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Biological nutrient removal using a novel five-step continuous flow activated sludge process technology

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
An anaerobic-anoxic/oxic (AA/O) five-tank biological process called five-step continuous flow activated sludge process (FSCFASP) was developed to force the oscillation of organic matter and nutrient concentrations in process reactors. The run scheme and schematic diagram of FSCFASP was described. The run cycle was divided into two symmetrical half cycles with eight periods during each cycle. The duration of each period was established according to biological process requirements. The optimal running times of the periods were 90, 60, 60, 30, 90, 60,6 0 and 30 min at the HRT of 16 h, air/water ratio of 35% and SRT of 21 day at the temperature range of 19-23 °C. The optimized system achieved 88.09±1.43%, 90.33±2.9%, 68.83±5.34% and 87.67±2.9% of the chemical oxygen demand, NH4+-N, TN, and TP removal efficiencies, respectively, during a 11-month operation with the effluent meeting the Chinese sewage discharge standard GB18918-2002 (level A). Simultaneous nitrification and denitrification phenomena were observed in the tank one which is important to reduce the quantity of aeration and the duration of a next anoxic state. Compared with other existing technologies, this system achieved high nitrogen and phosphorus removal without equipment of sludge and mixed liquor return. Thus, it is effective for reducing energy consumption.
Rocznik
Strony
165--184
Opis fizyczny
Bibliogr. 19 poz., tab., rys.
Twórcy
autor
  • Faculty of Engineering, University of Basrah, Basra, Iraq
  • School of Energy and Environment, Southeast University, Sipailou Road, Nanjing 210096, PR China, Engineering Research Center of Taihu Lake Water Environment, Southeast University, Linghu Avenue Road, Wuxi 214135, China
autor
  • Faculty of Engineering, University of Basrah, Basra, Iraq
  • School of Energy and Environment, Southeast University, Sipailou Road, Nanjing 210096, PR China, Engineering Research Center of Taihu Lake Water Environment, Southeast University, Linghu Avenue Road, Wuxi 214135, China
autor
  • School of Energy and Environment, Southeast University, Sipailou Road, Nanjing 210096, PR China, Engineering Research Center of Taihu Lake Water Environment, Southeast University, Linghu Avenue Road, Wuxi 214135, China
Bibliografia
  • [1] PETERS M., NEWLAND M., SEVIOUR T., BROOM T., BRIDLE T., Demonstration of enhanced nutrient removal at two full-scale SBR plants, Water Sci. Technol., 2004, 50 (10), 115-120.
  • [2] TSUNEDA S., OHNO T., SOEJIMA K., HIRATA A., Simultaneous nitrogen and phosphorus removal using denitrifying phosphate-accumulating organisms in a seąuencing batch reactor, Biochem. Eng. J., 2006, 27, 191-196.
  • [3] ZENG R.J., LEMAIRE R., YUAN Z., KELLER J., A novel wastewater treatment process: simultaneous nitrification, denitrification and phosphorus removal, Water Sci. Technol., 2004, 50 (10), 163-170.
  • [4] TCHOBANOGLOUS G., BURTON F. L., STENSEL H.D., Wastewater Engineering: Treatment and Reuse, 4th Ed., McGraw-Hill, New York, 2002.
  • [5] JANSSEN P.M.J., MEINEMA K., VAN DER ROEST H.F., Biological Phosphorus Removal Manual for Design and Operation, IWA Publishing of Alliance House, London, 2002.
  • [6] ZHU G.B., PENG Y.Z., Li B.K., Guo J.H., YANG Q., WANG S.Y., Biological removal of nitrogen from wastewater, Rev. Environ. Contam. Toxicol., 2008, 192, 159-195.
  • [7] JENICEK P., SVEHLA P., ZABRANSKA J., DOHANYOS M., Factors affecting nitrogen removal by ni- tritaion/denitritation, Water Sci. Technol., 2004, 49 (5-6), 73-79.
  • [8] FUX C., VELTEN S., CAROZZI V., SOLLEY D., KELLER J., Efficient and stable nitritation and denitrita- tion of ammonium-rich sludge dewatering liąuor using an SBR with continuous loading, Water Res., 2006, 40 (14), 2765-2775.
  • [9] ZENG R.J., LEMAIRE R., YUAN Z.G., KELLER J., Simultaneous nitrification, denitrification, and phosphorus removal in a lab-scale seąuencing batch reactor, Biotechnol. Bioeng., 2003, 84 (2), 170-178.
  • [10] HELLING A.C., SCHELLEN A.A.J.C., MULDER J.W., VAN LOOSDRECHT M.C.M., HEIJNEN J.J., The Sharon process: an innovative method for nitrogen removal from ammonium-rich waste water, Wa- ter Sci. Technol., 1998, 37 (9), 135-142.
  • [11] RUIZ G., JEISON D., CHAMY R., Nitrification with high nitrite accumulation for the treatment of wastewater with high ammonia concentration, Water Res., 2003, 37, 1371-1377.
  • [12] ZENG W., ZHANG Y., LI L., PENG Y.Z., WANG S.Y., Control and optimization of nitrifying communi- ties for nitritation from domestic wastewater at room temperatures, Enzyme Microb. Technol., 2009, 45 (3), 226-232.
  • [13] GAO D.W., PENG Y.Z., LI B., LIANG H., Shortcut nitrification-denitrification by real-time control strategies, Bioresour. Technol., 2009, 100 (7), 2298-2300.
  • [14] PENG Y.Z., YANG Q., LIU X.H., ZENG W., MINO T., SATOH H., Nitrogen removal via nitrite from municipal wastewater at low temperatures using real-time control to optimize nitrifying communi- ties, Environ. Sci. Technol., 2007, 41 (23), 8159-8164.
  • [15] PENG Y.Z., ZHANG S.J., ZENG W., ZHENG S.W., MINO T., SATOH H., Organic removal by denitritation and methanogenesis and nitrogen removal by nitritation from landfill leachate, Water Res., 2008, 42 (4-5), 883-892.
  • [16] MA Y., PENG Y.Z., WANG S.Y., YUAN Z.G., WANG X.L., Achieving nitrogen removal via nitrite in apilot-scale continuouspre-denitrificationplant, Water Res., 2009, 43 (3), 563-572.
  • [17] SEPA Chinese, Water and Wastewater Monitoring Methods, 4th Ed., Chinese Environmental Science Publishing House, Beijing, China, 2002.
  • [18] MUNCH E.V., LANT P., KELLER J., Simultaneous nitrification and denitrification in bench-scale se- ąuencing batch reactors, Water Res., 1996, 30 (2), 277-284.
  • [19] EKAMA G.A., WENTZEL M.C., Denitrification kinetics in biological N and P removal activated sludge systems treating municipal wastewater, Water Sci. Technol., 1999, 39 (6), 69, 77.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-782dcc62-fa4d-4627-b2f9-c6247bd7a3c9
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