Agadir Clay Materials as a New Adsorbent to Remove Cationic and Anionic Dyes from Aqueous Solutions
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 30, Vol 3, Issue 12
Abstract
This study investigated the potential use of clay minerals originated from barrage situated in Agadir (Morocco), as a low-cost, natural, eco-friendly and alternative adsorbent for removal of Methylene Blue (MB) and Congo Red (CR), respectively a basic and an acid dye, from aqueous solution within a batch process. The adsorbent was characterized by X-ray diffraction, BET surface area, scanning electron microscopy (SEM) and dispersive energy of spectroscopy (EDS). The effects of various experimental parameters were examined such as contact time, initial dye concentration, adsorbent concentration, solution pH, and temperature. In order to determine the best-fit-isotherm, the experimental data were analyzed by the Freundlich and Langmuir equations. The adsorption equilibrium was well described by the Langmuir isotherm model with maximum adsorption capacity of 125mg.g−1 for MB and 91mg.g−1 for CR, at room temperature. The kinetic data were analyzed using pseudo-first-order and pseudo-second-order models. The pH heavily affects the adsorption capacity, the removal percentage reached 99.22% for MB at pH=10, and 98.97% for CR at pH=2. The values of activation parameters such as free energy (ΔG), enthalpy (ΔH) and entropy (ΔS) were also determined. However, the results pointed to the effectiveness of this Agadir Clay (AC) as an interesting alternative material with respect to more costly adsorbent used, for removing basic and acid dyes from aqueous solutions. Keywords: Methylene
Authors and Affiliations
M. El ouardi
Keywords
Related Articles
- EP ID EP100907
- DOI -
- Views 85
- Downloads 0
Thermodynamics of Solvation for Nano Copper Sulfate in Mixed DMF–H2O Solvents at Different Temperatures
The molar solubility for nano copper sulfate (CuSO4) in different percentages of dimethylformamide (DMF) and water were measured at 292.15, 303.15, 308.15 and 313.15K. From the molar solubilities for nano CuSO4 ,...
DEVELOPMENT OF COMPUTERIZED ELECTRONIC COUNTER AND TIMER USING LCD MONITOR IN NAVAL STATE UNIVERSITY
The main objective of this study was to develop a computerized electronic counter and timer using LCD monitor to be used in cashier’s office of Naval State University, Naval, Biliran, Philippines. This study u...
Performance Comparison of Adaptive Algorithms for Noise Cancellation
Adaptive filtering is widely researched topic in the present era of communication. When the received signal is continuously corrupted by noise or interference where both the noise and signal changes continuously,...
Trend Analysis of Key Cellular Network Quality Performance Metrics
Assessment and analysis of key quality performance indicators of a cellular network is better done over a period of time like days or months in order to have a proper perspective of the reliability of performance...
Simple and Cost-effective Heart Rate Meter Using PIC Microcontroller Simple and Cost-effective Heart Rate Meter Using PIC Microcontroller
One of the major and significant physiological parameters of human cardiovascular system is the heart rate. Heart rate is represented by the number of times the heart beats per minute. The heart rate data can ref...