Browse > Article

Oxygen Transfer Efficiencies of A Single Spiral Roll Aeration System by the Off-gas Method  

Park, Bo Hwa (School of Civil and Environmental Engineering, Yonsei University)
Ko, Kwang Baik (School of Civil and Environmental Engineering, Yonsei University)
Park, Jae Han (School of Civil and Environmental Engineering, Yonsei University)
Lim, Se Ho (School of Civil and Environmental Engineering, Yonsei University)
Shin, Dong Rok (Environmental Department EcoOne Corp.)
Yun, Hye Jung (School of Civil and Environmental Engineering, Yonsei University)
Lee, Ji Young (School of Civil and Environmental Engineering, Yonsei University)
Moon, Tae Hoon (School of Civil and Environmental Engineering, Yonsei University)
Publication Information
Journal of Korean Society on Water Environment / v.22, no.3, 2006 , pp. 534-539 More about this Journal
Abstract
The supply of oxygen for aeration is the largest energy consumer at activated sludge wastewater treatment plants. Replacement of less efficient aeration systems with fine pore aeration devices can save up to 50 percent of aeration energy costs. The purpose of this study was the diagnosis and evaluation of a domestic wastewater aeration system by the off-gas method which had been studied by US EPA and ASCE. For this study, an off-gas analyzer and its hood were made to collect off-gas. Also, a vacuum pump was connected to the analyzer to make suction of off-gas. Experiments were conducted at a domestic activated sludge wastewater treatment plant which had a single spiral roll aeration system installed with P.E tube diffuser. Data on OTE(f), SOTE(pw), OUR, and air flow rate were obtained from these experiments. In case of replacing an aeration system, it is recommended that it should be replaced with perforated membrane disc or ceramic disc fine bubble diffusers installed in a full floor coverage or grid pattern.
Keywords
Aeration system; Off-gas analyzer; OTE; OUR; SOTE;
Citations & Related Records
연도 인용수 순위
  • Reference
1 고광백, 정승균, Off-gas Analyzer를 이용한 하수처리장 포기 시스템 산소전달 효율의 진단 및 평가, 기술기사, Civil Engineering 토목, 대한토목학회지, 49(6), pp. 56-61 (2001)
2 Redmon, D. T., Boyle, W. C. and Ewing, L., Oxygen Transfer Efficiency Measurements in Mixed Liquor Using Off-Gas Techniques, Journal of the water Pollution Control Federation, 55, pp. 1338-1347 (1983)
3 Hook, R. L., Mierzynski, B. J., Robson, S. and Sanvido, J. A., A Full-Scale Side-by-side In-waste Comparison of Oxygen Transfer Efficiency for Fine Bubble and Coarse Bubble Systems, the Water Environment Federation Annual Conference (1992)
4 김철웅, 고광백, 정승균, 박보화, Off-gas Analyzer를 이용한 하수처리장 심층포기시스템 산소 전달효율의 진단 및 평가, 2001년도 대한환경공학회 추계학술발표회 논문초록집(I), 대한환경공학회, pp. 123-124 (2001)
5 EPA/ASCE 625/1-89/023, Design Manual-Fine Pore Aeration Systems, U. S Environmental Protection Agency (1989)
6 박보화, 고광백, 김철웅, Off-gas Analyzer를 이용한 하수처리장 단일선회류 방식 포기시스템 산소 전달효율의 진단 및 평가, 대한토목학회 창립 50주년 기념 2001년 학술발표회 논문집, 대한토목학회, pp. 56-61 (2001)
7 Daugherty, J., Vik, T. E. and Redmon, D. T., Aeration System Retrofit Design Optimization Procedure, Central States Water Environment Federaion Conference (1995)
8 Stenstrom, M. K. and Redmon, D. T., Oxygen Transfer Performance of Fine Pore Aeration in ASBs - A Full Scale Review, TAPPI International Environmental Conference (1997).
9 American Society of Civil Engineers, Standard Guidelines for In-Process Oxygen Transfer Testing, ASCE- 18-96, pp. 9-40 (1996)
10 Gillot, S. and Heduit, A., Effect of Air Flow Rate on Oxygen Transfer in an Oxidation Ditch Equipped with Fine Bubble Diffusers and Slow Speed Mixers, Water Research, 34, pp. 1756-1762 (2000)   DOI   ScienceOn
11 Mark, J., Wilson, T. E., Boyle, W. C. and Redmon, D. T., Optimizing Step Feed Aeration Design Using Offgas Testing, 70th Annual WEF Conference (1997)