Browsing Faculty of Natural and Agricultural Sciences by Subject "Biomass"
Now showing items 1-10 of 12
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Chemical and physical characterization of spent coffee ground biochar treated by a wet oxidation method for the production of a coke substitute
(Elsevier, 2020)Coke production relies on the availability, cost and quality of coking coal. Depleting coking coal resources and environmental pressure force the metallurgical industry to search for alternative methods to produce coke. ... -
Effect of temperature on density, sound velocity, and their derived properties for the binary systems glycerol with water or alcohols
(Elsevier, 2017)Densities and sound velocities of three binary systems containing glycerol + (water, methanol, or ethanol) have been measured over the entire composition range at temperatures ranging from (283.15 to 313.15) K in 10 K ... -
Forb ecology research in dry African savannas: knowledge, gaps, and future perspectives
(Wiley, 2019)Savannas are commonly described as a vegetation type with a grass layer interspersed with a discontinuous tree or shrub layer. On the contrary, forbs, a plant life form that can include any nongraminoid herbaceous vascular ... -
The influence of selected biomass additions on the co-pyrolysis with an inertinite-rich medium rank C grade South African coal
(SAIMM, 2015)Co-pyrolysis of four biomass samples (hardwood chip, softwood chip, pinewood chip, and sugarcane bagasse) with an inertinite-rich medium rank C South African coal was investigated. Proximate and ultimate analyses of the ... -
Overview and status of estuarine microphytobenthos ecological research in South Africa
(Taylor & Francis, 2018)This article presents a historical overview of estuarine microphytobenthos (MPB) research in South Africa published over the period 1950 to the present, highlighting major milestones, challenges and estuarine management ... -
Performance assessment of an improved cook stove (Esperanza) in a typical domestic setting: implications for energy saving
(Springer, 2017)Background: Much of the Malawi's energy source, which is biomass, is consumed using traditional household technologies. These technologies contribute to over consumption of biomass leading to increased forest degradation, ... -
Photosynthetic responses of canola and wheat to elevated levels of CO2, O3 and water deficit in open-top chambers
(MDPI, 2019)The effects of elevated CO2 (700 ppm) and O3 (80 ppb) alone and in combination on the photosynthetic efficiency of canola and wheat plants were investigated in open-top chambers (OTCs). The plants were fumigated for four ... -
Structural and chemical modifications of typical South African biomasses during torrefaction
(Elsevier, 2016)Torrefaction experiments were carried out for three typical South African biomass samples (softwood chips, hardwood chips and sweet sorghum bagasse) to a weight loss of 30 wt.%. During torrefaction, moisture, non-structural ... -
Thermophysical approach to understand the nature of molecular interactions and structural factor between methyl isobutyl ketone and organic solvents mixtures
(Elsevier, 2017)In this paper, we report the new experimental values of densities, speeds of sound, and refractive indices for four binary mixtures: {methyl isobutyl ketone (MIBK) + dimethyl sulfoxide (DMSO) or acetone or acetonitrile, ... -
The use of OJIP fluorescence transients to monitor the effect of elevated ozone on biomass of canola plants + Correction
(Springer, 2019)The effects of elevated ozone (O3) levels (80 ppb and 120 ppb) on photosynthetic efficiency and growth of canola plants were studied in open-top chambers. The chlorophyll a polyphasic fluorescence rise kinetics OJIP, ...