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Adsorption-desorption behavior of copper in Sichuan mine soils was studied using the batch method. The measured copper adsorption data was described by the Langmuir equation and the Freundlich equation respectively. The results indicated that the Freundlich equation was less suitable than the Langmuir equation to describe the adsorption data. In contrast to copper adsorption, the amount as well as...
The removal of Cu2+ and Cd2+ of aqueous solution by residual sludge from four type sewage treatment plant was investigated. Effect of adsorption time, kinetics and thermodynamics of adsorption was researched. The study indicated that all of the sludge can absorb mono-component Cu2+ or Cd2+ but the sludge from Petrochemical Wastewater plant had deposition rather than adsorption on Cu2+ or Cd2+. The...
Adsorption of Heavy metals from aqueous solutions by industrial waste sludge was investigated. The effect of time and initial concentration solution pH, were studied in batch kinetic experiments. The initial uptake was rapid and equilibrium was achieved within 180 minutes. The data relating to percentage of adsorption at different pH values were fitted into the surface complex model and the overall...
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