Ardışık Kesikli Reaktör ve Ardışık Kesikli Biyofilm Reaktörde Birlikte Nitrifikasyon Denitrifikasyona C/N Oranının Etkisinin Karşılaştırılması

Abstract

Bu çalışmada, ardışık kesikli reaktör (AKR) ve ardışık kesikli biyofilm reaktörün (AKBR) birlikte nitrifikasyon denitrifikasyon (BND) performansına farklı C/N oranlarının (5, 10 ve 15) etkisi karşılaştırılmıştır. Her iki reaktörde % 90’nın üzerinde KOİ giderme verimleri elde edilmiş olup, KOİ giderimi farklı C/N oranlarından etkilenmemiştir. Farklı C/N oranlarının reaktörlerin NH4+-N giderme verimine etkisi az olmasına karşın TN giderme verimine etkisinin daha büyük olduğu belirlenmiştir. Her iki reaktörde C/N oranı arttıkça TN giderme verimi ve birlikte nitrifikasyon denitrifikasyon verimi artmıştır. AKBR’de birlikte nitrifikasyon denitrifikasyon verimi AKR’den daha yüksek bulunmuştur. Sonuçlar, her iki reaktörde farklı C/N oranlarının etkisinin aynı olduğunu ve AKBR’de daha yüksek azot giderimi ile daha etkili birlikte nitrifikasyon denitrifikasyonun elde edildiğini göstermiştir.

Keywords

• Birlikte nitrifikasyon denitrifikasyon, Ardışık kesikli reaktör, Ardışık kesikli biyofilm reaktör, C/N oranı

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Abstract

In this study, the effect of different carbon to nitrogen (C/N) ratios (5, 10 and 15) on simultaneous nitrification and denitrification (SND) in sequencing batch reactor (SBR) and sequencing batch biofilm reactor (SBBR) was compared. The COD removal efficiencies in both reactor were above 90 % suggesting that it was irrespective of C/N ratios. The C/N ratios has little effect on NH4+-N removal, while they had greater effect on the removal of TN. The TN removal efficiency and simultaneous nitrification denitrification efficiency in both reactors increased with increases in C/N ratios. The simultaneous nitrification denitrification efficiency inSBBR is higher than SBR. The results showed that the effect of different carbon to nitrogen (C/N) ratios in both reactors was similar and SBBR had higher nitrogen removal and simultaneous nitrification denitrification

Keywords

• Simultaneous nitrification denitrification, Sequencing batch reactor, Sequencing batch biofilm reactor, C/N ratio

References

1. 1. He S., Xue G., Wang B. 2009. Factors Affecting Simultaneous Nitrification and Denitrification (SND) and Its Kinetics Model in Membrane Bioreactor, Journal of Hazardous Materials, 168: 704-710.
2. 2. Lan C. J., Kumar M., Wang C. C., Lin J. G. 2011. Development of Simultaneous Partial Nitrification, Anammox and Denitrification (SNAD) Process in a Sequential Batch Reactor, Bioresource Technology, 102: 5513-5519.
3. 3. Yang S., Yang F. 2011. Nitrogen Removal via Short-Cut Simulataneous Nitrification and Denitrification in an Intermittently Aerated Moving Bed Membrane Bioreactor, Journal of Hazardous Materials, 195: 318-323.
4. 4. Seifi M., Fazaelipoor M. H. 2012. Modeling Simultaneous Nitrification and Denitrification (SND) in a Fluidized Bed Biofilm Reactor, Applied Mathematical Modelling, 36(11): 5603-5613.
5. 5. Rong Q., Yang K., Yu Z. 2007. Treatment of Coke Plant Wasewater by SND Fixed Biofilm Hybrid System, Journal of Environmental Sciences, 19(2): 153-159.
6. 6. Chiu Y. C., Lee L. L., Chang C. N., Chao A. C. 2007. Control of Carbon and Ammonium Ratio for Simultaneous Nitrification and Denitrification in a Sequencing Batch Bioreactor, International Biodeterioration & Biodegradation, 59: 1-7.
7. 7. Zhu G., Peng Y., Li B., Guo J., Yang Q., Wang S. 2007. Biological Removal of Nutrient from Wastewater, Reviews of Environmental Contamination and Toxicology, 192: 159-195.
8. 8. Liu H., Yang F., Shi S., Liu X. 2010. Effect of Substrate COD/N Ratio on Performance and Microbial Community Structure of a Membrane Aerated Biofilm Reactor, Journal of Environmental Sciences, 22(4): 540-546.

9. 9. Zhu G. B., Peng Y. Z., Wu S. Y., Wang S.Y., Xu S. W. 2007. Simultaneous Nitrification and Denitrification in Step Feeding Biological Nitrogen Removal Process, Journal of Environmental Sciences, 19 (9): 1043-1048.
10. 10. Pochana K., Keller J. 1999. Study of Factors Affecting Simultaneous Nittrification and Denitrification (SND), Water Science and Techmology, 39 (6): 61-68.
11. 11. Ding D., Feng C., Jin Y., Hao C., Zhao Y., Suemura T. 2011. Domestic Sewage Treatment in a Sequencing Batch Biofilm Reactor (SBBR) with and Intelligent Controlling System, Desalination, 276(1-3): 260-265.
12. 12. Ohashi A., Viraj de Silva D. G., Mobarry B., Manem J. A., Stahl D. A., Ritmann B. E. 1995. Influence of Substrate C/N Ratio on the Structure of Multi-Species Biofilms consisting of Nitrifiers and Heterotrophs, Water Science and Techmology, 32 (8): 75-84.
13. 13. Xing X., Jun B., Yanagida M., Tanji Y., Unno H. 2000. Effect of C/N Values on Microbial Simultaneous Removal of Carbonaceous and Nitrogenous Substances in Wastewater by Single Continuous-Flow Fludized-Bed Bioreactor Containing Porous Carrier Particles, Biochemical Engineering Journal, 5 (1): 29-37.
14. 14. APHA, AWWA, WCPF. 1998. Standard Methods for the Examination of Water and Wastewater, 20th Edition, American Public Health Association, Washington, D.C.
15. 15. Meng Q., Yang F., Liu L., Meng F. 2008. Effect of COD/N and DO Concentration on Simultaneous Nittrification and Denitrification in an Airlift Internal Circulation Membrane Bioreactor, Journal of Environmental Sciences, 20 (8): 933-939.
16. 16. Fu Z., Yang F., Zhou F., Xue Y. 2009. Control of COD/N Ratio for Nutrient Removal in a Modified Membrane Bioreactor (MBR) Treating High Strength Wastewater, Bioresource Technology, 100: 136-141.
17. 17. Third K. T., Burnett N. B., Cord-Ruwisch R. 2003. Simultaneous Nitrification and Denitrification Using Stored Subtrate (PHB) as the Electron Donor in an SBR, Biotechnology and Bioengineering, 83 (6): 706-720.
18. 18. Münch E. V., Lant P., Keller J. 1996. Simultaneous Nitrification and Denitrification in BenchScale Sequencing Batch Reactors, Water Research, 30 (2): 277-284.
19. 19. Zeng R. J., Lemaire Z., Yuan Z., Keller J. 2003. Simultaneous Nitrification, and Denitrification, and Phosphorus Removal in a Lab-Scale Sequencing Batch Reactor, Biotechnology and Bioengineering, 84 (2): 170-178
20. 20. Xia S. Q., Li J. Y., Wang R. C. 2008. Nitrogen Removal Performance and Microbial Community Structure Dynamics Response to Carbon Nitrogen Ratio in a Compact Suspended Carrier Biofilm Reactor, Ecological Engineering, 32 (3): 256-262.
21. 21. Feng Q., Cao J. S., Chen L. N., Guo C. Y., Tan J. Y., Xu H. L. 2011. Simultaneous Nitrification and Denitrification at Variable C/N Ratio in Aerobic Granular Sequencing Batch Reactors, Journal of Food, Agriculture & Environment, 9 (3&4): 1131-1136.