ABSTRACT
Phytoremediation, based on the theory of botanic tolerance and accumulation of certain pollutant, is a new developing ecological technique primarily used to clean polluted environment. Blastofiltration is applied to phytoremediation of heavy metal polluted water at present. The study used castor, okra, melon and moringa seeds as experimental materials to investigate their potentials as possible blastofiltration materials. The results showed that with the trial time lasting up to 72 hours, lead (Pb) and cadmium (Cd) content in the contaminated water (60ppm in each case) decreased by 96-99%. The removal effects of okra and castor seeds were the most efficient whereas the whole seeds of moringa showed the best removal effects (100%) on cadmium. Plant seeds of less economic importance could represent the next generation green technology at bioremediation of heavy metal polluted water.
TABLE OF CONTENT
ABSTRACT
TABLE OF CONTENT
CHAPTER ONE
1.0Introduction 1
1.1Heavy metals and environmental pollution1
1.2Statement of the research4
1.3Scope of the research5
1.4Aim and objectives5
CHAPTER TWO
2.0Literature review6
2.1Bioremediation6
2.2Phytoremediation8
2.2.1Phytoextraction8
2.2.2Phytostabilization10
2.2.3Phytovolatilization11
2.2.4Phytofiltration12
2.3Mechanism of blastofiltration13
2.4Sources of heavy metal contamination of water16
CHAPTER THREE
3.0Materials and methods19
3.1Materials 19
3.1.1Equipment/Glassware19
3.1.2Reagents19
3.2Methods19
3.2.1Collection of sample19
3.2.2Preparation of sample20
3.2.3Preparation of standard20
3.2.4Blastofiltration setup20
3.2.5Digestion of samples21
3.2.6Determination of lead21
3.2.7Determination of cadmium21
3.3Determination o f percentage remediation22
CHAPTER FOUR
4.0Results23
CHAPTER FIVE
5.0Discussion, Conclusion and Recommendation28
5.1Discussion 28
5.2Conclusion29
5.3Recommendations30
Reference 31
