WASTEWATER TREATMENT METHOD AND JIG FOR SUPPLYING COAGULANT

• Main Author: TOYODA MITSUHIRO
• Format: Patent
• Language: English; Japanese
• Published: 10.02.2022
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

To provide a wastewater treatment method that enables simple and low-cost oil-water separation in an oil-water separation tank without the need for modification of the tank.SOLUTION: There is provided a wastewater treatment method using a wastewater treatment apparatus equipped with an oil-water separation tank, which is characterized in that a coagulant is supplied to wastewater stored in the oil-water separation tank from below the surface of the wastewater. A coagulant supplying jig which has a container with a lid that can be freely opened/closed and a handle with one end in the longitudinal direction fixed to the container is used preferably for (i) moving the container, in a state of storing coagulant therein with the lid closed, into the wastewater in the oil-water separation tank and then (ii) opening the lid to supply the coagulant.SELECTED DRAWING: None 【解決課題】油水分離槽の改修等を必要とすることなく、油水分離槽における油水分離を簡便かつ低コストに行い得る排水処理方法を提供する。【解決手段】油水分離槽を備えた排水処理装置において、油水分離槽内に取り込んだ排水に対し排水面下の水中から凝集剤を供給することを特徴とする排水処理方法であり、開閉自在に設けられた蓋部を有する容器と当該容器に長手方向の一端が固定された柄とを有する凝集剤供給用治具を用い、前記容器内に凝集剤を収容し前記蓋部を閉じた状態で前記油水分離槽内に取り込んだ排水中に前記凝集剤供給用治具の容器を移動させた後、前記蓋部を開いて凝集剤を供給することが好ましい。【選択図】なし