Nashrieh Shimi va Mohandesi Shimi Iran

Nashrieh Shimi va Mohandesi Shimi Iran

Simultaneous Nitrification and Denitrification in Wastewater Treatment by Sequencing Batch Reactor (SBR) without External Carbon Source

Document Type : Research Article

Authors
Mehdi Hajsardar 1
Seyed Mehdi Borghei 1
Amir Hesam Hasani, 1
Afshin Takdastan 2
1 Department of Environmental Engineering, Science and Research Branch, Islamic Azad University, Tehran, I.R. IRAN
2 Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, I.R. IRAN
Abstract
Nitrogen removal in Sequencing Batch Reactor (SBR) was studied. No external carbon source was added to the reactor. Step feeding process with an influent flow distribution was carried out to evaluate nitrogen removal from synthetic wastewater. Complete nitrification and denitrification were promoted while the reactor operated under Carbon/Nitrogen (C/N) ratio of 12.5 and Hydraulic Retention Time (HRT) of 1.47 d. The probabilities of values (p-value) of the results (0.31, 0.27 and 0.27) were used to test normal data distribution. Furthermore, P-values of the results were utilized in the analysis of variance and it was found that the results of the reactor operation with two times of carbon source addition, which had the best nitrogen removal efficiency, were significantly different. Generally, the reactor was operated at six different loading rates including 3 OLRs and 3 NLRs. The results showed that nitrogen removal efficiency of 91% could be achieved in SBR with two times of internal carbon source addition. The effluent concentrations of nitrogen compounds during the operation at different NLRs were below the standard levels.
Keywords
Synthetic wastewater
Nitrification
Denitrification
Nitrogen
Internal carbon source
SBR

Subjects

 
[1] کریمی، بهروز؛ بررسی استفاده از فرایند اکسایش پیشرفته در حذف ترکیب های نیتروژن دار از شیرابه کارخانه کمپوست اصفهان، نشریه شیمی و مهندسی شیمی ایران، (3) 31: 33 تا 38 (1391).
[2]Alemzadeh I., Nazemi A., Physico-Chemical and Biological Treatment of Olive Mill Wastewater by Rrotating Biological Contactor (RBC) Reactors, Iran. J. Chem. Chem. Eng.(IJCCE), 25(4): 47-53 (2006).
[3] Guo W.Q., Yang S.S., Xiang W.S., Wang X.J., Ren N.Q., Minimization of Excess Sludge Production by In-Situ Activated Sludge Treatment Processes—A Comprehensive Review, Biotechnol. Adv., 31(8): 1386-1396 (2013).
[4] Lourenço N D., Franca R.D.G., Moreira M.A., Gil F.N., Viegas C.A., Pinheiro H.M., Comparing Aerobic Granular Sludge and Flocculent Sequencing Batch Reactor Technologies for Textile Wastewater Treatment, Biochem. Eng. J., 104: 57-63 (2015)
[5] Kulkarni P., Nitrophenol Removal by Simultaneous Nitrification Denitrification (SND) Using T. pantotropha in Sequencing Batch Reactors (SBR), Bioresour. Technol., 128: 273-280 (2013)
[6] Metcalf, Eddy, Inc., "Wastewater Engineering: Treatment and Reuse", 4th Ed., Mc Graw-Hill, Boston (2003).
[7] Moura I., Pauleta S.R., Moura J.J., Enzymatic Activity Mastered by Altering Metal Coordination Spheres, J. Biol. Inorg. Chem., 13(8): 1185-1195 (2008).
[8] U.S.E.P.A., "Wastewater Treatment Fact Sheet: External Carbon Sources for Nitrogen Removal", United States Environmental Protection Agency, Office of Wastewater Management, EPA 832-F-13-016 (2013).
[9] Guo J., Yang Q., Peng Y., Yang A., WANG H., Biological Nitrogen Removal with Real-Time Control Using Step-Feed SBR Technology, Enzyme Microb. Technol, 40(6): 1564-1569 (2007). 
[10] Guo J., Peng Y., Yang Q., Wang S., Chen Y., Zhao C., Theoretical Analysis and Enhanced Nitrogen Removal Performance of Step-Feed SBR, Water Sci. Technol., 58(4): 795-802 (2008).
[11] اشرفی، الهام؛ برقعی، سید مهدی؛ جداسازی توده­های میکروبی در راکتورهای زیست فیلمی بستر متحرک به­وسیله صافی­های دست­ساز، نشریه شیمی و مهندسی شیمی ایران، (4)32: 105 تا 117 (1392).
[13] Arabi R., Bemanian, S., Taherzadeh M.J., Rapid Biodegradation of Methyl tert-Butyl Ether (MBTE) by Pure Bacterial Cultures, Iran. J. Chem. Chem. Eng. (IJCCE), 26(1): 1-7 (2007).
[13] APHA., "Standard Methods for the Examination of Water and Wastewater", 20th Edition, American Public Health Association, American Water Environment Federation, Washington D.C (1998).
[14] سازمان حفاظت از محیط زیست؛ "استانداردهای خروجی فاضلاب به استناد ماده 5 آیین نامه جلوگیری از آلودگی آب"، ص. 3 (1373).
[15] Irizar I., Zambrano J., Carlsson B., Morrás M., Aymerich,E., Robust Tuning of Bending-Points Detection Algorithms in Batch-Operated Processes: Application to Autothermal Thermophilic Aerobic Digesters, Environ. Model. Softw., 71: 148-158 (2015).
[16] Brown A.M., A Spreadsheet Template Compatible with Microsoft Excel and iWork Numbers that Returns the Simultaneous Confidence Intervals for All Pairwise Differences between Multiple Sample Means, Comput. Methods Programs Biomed., 98(1): 76-82 (2010).
[17] Scaglione D., Tornotti G., Teli A., Lorenzoni L., Ficara E., Canziani R., Malpei F., Nitrification Denitrification via Nitrite in A Pilot-Scale SBR Treating the Liquid Fraction of Co-Digested Piggery/Poultry Manure and Agro-Wastes, Chem. Eng. J., 228: 935-943 (2013).
[18] Miao L., Wang K., Wang S., Zhu R., Li B., Peng Y., Weng D., Advanced Nitrogen Removal from Landfill Leachate Using Real-Time Controlled Three-Stage Sequence Batch Reactor (SBR) System, Bioresour. Technol., 159: 258-265 (2014).
[19] Ge S., Peng Y., Wang S., Guo J., Ma B., Zhang L., Cao X., Enhanced Nutrient Removal in
A Modified Step Feed Process Treating Municipal Wastewater with Different Inflow Distribution Ratios and Nutrient Ratios, Bioresour. Technol., 101(23): 9012-9019 (2010).
[20] Ma B., Wang S., Zhu G., Ge S., Wang J., Ren N., Peng Y., Denitrification and Phosphorus Uptake by DPAOs Using Nitrite as an Electron Acceptor by Step-Feed Strategies, Front. Environ. Sci. En., 7(2): 267-272 (2013).
[21] Villaverde S., Garcia Encina P.A., Lacalle M.L., Fdez.Polamco F., New Operational Technology for Total Nitrogen Removal from Industrial Wastewater Highly Loaded with Nitrogen, Water Sci. Technol., 41(12): 85-93 (2000).
[22] Zhu R., Wang S., Li J., Wang K., Miao L., Ma B., Peng Y., Biological Nitrogen Removal from Landfill Leachate Using Anaerobic–Aerobic Process: Denitritation Via Organics in Raw Leachate and Intracellular Storage Polymers of Microorganisms. Bioresour. Technol., 128: 401-408 (2013).
[23] Sun H., Yang Q., Peng Y., Shi X., Wang S., Zhang S., Advanced Landfill Leachate Treatment Using a Two-Stage UASB-SBR System at Low Temperature, J. Environ. Sci., 22(4): 481-485 (2010).
[24] Puig S., Vives M.T., Corominas L., Balaguer M.D., Colprim J., Wastewater Nitrogen Removal in SBRs, Applying A Step-Feed Strategy: From Lab-Scale to Pilot Plant Operation, Water sci. and technol., 50(10): 89-96 (2004). 
[25] Choi E., Park H., Rhu D., Phosphorus Removal from SBR with Controlled Denitrification for Weak Sewage, Water Sci. Technol., 43(3): 159-165 (2001). 
[26] Zhang H., Jiang J., Li M., Yan F., Gong C., Wang Q., Biological Nitrate Removal Using a Food Waste-Derived Carbon Source in Synthetic Wastewater and Real Sewage, J. Environ. Manage., 166: 407-413 (2016).