| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a sludge weight reduction method which has a high effect of inhibiting generation of sludge, and can be introduced to an existing wastewater treatment facility at a low cost. <P>SOLUTION: To a system of an activated sludge group (B) generating surplus sludge, an activated sludge group (A) having an autolysis rate higher than the activated sludge group (B) is added. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
