| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method and program for estimating microorganism activity which can be easily operated and managed and can efficiently perform a biological treatment and to provide a biological treatment method using the same, and a computer readable recording medium recorded with this program. SOLUTION: In the method of estimating the microorganism activity state in a biological treatment vessel 2 of a complete mixing type, a substrate concentration Sin is measured, the substrate concentration S in treated wastewater is further measured, (dS/dt)c is calculated from (dS/dt)c=(F/V)(Sin -S) (V is the volume of the biological treatment vessel 2, (dS/dt)c is a microorganism activity parameter) in a stationary state in accordance with Sin and S, S' is calculated from S'=[(F/V).Sin +(dS/dt)c-A.exp(F.t/V)]/(F/V) (A is an integration constant) in a non-stationary state, (dS/dt)c is charged until this S' coincides with the actually measured value S of the substrate concentration, and (dS/dt)c is calculated when S coincides with the value.</p> |
