COMBINED TREATMENT SYSTEM

摘要

PROBLEM TO BE SOLVED: To realize a combined sewage treatment tank by effectively utilizing an existing single sewage treatment tank. SOLUTION: The combined sewage treatment tank is constituted by connecting a combined treatment system 20 having a biological filter chamber 22 to the single sewage treatment tank having anaerobic treatment chambers 12 and 13, a settling chamber 5 and a disinfection chamber 6. The treated water treated in the combined treatment system is returned to the disinfection chamber and is subjected to disinfection and sterilization.