| 摘要 |
<p>A water treatment system comprising an anaerobic reactor (10) for decomposing organic pollutants in wastewater by the action of an anaerobic microorganism, a trickling-type aerobic reactor (12) packed with a filler to which microorganisms are to be attached, said trickling-type aerobic reactor being provided after the anaerobic reactor, for trickling water to dissolve oxygen in the atmosphere therein and thus supplying oxygen, and a membrane bio-reactor (13), said membrane bio-reactor being provided after the anaerobic reactor, equipped with a separation membrane for solid-liquid separation that is placed in a biological reaction tank, wherein, in treated water having been treated with the anaerobic reactor, a portion corresponding to the amount required as reclaimed water is treated with the membrane bio-reactor while the remainder is treated with the trickling-type aerobic reactor.</p> |
