| 摘要 |
<p>PURPOSE: To obtain an anaerobic treating device capable of efficient anaerobic treatment by efficiently collecting the sludge floated up in an anaerobic reaction tank and crushing the sludge to restore its settling property. CONSTITUTION: The inside of a UASB-type anaerobic reaction tank 1 is separated by solid-gas separation membranes 8a and 8b into a solid-liq. separation part 9 on the upper inside, a gas collecting part 10 on the upper outside and a reaction part 11 having a sludge blanket 13 at the lower part. The sludge 32 floated up to the solid-liq. separation part 9 and/or the gas collecting part 10 is sucked by a crusher 16 with the switch part 17 opened upward in the vicinity of the liq. surface and crushed, and the crushed sludge is returned to the reaction part 11 due to its restored settling property.</p> |
