| 摘要 |
PROBLEM TO BE SOLVED: To provide a system for purifying an inside of a pipe conduit which can improve purification efficiency.SOLUTION: A system 100 for purifying an inside of a pipe conduit of this invention includes pipe conduits with a purification function 210, 220, ..., 240, and 250, treatment water storage parts A, ..., and D, and a feedback part 300. Microorganisms are held in the pipe conduits with the purification function 210, 220, ..., 240, and 250. The treatment water storage parts A, ..., and D are communicated with the pipe conduits with the purification function 210, 220, ..., 240, and 250. The feedback part 300 allows the treatment water in the storage part A to be fed back to the pipe conduits with the purification function 220, ..., and 240 on the upstream side.SELECTED DRAWING: Figure 2 |
