| 摘要 |
The present invention relates to a wastewater treatment apparatus and for simultaneously and more effectively treating nitrogen and phosphorus in the wastewater which inflows into the apparatus, and a method for treating the water using the apparatus, wherein the wastewater treatment apparatus comprising a anoxic tank, an anaerobic tank, an oxic tank and a settling tank in serial and pipes for connecting them in serial comprises an inflow pipe for introducing waste waters into the anaerobic tank; a first internal circulation pipe for connecting the anaerobic tank and the anoxic tank and transferring a suspension in the anaerobic tank to the anoxic tank; a second internal circulation pipe for connecting the oxic tank and the anoxic tank and returning a suspension in the oxic tank to the anoxic tank; a returning sludge pipe for connecting the settling tank and the anoxic tank and returning a suspension in the settling tank to the anoxic tank; a treated water discharging pipe serving as a passage for discharging the treated water in the settling tank; and a sludge discharging pipe serving as a passage for discharging sludge in the settling tank. |
