摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an aeration device for a septic tank which enables simplification of assembly work and cost reduction while enabling the improvement of assembly accuracy, and additionally enables a reduction in the number of parts. <P>SOLUTION: The aeration device for a septic tank is provided with an aeration member 29 having aeration holes 28 for aeration in the septic tank, and a gas supply pipe connected by communication with the aeration member 29. The aeration member 29 is divided in the radial direction and split members 31 are installed, and the split members 31 are joined in the radial direction to be integrated with each other. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |