Now showing items 1-6 of 6
Hydrothermal preparation of biochar from spent coffee grounds, and its application for the removal of cadmium from coal tailings leachate
Spent coffee grounds were transformed into biochar using a hydrothermal method. Some of the biochar product was pre-treated through surfactant impregnation with sodium dodecyl sulphate (SDS) to enhance its adsorption ...
Effect of biomass feedstock composition on biochar properties produced through hydrothermal liquefaction
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. ...
Adsorption of metal ions from fine coal tailings dump waste water using bio-char
Coal mining operations produce large amounts of tailings which contains heavy metals. Heavy metals such as cadmium (Cd) can cause environmental problems. The adsorption capacities of biochars produced from spent coffee ...
Evaluation of bio-char based products as hydrotreating catalysts for the production of renewable fuel
Increasing demand for alternative fuel from fossil fuel exists which has led to the development of new technologies for the production of bio-fuels. One such technology involves the hydrotreatment of vegetable oils such ...
Thermochemical liquefaction of water hyacinth
(ETA-Florence Renewable Energies, 2013)
The use of non-edible biomass should be investigated as alternatives for biofuel production. Aquatic weeds like water hyacinth (WH) are classified as third generation crops. WH in South Africa is an invasive species that ...
Preparation of biochars for co-gasification from sweet sorghum bagasse
(ETA-Florence Renewable Energies, 2015)
Biochar is a solid product obtained through torrefaction, liquefaction or pyrolysis of organic material. It can be used for soil amendment, activated carbon for sequestration, or as bio-coal for gasification or co-gasification. ...