SEWAGE TREATMENT APPARATUS USING PILES AND CONSTRUCTING METHOD OF BUILDING

摘要

PROBLEM TO BE SOLVED: To provide a sewage treating apparatus using piles in which hollow piles supporting the foundation of a building and an aeration tank are used in common to simplify the structure and the piles capable of preventing the flow-out of a carrier easily is used and to provide a constructing method of the building using the piles which allows the construction of the building while carrying out modification of contaminated soil. SOLUTION: The sewage treatment apparatus using the piles has the hollow piles 4 having a lower end part provided with a blocking member 8 at the lower end part and buried in the underground and an upper part fixed to the foundation 3 of the building 2 and having strength necessary to support the foundation 3 and a flow passage forming member 5 provided inside the piles 4 and provided with a descending passage for making the sewage to flow-in from the upper part and an ascending passage for discharging cleaned water from the upper part and a carrier 13 arranged to be fixed to hold microorganism inside and for cleaning the flowing sewage is positioned in the ascending passage.