Being the device in order it dehydrates to concentrate the sludge dehydrator null sludge which

摘要

PPROBLEM TO BE SOLVED: To provide a sludge thickener which can control the treatment velocity and concentration ratio of sludge separately, can be stably operated for a long time, and is compact and excellent in maintainability. PSOLUTION: The sludge thickener is a device for dehydrating and concentrating sludge, and comprises a treatment tank 11 into which the sludge is fed, a dehydration part 12 installed in the bottom of the treatment tank 11 and dehydrating and concentrating the sludge put on its upper surface, and a discharge means for discharging the sludge put on the upper surface of the dehydration part 12 to the outside. A sludge receiving part that temporarily retains the sludge fed from a charging port 10a feeding the sludge into the treatment tank 11 and then supplies the retained sludge to the dehydration part 12 is installed between the charging port 10a and the dehydration part 12 in the treatment tank 11. As the sludge is fed to the dehydration part 12 after being temporarily retained in the sludge receiving part, it is not necessary that the amount of the fed sludge and the amount of the sludge discharged by the discharge means agree with each other. PCOPYRIGHT: (C)2006,JPO&NCIPI