METHOD FOR CONTROLLING RAPID STIRRER, AND RAPID STIRRER

摘要

Provided is a rapid stirrer 10 for stirring sludge and a coagulant using a stirring blade 17 within a tank, wherein the speed of the stirring blade 17 is increased at a set rate as the charged amount of sludge increases, the speed of the stirring blade 17 is reduced at a set rate as the charged amount of sludge decreases, and aggregated floc having a fixed floc diameter is stably produced even when there is a change in the operating conditions under which the charged amount of sludge increases and decreases.