Hydrocarbon degradation and accumulation by sansevierialiberica gerome and labroy polluted with crude oil | Blazingprojects Postgraduate Thesis
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Hydrocarbon degradation and accumulation by sansevierialiberica gerome and labroy polluted with crude oil

 

Table Of Contents


Chapter ONE

INTRODUCTION

  • 1.1Introduction
  • 1.2Background of Study
  • 1.3Problem Statement
  • 1.4Objective of Study
  • 1.5Limitation of Study
  • 1.6Scope of Study
  • 1.7Significance of Study
  • 1.8Structure of the Research
  • 1.9Definition of Terms

Chapter TWO

LITERATURE REVIEW

  • 2.1Overview of Hydrocarbon Degradation
  • 2.2Types of Hydrocarbons
  • 2.3Factors Affecting Hydrocarbon Degradation
  • 2.4Sansevieria Liberica and its Characteristics
  • 2.5Crude Oil Pollution and its Impact
  • 2.6Previous Studies on Hydrocarbon Degradation
  • 2.7Methods for Assessing Hydrocarbon Accumulation
  • 2.8Effects of Hydrocarbon Pollution on Plant Growth
  • 2.9Role of Microorganisms in Hydrocarbon Degradation
  • 2.10Benefits of Phytoremediation in Oil-Polluted Environments

Chapter THREE

RESEARCH METHODOLOGY

  • 3.1Research Methodology Overview
  • 3.2Research Design and Approach
  • 3.3Sampling Techniques
  • 3.4Data Collection Methods
  • 3.5Data Analysis Techniques
  • 3.6Experimental Setup
  • 3.7Variables and Controls
  • 3.8Ethical Considerations

Chapter FOUR

DATA PRESENTATION AND ANALYSIS

  • 4.1Analysis of Hydrocarbon Degradation by Sansevieria Liberica
  • 4.2Comparative Study of Crude Oil Pollution Levels
  • 4.3Effects of Hydrocarbon Accumulation on Plant Health
  • 4.4Microbial Contribution to Hydrocarbon Degradation
  • 4.5Factors Influencing Phytoremediation Efficiency
  • 4.6Implications for Environmental Sustainability
  • 4.7Comparison with Previous Research Findings
  • 4.8Recommendations for Future Studies

Chapter FIVE

SUMMARY, CONCLUSION AND RECOMMENDATIONS

  • 5.1Summary of Findings
  • 5.2Conclusion
  • 5.3Contributions to the Field
  • 5.4Practical Implications
  • 5.5Limitations of the Study
  • 5.6Future Research Directions
  • 5.7Final Remarks

Thesis Abstract

The capability of Sansevierialiberica to withstand crude oil pollution, degrade and/or accumulate the contaminant was investigated using 0.3, 1.3 and 6.3% v/w concentrations of crude oil to pollute soil vegetated with the stem cuttings of the plant. These treatments were repeated in unvegetated soils and the control had no crude oil pollution. The experiment was carried out in 3 replicates in a completely randomized design. Total Petroleum Hydrocarbons (TPH) were determined for all soil samples (vegetated and unvegetated)as well as the leaves, stem and roots using Gas Liquid Chromatography (GLC). Vegetative parameters namely; number of leaves, leaf area, plant height and stem circumference were determined for both control and polluted plants before and after pollution. The results showed that percentage TPH degraded in the vegetated soil was 95.8, 88.5 and 68.1% for 0.3, 1.3 and 6.3% v/w concentrations, respectively. S liberica alone degraded 0.87, 2.92 and 2.29% for the same treatments. Percentage accumulations rof 0.3% v/w crude oil pollution for the leaf, stem and root were 0.002, 0.036 and 0.209%, respectively, those of 1.3% v/w were 0.004, 0.067 and 0.315%, respectively while those of 6.3% v/w were 0.008, 0.085 and 0.43%, respectively. Means for the vegetative parameters for the plant parts showed that there were significant (P< 0.05) differences in some vegetative parameters after contamination with crude oil. Therefore there was phytoremediation and accumulation of hydrocarbons by S. liberica.

Thesis Overview

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