| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an operation control system for a sewage treatment facility which is capable of automatically controlling the operation to optimum operation conditions. SOLUTION: This system is equipped with pattern memory means 13 for storing a plurality of the operation patterns relating to the setting of the aeration time and stirring time in an aeration stirring vessel 40, a calendar timer 12 indicating the day of the week, pattern selecting means 11 for reading out the operation patterns meeting the day of the week indicated by the calendar timer 12 among the operation patterns stored in the pattern memory means 13 and aeration stirring control means 10 for controlling the intermittent operations of the aeration stirring vessel 40 according to the operation patterns read out by the pattern selecting means 11, by which the automatic control of the operation to the optimum operation conditions is made possible even in areas where the outflow rate of the sewage varies with the day of the week. There is no need for periodic rounding by workers like heretofore and unattended operation is possible and the operating cost is drastically reduced.</p> |
