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Now showing items 11-20 of 28
Sol-gel preparations of ZnO/SnO2 composite photocatalysts applied for the degradation of PAH’s under visible light
(EARET, 2018)
Wastewater treatment challenges faced by
conventional methods have necessitated the need for
alternative/complementary methods that are environmentally
benign and efficient especially toward recalcitrant organic
pollutants. ...
Removal of COD from biodiesel wastewater using a hydrophobic polymer
(EARET, 2018)
Biodiesel production is increasing internationally as
an alternative fuel. This is due to the rapid depletion of
non-renewable energy sources. Pure biodiesel product can be
obtained by washing the product with hot water. ...
Mineralogical observation made during the kinetic dissolution study of chalcopyrite mineral in sulphate media under free pH at room temperature
(EARET, 2018)
An attempt to determine the various
phenomena at play and leaching mechanism of chalcopyrite
dissolution, was conducted on a chalcopyrite concentrate.
The study was performed at atmospheric conditions (room
temperature) ...
Brewery effluent sludge characterization and dewatering to increase potential water recycling capabilities
(EARET, 2018)
In this study various coagulants and flocculants were
tested for optimum removal of COD from brewery wastewater.
The coagulants used were ferric chloride and an organic coagulant
mixture obtained from the brewery company. ...
Effect of fine coal tailing porosity on the mobility and speciation of heavy metals in the leachates
(EARET, 2018)
The effect of porosity of coal tailings on the
mobilization and speciation of heavy metals is important for the
implementation of management strategies. In this study, column
leaching experiments were carried out to ...
Reduction of salinity of water using acrylamide-based polyampholyte
(EARET, 2018)
Polyampholytes are charged macromolecules, which carry both acidic and basic groups. These groups dissociate, leaving ions on chains and counter ions in solution, under appropriate conditions, ...
Prediction of dissolution of copper from a chalcopyrite carbonatite ore of South Africa
(EARET, 2018)
Chalcopyrite accounts for 70% of all copper bearing
minerals and therefore has been studied closely to understand the
dissolution kinetics in hope of overcoming the passivation film and
increasing the extraction rates ...
Adsorption of metal ions from fine coal tailings dump waste water using bio-char
(EARET, 2018)
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 ...
Photocatalytic degradation of naphthalene using tin dioxide nanomaterial under visible light
(EARET, 2018)
Coal processing in the refinery industry often lead to
the formation of coal tar containing polycyclic aromatic
hydrocarbons which are likely to affect human and animal health
when released in surface and ground waters. ...
Biological reduction of COD and sulphate by SRB in anaerobic moving bed biofilm reactor under high metal loading conditions
(EARET, 2018)
The performance of an anaerobic moving bed
biofilm reactor (MBBR) containing AnoxKaldnesTM K5 model for
the treatment of raw acid mine drainage (AMD) was investigated
for the reduction of sulphate and chemical oxygen ...