| 摘要 |
<p>A method of treating an organic substance-containing liquid, including aerating a biological treatment liquid obtained by mixing an activated sludge and an organic substance-containing liquid, and subjecting the biological treatment liquid to a filtration separation with a filter material immersed in the biological treatment liquid to obtain a filtrate, wherein the biological treatment liquid contains inorganic particles at least immediately before the filtration separation, wherein a lower limit of the mixed liquor suspended solids in the biological treatment liquid is 35,000 mg/L, and an upper limit thereof is 130,000 mg/L. The method of treating an organic substance-containing liquid of the present invention exhibits an effect that two demands of improvement in treatment efficiency and maintenance of the improved treatment efficiency can be simultaneously met.</p> |
