| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a contaminated water purifying device capable of efficiently separating a floating sludge such as floating oil from the contaminated water the contaminated water. SOLUTION: In the contaminated water purifying device comprising a separation tank 4 in which sewage is obtained by separating a floating oil component from oily contaminated water 80 and a septic tank for purifying the sewage, the separation tank 4 has a float recovering device 41 for recovering the floating oil component. The float recovering device 41 comprises a floating part floating on the surface of the oily contaminated water 80 and generating buoyancy, a discharge pipe 1 for recovering and discharging the floating oil component, a fixing member 2 for fixing the discharge pipe 1 to the floating part and a position adjusting means 410 for adjusting the position of a recovering port 10 so that the recovering port 10 of the discharge pipe 1 may be opened into an oil component concentrated layer 81.</p> |
