WASTE WATER TREATING EQUIPMENT

摘要

PURPOSE:To prevent the outflow of suspendable sludge and microoganism sticking media and to allow high-load and high-speed treatment by combining a three-phase fluidized bed type waste water treating device and a immersion filter bed type waste water treating device. CONSTITUTION:A three-phase fluidized bed water tank 7 housing granular carriers 6 is provided to the three-phase fluidized bed type waste water treating device 1 and an air diffusion port 8A is provided to the bottom thereof. A draft pipe 9 and a baffle plate 10 are provided above the air diffusion port 8A. A waste water supplying port 2A is provided lower than the baffle plate 10 and a treated water outflow port 4A is provided higher than the baffle plate 10. The immersion filter bed type waste water treating device 3 has an immession filter bed water tank 12 and an inside cylin der 14 forming a treated water pool 13 above this tank. An air diffusion port 15A is provided to the bottom of the water tank 12 and a filter medium layer 16 for stick ing microoganisms enclosing the part above the diffusion port and a communicating port 17 are provided. A treated water outflow port 18A is provided to the position higher than the top end of the filter medium layer 16. The treated water is discharged through an outflow pipe 18. The outflow of the suspendable sludge and microoganism sticking media is prevented in this way and the high-load operation and the high-speed high-efficiency treatment are enabled.