한국환경과학회지 (Journal of Environmental Science International)
- 제2권4호
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- Pages.299-310
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- 1993
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- 1225-4517(pISSN)
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- 2287-3503(eISSN)
유출수 반송이 UASB 반응조 운전효율에 미치는 영향
Effects of effluent recycling on the operating performance of UASB reactor
초록
This study was aimed to evaluate the effects of effluent recycling on the UASB reactor performances at the various organic loading rates and influent substrate concentrations. The organic removal efficiency of the reactors operated with effluent recycle were above 85%. However, the efficiencies of the reactors operated without the recycle were below 40% even though the effort to increase the efficiencies was made by changing the influent substrate concentrations and the organic loading rates, and introducing the effluent recycle at the final stage of the experiment. It was realized that the certain amount of effluent recycling from the start-up stage in UASB reactors seemed to be necessary to provide the effective contact chances between the substrate and granular sludge for better performances of the UASB process.
키워드