| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a sewage treatment equipment capable of preventing a filtration membrane device from being damaged by electrode fragments or products generated by electrolysis. SOLUTION: This sewage treatment equipment P1 is provided with an activated sludge vessel 1, a filtration membrane device 2, an electrolytic tank 3, plural sets of electrodes 4 and 5, a DC power source (not shown in the Figure) and an air diffuser pipe 6, wherein the electrolytic tank 3 and the activated sludge vessel 1 are placed in series, that is, on a line connecting the upstream side and the downstream side in a sewage treatment stage to each other, so hat the electrolytic tank 3 and the activated sludge vessel 1 are positioned on the upstream side and the downstream side, respectively, and connected to each other with a connecting pipe 14, the electrolytic tank 3 has a tank body section 31 and a solid storage section 32 which is placed right below the tank body section 31 and joined to the tank body section 31, and similarly, the activated sludge vessel 1 has a vessel body section 21 and a solid storage section 22 which is placed right below the vessel body section 21 and joined to the vessel body section 21.</p> |
