| 摘要 |
<p>PROBLEM TO BE SOLVED: To simplify an installation work for a blowoff part for blowing air for aeration into waste water by providing the blowoff part for blowing the air for aeration into the waste water in a waste water tank for cleaning the waste water by utilizing a decomposition work of aerobic microorganisms, being constituted the blowoff part so as to enable to throw the blowoff part in the waste water and also providing a weight on the blowoff part. SOLUTION: Microorganisms are activated by being separated aerobic microorganisms containing a nutriment from a microorganism chemical, when the microorganism chemical is added into the water in a water tank 1. Here the water containing the activated microorganisms is fed to a grease trap (water delivery tank) 10 partitioned into three treating tanks 10a-10c via a feed pipe 11. At this time, an air introduction pipe 20 is connected in the mid-way of the base pipe 14 of a feed pipe 11, and the water flowing in the feed pipe 11 by driving a air pump 22 is forcedly blown off from the blowoff part 17 together with air. The blowoff part 17 is simply installed in the grease trap 10 by an empty weight by attaching a plate-like weight on the bottom of the blowoff part.</p> |
