Dissertation > Excellent graduate degree dissertation topics show

Monitoring and Optimization of A~ 2/O Proces in Biological Nitrogen and Phosphorus Remova

Author: WangWeiFeng
Tutor: ZhouShaoQi
School: South China University of Technology
Course: Municipal Engineering
Keywords: A~2/O process C/N ratio nitrogen and phosphorus removal denitrification rate mixed sewage
CLC: X703
Type: Master's thesis
Year: 2011
Downloads: 127
Quote: 0
Read: Download Dissertation

Abstract


For the reason of long rainy season and high rainfall in South China, Municipal wastewater the pollutant concentration of municipal wastewater and C/N ratio is low. To study the nitrogen and phosphorus removal of the low concentration and low C / N ratio of sewage by A~2/O process , the long-term Monitoring and Analysis is practiced in Several wastewater treatment plants of A~2/O process and the improving way of nitrogen and phosphorus removal is also researched.A sewage treatment plant in Guangzhou with A~2/O process has been completed in three phases. Co-treatment of fecal sewage and leachate with municioal sewage is practiced in the sewage treatment plant. The results show that by adjusting the operating parameters and other optimization measures, the sytem can efficicently remove pollutants from both sewages. The average removal rate COD, NH4~+-N, T-N and T-P are 92.3%, 96.4%,61.64%,89.45% for mixture with fecal sewage and 86.4%,97.2%,52.12% and 73.94% for mixture with landfill leachate respectively.The real-time dynamic monitoring of Operating parameters and other related processing parameters of the urban sewage treatment system had been practiced in the PhaseⅠandⅡfor study of A~2/O process of the urban sewage treatment system for removing nitrogen and phosphorus during the practical operation of A~2/O process. The results show that the denitrification rates in the anaerobic tank, aerobic tank, and second settling tank were 0.87mg ( gMLSS·h)、0.48 mg/ (gMLSS·h) and 0.07 mg/ ( gMLSS·h) respectively. The content of phosphorus release in the anaerobic tank was 2.54mg/L. The nitrification rate and phosphorus uptake in the aerobic tank was respectively 1.06 mg/ (gMLSS·h) and 5.63mg/gMLSS. Carbon shortage is the main factor which limits the denitrification rate in the aerobic tank. The endogenous denitrification rate and the content of phosphorus release in the second settling tank was low and the sludge settled properly during the monitoring period.. The running of two other sewage plants of A~2/O process in Foshan was also monitored and analyzed.The analysis and inspection of effect of nitrogen and phosphorus removal when facing low NH4~+-N /T-N of influent, short sludge age, destruction of the anaerobic environment and lack of aeration and other abnormalities, provides a reference for the normal operation and optimization of a municipal wastewater treatment pant.

Related Dissertations

  1. Study of Interaction between Epoxy Molecules and Carbon Fiber Surface with Molecular Simulation,TB332
  2. Numerical Simulation of Film Cooling in Turbine Cascade with Non-Axisymmetric Endwall Method,V231.3
  3. Research on Dam-Break Probability Analysis Method for Dangerous Reservoir,TV697
  4. Construction and improvement of basic education reform process evaluation platform,G521
  5. Implementation Study of evaluation method of the high school IT courses,G633.67
  6. Packet Loss Recovering Technology for Speech Transmission over Network,TN912.3
  7. The Design and Implementation of Security Mechanism of Embedded Dependable Computer,TP309
  8. Research on Predictive Control and Simulation of pH Value Based on the Confection Process of Sodium Nitrate,TP273
  9. Process Support Vector Machine and Its Application to Satellite Thermal Equilibrium Temperature Prediction,TP183
  10. Study on Extracting Process of Rhizoma Alismatis and Rhizoma Smilacis Glabrae and Their Hypouricemic Effects,R284
  11. Research on Index System and Evaluation of University Office Greening,G647
  12. Analysis of Nutritional Compositions and Quality of Shishen (Eremurus Chinensis Fedtsch.),S647
  13. The Experimental Research on Regeneration Aggregate and Proportioning of Recycled Concrete Brick,TU528
  14. Dalian Waters Fire-fighting Forces Deployment Scheme Research,U698.4
  15. The Application of Fuzzy Comprehensive Evaluation Based on Genetic Algorithm in Vocational Evaluation of Classroom Teaching,G712
  16. Research and Design of One Kind of Paper’s QCS That Based on Embedded System,TP368.1
  17. Research and Implementation of the Conflict Resolution in Process Modeling of Magic Platform,TP311.5
  18. 1 - deoxynojirimycin synthetic route design and process optimization,TQ463.5
  19. Study on the Synthetic Process of Vat Pink R,TQ616.2
  20. Study on Application of Red Yeast Rice in Fermented Sausage,TS251.65
  21. The Research on Evaluation Method of Highway Ecosystem Healthy,X826

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