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All Journal Asean Journal of Science and Engineering (AJSE) ASEAN Journal for Science and Engineering in Materials
N’diaye, Abdoulaye Demba
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Nonlinear Analysis of The Kinetics and Equilibrium for Adsorptive Removal of Paranitrophenol by Powdered Activated Carbon N’diaye, Abdoulaye Demba
ASEAN Journal of Science and Engineering Vol 3, No 3 (2023): AJSE: December 2023
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v3i3.49136

Abstract

Paranitrophenol (PNP) is one of the toxic chemicals, non-degradable, and bioaccumulative. In the present work, the nonlinear analysis method was used to assess the kinetics and equilibrium for PNP adsorption on commercially available Powdered Activated Carbon (PAC) from an aqueous solution. The adsorption kinetic data were analyzed using the Pseudo First Order (PFO), Pseudo Second Order (PSO), and Elovich models. The experimental data were fitted using two-parameter isotherms model (Langmuir, Freundlich and Temkin) and three parameters isotherms model (Sips, Redlich – Peterson and Toth). For the kinetic study, the adsorption process fitted the PSO model. Among two-parameter models, the Freundlich is better described for PNP adsorption on PAC. From three-parameter isotherms, the Sips model was found to be the best representative for PNP adsorption on the PAC. The results of the present study showed the efficiency of using PAC as an adsorbent for the removal of PNP from an aqueous solution.
Preliminary Physico-Chemical and Phytochemical Study of Seeds of Balanites Aegyptiaca Moutaly, Mohamed; N’diaye, Abdoulaye Demba
ASEAN Journal for Science and Engineering in Materials Vol 1, No 2 (2022): AJSEM: Volume 1, Issue 2, September 2022
Publisher : Bumi Publikasi Nusantara

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Abstract

The Balanites aegyptiaca is an important tree found in some African countries. This study aimed to assess the seeds of the Balanites aegyptiaca physicochemically and phytochemically. pH, Moisture, ash, protein, and lipid contents of Balanites aegyptiaca seeds are 5.8, 2.10%, 5.6%, 17.5%, and 10.7%, respectively. The mineral elements analysis showed that the Balanites aegyptiaca is rich in calcium (247.4 mg/100 g), potassium (140 mg/100 g), sodium (30 mg/100 g), magnesium (24.6 mg/100 g), iron (8.50 mg/100 g) and zinc (5.50 mg/100 g). The result suggests that the seeds of Balanites aegyptiaca fruits could contribute greatly towards meeting the human nutritional requirement for normal growth. The presence of several phytochemical compounds showed high therapeutic potential of Balanites aegyptiaca and it can take for medicinal purposes after determining the seeds pharmacologically.
Co-Authors Moutaly, Mohamed