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Adsorption of Heavy Materials to Activated Carbon from Waste Plastics
Mamadou CISSE1, Mamadou Dian KANTE1, Cellou KANTE2, Maimouna DRAME1 and Ansoumane SAKOUVOGUI2
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DOI:10.17265/2162-5298/2026.03.002
1. Civil Engineering Department, Polytechnic Institute, Gamal Abdel Nasser University of Conakry, Conakry, BP 1147, Guinea 2. Energy Department, Higher Institute of Technology of Mamou, Mamou, BP 63, Guinea
This study demonstrated that activated carbon from waste PET bottle, could be used as an effective adsorbent for the removal of Cu(II) and Pb(II). Four adsorbents from waste PET bottle were experimented to remove Cu(II) and Pb(II). The adsorption performance study of the four absorbents used revealed a different behavior with Cu(II) and Pb(II) depending on the experimental conditions. Many experiments were carried out to study the adsorption capacity of certain parameters such as effect of concentration, effect of pH, effect of temperature and contact time. The initial of Cu(II) and Pb(II) concentration used is 100 mg/L while maintaining the adsorbent dosage at 0.150 g for each of 4 activated carbons used. The highest adsorption capacities for the removal of Cu(II) and Pb(II) were found with the activated carbon 1/4 with composite with (Coal=1 and KOH=4) which gave (7.27 mg/g and 17.74 mg/g for Cu and Pb, respectively) followed by activated carbon 2/4 with composite with (Coal=2 and KOH=4) gave (6.35 mg/g and 14.78 mg/g for Cu and Pb, respectively). On the other side the lowest adsorption capacity of 4/4 gave (5.97 mg/g and 10.28 mg/g for Cu and Pb, respectively) were recorded for (Coal=4 and KOH=4). The equilibrium time for adsorption of Cu(II) and Pb(II) from aqueous solutions by using activated 1/4 was achieved within 6 hours of contact time. Kinetics studies showed better applicability for pseudo-second-order model for copper and lead. The isotherm study indicated that adsorption data correlated well with Langmuir isotherm model than Freundlich isotherm model.
copper, lead, adsorption, waste PET bottle, activated carbon.
M-CISSE,ect...Adsorption of Heavy Materials to Activated Carbon from Waste Plastics.Journal of Environmental Science and Engineering A 15 (2026) 77-87
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