| 摘要 |
<p>PURPOSE:To liberate actinomyces, which is a cause of bulking from activated sludge, by adding a water-soluble cationic polymer prepd. by the reaction of dialkylamine and occasionally ammonia with epihalohydrin to waste water contg. activated sludge. CONSTITUTION:0.05-25pts.wt. (basing on 100pts.wt. dry solid in activate sludge) of a water-soluble cationic polymer prepd. by the reaction of dialkylamine and occasionally ammonia (<= equimolar amt. to dialkylamine) with epihalohydrin is added to activated sludge or waste water contg. said sludge. By this method, actinomyces causing foam generation, scum generation and bulking in the waste water after precipitating activated sludge is liberated from the activated sludge. As the result, generation of foam and scum and occurrence of bulking in the activated sludge in an aeration tank or in the treated water after precipitating the activated sludge, caused by the actinomyces, is prevented specifically. Moreover, the increase of SVI (sludge volume index) of activated sludge is retarded in a short time.</p> |
