Abstract
Manganese (Mn) is one of Earth's crust's most abundant metals. Manganese is present as a divalent ion (Mn2+) in groundwater and it is considered as a pollutant primarily due to its organoleptic properties. Therefore, manganese must be removed from wastewaters. Conventional physical and chemical treatments for the removal of Mn(II) from contaminated effluents are precipitation, filtration, ion exchange , adsorption and oxidation. These methods have several disadvantages, which include excessive requirements for reagents, unpredictable removal of metal ions, toxic sludge generation, etc. It has been discovered that the adsorption technique is one of the most effective methods for removing metal ions from aqueous solution and has, therefore, been used in this study. This dissertation therefore focuses on preparation of low-cost adsorbents for the removal of manganese from aqueous solution. Orange peels are low-cost material of interest due to their large surface areas, high swelling capacities, good mechanical strengths, and convenient use. The potential to use agricultural waste (orange peels) that litter our environment can, therefore, be a valuable resource for removing Mn(II) from aqueous solution...
M.Sc. (Chemistry)