Sewage disposal agent, sewage purifier, washing machine with purifier, and sewage purifying method

摘要

A polluted water purifier for collecting a pollutant present in polluted water by flocculating the pollutant with a flocculant has a mixer 5 for mixing the polluted water with the flocculant F and air, an agitator 18 for agitating the polluted water, containing the flocculant F and the air, that flows into a cylindrical agitation chamber 6 along the inner surface thereof by making the polluted water into a spiraling stream so that the flocks formed by the flocculant F hold bubbles, and a separator 10 and 19, connected to the agitator 18, for temporarily storing the polluted water and for separating the flocks holding the bubbles.