| 摘要 |
<p>PURPOSE:To solubilize a suspensible org. substance, by providing an area where the suspensible org. substance is stagnated to the lower part of a bioreactor and recirculating anaerobic bacteria to said area by a pump. CONSTITUTION:Waste water containing a suspensible org. substance is introduced into an anaerobic bioreactor from a waste water inflow pipe 2 and the suspensible substance in waste water is stagnated in a barrier plate arranging area by barrier plates 3, 3 provided to the lower part of the blanket zone 5 of the bioreactor 1. Next, anaerobic bacteria are circulated to a waste water inflow end part from the area where the concn. of anaerobic bacteria is high located above the blanket part by a pump 4 and the contact of the stagnated suspensible org. substance with anaerobic bacteria and fluidization are promoted. By this method, the short-circuit of the org. substance is prevented and the decomposition thereof can be sufficiently performed.</p> |
