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Adsorption process, titration, adsorption isotherm were accomplished. Adsorption isotherm study which was carried out on two isotherm models: Langmuir, and Freundlich isotherm models. The applicability of the isotherm models to the adsorption study were compared by judging the correlation coefficient, R2 values.
In a recent paper by author Eng. Amany A. Mahmoud, the removal of heavy metals from liquid wastes stream is being highly investigated. Recent studies on using some polymeric materials are numerous. Also many scientists tried to use clay to remove metal ions from solutions. The present study is a study on the removal of Cu (II). Cu was chosen for the ease of its determination by EDTA. The high molecular weight in organic compound is chosen to be activated clay which is available in the local market. The effect of initial metal ion concentration, compound dosage, shaking speed, and temperature were investigated. The results obtained were be analyzed.
“Adsorption is now recognized as an effective and economic method for heavy metal wastewater treatment. The adsorption process offers flexibility in design and operation and in many cases will produce high-quality treated effluent. Because adsorption is sometimes reversible, adsorbents can be regenerated by suitable desorption process”. Amany A. Mahmoud said.
In the paper, Amany A. Mahmoud showed the effect of many variables on the sensitivity trend of the adsorption process, and how the isotherm and kinetics models were compared by judging the correlation coefficient, R2 values.
Amany A. Mahmoud goes on to suggest that “The experimental results with the modified clay showed that it was an adsorption reaction that followed Langmuir isotherm model. The maximum removal of copper ions was obtained at low copper ion initial concentration, high adsorbent dosage, low temperature, and high agitation speed”.
Author:Eng. Amany A. Mahmoud,Chemical Engineer, Chemical Department, Alexandria University, Egypt.
A paper about the study of removal of heavy metals from liquid wastes.