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Browsing by Author "Zvimba, JN"

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Fate and behavior of ZnO- and Ag-engineered nanoparticles and a bacterial viability assessment in a simulated wastewater treatment plant

Author: Musee, N ; Zvimba, JN ; Schaefer, Lisa M ; Nota, N ; Sikhwivhilu, LM ; Thwala, Melusi Date: 2014 The fate and behaviour assessment of ZnO- and Ag-engineered nanoparticles (ENPs) and bacterial viability in a simulated wastewater treatment plant (WWTP) fed with municipal wastewater was investigated through determination of ENPs stability ... Read more
Fate and behaviour of ZnO engineered nanoparticles in a simulated domestic wastewater treatment plant

Author: Chaúquea, EFC ; Zvimba, JN ; Ngila, JC ; Musee, N Date: Aug 2013 Wastewater treatment plants (WWTPs) employ activated sludge processes to treat domestic wastewater using a consortium of bacteria essentially to degrade organic matter. However, bacteria activity is inhibited by toxic substances; thus, ... Read more
Fe(II) oxidation during acid mine drainage neutralization in a pilot-scale sequencing batch reactor

Author: Zvimba, JN ; Mathye, M ; Vadapalli, VRK ; Swanepoel, H ; Bologo, L Date: Oct 2013 This study investigated Fe(II) oxidation during acid mine drainage (AMD) neutralization using CaCO(sub3) in a pilot-scale Sequencing Batch Reactor (SBR) of hydraulic retention time (HRT) of 90 min and sludge retention time (SRT) of 360 min ... Read more
Passive neutralization of acid mine drainage using basic oxygen furnace slag as neutralization material: experimental and modelling

Author: Zvimba, JN ; Siyakatshana, Njabulo ; Mathye, Matlhodi Date: Dec 2015 This study investigated passive neutralization of acid mine drainage using basic oxygen furnace slag as neutralization material over 90 days, with monitoring of parameters quality and assessment of their removal kinetics. The quality was ... Read more
Potential susceptibility inhibitory effect of Ag and ZnO engineered nanoparticles on bacterial strains: effect of pH and temperature

Author: Mboyi, A ; Musee, N ; Zvimba, JN ; Momba, MNB Date: Aug 2013 The economic and social benefits of metallic silver (n-Ag) and zinc oxide (n-ZnO) engineered nanoparticles (ENPs) applications in medical, technological, environmental remediation, consumer products, among other have widely been demonstrated. ... Read more
Recovery of calcium carbonate from steelmaking slag and utilization for acid mine drainage pre-treatment

Author: Mulopo, J ; Mashego, M ; Zvimba, JN Date: Jun 2012 The conversion of steelmaking slag (a waste product of the steelmaking process) to calcium carbonate (CaCO3) was tested using hydrochloric acid, ammonium hydroxide and carbon dioxide via a pH-swing process. Batch reactors were used to assess ... Read more
Regeneration of barium carbonate from barium sulphide in a pilot-scale bubbling column reactor and utilization for acid mine drainage

Author: Mulopo, J ; Zvimba, JN ; Swanepoel, H ; Bologo, LT ; Maree, J Date: Jan 2012 Batch regeneration of barium carbonate (BaCO3) from barium sulphide (BaS) slurries by passing CO2 gas into a pilot-scale bubbling column reactor under ambient conditions was used to assess the technical feasibility of BaCO3 recovery in the ... Read more

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Browsing by Author "Zvimba, JN"

Browsing by Author "Zvimba, JN"

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