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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.12
- 수록면
- 231 - 236 (6page)
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초록· 키워드
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Biological nitrogen removal, using a continuous flow packed-bed reactor (CPBR) in a consecutive nitrification and denitrification process, was evaluated. An apparent decline in the nitrification efficiency coincided with the steady increase in NH₄ +-N load. Sustained nitrification efficiency was found to be higher at longer empty bed contact times (EBCTs). The relationship between the rate of alkalinity consumption and NH₄ +-N utilization ratio followed zero-order reaction kinetics. The heterotrophic denitrification rate at a carbon-to-nitrogen (C/N) ratio of >4 was found to be >74%. This rate was higher by a factor of 8.5 or 8.9 for NO₃ --N/volatile solids (VS)/day or NO₃ - -N/m3 ceramic media/day, respectively, relative to the rates measured at a C/N ratio of 1.1. Autotrophic denitrification efficiencies were 80-90%. It corresponds to an average denitrification rate of 0.96 kg NO₃ --N/m3 ceramic media/day and a relevant average denitrification rate of 0.28 g NO₃ --N/g VS/day, were also obtained. Results presented here also constitute the usability of an innovative porous sulfur ceramic media. This enhanced the dissolution rate of elemental sulfur via a higher contact surface area.
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참고문헌 (37)
참고문헌 신청
1. [학술지(정기간행물)] - Kim Hs / 2010 / Effects of integrated fixed film activated sludge media on activated sludge settling in biological nutrient removal systems / Water Res 44 : 1553 ~ 1561
2. [학술지(정기간행물)] - Kim D / 2009 / Long term operation of pilot-scale biological nutrient removal process in treating municipal wastewater / BIORESOURCE TECHNOLOGY 100 : 3180 ~ 3184
3. [학술지(정기간행물)] - Rajesh Banu J / 2009 / Nutrient removal in an A2O-MBR reactor with sludge reduction / Bioresour. Technol 100 : 3820 ~ 3824
4. [학술지(정기간행물)] - Fu Z / 2008 / Control of COD/N ratio for nutrient removal in a modified membrane bioreactor (MBR) treating high strength wastewater / Bioresour. Technol 100 : 136 ~ 141
5. [학술지(정기간행물)] - Ma Y / 2009 / Improving nutrient removal of the AAO process by an influent bypass flow by denitrifying phosphorus removal / Desalination 246 : 534 ~ 544
2. [학술지(정기간행물)] - Kim D / 2009 / Long term operation of pilot-scale biological nutrient removal process in treating municipal wastewater / BIORESOURCE TECHNOLOGY 100 : 3180 ~ 3184
3. [학술지(정기간행물)] - Rajesh Banu J / 2009 / Nutrient removal in an A2O-MBR reactor with sludge reduction / Bioresour. Technol 100 : 3820 ~ 3824
4. [학술지(정기간행물)] - Fu Z / 2008 / Control of COD/N ratio for nutrient removal in a modified membrane bioreactor (MBR) treating high strength wastewater / Bioresour. Technol 100 : 136 ~ 141
5. [학술지(정기간행물)] - Ma Y / 2009 / Improving nutrient removal of the AAO process by an influent bypass flow by denitrifying phosphorus removal / Desalination 246 : 534 ~ 544
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UCI(KEPA) : I410-ECN-0101-2017-539-001548079