School of Physical Sciences (Phys-Sciences) Collection

Permanent URI for this collection

https://dissertations.mak.ac.ug/handle/20.500.12281/6447

Browse

Browsing School of Physical Sciences (Phys-Sciences) Collection by Subject "Activated carbon"
  • Item
    Laboratory wastewater treatment using activated carbon obtained from dry maize cobs
    (Makerere University, 2023-03-12) Katongole, Simon
    This research project was aimed at treating laboratory wastewater obtained from and tested at Uganda Industry Research Institute (UIRI) Chemistry laboratory. The significance of this research was to create a basis for the use of biomass based activated carbon in the treatment/purification of laboratory wastewater. This was to present a future benefit of reducing expenses for both government and private laboratories through reuse of this purified water in laboratory experiments. This analysis was limited to testing the removal of traces of Calcium, Magnesium, and Chloride ions in the Laboratory wastewater. Further tests were pH and colour change.The biomass used was dry maize cobs which were locally sourced, from Kanyawawa – Kibale district in four sacks each carrying one hundred kilograms of maize cob. These were carbonized and chemically activated using analytical grade calcium chloride as an activating agent. The water samples were obtained from the Uganda Industry Research Institute (UIRI) Chemistry laboratory sewer into three plastic bottles. These were tested and found with initial concentrations of 383.4 mg/l Chloride, 15mg/l Calcium, and 15mg/l Magnesium. The percentage yield of activated carbon was 85.1064%. Part of this carbon was placed in a plastic column in which the water was purified and tested. The Calcium, Magnesium and Chloride ions were beyond detectable limits. In conclusion, the maize cob activated carbon completely removed traces of Calcium ions, Magnesium ions and Chloride ions.
  • Item
    Removal of chloride ions in waste water using activated carbon from maize cobs and coconut shells
    (Makerere University, 2024-11-19) Muniirah, Swabrah
    In a study carried out to remove chloride ions from a waste water sample using activated carbon from maize cobs and coconut shells. A waste water sample from surface run off water was collected. The initial chloride content of ions in waste water was determined as (10196.07317mg/L Cl). This is a highly unacceptable level of chloride ions in water therefore there is need to remove the chloride ions in this waste water sample. Activated carbon was used as the adsorbent to remove the chloride ions in water. The activated carbon was made from coconut shells and maize cobs. It was then characterized. An orbital shaker was used to determine the time contact for 8 intervals from 0-70 minutes. The results were tabulated. The percentage removal from the beakers with activated carbon from coconut shells was the highest with (77.18906532%) and the one from maize cobs was (70.5539021%). This indicated that coconut shells are a better source of activated carbon than maize cobs.
  • Item
    using activated carbon from food waste to control pollution
    (Makerere university, 2022-10-15) Kasule, Shannon Patrick
    Pollution being on the rise in pharmaceutical industries considering the case at cipla quality chemical industries in Luzira and yet there are food wastes from the canteen and kitchen, the research is emphasizing effective utilization where from the food waste , activated carbon is going to be made and used to control pollution from the industry this will in turn save costs for the disposal of food wastes and proper management of the industrial pollutants