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ADSORPTION

ADSORPTION. The removal of dissolved substances from solution using adsorbents such as activated carbon. The physical form of the GAC may depend on source of raw materials. MANUFACTURE OF ACTIVATED CARBON: DIFFERENT RAW MATERIALS. Prior carbonization for softer raw materials.

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ADSORPTION

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  1. ADSORPTION The removal of dissolved substances from solution using adsorbents such as activated carbon

  2. The physical form of the GAC may depend on source of raw materials

  3. MANUFACTURE OF ACTIVATED CARBON: DIFFERENT RAW MATERIALS

  4. Prior carbonization for softer raw materials

  5. MANUFACTURE OF ACTIVATED CARBON FROM COAL

  6. Multiple Hearth ↑ ACTIVATION FURNACE TYPES Rotary kiln

  7. DIFFERENT PHYSICAL FORMS OF ACTIVATED CARBON

  8. First magnification of carbon granules

  9. Continued magnification

  10. Continued magnification

  11. Continued conceptual magnification

  12. Continued conceptual magnification

  13. Continued conceptual magnification

  14. Scanning Electron Microscope Photo of GAC

  15. Area of a few grams of activated carbon

  16. Application Methodology

  17. Granular Activated Carbon Columns

  18. GAC Silos

  19. Gas Purification

  20. Contacting Column Internals

  21. Typical isotherm solid-phase concentration (y-axis) vs liquid phase concentration (x-axis) This is a favorable isotherm: higher solid-phase concentration at low liquid concentrations

  22. Column Hydraulics

  23. Which of these two “twins” pioneered adsorption modeling? Langmuir!

  24. Adsorptive Forces

  25. The effect of molecular size and functional groups on adsorbability

  26. Langmuir isotherm

  27. Freundlich isotherm (linear scale)

  28. Freundlich isotherm, log-log scale

  29. Freundlich isotherm, compared with real data

  30. Four GAC columns in series

  31. REACTIVATION OF ACTIVATED CARBON

  32. Transport of GAC

  33. Decentralized Multiple Hearth Regeneration Facility

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