PACKED BED REACTOR SYSTEM STUDY ON THE BIOSORPTION OF Cr(VI) FROM AQUEOUS SOLUTION USING CORN COB POWDER
Table Of Contents
Chapter ONE
1.1 Introduction1.2 Background of Study
1.3 Problem Statement
1.4 Objective of Study
1.5 Limitation of Study
1.6 Scope of Study
1.7 Significance of Study
1.8 Structure of the Research
1.9 Definition of Terms
Chapter TWO
2.1 Overview of Cr(VI) Contamination2.2 Biosorption as a Remediation Technique
2.3 Previous Studies on Biosorption of Cr(VI)
2.4 Characteristics of Corn Cob Powder
2.5 Adsorption Mechanisms of Cr(VI) on Biomass
2.6 Factors Affecting Biosorption Efficiency
2.7 Comparison of Different Biomass Materials
2.8 Kinetic Models for Biosorption
2.9 Equilibrium Models for Biosorption
2.10 Regeneration Techniques for Biosorbents
Chapter THREE
3.1 Research Design3.2 Selection of Corn Cob Powder
3.3 Preparation of Cr(VI) Solutions
3.4 Experimental Setup for Biosorption Studies
3.5 Batch Biosorption Experiments
3.6 Kinetic Studies
3.7 Equilibrium Studies
3.8 Regeneration Studies
3.9 Analytical Techniques Used
3.10 Data Analysis Methods
Chapter FOUR
4.1 Biosorption Efficiency of Corn Cob Powder4.2 Influence of pH on Biosorption
4.3 Effect of Initial Cr(VI) Concentration
4.4 Kinetic Behavior of Biosorption Process
4.5 Equilibrium Isotherms
4.6 Comparison with Other Biomass Materials
4.7 Regeneration Efficiency
4.8 Mechanisms of Cr(VI) Biosorption
Chapter FIVE
5.1 Summary of Findings5.2 Achievements of the Study
5.3 Conclusions Drawn
5.4 Recommendations for Future Research
5.5 Implications for Environmental Remediation
5.6 Contribution to the Field
5.7 Limitations of the Study
5.8 Final Remarks and Acknowledgments
Thesis Abstract
The current method used in the treatment of Cr(VI) uses biosorbents that are expensive hence the need for cheaper available biosorbent. In this study,potential use of corn cob powder biomass, as a bioremediation agent for the removal of Cr(VI) was investigated in a packed bed column bioreactor. The effects of the operating parameters such as influent Cr(VI) concentration, pH, biomass concentration, flow rate and temperature, on the Cr(VI) removal were investigated in the continuous system using a packed-bed reactor. Percentage removal curves were obtained for different flow rate, pH, temperature, biomass concentration and initial concentration of Cr(VI). It was found that the adsorption of Cr(VI) to the biomass was strongly dependent on these parameters, as expected. In particular, the influent pH and temperature were most significantly affected leading toa high percentage removal of Cr(VI); a decrease in the influent pH of 2, and an increase in the temperature up to 70°C enhanced the Cr(VI) reduction in the column significantly.
Both Langmuir and Freundlich adsorption isotherms fitted reasonably well with
the data and showed high correlation coefficient (R2) values of 0.993 and 0.985 respectively. These results show that, the adsorbent can be used as a low cost alternative in biosorption of wastewaters containing lowerconcentrations of Cr(VI).Finally, the potential of the column packed with corncobbiomass for Cr(VI) detoxification has been found to be a good biosorbent in removal of Cr(VI) from aqueous solutions and also in the treatment of Cr(VI) containing industrial waste.
Thesis Overview
INTRODUCTION
1.1 Background to Study
Over the last three decades there has been increasing global concern over the public health impacts attributed to environmental pollution. The World Health Organization (WHO)estimates that about a quarter of the diseases facing mankind today occur due to prolonged exposure to environmental pollution (WHO, 2002). Pollution by heavy metals is one of the serious environmental threats as a result of various industrial discharges (Wang and Chen, 2009). Hexavalent chromium Cr (VI) is released into the environment by many industrial activities such as leather tanning, chrome plating, stainless steel welding, pigment production and nuclear weapon production (Gonzalez et al., 2003). Chromium exists in two oxidation states Cr(III) and Cr(VI), and the most toxic form is Cr(VI), which has been implicated in causation of liver damage, pulmonary congestion and oedema (Babu and Gupta, 2008; Raji and Anirudhan, 1998). Pollution of water due to presence of certain heavy metal ions is a severe socio-environmental problem caused by the discharge of industrial wastewater.
Blazingprojects Mobile App
📚 Over 50,000 Research Thesis
📱 100% Offline: No internet needed
📝 Over 98 Departments
🔍 Thesis-to-Journal Publication
🎓 Undergraduate/Postgraduate Thesis
📥 Instant Whatsapp/Email Delivery
Related Research
Exploring the Role of Gut Microbiota in Human Health and Disease...
The project titled "Exploring the Role of Gut Microbiota in Human Health and Disease" aims to investigate the intricate relationship between gut micro...
Investigating the role of microRNAs in regulating gene expression in cancer cells....
The project "Investigating the role of microRNAs in regulating gene expression in cancer cells" aims to delve into the intricate mechanisms by which m...
Exploring the Role of Epigenetics in Cancer Development and Treatment...
The project titled "Exploring the Role of Epigenetics in Cancer Development and Treatment" focuses on investigating the intricate relationship between...
Analysis of the role of microRNAs in cancer progression...
The project titled "Analysis of the role of microRNAs in cancer progression" aims to investigate the intricate role of microRNAs in the progression of...
Investigating the role of microRNAs in regulating gene expression in cancer cells....
**Research Overview: Investigating the Role of microRNAs in Regulating Gene Expression in Cancer Cells** Cancer is a complex disease characterized by uncontrol...
Exploring the role of microRNAs in regulating gene expression in cancer cells...
The project titled "Exploring the role of microRNAs in regulating gene expression in cancer cells" aims to investigate the intricate mechanisms by whi...
Exploring the Role of MicroRNAs in Cancer Progression: Mechanisms and Therapeutic Po...
The project titled "Exploring the Role of MicroRNAs in Cancer Progression: Mechanisms and Therapeutic Potential" aims to investigate the intricate inv...
Exploring the role of microRNAs in cancer progression and potential therapeutic appl...
The project titled "Exploring the role of microRNAs in cancer progression and potential therapeutic applications" aims to investigate the intricate in...
Exploring the role of gut microbiota in metabolic diseases...
The project titled "Exploring the role of gut microbiota in metabolic diseases" aims to investigate the intricate relationship between gut microbiota ...
