Cocoa Shell as Adsorbent for the Removal of Methylene Blue from Aqueous Solution: Kinetic and Equilibrium Study
Journal Title: Universal Journal of Environmental Research and Technology - Year 2011, Vol 1, Issue 1
Abstract
Methylene blue (MB) adsorption from an aqueous solution onto activated carbon prepared from cocoa (Theobroma cacao) shell has been studied experimentally using batch adsorption method. Adsorption kinetics and equilibrium were investigated as a function of initial dye concentration and contact time, pH and adsorbent dosage. Pseudo-first order, pseudo-second order and intraparticle diffusion models were used to examine the experimental data of different initial concentrations. Kinetics studies indicated that the adsorption followed pseudo -second order reaction. The high correlation coefficient of intraparticle diffusion model proves the pore diffusion plays a significant role for the adsorption of MB onto CSAC. Equilibrium data was analyzed using Langmuir, Freundlich and Tempkin isotherm models. The maximum monolayer adsorption capacity of Cocoa shell activated carbon (CSAC) was found to be 37.03 mg/g by using Langmuir model equation. On the basis of experimental results and the model parameters, it can be inferred that the activated carbon prepared from cocoa shell was effective for the removal of methylene blue from aqueous solution.
Authors and Affiliations
Theivarasu C. , Mylsamy S. and Sivakumar N.
Keywords
Related Articles
- EP ID EP31625
- DOI -
- Views 490
- Downloads 4
A Study on Habitat Loss of Mangrove Swamps/Salt Marshes over a Period in Visakhapatnam Urban Environment, Andhra Pradesh, India
The present study provides a baseline data on ecological status of mangrove swamps and salt marshes for their conservation and management in Visakhapatnam coastal environments. An ecological survey of outer harbor mang...
Dyeing of Cotton with Natural Dye Obtained from Flower of Tecoma stans
The synthetic dyes which are of wide commercial importance cause severe atmospheric and environmental pollution. Use of natural dye has increased several folds in the past few years due to ecofriendly approach of the p...
Coliform Contamination on different Paper Currency in Ajmer, Rajasthan, India
Microorganisms are known to spread via air, water, food etc. an important mechanism of the spread of pathogens by formites. Food, water and soil borne infection are estimated to be affecting almost half of the world po...
Biomethanation of Dye Industry Wastewater
Dyestuff sector is one of the core chemical industries in India. Maharashtra and Gujarat account for 90% of dyestuff production in India due to the availability of raw materials and dominance of textile industry in the...
A Study of Sustainable Tourist Centers in Parner Tahsil: A Geographical Analysis
Tourism is one of the largest and fastest growing industries. It is also one of the largest employing labor forces. Tourism industry has major role in development process. Nowadays, India is having greater scope in tou...