修正A/O-生物膜시스템을 利用한 N, P 同時除去

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The rapid development of human activity has resulted in large amounts of nutrients flowing from wastewater into rivers and lakes. Consequently, the water environment has deteriorated. To improve water quality, it is very important to remove nutrients such as nitrogen and phosphorus from wastewater. In this study, for solving these problems, the simultaneous removal of N and P of wastewater using modified A/O-Biofilm process with media coated microorganism as support carrier in pilot plant was investigated. The findings are as follows:

1. The average removal efficiency of BOD was 90.54%. The average concentration of SS in effluent was ranged from 7.00 to 19.00?r/L.

2. The average removal efficiency of T-N in plant was 60.71%. In the case of average specific efficiencies of nitrification and denitrification, they were 72.14 and 97.5?rN/gMLVSS․day, respectively.

3. The average removal efficiency of T-P in pilot plant was 72.76%. In the case of PO4-P, it was 66.4%. The consumption of T-P in the oxic area were 32.42?rP/gMLVSS․day. Especially, about 62.8% of T-P was removed in the oxic area ?T.

4. The average removal efficiencies of SS, BOD and T-P in the modified A/O-Biofilm process were similar to those of the conventional A/O process. However, in the case of COD and T-N, they were increased by about 7.4 % and 24.3 %, respectively.
Alternative Title
Simultaneous Removal of Nitrogen and Phosphorus Using Modified A/O-Biofilm process
Alternative Author(s)
Shin Jae Hyung
조선대학교 대학원 환경공학과
일반대학원 환경공학과
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Table Of Contents
I. 서론 1

II. 이론적 배경 3
A. 생물막 공법 3
1. 생물막법의 이론 3
a. 용해성 기질의 이동과 대사반응 4
b. 기질과 반응산물의 이동 8
(1) 속도제한기질 8
(2) 유기물 산화, 질산화 및 탈질반응의 상호관계 9
2. 생물막법의 연구동향 10
B. 수정A/O-생물막시스템 11
1. 장치구성 11
2. 미생물 담체 12
3. 오염물질 제거원리 14
(1) 유기물 14
(2) 질소 14
(3) 인 15

III. 실험 및 분석방법 16
A. Pilot 실험장치의 운전방법 16
B. 분석 방법 17

IV. 결과 및 고찰 19
A. 유입수의 수질 19
B. MLSS 및 MLVSS농도 20
C. 유기물 제거 22
D. SS 제거 23
E. 질소 제거 24
F. 인 제거 29
G. 수정A/O-생물막시스템과 A/O시스템의 비교 32

V. 결 론 33

참 고 문 헌 34
신재형. (2009). 修正A/O-生物膜시스템을 利用한 N, P 同時除去.
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