| abstract |
"Biological treatment method" It is an object of the present invention to provide a biological treatment method for biologically treating the phenol and thiocyanate-containing water in question and the like, which enhances the quality of the treated water while suppressing a reduction in the water efficiency. treatment. As a means of achieving the above objective, the present invention relates to a biological treatment method including introducing the subject water containing a codon component, wherein the codon component is at least one of: phenol and thiocyanate , in a bacterial slurry containing biological treatment tank capable of decomposing the cod component thereafter, therefore biologically treating the cod component with the bacterium, in which, prior to introducing the water in question into the biological treatment tank, a The step of counting the total number of bacteria contained in the slurry is carried out such that the amount of codon component loaded on a single bacterium per unit of time can be controlled within a predetermined rate. |