How does Sphaerotilus interfere with an activated sludge system
A)by coating rocks with a slimy film and decomposing organic matter
B)by removing flocculating substances
C)by proliferating and allowing floating matter to carry contaminants into sewage effluent
D)by converting nitrates to nitrogen gas and blocking the nitrogen stripping tank

Question

Quizplus · Accepted Answer

Sphaerotilus can interfere with an activated sludge system by proliferating excessively, which can lead to the formation of a bulky mass that traps air or gas. This can cause the sludge to float, allowing floating matter to carry contaminants into the sewage effluent, rather than settling as it should for proper treatment.

How Does Sphaerotilus Interfere with an Activated Sludge System