MUDDY WATER TREATMENT SYSTEM

To provide, in a muddy water treatment system for sucking muddy water, a tank configuration capable of maintaining negative pressure in a tank into which the muddy water is sucked, and thereby capable of continuously performing suction of the muddy water over a prolonged period of time.SOLUTION: Provided is a muddy water treatment system including a recovery tank into which muddy water is sucked at negative pressure. The recovery tank comprises: a tank body which is formed of a cylindrical side part, an upper surface part and a lower surface part, and has a lower opening connected to a negative pressure source and an upper opening into which the muddy water is sucked; a water separating member disposed between the upper opening and the lower opening inside the tank body; a spacer member which is disposed between the water separating member and the lower surface part, and forms a lower space under the water separating member; and a passage forming member disposed on the tank body. The passage forming member extends from the water separating member or a position under the water separating member to a position above the center of an upper space above the water separating member.SELECTED DRAWING: Figure 2 【課題】泥水を吸引するための泥水処理システムにおいて、泥水が吸引されるタンク内の負圧を維持することができ、これにより、泥水の吸引作業を長時間にわたって連続的に行うことができるタンク構成を提供する。【解決手段】泥水処理システムであって、負圧下で泥水が吸引される回収タンクを含み、前記回収タンクは、筒状の側部と、上面部と、下面部とにより形成され、負圧源に接続される下部開口と、泥水が吸引される上部開口と、を有するタンク本体と、前記タンク本体内で、前記上部開口と前記下部開口との間に配置される水分離部材と、前記水分離部材と前記下面部との間に配置され、前記水分離部材の下方に下部空間を形成するスペーサ部材と、前記タンク本体に設けられる流路形成部材と、を備え、前記流路形成部材は、前記水分離部材または前記水分離部材より下方の位置から、前記水分離部材の上方の上部空間において、中央より上方の位置まで延在する、泥水処理システム。【選択図】図２