| 摘要 |
The present invention relates to an anaerobic purification device for purification of influent, comprising: a reactor tank; inlet means for introducing influent into the tank; water collecting means for collecting purified water; a gas collecting system for collecting gas from the fluid contained in the reactor; a gas-liquid separation device; a riser for passing liquid into the separation device by gas lifted caused by gas collected in the gas collecting system; a downer for returning liquid and -sludge from the separation device into the lower tank section. According to the invention this device is characterized in that it is arranged to define, in the downer at the level of the liquid surface, a head pressure of at least about 1.4 m water column (about 0.14 bar). The invention also relates to a method for anaerobic purification device for purification of influent. |
