Dissertation > Excellent graduate degree dissertation topics show

Study on Waste Landfill Leachate by Biological Membrane and Membrane Biological Process

Author: LinJianGuo
Tutor: YaoZhiXiang
School:
Course: Biochemical Engineering
Keywords: landfill leachate membrane bioreactor membrane fouling
CLC: X703
Type: Master's thesis
Year: 2013
Downloads: 16
Quote: 0
Read: Download Dissertation

Abstract


Waste leachate composition is complex, whichs COD, BOD and highconcentration of ammonia nitrogen, poor biodegradability, microbial nutrientimbalance, processing difficulty, conventional biological treatment is difficult todischarge standards.Membrane bioreactor (MBR) is a new water treatment technologywhich combined membrane separation unit and the biological treatment unit.Activated sludge membrane interception that membrane bioreactor has highconcentration, the membrane bioreactor has high removal rate to COD; membranesystem long srt operation, nitrifying biofilm reactor bacteria became the dominantbacteria, has a strong effect on the removal of organic nitrogen and ammonianitrogen.This paper analyze the problem of waste leachate in the Liuzhou municipalgully as solution to biological technology, biological membrane and membranetreatment of waste leachate, study on pollutant removal efficiency, membrane foulingand cleaning.Membrane bioreactor for treatment of research showed that: activated sludgefrom sewage plant reflux pump house, the living sewage and leachate mixture,membrane bioreactor was completed by12d, the removal rate of COD is more than90%;30d of nitrifying bacteria domesticated bacteria domestication, the ammonianitrogen removal rate was stable at95%the above. Separation efficiency ofmembrane bioreactor membrane system is good, the sludge concentration is muchhigher than the traditional activated sludge process, even if the sludge load CODdifferent removal rate is still more than85%.Research shows that: in the initial stage of membrane fouling in membranetreatment in membrane surface rapidly form deposition layer, in short time the flux ofthe membrane lining to initial flux40%. When the deposition layer to reach dynamicequilibrium, the membrane flux to be slow decay at low levels. The hydraulicretention time has great effect on the attenuation of membrane flux, when hydraulicresidence time in the24-40h, attenuation of initial flux of membrane flux in10d10%.Research shows that: hydraulic membrane cleaning after cleaning the permeationproperties can be recovered to the initial flux film40%; chemical cleaning can berestored to80%. Show that the chemical cleaning is a cleaning method of a good.

Related Dissertations

  1. The Research of the Sludge Characteristics in the Cephalosporin Intermediate Pharmaceutical Wastewater by the Treatment of the NMBR,X787
  2. The Effect and Influence Factors of Novel Loop Membrane Bioreactor for Treating the Cephalosporin Intermediate Wastewater,X787
  3. Study on the Treatment of Domestic Wastewater by Sequencing Batch Membrane Bioreactor,X703
  4. Study on Submerged Membrane Reactor of A/O Process for the Treatment of Domestic Wastewater and Project Application,X703
  5. Treatment of Xanthogenate Wastewater by Membrane Bioreactor (MBR),X703
  6. The Effect of Fenton Treatment and Coagulation on COD Removal Efficiency in the Landfill Leachate Sample,X703
  7. Optimized the Design of the Chongyang Landfill Leachate,X703
  8. Study on the Preparation of the PVDF/TiO2 Nano Blending Membrane Supported by Fabric and Its Anti-Fouling Performance in MBR,X703
  9. Study on the Scaling Monitoring of Circulating Water and the Treatment of Organic Wastewater,X703
  10. Study on Process about a Modified Slow Sand Filtration Treating Landfill Leachate,X703
  11. Study on Aerobic Granular Sludge in a Continuous Flow Dynamic Membrane Bioreactor,X703
  12. Research on Membrane Fouling of Short-cut Nitrification in the Intermittently Aerated Membrane Bioreactor,X703
  13. The Research on the Anaerobic Co-digestion of the Biomass and Landfill Leachate,X703
  14. Deep Treatment of Landfill Leachate by Modified Fly Ash Experimental Study,X703
  15. Small town life Landfill two SBR treatment process applied research portfolio,X703.1
  16. Research on Operation Characteristics of ANAMMOX-Denitrification Reactor and Treatment of Landfill Leachates by It,X703
  17. Study on Wastewater Treatment Performance and Membrane Fouling of Novel Ultrafiltration Membranes,X703
  18. United Technologies of Biflocculants Precipitation and Bioaugmentation Technique to the Treatment of Landfill Leachate,X703
  19. Applicability Evaluation About Several Typical Physical and Chemical Pretreatment Technologies for Landfill Leachate,X703
  20. Effect of Sludge Retention Time on Operational Characteristics of Membrane Bioreactors,X703.3
  21. Experimental Study of an Anoxic/aerobic Membrane Bio-reactor,X703

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