| 摘要 |
<p>PURPOSE:To stabilize the electric energy to be generated and to stabilize the utilization of electric power and waste heat on account of such stabilization by controlling the amt. of the activated sludge existing in an activated sludge process in such a way that the electric energy to be generated by gas attains a preset value. CONSTITUTION:A treating system for water and sewage is constituted of an aerating tank 10, an air diffuser 11, a final settling basin 12, a mechanical thickener 13 for excess sludge, an information processing unit 14 for the water treating process, a control device 15 relating to the total amt. of activated sludge, a calculator 16 for information on driving powder, a setter 17 for power generating quantity, a manual setter 18 relating to the total amt. of sludge and a blower 19. The stabilization of the electric energy to be generated by digester gas is accomplished by adjusting the set value for the method of controlling the amt. of the sludge in the activated sludge process according to the difference between the predetermined electric energy to be generated and the present electric energy to be generated.</p> |
