludge accumulation part 33 to be formed inside the cloth 31 attached to the main body part 32, a sludge injection part 34 for injecting sludge water into the sludge accumulation part 33 and a filtrate discharge part 35 for discharging the filtrate separated from the sludge water through the cloth 31. A filtering process by gravitation action and a dewatering process for leaving standing to dewater are alternately switched using the apparatuses 30A and 30B. COPYRIGHT: (C)2006,JPO&NCIPI
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