하수중의 질소.인 제거를 위한 A2/O공정의 적용

• 영문명: Application of A2/O Process for Removal of Nitrogen and Phosphorus in Sewage
• 발행기관: 한국환경보건학회
• 저자명: 안철우 박진식 문추연
• 간행물 정보: 『1. 한국환경보건학회지』제26권 제4호, 9~14쪽, 전체 6쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 2000.12.30

영문 초록

In this study, the removal efficiencies of organics, nitrogens and phosphorus from municipal wastewater using A2/O process were investigated. BO D5 removal efficiencies were indicated 95% and 94% with HRT of 12 hr and 10 hr, respectively. CO DCr average removal efficiency and concentration of effluent were indicated 87% and 34mg/ℓ. SS average removal efficiency and concentration of effluent were indicated 93% and 4~17mg/ℓ. T-N removal efficiency and concentration of effluent were shown as 60~80% and below 15mg/ℓ. In aerobic basin, removal efficiency of NH4-N was shown over 97% with NH4-N volume load 0.16kg NH4-N/㎥.d and in anoxic basin, denitrification efficiency was indicated over 80% with return sludge rate 0.5Q and internal recirculation rate 2.5Q. Removal efficiency and effluent concentration of phosphorus were shown over 80% and below 2 mg/ℓ with return sludge rate 0.5Q.Q.

키워드

A2/O Process Nitrogen Phosphorus Municipal wastewater