| 摘要 |
PROBLEM TO BE SOLVED: To provide a wastewater treatment system with which an equipment cost is reduced and concentration of a pollutant is certainly reduced.SOLUTION: In a wastewater treatment system 1 provided with factory wastewater treatment equipment 2 to treat industrial wastewater including BOD and factory domestic wastewater treatment equipment 3 to treat domestic wastewater in a factory including nitrogen, the factory wastewater treatment equipment 2 includes an aeration part 13 to reduce BOD concentration, the factory domestic wastewater treatment equipment 3 includes nitrification means to conduct a nitrification reaction of the domestic wastewater in the factory, and the domestic wastewater in the factory subjected to the nitrification reaction and the industrial wastewater are mixed with each other on the upstream side including the aeration part 13. |
