METHOD FOR REMOVING NITROGEN AND PHOSPHORUS FROM WASTEWATER BY IMPROVEMENT OF REACTOR SHAPE AND RECYCLE METHOD OF CONVENTIONAL BIOLOGICAL NITROGEN AND PHOSPHORUS REMOVAL PROCESS AND COMBINATION WITH ANAEROBIC AMMONIUM OXIDATION PROCESS

摘要

Disclosed is a method for removing nitrogen and phosphorus from wastewater by improvement of a reactor shape and a recycle method of a conventional biological nitrogen and phosphorus removal process and a combination with an anaerobic ammonium oxidation (AMAMMOX) process, capable of economically and effectively removing nitrogen and phosphorus without separately injecting an organic material. According to one embodiment of the present invention, an apparatus for removing nutrient salts from wastewater comprises: an anaerobic tank receiving a part of wastewater and eluting phosphorus dissolved in the part of received wastewater; an aerobic tank inducing absorption of the phosphorus eluted in the anaerobic tank with a first microorganism and oxidizing ammonia nitrogen in the part of received wastewater into nitric acid type nitrogen; a non-oxygen tank receiving the remaining wastewater and using the received remaining wastewater to denitrify the nitric acid type nitrogen oxidized in the aerobic tank; a solid-liquid separation unit separating microorganism absorbing phosphorus from the wastewater having passed through the non-oxygen tank; a nitrozation tank oxidizing a part of the ammonia nitrogen included in the wastewater having passed through the solid-liquid separation unit into nitrite nitrogen; and an anaerobic ammonium oxidation tank using a second microorganism to denitrify the nitrite nitrogen oxidized in the nitrozation tank and the ammonia nitrogen not oxidized in the nitrozation tank.;COPYRIGHT KIPO 2020