| 摘要 |
<p>PURPOSE: To provide an anaerobic treatment device which can transfer in an anaerobic reactor, suspended sludge having been lifted up without using power by utilizing gas generated in the reactor so that the sludge can be crushed to restore its precipitating property, thereby to effect anaerobic treatment efficiently. CONSTITUTION: A reaction zone 11 is formed, in an anaerobic treatment reactor 1 of UASB system, to have a solid-liquid separation section 9 inside the upper section of the reactor, a gas collecting section 10 outside the upper section, and a sludge blanket 13 in the lower section, the sections being separated by solid-liquid separation members 8a, 8b, whereby the suspended sludge having been lifted up to the section 9 and/or the section 10 is taken out and sent into a suspended sludge takeout section 14, which sludge is then transferred to a crushing device 27 by a gas lift 16 utilizing gas captured by a gas trap 21, so that the suspended sludge is crushed to restore its precipitating property and returned to the reactor 1.</p> |
