| 摘要 |
PROBLEM TO BE SOLVED: To perform an intense treatment of a large amount of treated sewage subjected to treatment in a sewage treatment facility or the like, at a low cost. SOLUTION: The treatment using this equipment comprises: burying a water conduit 20 having a central conduit channel 21a and inclined conduit channels 21b, in treatment soil; covering the upper face of conduit 20 with a water- permeable sheet 24; placing a diffuser pipe(s) 23 on the underside of the water- permeable sheet 24; and supplying treated sewage subjected to treatment in a sewage treatment facility or the like, to the central conduit channel 21a, to allow the sewage to overflow the water conduit 20, to fill the treatment soil 11 with the sewage up to a water level L and to perform the advanced sewage treatment.
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