| 摘要 |
<p>PURPOSE: To obtain an immediate, continuous effect of restraining hindrance to solid-liquid separation by restraining bulking of activated sludge due to mold fungi and scumming of activated sludge due to ray fungi using small quantities of chemicals without damage to fungi except for mold fungi and ray fungi in activated sludge and damage to men and beasts. CONSTITUTION: Nonionic surface active agents and quaternary ammonium salt cationic surface active agents, and cationic high-molecular flocculants if required are added to an activated sludge processing system to restrain hindrance to solid-liquid separation of activated sludge such as bulking, scumming, etc.</p> |
