Modeling the removal of Cadmium Ions from Aqueous Solutions onto Olive Pips Using Neural Network Technique

  • Ayad A.H. Faisal Environmental Engineering Department / University of Baghdad
  • Zahraa Saud Nassir Environmental Engineering Department / University of Baghdad
Keywords: Neural network, Adsorption, Olive pips, Modeling, Equilibrium

Abstract

The uptake of Cd(II) ions from simulated wastewater onto olive pips was modeled using artificial neural network (ANN) which consisted of three layers. Based on 112 batch experiments, the effect of contact time (10-240 min), initial pH (2-6), initial concentration (25-250 mg/l), biosorbent dosage (0.05-2 g/100 ml), agitation speed (0-250 rpm) and temperature (20-60ºC) were studied. The maximum uptake (=92 %) of Cd(II) was achieved at optimum parameters of 60 min, 6, 50 mg/l, 1 g/100 ml, 250 rpm and 25ºC respectively.

Tangent sigmoid and linear transfer functions of ANN for hidden and output layers respectively with 7 neurons were sufficient to present good predictions for cadmium removal efficiency with coefficient of correlation equal to 0.99798. The sensitivity analysis for outputs of ANN signified that the relative importance of initial pH equal to 38 % and it is the influential parameter in the treatment process, followed by initial concentration, agitation speed, biosorbent dosage, time and temperature

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Published
2016-09-30
How to Cite
Faisal, A., & Nassir, Z. (2016). Modeling the removal of Cadmium Ions from Aqueous Solutions onto Olive Pips Using Neural Network Technique. Al-Khwarizmi Engineering Journal, 12(3), 1-9. Retrieved from https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/303
Section
Articles