| 摘要 |
PURPOSE:To economically perform can washing, by storing waste water after the car washing in a pit and then separately removing impurities of detergent, wax, etc. in the waste water through a waste water purifying device to obtain pure water thus reusing the water. CONSTITUTION:A car washing machine is operated to accumulate a large amount of washing water containing detergent and aqueous wax in a pit P, and then a crude water pump 11 operates to pump up the water to a waste water purifier C through a filter 9 and suction pipe 10. The waste water delivered from the pump 11 is forcibly fed to a jet pipe 22 of a waste water injection device S, when air is sucked by an ejector 25 into a feed in pipe 24 from an air introducing pipe 27. In this way, the waste water jetted into an electrolytic cell 18 rises with bubbles in a gap between both positive and negative electrode plates 191, 192, during this time impurities of detergent, wax, etc. can be separately removed. Then the waste water overflows in a filtrating chamber 16 to flow in through a filter material 39 and is filtered and then stored in a pure water tank T. |
