| 摘要 |
PURPOSE:To subject sludge to dewatering treatment by a method in which sludge is packed into an air-tight plastic bag having a filtering material, while the bag is pressed by means of water head, and water filtered through the filtering material from the sludge is discharged. CONSTITUTION:A valve 6 is opened, and as soon as muddy water is started to pack into a water-permeable sheet 4 through a suction pump pipe 10 on the barge side, water in a steel pipe 1 is drained by a water pump 11 on the steel pipe side. By this, muddy water in the barge 9 is packed into the water-permeable sheet 4. After the packing of the muddy water, the level of water in the steel pipe 1 is lowered by DELTAh from the sea surface by operating the water pump 11, whereupon the muddy water packed in the sheet 4 is gradually dewatered under a compressive force corresponding to the head DELTAh. |
