| 摘要 |
<p>PURPOSE:To remove residue from a system in a hygienic state by aerating sewage contg. foreign matter mixed with aerobic microorganisms in an aerating tank and removing the foreign matter in the aerated sewage with a residue removing unit. CONSTITUTION:Sewage contg. foreign matter is mixed with aerobic microorganisms and aerated in a first aerating tank 22a and the foreign matter in the aerated sewage is removed with a residue removing unit 10. The sewage is then treated with aerobic microorganisms in a second aerating tank 22b. The residue removed with the unit 10 can be removed from the system in a hygienic state.</p> |
