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Multi-component sorption isotherms of basic dyes onto peat.

S J Allen1, G McKay, K Y Khader

  • 1Department of Chemical Engineering, The Queen's University of Belfast, 21 Chlorine Gardens, Belfast, BT9 5DL, UK.

Environmental Pollution (Barking, Essex : 1987)
|January 1, 1988
PubMed
Summary

This study investigates the removal of basic dyes from water using peat as an adsorbent. Adsorption equilibrium data were analyzed using isotherm models to understand dye uptake efficiency.

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Area of Science:

  • Environmental Science
  • Water Treatment
  • Adsorption Technology

Background:

  • Basic dyes are common water pollutants.
  • Peat is a readily available natural adsorbent.
  • Effective dye removal is crucial for water quality.

Purpose of the Study:

  • To investigate the adsorption of basic dyes onto peat.
  • To analyze adsorption using equilibrium isotherms.
  • To determine isotherm constants for dye-adsorbent interactions.

Main Methods:

  • Adsorption experiments with single and multi-component dye solutions.
  • Equilibrium data collection.
  • Fitting data to Freundlich, Langmuir, and Redlich-Peterson isotherm models.

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Main Results:

  • Equilibrium adsorption data were obtained.
  • Isotherm models were fitted to the experimental results.
  • Specific isotherm constants were determined for basic dye adsorption onto peat.

Conclusions:

  • Peat demonstrates potential as an adsorbent for basic dyes.
  • Isotherm modeling provides insights into the adsorption mechanism.
  • Understanding adsorption constants is key for optimizing dye removal processes.