Effects of Near Shore Dumping of Solid Waste on Fe(Ii) /Fe(Iii) Redox Processes And Nutrients Release At The Kibarani Dumpsite, Mombasa, Kenya
Journal Title: IOSR Journal of Applied Chemistry (IOSR-JAC) - Year 2018, Vol 11, Issue 4
Abstract
Kibarani used to be a dumping site of solid waste of Mombasa on the shore of Makupa Creek. This work was aimed at evaluating the impact of this practice on the shores of the creek. Sediment samples were analysed for Fe(II)/ Fe(III), ammonium, phosphates using the UV-Visible Spectrophotometer. The levels of porosity, total organic matter content and redox potential values were determined. Results showed that lowest redox potential values were present in Station 3 which was the most impacted area. This showed that the area was highly anaerobic and the stable form of iron was Fe(II). Fe(III) levels ranged from 0-6% of the total HCl extractable iron content found in the sediment and was not detected at a depth of 6-12 cm in the highly polluted areas. The levels of phosphates increased with increase in contamination from 2.39± 0.25 µg/g in least contaminated to 16.43±0.67 µg/g in most contaminated site. While the levels of ammonium were highest ranging from 301.42±7.50 µg/g to 402.21±0.01µg/g in the most contaminated area and the levels were lowest ranging from 183.83±9.19 µg/g to 216.24±2.72 µg/g) in the area that is rooted and animal burrowing was high. Therefore, this study showed that solid waste disposal at the shores alters the geochemical properties of an environment and as a result left negative effects on the shoreline’s flora and fauna.
Authors and Affiliations
Ali Mohammed Salim, Mariam M. Swaleh, Amir Okeyo Yusuf
Keywords
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- EP ID EP414036
- DOI 10.9790/5736-1104014854.
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