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HYDROCARBON DEGRADATION AND HEAVY METALS UPTAKE BY Senna alata (L.) Roxb. IN SOIL POLLUTED WITH SPENT ENGINE OIL

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TABLE OF CONTENT
Title page—————————————————————————————————————i
Certification page—————————————————————————————————–ii
Dedication————————————————————————————————————-iii
Acknowledgement—————————————————————————————————iv
Abbreviations———————————————————————————————————-v
List of tables———————————————————————————————————-vi
List of plates———————————————————————————————————-vii
List of figures——————————————————————————————————-viii
Abstract—————————————————————————————————————-ix
Table of content——————————————————————————————————-x
CHAPTER ONE: INTRODUCTION
1.0 Background information—————————————————————————————–1
1.1 Spent engine oil—————————————————————————————————2
1.2 Senna—————————————————————————————————————3
1.3 Objectives of the study——————————————————————————————-3
CHAPTER TWO: LITERATURE REVIEW
2.0 Engine oil———————————————————————————————————-4
2.1 Engine oil additives ———————————————————————————————-4
2.2 Properties of engine oil——————————————————————————————6
2.3 Regeneration of used engine oil——————————————————————————–7
2.4 Effects of spent engine oil on the ecosystem——————————————————————8
2.5 Nutrient requirements of Senna plant————————————————————————–8
2.6 Medicinal uses of Senna—————————————————————————————–9
2.7 Phytoremediation————————————————————————————————-9
2.8 Phytoremediation of hydrocarbons—————————————————————————10
2.9 Phytoremediation of heavy metals—————————————————————————-13
2.10 Phytoremediability of Senna———————————————————————————14
xi
CHAPTER THREE: MATERIALS AND METHODS
3.0 Planting and pollution of Senna plant————————————————————————15
3.1 Total hydrocarbon analysis————————————————————————————17
3.2 Heavy metals analysis——————————————————————————————18
3.3 Determination of vegetative parameters of Senna alata—————————————————18
3.4 Determination of reproductive parameters of Senna alata————————————————19
3.5 Data analysis—————————————————————————————————–19
CHAPTER FOUR: RESULTS
4.0 Result of the total hydrocarbon analysis———————————————————————20
4.1 Percentage compositions of total hydrocarbons in the samples——————————————-24
4.2 Result of the heavy metal analysis—————————————————————————-29
4.3 Result of the vegetative parameters of Senna alata ——————————————————–34
4.4 Result of the reproductive parameters of Senna alata —————————————————–49
CHAPTER FIVE: DISCUSSION AND CONCLUSION
5.0 Discussion——————————————————————————————————–54
5.1 Conclusion——————————————————————————————————-59
REFERENCES
APPENDIX

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