Dissertation > Excellent graduate degree dissertation topics show

Preparation of Sepiolite Composite Material Treating Water and Study on Properties of Disposing Dyestuff Containing Wastewater

Author: XieZhiMin
Tutor: DaiYouZhi
School: Xiangtan University
Course: Environmental Engineering
Keywords: Sepiolite Composite adsorbent TiO2 Composite photocatalyst Adsorption Photocatalytic Dye wastewater
CLC: X788
Type: Master's thesis
Year: 2007
Downloads: 216
Quote: 1
Read: Download Dissertation

Abstract


Sepiolite is a non-metallic magnesium-rich clay mineral ore specific surface area , good adsorption capacity , good corrosion resistance , thermal stability, salt and other characteristics , this paper aims to develop in the field of the environment within a powerful application potential. The one hand , the use of sepiolite strong cation exchange capacity , Fe 3 < / sup > and the Al 3 < / sup > sepiolite ore modified successfully efficient Fe - sea of sepiolite and efficient Al - sepiolite composite adsorbent, the best composite and composite adsorbent adsorption properties of the simulation of reactive brilliant blue dye wastewater . The results showed that the development of composite adsorbent to remove the target pollutants adsorption treatment 60min simulated wastewater decolorization rate of 99% ; adsorption capacity up to 58.44mg / g , relative to the activated carbon and sepiolite ore under the same conditions than the maximum adsorption capacity were increased by 3-4 times , and 9-10 times ; the compound adsorbent reactive brilliant blue pH value of wastewater , wide temperature range ; effective regeneration , regeneration reuse more than 12 times to maintain good decolorization . The other hand, by the focus potassium sulfate melting method and Tetrabutoxide sol method was acidic TiO2 sol, and then through impregnated , oscillation means two kinds of TiO2 / sepiolite composite photocatalyst , and of the composite photocatalyst adsorption of reactive brilliant blue simulated dye wastewater and photocatalytic properties. Studies have shown that the the composite adsorption rate and adsorption capacity than the original slag has improved so much ; photocatalytic system , reactive brilliant blue high removal rate ( gt ; 96 % ) is not a simple adsorption behavior , but photocatalytic degradation of mineralized completely removed, which shows that Ti has been successfully embedded into the structure of sepiolite layer ; pH value for the photocatalytic degradation mainly in the composite photocatalyst adsorption behavior of reactive brilliant blue ; H2O2 added generally enhance the photocatalytic degradation rate . The experimental results also showed that the TiO2 acidic sol through molten naphthalene , potassium SYSTEM better embedding the sepiolite layer structure , and thus to obtain higher efficiency of the TiO2 / sepiolite photocatalyst .

Related Dissertations

  1. Studies on the Synthesis and Technology of Dipentaerythritol and Its Derivative,TQ223.164
  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. The Preparation and Research of Magnetically Separable TiO2 Photocatalyst Nanofibers,TB383.1
  5. Studies on Synthesis, Characterization and Properties of Fe-V Co-doped TiO2 Catalyst,O614.411
  6. Numerical Study on Phosphorus Distribution in Water Environment of the Three Gorges Reservoir,X832
  7. The Study of Preparation and Photocatalytic Activity of TiO2 by Electrospinning,O614.411
  8. Study on Using Sepiolite As Supported Catalysts in Selective Hydrogenation of Cinnamaldehyde to Cinnamyl Alcohol,O643.32
  9. Of Bi N Co-doped TiO \u003csub\u003e 2 \u003c/ sub\u003e of the preparation and performance,O614.411
  10. Study on the Synthesis and Adsorption Behaviour of Chitosan Derivative,TS254.9
  11. Investigation of Fabrication, Characterization and Property of Fuctional Titanium Dioxide Nanoporous Materials,TB383.1
  12. Investigation of Preparation and Properties of Ordered Porous TiO2,TB383.2
  13. Analysis of Adsorption Mechanism of Drinking-water Defluorination Material Bio-F,O621.25
  14. Preparation and Performance of V2O5-WO3/MOx/Cordierite Catalyst Modified with Cu、Mn、Ce for DeNOx,X701
  15. Study on Properties of Ce、Co、Ni/V-W/TiO2 Modified by Composite Sol for Selective Catalytic Reduction,X701
  16. Preparation of One-dimensional Nano TiO2 and Study on the Decolorization of Dyeing Wastewater,TB383.1
  17. Syntheses, Structures and Properties of Metal-organic Frameworks Based on Dicarboxylate Ligands,O621.13
  18. Bio-inspired Mineralization Process of TiO2 and CaCO3 in Agarose Gel Medium,O611.3
  19. Photodegradation of Orange Ⅱ by Mesoporous TiO2,X791
  20. The Research of Fast Integrated Physicochemical Technology for Emergent Treatment of Organic Contamination Accidents,X703
  21. Combination Degradation of Chlor Pyrifos Via Biodegradation and Photodegradation,X592

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