Browsing School of Physical Sciences (Phys-Sciences) Collections by Type
Now showing items 1-11 of 11
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Adsorption behavior of acid-leached clays in bleaching of oil
(Scientific Research Publishing, 2015)The available data have shown that acid-leached clays had sites for adsorption of impurities in oils. Data obtained on residual impurities in cotton and sunflower-seed oils bleached with the same clay materials produced ... -
Distinguishing kaolinites and smectite clays from Central and Eastern Uganda using acidity, pH, colour and composition
(Scientific Research Publishing, 2015)The Langmuir isotherms of 1-aminobutane in isohexane slurries showed increase in clay acidity with increase in concentration of mineral acid used to leach the clay as well as the temperature at which the clay was thermally ... -
The elemental, mineralogical, IR, DTA and XRD analyses characterized clays and clay minerals of Central and Eastern Uganda
(Scientific Research Publishing, 2015)The results on the elemental and mineralogical compositions of clays from Central Uganda differed from those from the volcanic sediments of the Mt. Elgon in Eastern Uganda. Utilisation of the two types of clays should ... -
Gasification of biochar from empty fruit bunch in a fluidized bed reactor
(MDPI AG, 2010)A biochar produced from empty fruit bunches (EFB) was gasified in a fluidized bed using air to determine gas yield, overall carbon conversion, gas quality, and composition as a function of temperature. The experiment was ... -
How variation of turbidity of bleached oils characterizes purity oil and bleaching processes
(ARC, 2017)Freundlich and Langmuir isotherms have always been developed using changes in absorbance of oils. In this study we have investigated use of changes in turbidity of oils to assess bleaching efficiency and develop Freundlich ... -
Improved gasification of rice husks for optimized biochar production in a top lit updraft gasifier
(Scientific Research Publishing, 2014)Biochar is a solid material obtained from the carbonization of biomass. If properly produced, it is useful for soil application to enrich plant values. Rice husk (RH) waste, an abundant agricultural by-product, was gasified ... -
On generalized solutions of locally Fuchsian ordinary differential equations
(Scientific Advances Publishers, 2018)We consider an m-th order constant coefficient locally Fuchsian ordinary differential equation at the origin ( ( ) ( ) ( )) ( ) 0 0 0 0, 1 0 1 ∇ + 1 ∇ + + ∇ + = − r − r r y x m m m … where dx d x ∈ R, ∇ = x and prove ... -
The quality and characteristics of cotton and sunflower oil bleached using clays from Iliri, in North Eastern Uganda
(European Centre for Research Training and Development UK, 2017)Bleaching is known to alter the composition of edible oils as it removes impurities and certain food nutrients. The characteristics of bleached oil are strongly related to type bleaching medium, temperature at which ... -
Sustainable technologies for small-scale biochar production—a review
(Scientific Research Publishing Inc., 2015)Charcoal has found enormous application in both agriculture (AKA biochar) and other sectors. Despite its potential benefits, small scale technologies relevant for its production remain a challenge. Technologies striking a ... -
Upgrading and characterization of smectite from selected volcanic sediments of Eastern Uganda
(2015)Natural clays occur as mixtures of many clay minerals and remains of the rocks that underwent diagenesis to yield the clays. As weathering of clay soils never ceases it may not be possible to mine single clay minerals. The ... -
Using trace metals, peroxide, acid and iodine values to characterize oils bleached using clays from Central and Eastern Uganda
(2014)The decrease in content of iron in the bleached oils was highest for all oils bleached. The content of copper showed the smallest change. The decrease in copper content for palm oils decreased from 0.2ppm to 0.1ppm when ...