| 摘要 |
<p>PURPOSE:To supply oxygen to the org. sewage in a treating tank without any power or with a small amt. of power if needed in the biological treatment of org. sewage. CONSTITUTION:At least a part of the wall of a treating tank 1 to be charged with org. sewage is formed with a hydrophobic porous membrane 2, and oxygen is permeated through the membrane 2 and introduced into a liq. mixture 4 to aerobically treat the liq. mixture.</p> |
