School of Physical Sciences (Phys-Sciences)
http://hdl.handle.net/20.500.12281/30
2024-03-28T17:26:16ZAccessing the suitable parameters for the production of carbonized briquettes using bagasse, clay as binder and molases as a filler.
http://hdl.handle.net/20.500.12281/14627
Accessing the suitable parameters for the production of carbonized briquettes using bagasse, clay as binder and molases as a filler.
Musiime, Ivan Bbala
Sugar Coperation Of Uganda Limited SCOUL generates about 1.5 million tons of sugarcane bagasse per year which has enormous potential for exploitation in modern commercial applications. 0.8 tons of bagasse is used in the cogeneration process during the production of electricity leaving 0.7 tons of bagasse useless and an environmental hazard. Due to rising fossil fuel prices, availability in large quantity and rapidly growing interest in bio energy as well as technological advances and environmental concerns, bagasse could be utilized for the formulation of carbonized briquettes for household use to supplement wood charcoal. In this study briquettes were formulated using carbonized bagasse, clay as a binder and molasses as a filler. Bagasse was obtained from SCOUL for carbonization.
Carbonization was carried out using a brick-built kiln while blending used a manually operated drum mixer at Josa Green Technologies in Wakiso District. A piston type briquetting press fitted onto a universal strength testing machine was used for the production of briquettes.
The most optimum parameters that produced briquettes which complied with current charcoal specifications for household use were in the ratio of 1:1:40 for molasses, clay and carbonized bagasse respectively at 0.50N/mm2 pressure. At this formulation, briquettes were produced whose ash content, volatile matter and calorific energy were 36.4%, 27.2% and 4.390 Kca/g respectively. The briquettes produced burnt without sparks and were smokeless, producing no irritating smell. They ignited easily and took relatively long before they extinguished. They were recommended for household use in Uganda.
A Research project submitted to the Department of Chemistry Makerere University as a partial fulfillment of the requirements for the award of a degree in Bachelor of Science in Industrial Chemistry.
2022-01-01T00:00:00ZAdsorption behavior of amoxicillin and sulfamethoxazole antibiotics onto activated carbon antibiotics
http://hdl.handle.net/20.500.12281/10429
Adsorption behavior of amoxicillin and sulfamethoxazole antibiotics onto activated carbon antibiotics
Kemigisha, Nancy
The ability of activated carbon to adsorb the antibiotics, amoxicillin and sulfamethoxazole from an aqueous solution was studied for batch experiments. The adsorption study was done for several variables as contact to e, adsorbate dosage and pH. It was found out that generally the adsorption rate increases with increase in contact time only up to a point when equilibrium is reached and the rate of adsorption equals the desorption rate in the aqueous solution at optimum time. Further increase in time causes no change in rate of adsorption.
The rate was also found to increase with pH till an optimum pH after which the rate decreases. Increase in adsorbent dosage was also found to increase with the rate if adsorption till a maximum point after which the rate remains constant.
The adsorption kinetics was studied for several adsorption isotherms that were found to always exist together but the favourability of one depends on the individual study parameters which are R for the Langmuir model and n for the Freundlich model
Project report submitted to the department of chemistry in partial fulfilment of the award of a bachelor of science in industrial chemistry of Makerere university
2020-12-01T00:00:00ZAdsorption of lead (II) ions from synthetic waste water using biochar derived from sugar cane bagasse
http://hdl.handle.net/20.500.12281/8549
Adsorption of lead (II) ions from synthetic waste water using biochar derived from sugar cane bagasse
Ebwosu, Moses
In this research, adsorption technique was applied for the removal of heavy metal i.e. lead and zinc in synthetic waste water. Biochar derived from sugarcane bagasse was preferred to any other materials because of its availability in Uganda. The objective of study was to investigate the removal efficiency of biochar derived from bagasse as an adsorbent for lead ions from synthetically prepared heavy metal concentrations. Adsorbents were prepared by pyrolysis of sugar cane bagasse, the biochar obtained was then ground into smaller particles. The waste water was prepared synthetically in the laboratory by dissolving metal solutions (lead nitrate) into deionized water. The prepared water was treated against the adsorbent with varying pH and adsorbent dosage using constant initial concentration of metals. The optimum pH was observed to be pH 7 for the maximum removal of lead ions. While the maximum efficiency for adsorption of biochar was 96.85% at its optimum PH of 7. The results obtained from the experiment were recorded and graphs were plotted to study the behavior of the adsorbent material in removing heavy metals from the water.
2019-07-01T00:00:00ZAdsorption of lead and different colors from waste water using coconut shells adsorbent in form of simple activated carbon
http://hdl.handle.net/20.500.12281/18027
Adsorption of lead and different colors from waste water using coconut shells adsorbent in form of simple activated carbon
Kintu, Moses Edrine
The activated carbon was prepared under limited supply of oxygen from coconut shells as the precursor.The coconut shells are the ones from coconut trees scientifically known as Cocos nucifera, L. Three different pyrolysis temperatures were considered with each three different soaking times investigated. Then also three different activation temperatures were used that is 650, 850 and 1250oC. The effect of the different activation conditions was investigated by comparing absorbance of Methylene blue in samples which had undergone the different conditions.The results strongly indicated that activated carbon used in this study were effective in removing methylene blue with a great reduction of colour and contact time to achieve equilibrium.
This report submitted to the Department of Chemistry in partial fulfillment of the requirements for the award of Bachelor's Degree in Industrial Chemistry
2024-01-01T00:00:00Z