Table of Contents
Declaration
Acknowledgement
Abstract
1. Introduction
1.1 Industrial Organic Dye Stuff
1.2 Classification System of Dyes

1.2.1 Dye Classification Based on the Chemical Structure of the Dye
1.2.2 Classification of Dyes according to their usage.

1.3 Techniques for the Removal of Dyes from Contaminated water
1.4 Physical Treatment Methods for Dye-loaded Wastewater

1.4.1 Physio-chemical Processes
1.4.2 Chemical Treatment
1.4.3 Biological Treatments

1.5 Powder of the Leaves of Azardirachta indica as Sorption Material
1.6 Purpose and Scope of this Work
2. Literature Review
3. Research Methodology
3.1 Preparation of Phyto Sorbent
3.2 Modification of Phyto Sorbent
3.3 Comparison of the Phytosorption Capacity of the powdered leaves of Azardirachta indica modified by different reagments.
3.4 Reactive red 120 Dye
3.5 Preparation of the Solutions
3.6 Findings of X-Max
3.6 Absorption Studies
4 Results and Discussion
4.1 Effect of ph
4.2 Effect of the Initial Concentration of Dye with a Fixed Dose of Phyto Sorbent
4.3 Kinetic Studies
4.3.1 Kinetic Modeling
4.4 Equilibrium Studies
4.4.1 Langmuir Isotherm
4.4.2 Freundich Isotherm
4.2.3 Tempkin Isotherm

5. Conclusions
6. References
7. Appendix
 

This research work involved the use of low cost and easily available biomass, powdered leaves of Azadirachta indica for removal red 120dye from water. Studied operating variables include pH, initial dye concentration, equilibrium and kjinetics. Rate of absorption was maximum at 2pH and Equilibrium experimental data was scrutinized using Langmuir, Freunlich and tempkin adsorption isotherms. Results were favorable for all three isotherms but tempkin gave comparatively best fit to equilibrium experimental data. Adsorption kinetics was found to obey pseudo second order kinetics model. Purpose of this work was to show that adsorption of reactive red 120 dye onto the plant biomass is one of the efficient and lowest cost method for removal of dyes as compared to other conventional methods.