Browsing Faculty of Engineering by Author "10216847 - Marx, Sanette"
Now showing items 1-20 of 57
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Adaptation behaviour of bacterial species and impact on the biodegradation of biodiesel-diesel
Fosso-Kankeu, E.; Marx, S.; Brink, A. (Brazilian Society of Chemical Engineering, 2017)Two bacteria, namely Bacillus subtilis and Pseudomonas aeruginosa were exposed to different concentrations of diesel to increase their adaptation to the fossil fuel, and were used for the degradation of diesel-biodiesel ... -
Amaranth lignocellulose as feedstock for bioethanol production: effect of microwave-assisted alkaline pretreatment on reducing sugar yield
Marx, S.; Xaba, N.; Chiyanzu, I. (ETA-Florence Renewable Energies, 2014)A new class of lignocellulose derived from amaranth (Amaranthus Cruentus) represents a potential feedstock for bioethanol production. The lignocellulose material can be pretreated to yield high monomeric sugar concentrations ... -
Anaerobic treatment of municipal wastewater to reduce pollution of South Africa's water resources while promoting energy efficiency at municipal treatment works (Poster)
Vusumzi, Mema; Marx, Sanette (ETA-Florence Renewable Energies, 2014) -
Assessment of the viability of Saccharomyces cerevisiae in response to synergetic inhibition during bioethanol production
De Klerk, Corli; Fosso-Kankeu, Elvis; Du Plessis, L.; Marx, S. (Indian Academy of Sciences, 2018)Second-generation biofuels, fuels produced from lignocellulosic materials, including wood, agricultural residues and biomass waste include bioethanol, biodiesel and biogas. These fuel sources have great potential as ... -
Bio-butanol fermentation using clostridium acetobutylicum and clostridium tetanomorphum in modified bioreactor flasks
Ndaba, Busiswa; Chiyanzu, Idan; Marx, Sanette (ETA-Florence Renewable Energies, 2015)An alternative new generation biofuel to bio-ethanol has attracted researchers to investigate various approaches for optimization of traditional ABE fermentation to enable bio-butanol to be produced cheaper at an industrial ... -
Bio-oil and bio-char production from sunflower hulls
Van der Gryp, Percy; Baumgarten, Ulrich; Marx, Sanette; Schabort, Corneels (ETA-Florence Renewable Energies, 2011)In this paper, the hydrothermal liquefaction of sunflower hulls into biooil and biochar is presented. The main manipulated variables that were studied were biomass load, catalyst type and temperature. The experimental ... -
Bioethanol from cassava for a community project
Marx, S.; Nquma, T.Y.; Obiero, G.O. (ETA-Florence Renewable Energies, 2010)Although the North-West Province of South Africa is renowned for its platinum industry, wildlife tourism and Casino resorts, its people are among the poorest in South Africa. The Thusanang community project concept was ... -
Biofuel production from spent coffee grounds via lipase catalysis
Karmee, Sanjib Kumar; Swanepoel, Wian; Marx, Sanette (Taylor & Francis, 2018)Lipases namely Mucor miehei, Pseudomonas cepacia, Rhizopus delemar, Geotrichum candidum, Candida rugosa, Porcine pancreas-II, Pseudomonas fluorescence, and Candida antarctica lipase-B (Novozyme-435) were employed for ... -
Biofuels from spent coffee grounds: comparison of processing routes
Marx, Sanette; Venter, Roelf; Karmee, Sanjib Kumar; Louw, Jaco; Truter, Chantelle (Taylor & Francis, 2020)Bulk fuel was produced from spent coffee grounds (SCG) using different oil extraction and fuel production methods. The highest oil yield (30.2%) and energy efficiency (50%) from continuous hydrothermal liquefaction (CHTL) ... -
Catalytic hydroprocessing of ground cottonseeds in a cottonseed oil and 1-octane solvent to produce renewable diesel. (Slide presentation)
Schabort, C.J.; Broodryk, Z.; Venter, R.; Marx, S. (ETA-Florence Renewable Energies, 2017) -
Comparative adaptation of B. subtilis and P. aeruginosa in diesel supplemented medium and impact on biodegradation potential
Fosso-Kankeu, Elvis; Marx, Sanette; Brink, Antonie (PSRC, 2014)The degree of diesel blending is likely to influence its toxicity as well as the susceptibility and speed of biodegradation. It is therefore imperative to identify strains that can degrade diesel blend in record time, such ... -
A comparison of biodiesel purification methods
Schabort, C.J.; Van der Walt, P.J.; Marx, S. (ETA-Florence Renewable Energies, 2013)The purification of biodiesel is of cardinal importance to ensure the final product meets industry standards. This final step in the production stage contributes a large portion of the cost attributed to biodiesel production. ... -
Conceptual cost of an integrated micro-algal biomass-to-liquids facility
Brink, Jaco; Marx, Sanette (ETA-Florence Renewable Energies, 2011)An orderofmagnitude cost estimate was conducted on a new integrated biomasstoliquids (BtL) process that produces 2.6 million litres of biodiesel per year from microalgal biomass harvested from the Hartbeespoort Dam. ... -
Conceptual design of an integrated micro-algal biomass-to-liquids process
Brink, Jaco; Marx, Sanette (ETA-Florence Renewable Energies, 2011)A new integrated biomasstoliquids conceptual process was developed to produce 2.6 million litres of biodiesel per year from harvested microalgal biomass. Three unconventional harvesting methods, a thermochemical ... -
Effect of biomass feedstock composition on biochar properties produced through hydrothermal liquefaction
Bartlett, D.; Venter, R.; Marx, S. (EARET, 2018)The effect that 6 different biomass feedstocks have on biochar was investigated. The biochar was produced through hydrothermal liquefaction at temperatures of 260˚C and 300˚C. The effect of temperature was also investigated. ... -
Effect of operating parameters on hydrothermal liquefaction of sugarcane bagasse
Van Rensburg, Gideon; Kruger, Rouxné; Marx, Sanette (EARET, 2018)Hydrothermal liquefaction (HTL) is a thermochemical process that produces various products from lignocellulosic feedstocks. In this study sugar cane bagasse was used as feedstock for HTL. Experiments were carried out ... -
Effect of Saccharomyces cerevisiae and Zymomonas mobilis on the co-fermentation of sweet sorghum bagasse hydrolysates pretreated under varying conditions
Ndaba, Busiswa; Chiyanzu, Idan; Marx, Sanette; Obiero, George (Elsevier, 2014)Hydrolysates from sweet sorghum bagasse pretreatment normally contains hexose and pentose sugars, and this complex mixture of sugars presents a challenge for a single microorganism to effectively ferment all sugars to ... -
Effect of temperature and cathode material on power production in an earthenware microbial fuel cell
Fosso-Kankeu, Elvis; Rosslee, Gerhard; Pandey, Sadanand; Waanders, Frans; Marx, Sanette (EARET, 2018)This study investigates the performance of microbial fuel cells (MFCs) fed with municipal sewage water considering parameters such as temperature and cathode materials. Single chamber ceramic MFCs with the cathode exposed ... -
Enhancement of bio-methane production by lignocellulose substrates
Mliswa, Vuyo; Marx, Sanette; Chiyanzu, Idan (ETA-Florence Renewable Energies, 2015)In this study, water hyacinth, sweet sorghum bagasse and amaranth stems were used in a pig manure matrix to produce biogas with a high methane content. The anaerobic digestion was monitored over a period of 40 days, after ... -
Enzymatic recovery of water from water hyacinth
Schabort, C.J.; Kühn, M.J.; Marx, S. (ETA-Florence Renewable Energies, 2013)This study sought to assess the viability of utilizing water recovered from a declared aquatic weed, Eichhornia crassipes, commonly known as the water hyacinth, for domestic, industrial and agricultural purposes. Celluclast, ...