Dissertation > Excellent graduate degree dissertation topics show

The Study of Treatment Wastewater from Acrylic Fiber Production

Author: JiangLiJun
Tutor: ZhangRongMingï¼›ZhouYunXia
School: Daqing Petroleum Institute
Course: Applied Chemistry
Keywords: acrylic fiber wastewater Micro-electrolysis Fenton oxidization SBMBR Micro-electrolysis and Fenton oxidization and SBMBR combined technology
CLC: X703.1
Type: Master's thesis
Year: 2008
Downloads: 201
Quote: 1
Read: Download Dissertation

Abstract


Owing to the acrylic fiber wastewater with high concentration and refractory degraded low molecular polymer,and biggish harm to circumstance, so the COD of biochemical treatment for the sewage was very difficult to meet national effluent concentration limit. So this thesis emphasized chemical pretreatment coupling with biotreament to disposal the acrylic fiber wastewater of contamination, i.e. chemical pretreatment was used to improved biodegradability of acrylic fiber wastewater and biotreament was used to eliminate residual contamination so as to meet national effluent concentration limit. If the disposed wastewater can be applied as regenerator water, it will reduce both environment pollution and a large amount of cost.Micro-electrolysis and Fenton oxidization are common methods in the processing of organic wastewater. The experimental results showed: both of them can effectively improve biodegradability of acrylic fiber wastewater. Micro-electrolysis of research shows, with the condition that pH value is 3, reaction time is 2 hours, no aeration, micro-electrolysis technology could efficiently dispose the contamination of acrylic fiber wastewater , and biodegradability raised from 0.1 to 0.2 .The pH value, catalyst, oxidant and reaction time were used to influencing factors in the Fenton oxidization pretreatment experiments of acrylic fiber wastewater. The experiment results proved, that Fenton oxidization technology was more efficient at room temperature, the optimum pH value for 3.5, reaction time for 2hs, Fe2+/H2O2/COD for 6:10:15 (mass ratio), that the removal rate of COD was 50%, and that biodegradability of acrylic fiber wastewater was raised from 0.1 to above 0.3.This research ascertained that the pretreatment micro-electrolysis and Fenton oxidization were the united technology by paralleled analysis. The united technology not only reduced disposal costs but also in a great extent, improved biodegradability of unfavorable biochemical acrylic fiber wastewater so as to ensure the stable running of biochemical processing.After processing by micro-electrolysis and Fenton oxidization combined SBMBR, the removal efficiency of COD and NH4-N+ of acrylic fiber wastewater equally attained 93.72% and 94.43%, COD and NH4-N+of the effluent water equally were only 78.05 mg/L and 2.81 mg/L, which completely achieved the first national effluent concentration limit and the effluent of system can carry on back to reuse directly. In addition, an impact test certificated that this combined processing technology can bear impact resistance and improve degradability , It is very suitable for treatment high concertration acrylic fiber wastewater.The thesis provided a completely new thought for unfavorable acrylic fiber wastewater. Its technical economy can all satisfy the processing request of wastewater, and can created favorable conditions for further utilization of wastewater.

Related Dissertations

  1. Study on Treatment of Dye Direct Blue 12B by Combined Process Usingiron-carbon Micro-Electrolysis and Fenton Oxidation,X791
  2. Study on Treatment of Dye Wastewater by Combined Process Using Micro-Electrolysis and Fenton Oxidation of the Reaction Mechanism,X791
  3. Amino silicone microemulsion electrochemical wastewater pretreatment technology research,X703.1
  4. Research on Treatment of Dyeing Wastewater by Micro-electrolysis,X703
  5. A Study on Intelligent Hybrid Membrane Bioreactor Process for Reclaimed-Water Treatment,X703
  6. SBMBR Dynamics Model Research and Automation Control,X703
  7. The Research of Acrylic Fiber Wastewater Advanced Oxidation Treatment Technology,X703.1
  8. Research on the Treatment of Acrylic Wastewater by EGSB-BAF Process,X703
  9. The Study on the Futher Treatment of Acrylic Fiber Wastewater after Biotreatment,X703
  10. Research of Reduction of Acrylic Fiber Wastewater by Fenton Process,X703.1
  11. Study on Acrylic Fiber Wastewater Treatment in a New Sequencing Batch Biofilm Reactor Process and Coagulation Sedimentation,X783.4
  12. Biofilm Anaerobic - biological contact oxidation process acrylic Wastewater,X783.4
  13. Study on Preparation of New-type Photo-catalyst Iron Nitrogen Complex and Its Application in the Degradation of Acrylic Fiber Wastewater under Visible Light Irradiation,X703
  14. Study on the Application of Ultrasonic Technique in the Disposal of Wastewater from Polyacrylonitrile Fiber Plant,X703
  15. Investigation of Acrylic Fibers Wastewater with Moving Bed Biofilm Reactor,X703
  16. Research and Engineering Practice on Treatment of the High Concentration and Undegradable Organic Wastewater by Fe/C Micro-electrolysis Process,X703
  17. The Studies of Preparation of Enhanced Micro-electrolysis Material and Treatment of Lead and Zinc Smelting Wastewater,X756
  18. Refinery wastewater reuse technology,X742
  19. Study on Treatment of Dry-Acrylic Fiber Wastewater by Electrolysis Process,X703.1
  20. Line cutting emulsion waste treatment method preliminary study,X703

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