Browsing by Author "Iji, J."

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    EFFICIENCY OF COMBINED USE OF CHARCOAL AND ACTIVATED CARBON FROM COCONUT SHELLS IN THE PURIFICATION OF GENERATOR EXHAUST FUMES
    (Department Of Science And Laboratory Technology, Nasarawa State University Keffi., 2016-04-09) Iji, J.; Ibrahim, F. B; Giwa, A.
    Studies have shown that exhaust fumes contain many known or suspected carcinogens. This study reports the use and effectiveness of granular activated carbon and charcoal made from agricultural waste (coconut shell) for the removal of contaminants from gasoline powered generator exhaust fumes. In order to treat the exhaust from gasoline powered generator, a reactor referred to as adsorption column was used, with the gas flow being vertical through the adsorbents (charcoal and activated carbon) that were placed inside the reactor. Granulated activated carbon (200, 400, 600, 800, and 1000 g) were placed so that the exhaust from the generator could pass through it freely and also prevent the samples from falling out. The gas after the treatment was let into the gas analyzer to analyze the proportions of the gas components. This was done until the optimum quantity of activated which produced the best result of the filtered exhaust was obtained. These procedures were repeated using charcoal. 800 g of charcoal and activated carbon of mass 1000 g gave the best treatment, these were then combined as pre-filter and filter respectively in the adsorption column. Concentrations of the exhaust gas were taken at 5 min interval for a period of 25 min by using a gas analyzer, and the useful life was determined to be 20 min. Charcoal and activated carbon made from coconut shell resulted to percentage pollutant removal by 34.1% HC, 70.4% NOx, 66.1% CO and 52.5% CO2 from a gasoline powered generator exhaust fumes. The renewal of the adsorbent can be done by re-activation.