| 摘要 |
<p>PROBLEM TO BE SOLVED: To easily destroy algae in water to be treated to hardly generate clogging due to the algae in a treating layer having a carrier of microorganisms in a post stage by fluidizing particles in a fluidized bed to generate collision and contact of the particles with each other. SOLUTION: The water to be treated is sent to the fluidized bed 1 provided with many particles 22 to change the algae to have a property easily decomposable by the microorganisms and the algae is destroyed with the particles 22 in the fluidized bed 1. Next, the water to be treated, which contains the crushed algae, is passed through char coal 28 to be the carrier of plural microorganisms to be further purified and the purification performance for the water to be treated, which has the algae, is improved by performing the combined purification.</p> |
