AIR-LIFT PUMP DEVICE AND AQUATIC CONTAMINATION COMPONENT REMOVING METHOD

• Main Authors: MORISAWA TOMOHIRO, IZUMI SHINYA
• Format: Patent
• Language: English; Japanese
• Published: 23.06.2016
• Subjects: BLASTING; CHEMISTRY; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BYUSING INERTIA OF FLUID TO BE PUMPED; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; SIPHONS; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE; WEAPONS

PROBLEM TO BE SOLVED: To provide an air-lift pump device and an aquatic contamination component removing method capable of efficiently removing an aquatic contamination component by atomizing respective air flows per injection nozzle injected into a riser pipe of the air-lift pump device.SOLUTION: High-pressure air A is injected, through injection nozzles 7, into a lower edge section of a riser pipe 2 which is installed in a vertically submerged state. The high-pressure air A is supplied to a vertical discharge passage 5 formed inside the riser pipe 2 through a porous filter 6 arranged inside the riser pipe 2 so that the air A is atomized. An aquatic contamination component D is removed in a manner that moves the same upward from the lower edge of the riser pipe 2 through the discharge passage 5 due to buoyancy of fine bubbles B, generated through atomization, associated with expansion of the fine bubbles B.SELECTED DRAWING: Figure 2 【課題】エアリフトポンプ装置のライザー管内に噴射した噴射ノズル１本あたりのエアをより細分化することにより、水中汚濁成分を効率的に除去することができるエアリフトポンプ装置および水中汚濁成分の除去方法を提供する。【解決手段】水中に立設状態に配置されるライザー管２の下端部に、噴射ノズル７から高圧のエアＡを噴射し、このエアＡをライザー管２の内部に配置された多孔フィルタ６を通じて、ライザー管２の内部に形成された上下に連通する排出路５に供給して、エアＡを細分化させ、この細分化によって生じる微小なエアバブルＢの膨張を伴う浮力により、ライザー管２の下端部から排出路５を通じて水中の汚濁成分Ｄを上方移動させて除去する。【選択図】図２