Amoxicillin removal from aqueous solution using activated carbon prepared by chemical activation of olive stone

2016 ◽  
Vol 24 (11) ◽  
pp. 9993-10004 ◽  
Author(s):  
Lionel Limousy ◽  
Imen Ghouma ◽  
Abdelmottaleb Ouederni ◽  
Mejdi Jeguirim
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Chemical Activation ◽  
Olive Stone ◽  
Amoxicillin Removal

Adsorptive Removal of Pb(II) Ion from Aqueous Solution Using Rice Husk-Based Activated Carbon

2014 ◽  
Vol 875-877 ◽  
pp. 196-201 ◽  
Author(s):  
Mohd Faisal Taha ◽  
Ahmad S. Rosman ◽  
Maizatul S. Shaharun
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Rice Husk ◽  
Low Cost ◽  
Chemical Activation ◽  
Textural Properties ◽  
Activation Process ◽  
Adsorption Studies ◽  
Three Samples ◽  
Equilibrium Data

The potential of rice husk-based activated carbon as an alternative low-cost adsorbent for the removal of Pb (II) ion from aqueous solution was investigated. Rice husk-based activated carbon was preparedviachemical activation process using NaOH followed by the carbonization process at 500°C. Morphological analysis was conducted using field-emission scanning electron microscope /energy dispersive X-ray (FESEM/EDX) on three samples, i.e. raw rice husk, rice husk treated with NaOH and rice husk-based activated carbon. These three samples were also analyzed for their C, H, N, O and Si contents using CHN elemental analyzer and FESEM/EDX. The textural properties of rice husk-based activated carbon, i.e. surface area (253 m2/g) and pore volume (0.17 cm2/g), were determined by N2adsorption. The adsorption studies using rice husk-based activated carbon as an adsorbent to remove Pb (II) ion from aqueous solution were carried out at a fixed initial concentration of Pb (II) ion (150 ppm) with varying adsorbent dose as a function of contact time at room temperature. The concentration of Pb (II) ion was determined by atomic absorption spectrophotometer (AAS). The removal of Pb (II) ion from aqueous solution increased from 35 % to 82 % when the amount of rice husk-based activated carbon was increased from 0.05 g to 0.30 g. The equilibrium data obtained from adsorption studies was found to fit both Langmuir and Freundlich adsorption isotherms.

Cadmium removal from aqueous solution using microwaved olive stone activated carbon

2013 ◽  
Vol 1 (3) ◽  
pp. 589-599 ◽  
Author(s):  
Tamer M. Alslaibi ◽  
Ismail Abustan ◽  
Mohd Azmier Ahmad ◽  
Ahmad Abu Foul
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Cadmium Removal ◽  
Olive Stone

scholarly journals Kinetic, Equilibrium and Thermodynamic Studies on Removal of Cu(II) and Pb(II) by Activated Carbon Prepared from Macro-Algae (Kappaphycus alvarezii)

2019 ◽  
Vol 31 (6) ◽  
pp. 1343-1348
Author(s):  
K.V. SATHASIVAM ◽  
N.K. FULORIA ◽  
S. FULORIA ◽  
P.J. DARSHENEE ◽  
R. XAVIER ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Contact Time ◽  
Kappaphycus Alvarezii ◽  
Chemical Activation ◽  
Freundlich Isotherm ◽  
Experimental Parameters ◽  
Equilibrium Data ◽  
Kinetic Equilibrium ◽  
Macro Algae

Present study was intended to explore the biosorption of Cu(II) and Pb(II) ions in aqueous solution using activated carbon biosynthesized from macro-algae Kappaphycus alvarezii under different experimental parameters. Activated carbon was produced via zinc chloride chemical activation method. The effect of parameters such as pH, temperature over biosorption, amount of adsorbents, initial Cu(II) and Pb(II) aqueous concentration, and contact time were studies. The pH 4.0 for adsorption of Cu(II) and Pb(II), and metal ions uptake contact time of 60 min were considered as optimum. Equilibrium data of biosorption were analyzed by models of Langmuir and Freundlich isotherm at different initial Cu(II) and Pb(II) aqueous solutions concentration. Fruendlich adsorption isotherm model fitted well into biosorption data with a regression value of 0.9986. Thermodynamic parameters such as change in change of enthalpy (ΔHº), change of entropy (ΔSº) and Gibbs free energy (ΔGº) were also determined.

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