Dissertation > Excellent graduate degree dissertation topics show

Advanced Oxidation Processes for the Degradation of Toluenediamine Wastewater

Author: HuZuoNa
Tutor: CaoGuiPing
School: East China University of Science and Technology
Course: Chemical Engineering
Keywords: TDA Fenton’s reagent activated carbon adsorption Fe/C catalyst
CLC: X78
Type: Master's thesis
Year: 2012
Downloads: 91
Quote: 0
Read: Download Dissertation

Abstract


In the present study, the oxidation of toluenediamine (TDA) by Advanced Oxidation Process (AOPs) has been investigated which including traditional Fenton’s process, adsorption, and heterogeneous Fenton process and photocatalytic oxidation.Firstly, the oxidation of TDA by continuously pumping two solutions of ferrous sulfate (FeSO4) and hydrogen peroxide (H2O2) has been investigated. Experiments were conducted to examine the effects of pH, the amounts of FeSO4, H2O2, and temperature on the TDA removal. The mechanism of TDA degradation was proposed and oxidation kinetics was also set up. The apparent activation energy of reaction and the intrinsic reaction rate constant were calculated.Secondly, the adsorption behavior of toluenediamine on activated carbon in batch and fixed bed systems was investigated. The kinetics constant of adsorption and the thermodynamic parameters for the process of adsorption have been estimated.We investigated the influence of activated carbon modified by HNO3, H2O2, NaOH, and NH3H2O on the adsorption of TDA, respectively. The kinetics of adsorption on modified AC was investigated. With the results of the Boehm Method which applied in estimating the content of surface functional groups and the results of BET analysis, the mechanism of adsorption of TDA on modified AC was proposed.Then heterogeneous Fenton method was exploited for treating TDA wastewater in a semi-continuous reactor with the catalyst self-made. Experiments were conducted to examine the effects of pH, the amounts of catalyst, H2O2, and temperature on the TDA removal. The mechanism and kinetics of heterogeneous Fenton reaction were proposed.At last, TDA wastewater was treated by photocatalysis oxidation. The effect of different operational conditions was investigated and the kinetics and mechanism of oxidation were proposed. At the same time, the effect of crystal formation of TiO2 on the oxidation process was investigated by experiments.

Related Dissertations

  1. Density Functional Theory Study of Dimethyl Ether Adsorption on the Low-Index Pt Surface,O485
  2. Preparation of Based on the Phenolic Resin of Activated Carbon and Adsorption-Photopcatalytical Character of Supported TiO2,TQ424.19
  3. Competitive Adsorption of Phenolic/Ethanol onto Silica Fiber Effected by Ultrasound in RTM Process,TB332
  4. Studies on Synthesis, Characterization and Properties of Fe-V Co-doped TiO2 Catalyst,O614.411
  5. Study on Activated Carbon Supported Cerium Catalytic Ozone Oxidation of Chloramphenicol,X703
  6. Establishment of ELISA for Detecting Cd-MT of Pteria Penguin and Preliminary Study of ELISA-kit,X835
  7. Numerical Study on Phosphorus Distribution in Water Environment of the Three Gorges Reservoir,X832
  8. ( Hydroxy) Iron Oxide and the removal of arsenic in drinking water,O614.811
  9. Under microaerobic conditions closed calcium carbide furnace exhaust COS gas adsorption purification,X781
  10. Ion Exchange Removal of Hexavalent Selenium in Raw Water,X703
  11. Study on the Chimisorption Removal of FCC Gasoline Sulfur Compound,TE624.55
  12. Preparationandapplication of Pan-Based Amphoteric Ion Exchange Fiber,TQ342.31
  13. Study on the Preparation of Medical Grade Glycerol from the By-product of Jatropha Biodiesel,TQ223.163
  14. Experiment Study of the Biogas Purification Process by Zeolite Filling Washing,TQ221.11
  15. Study on the Synthesis and Adsorption Behaviour of Chitosan Derivative,TS254.9
  16. Preparation of Activated Carbon from Tobacco Stems and Application for Low Concentration Phosphine Adsorption,X712
  17. Adsorption Effects of Phosphate and Chromium from Aqueous Solution by Adsorption Using LDH and Mg/Fe/Al Modified Montmorillonites,X703
  18. Optimization Design Andapplication of Extracting Methods of Maize (Zea Mays L.) Volatile Compounds,S513
  19. Study on the Algae-Lytic Mechanism of Algicidal Bacteria on Microcystis Aeruginosa and the Algiciadal Substance Characteristics,X173
  20. Analysis of Adsorption Mechanism of Drinking-water Defluorination Material Bio-F,O621.25
  21. Preparation of Layered Double Hydroxide Material and Research Adsorption Capacity,O611.4

CLC: > Environmental science, safety science > Processing and comprehensive utilization of waste > Chemical industry,waste disposal and comprehensive utilization
© 2012 www.DissertationTopic.Net  Mobile