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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2023.6
- 수록면
- 12 - 23 (12page)
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초록· 키워드
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This study evaluates the performance of a simple sequencing batch reactor (SBR) with conical geometric configuration in terms of aerobic granulation and simultaneous removal of COD, nitrogen, and phosphorous from synthetic wastewater. The reactor was operated for 328 days in 3 different phases. Stable granules measuring around 0.9±0.3 mm with good settling properties were formed in phase III of operation. Optimum removals of COD (90%), NH₄<SUP>+</SUP>-N (91%), total nitrogen (87%), and PO₄<SUP>3-</SUP>-P (83%) were achieved in phase III, while the influent concentrations were COD(640±32 mg/L), NH₄<SUP>+</SUP>-N (53±2.5 mg/L), and PO₄<SUP>3-</SUP>-P (9±0.6 mg/L). Mixed liquor suspended solids increased from 0.26 g/L to 2.3 g/L while sludge volume index (SVI<SUB>30</SUB>) decreased from 380 mL/g to 65 mL/g during start-up to end of the study, respectively. The conical geometry induces an effective velocity gradient along with aeration in the reactor for better flocculation of biomass which has a good impact on the formation of stable and resistant aerobic granules. This system in conical SBR is advantageous as it attains simultaneous nutrient removal (CNP) with effective biomass retention without automatic process control. This treatment system has the potential to employ in low volume wastewater treatment in many decentralized applications.
목차
ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusion
References
참고문헌 (40)
참고문헌 신청
https://doi.org/10.1016/j.jwpe.2018.11.006[1] Wang H, Sun Y, Li L, Wu G. Enhanced nitrogen removal and minimization of N2O emission in a constant-flow multiple anoxic and aerobic process. J. Water Process. Eng. 2018;26:336-341.
Ashrafi E, Mehrabani Zeinabad A, Borghei S M, Torresi E, Muñoz Sierra J. Optimising nutrient removal of a hybrid five-stage Bardenpho and moving bed biofilm reactor process using response surface methodology. J. Environ. Chem. Eng. 2019;7:102861. https://
Oliveira A S, Amorim C L, Ramos M A, Mesquita D P, Inocêncio P, Ferreira E C, van Loosdrecht M, Castro P M L. Variability in the composition of extracellular polymeric substances from a full-scale aerobic granular sludge reactor treating urban wastewater.
Wei D, Shi L, Yan T, Zhang G, Wang Y, Du B. Aerobic granules formation and simultaneous nitrogen and phosphorus removal treating high strength ammonia wastewater in sequencing batch reactor. Bioresour. Technol. 2014;171:211-216. https://doi.org/10.1016/j.
Tian X, Zhao J, Huang J, Chen G, Zhao Y. The metabolic process of aerobic granular sludge treating piggery wastewater: Microbial community, denitrification genes and mathematical model calculation. J. Environ. Chem. Eng. 2021;9:105392. https://doi.org/10.
Ashrafi E, Mehrabani Zeinabad A, Borghei S M, Torresi E, Muñoz Sierra J. Optimising nutrient removal of a hybrid five-stage Bardenpho and moving bed biofilm reactor process using response surface methodology. J. Environ. Chem. Eng. 2019;7:102861. https://
Oliveira A S, Amorim C L, Ramos M A, Mesquita D P, Inocêncio P, Ferreira E C, van Loosdrecht M, Castro P M L. Variability in the composition of extracellular polymeric substances from a full-scale aerobic granular sludge reactor treating urban wastewater.
Wei D, Shi L, Yan T, Zhang G, Wang Y, Du B. Aerobic granules formation and simultaneous nitrogen and phosphorus removal treating high strength ammonia wastewater in sequencing batch reactor. Bioresour. Technol. 2014;171:211-216. https://doi.org/10.1016/j.
Tian X, Zhao J, Huang J, Chen G, Zhao Y. The metabolic process of aerobic granular sludge treating piggery wastewater: Microbial community, denitrification genes and mathematical model calculation. J. Environ. Chem. Eng. 2021;9:105392. https://doi.org/10.
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