Oxidation ditch operation control method and oxidation ditch operation control apparatus

摘要

PPROBLEM TO BE SOLVED: To provide an operation control method of an oxidation ditch capable of enhancing the stabilization of the quality of water to be treated, and an operation control device of the oxidation ditch. PSOLUTION: In calculating the aeration time ASBn+1/SBof the (n+1)-th operation cycle by setting the period from the start of aeration to the resumption of the next aeration to one operation cycle, the inflow amount (q) of water to be treated flowing in a tank is measured in the n-th just-before operation cycle to set the aeration time ASBn+1/SBon the basis of the inflow amount (q) of the water to be treated. Accordingly, a suitable operation cycle reflecting the fluctuations in the inflow amount (q) of the water to be treated can be set. PCOPYRIGHT: (C)2006,JPO&NCIPI