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Physico-chemical Investigation On Dumpsite Leachate
[A CASE STUDY OF ILORIN METROPOLIS] -
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3.4.4 HEAVY METALS
Digestion of water sample
• 10mls of the sample was pipetted into soul digestion tubes
• 5mls of HNO3 was added the tube was mounted on the preheated digestion block in a fume cupboard
• It was digested for hours
• It was allowed to cool to warm temperature
• It was made to 50mls digestion volume with ultrapure water.
• It was covered with paraffin paper transporter
• It was swirled for 2 minutes
• It was transferred to a set of centrifuge tubes
• It was shaked for 10 minutes on a mechanical shaker
• It was later centrifugal for 5 minutes at 5rpm
• The supernatant was transferred to a set of plastic vials for determination of the metals on AAS
• The AAS (Atomic Absorption Spectrophotometer) was on and calibrated for a particular element in sequential order.
• The samples table was prepared i. e the sample I.D standard concentration, digestion volume and dilution factor
• The standard absorbance was run first, followed by the sample of uniform concentration at their volume wavelength slit, size.
3.5 Research Method
The study was carried out using observational descriptive research design
3.6 Sampling Technique
This study was sampled using simple random sampling.
3.7 Statistical Analysis
The statistical analysis was done with SPSS version 16.o software package and descriptive analysis was done using Microsoft excel software (Microsoft office, 2010). The results were expressed using simple descriptive statistic to analyse the data and assess the results of ANOVA and DUNCAN MULTIPLE TEST statistical tools. Difference was considered statistically significant at p Ë‚0.05.
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ABSRACT - [ Total Page(s): 1 ]ABSTRACT COMING SOON ... Continue reading---
CHAPTER ONE - [ Total Page(s): 3 ]6 Significance of the study This study is important because it serves as a medium through which numerous problems associated with the waste dumpsite can be address. This is also necessary because it is hoped that through its outcome, the magnitude of the environmental contamination in the study area will be highlighted. The outcome of the study may also give the government to appreciate waste management strategies and controls measures over indiscriminate dumping of waste. Furtherm ... Continue reading---
CHAPTER TWO - [ Total Page(s): 11 ]Usually, the main reason for the presence of heavy metals in landfill leachate is the lack of awareness among the people. A lot of hazardous waste such as clinical bandages, batteries and medicine are found in the refuse sent to landfills (Hamidi et al., 2003). Also, heavy metals such as iron, manganese, zinc, chromium, lead, copper and cadmium are present in high concentrations in the landfill leachate. These minerals can cause pollution to groundwater, surface water and reservoirs (Aziz et al. ... Continue reading---
CHAPTER FOUR - [ Total Page(s): 4 ]Superscripts a, b and c show that the values are significantly different while all the values bearing the same letter shows there no significant difference. The pH for Okefomo was 7.63 ± 0.16, Sawmill was 8.71 ± 0.15 and Irewolede was 7.79 ± 0.33 respectively. When pH of the three locations were compared, Okefomo and Irewolede were not significantly different while Sawmill was found to be different from both Okefomo and Irewolede (p ... Continue reading---
CHAPTER FIVE - [ Total Page(s): 2 ]CHAPTER FIVE5.0 DISCUSSION, CONCLUSION AND RECOMMENDATIONS5.1 Discussion of FindingsThe thrust of the study was on the physico-chemical component on dump leachate sample in Ilorin metropolis at the level of impact on the ambient environment. The findings revealed that turbidity, pH and temperature of leachate in study area show significant value. This means that the values of pH and temperature of leachate in study area are such that can exalt negative influence on people. With respect to ... Continue reading---
REFRENCES - [ Total Page(s): 5 ]REFERENCES:Abanades S., Flamant G. and Gauthier D.,(2001). Modeling of heavy metal vaporization from a mineral matrix, J. of Hazardous Materials, 88(1):75-94. Abdus-Salam, N. and Adekola, F. A. (2005). Physico- chemical characterization of some Nigeriangoethite mineral samples. Ife J. Sci. 7(1), 131 – 137. Abdus-Salam, N. and Adekola, F. A. (2005). The influence of pH and adsorbent concentration on adsorption of lead and zinc on a natural goethite. African J ... Continue reading---
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ABSRACT - [ Total Page(s): 1 ]ABSTRACT COMING SOON ... Continue reading---