SEDIMENT DREDGING FLOCCULATION TREATMENT SYSTEM AND CONSTRUCTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a sediment dredging flocculation treatment system that dredges a floating mud layer and a deposit surface layer by using a pump without disrupting a deposit and generating turbidity with the work, efficiently performing solid-liquid separation treatment of muddy water generated in large quantities to the dredging sediment, and enabling re-use or land temporary storage of the enriched flocculated sediment containing organic matter.;SOLUTION: A sediment suction dredging device A (submersible pump with breaker) mounted in a back hoe C is operated by the positional information of GPS and the water depth information of the ultrasonic wave depth gauge, and the suction removal of the floating mud layer is managed along with the thin layer dredging. The muddy water generated in large quantities is efficiently treated by the solid-liquid separation treatment using a high-performance mineral hydrophobicity flocculating agent and a sediment flocculation precipitation separation device M of a voluntary design. The coagulum concentrated by the solid-liquid separation is charged in a receiving bag mounted with a filtration inner bag having a filtering function, and furthermore the decrease of capacity by filtration is promoted. A low-cost device and a processing technology are provided which are constituted of the thin layer dredging, the flocculation treatment and solid-liquid separation, and the natural dewatering in the receiving bag.;COPYRIGHT: (C)2016,JPO&INPIT