Dissertation > Excellent graduate degree dissertation topics show

Experimental Research on Nitrogen Removal of Simultaneous Nitrification and Denitrification by BCMBBR

Author: ZhouAiWen
Tutor: JinLaHua
School: Jinan University
Course: Environmental Engineering
Keywords: Bio-ceramic Suspended filler moving bed Simultaneous nitrification and denitrification Denitrification
CLC: X703
Type: Master's thesis
Year: 2011
Downloads: 113
Quote: 0
Read: Download Dissertation

Abstract


In recent years, water eutrophication problem is more and more serious, urgent need to develop a nitrogen removal and easy energy saving biological nitrogen removal process. Suspended filler moving bed absorption from the advantages of the conventional fluidized bed and biological contact oxidation both in efficient sewage treatment methods for long generation time, the value-added slowly Nitrifying Bacteria provide a good living environment, the systems the denitrification ability to highlight. In this paper, the mechanism of suspended filler moving bed biological denitrification simultaneous nitrification and denitrification (SND) under aerobic conditions, detailed research on a variety of factors influence SND. Reactor is made from transparent plexiglass, lightweight Bio-ceramic as a carrier, the actual sewage treatment object, Bio-ceramic suspended filler moving-bed the SND denitrification mechanism to process and technology to achieve low sewage cost of denitrification. Test hanging film fast mud; the hanging membrane mature, determined by tests the best filler filling ratio of 30%, the optimum temperature is 20 ~ 30 ℃, optimum hydraulic retention time of 6 h; then through the single factor impact test DO, C / N, pH organics removal and nitrogen removal reactor. The following conclusions: the reactor DO 2.5 ~ 3.0mg / L conditions when simultaneous nitrification and Denitrification effect, NH4-N and TN removal rate can reach 78.47%, 51.3%; C / N 7 -10, pH value of 7.0 to 8.0, running SND nitrogen removal; orthogonal experiment and further influencing factors SND nitrogen removal reactor inspection and test, and concluded . Study single typical cycle reactor denitrification characteristics, to prove the reactor with simultaneous nitrification and denitrification performance; microenvironment theory and the theory of Microbiology test SND phenomenon explained. Further found that within the biofilm reactor activity characteristics of strong biofilm activity, oxygen uptake rate OUR than the rate of oxygen consumption SOUR were 88.13μgO2 / (g ceramsite · h) 3.09μgO2 / (mgVS · h); average nitrification rate, denitrification rate up to 2.21 mgNH4-N / (gMLSS · h), 0.98mgNO3--N / (gMLSS · h). Simultaneous nitrification and denitrification Factors Influencing the basis of the reactor, based on the principle of material balance SND kinetic model derivation and discussion, and were fitted with the experimental results; model can simulate suspended filler moving bed bio-ceramic synchronization result of nitrification and denitrification.

Related Dissertations

  1. Study of Simultaneous Desulfurization and Denitrification with Calcic-Based Absorbent in a Fixed Bed,X701.3
  2. Physical Fields’ Characteristic Study & Structural Optimization of a SCR Denitrification Reactor,X773
  3. Influence of Nitrate Concentrations on the Production of N2, N2O, NO, and CO2 by Soil Cores During Anaerobic Incubation,X131.3
  4. Treatment of Tannery Wastewater by Combined Process of Two-stage H/O and Ecological Pond: Study and Practice,X794
  5. Treatment of Effluent Water from Bio-flocculation Adsorption Technology by Biological Aerated Filter (BAF),X703
  6. A Study on Design and Biomechanics of Enhanced Bioceramic Rod,R687.3
  7. The Experimental Study on Carbon Fiber-Hybrid Membrance Bioreator for High Ammonia Nitrogen Wastewater,X703
  8. Urban sewage treatment plant process modification AB Study,X703.1
  9. The Feasibility Study of Qixian Municipal Sewage Treatment Engineering,X703
  10. Experimental Study and Chemcal Kinetics Molding of Advanced Pulverized Coal Reburning No Reduction,TQ534.9
  11. The quinoline degrading bacteria and diesel Nitrogen,X172
  12. Study on Biological Degradation of NO from Gas Streams Used Hollow Ceramic Sphere Filter,X701.7
  13. Isolation of High-lipid Microalgae and Study on the Properties of Lipid Production in Reclaimed Water,X703
  14. Research on a New Reactor for Sludge Reduction Using Oligochaete Worm with Simultaneous Nitrification and Denitrification Process,X703
  15. Pilot Scale Test of Lurgi Coal Gasification Wastewater Treatment by Biological Process,X703
  16. Studies on Optimization and Functional Enhancement of Nitrogen and Phosphorus Removal by Ferric Enzymatic Activated Sludge,X703.1
  17. Application and Efficiency of A~2/O Nitrogen and Phosphorus Removal Process in Small Towns Sewage Treatment Plant,X703
  18. The Technology Research on Simultaneous Nitrification and Denitrification with Phosphorus Removal in SBR,X703
  19. Study on Process Control and Kinetic of Simultaneous Nitrification and Denitrification Via Nitrite,X703
  20. Gradient Bioceremics Composite Coating Produced by Wide-Band Laser Cladding on Surface of Ti Alloy and Interction with Protein,TG174.46
  21. Cultivation and Research of Aerobic Granular Sludge in Membrane Bioreactor,X703

CLC: > Environmental science, safety science > Processing and comprehensive utilization of waste > General issues > Wastewater treatment and utilization
© 2012 www.DissertationTopic.Net  Mobile