| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a biological treatment accelerator capable of reducing the production amount of sludge by stabilizing the treatment capacity of activated sludge, a biological treatment method of wastewater using it, and a biological treatment method for stably keeping the density of animalcules in a treatment method like a multistage activated sludge method using the predation action of animalcules. <P>SOLUTION: The biological treatment accelerator is adapted to wastewater containing a product originating from a soybean such as soybean milk, bean-curd refuse, etc. In multi-tank biological treatment using a first biological treatment tank 1 for biologically treating organic wastewater with bacteria and a second biological treatment tank 2 for treating treated water, which contains bacteria, from the first biological treatment tank 1 with activated sludge, the biological treatment accelerator is added to the second biological treatment tank 2. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
