| 摘要 |
PROBLEM TO BE SOLVED: To unnecessitate a polymer, an iron chemical and lime, etc., and to make a sewage treating plant and a sewerage tank compact by charging sewage raw water into a cyclone for sewage with a pressurized pump, moving the charged sewage sewage to a primary waste water container, then separating the sewage with a centrifugal separator. SOLUTION: Household waste water, plant waste raw water, and waste water from the sewerage treating plant are fed with an underwater pump or the pressurized pump, etc., then the sewage is sucked into the cyclone. As soon as pressure of the sewerage is impressed on the cyclone, an air dis charge port of an air blower or a compressor, etc., is connected to the center of the cyclone, and air is forcedly blown into the cyclone. After the completion of the process, the discharged sewerage is moved to the primary discharge water container having an optional size, then the sewerage is separated with the centrifugal separator using a vacuum pump. Thus, the polymer, etc., are unnecessary and also the sewage treating plant and the sewerage tank are made compact.
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