A5014646651- Minerals Flotation and Separation Techniques
- Metal Extraction and Bioleaching
- Mine drainage and remediation techniques
- Extraction and Separation Processes
- Odor and Emission Control Technologies
- Wastewater Treatment and Nitrogen Removal
- Microbial bioremediation and biosurfactants
- Landfill Environmental Impact Studies
- Mineral Processing and Grinding
- Combustion and Detonation Processes
- Vehicle emissions and performance
- Calcium Carbonate Crystallization and Inhibition
- Heavy metals in environment
- Phosphorus and nutrient management
- Layered Double Hydroxides Synthesis and Applications
- Fuel Cells and Related Materials
- Polar Research and Ecology
- Sexuality, Behavior, and Technology
- Fire dynamics and safety research
- Microbial Community Ecology and Physiology
- Enzyme-mediated dye degradation
- Surgical Sutures and Adhesives
- Arsenic contamination and mitigation
- Indoor Air Quality and Microbial Exposure
- Water Treatment and Disinfection
Lhoist (Belgium)
2016-2023
Vale (Brazil)
2014
Mintek
2001-2010
BHP (Australia)
2004-2010
University of Johannesburg
2009
Technology Centre Prague
2009
Centre National de la Recherche Scientifique
2002
Observatoire Océanologique de Banyuls-sur-Mer
2002
University of the Free State
1997-2001
North-West University
2000
The presence of significant denitrification activity in an aerobic toluene-treating biofilter was demonstrated under batch and flow-through conditions. N2O concentrations 9.2 ppmv were produced by denitrifying bacteria the 15% acetylene, a system with bulk gas phase O2 concentration >17%. carbon source for not toluene but byproduct or metabolite catabolism. Denitrification conditions successfully used reduction 60 nitric oxide to 15 at flow rate 3 L min−1 (EBRT min) fully aerated, 17% v/v...
Calcium hydroxide (Ca(OH)2) and magnesium (Mg(OH)2) are promising fire suppressors because of their characteristics nontoxic, cost-effective, high suppression ability. In this work, a comprehensive study inhibition slaked lime dolime slurries, containing different ratios Ca(OH)2 Mg(OH)2, was implemented for the first time. A synchronised imaging system developed visualisation droplet evolution temporally. The chemical components were analysed by X-ray diffraction thermogravimetric analysis....
Journal Article Empirical model for the autotrophic biodegradation of thiocyanate in an activated sludge reactor Get access C.A. Du Plessis, Plessis Billiton Process Research, Randburg, South Africa C.A.du Private Bag X10014, Randburg 2125, (e‐mail: CaduPlessis@Billiton.co.za). Search other works by this author on: Oxford Academic Google Scholar P. Barnard, Barnard R.M. Muhlbauer, Muhlbauer K. Naldrett Letters Applied Microbiology, Volume 32, Issue 2, 10 February 2001, Pages 103–107,...
In this study the toluene removal efficiency of a composted pine bark biofilter was determined at loading rates ranging from 9.04 to 54.21 g m−3 h−1, retention times 0.25–3.0 min, and various bed heights. Toluene efficiencies exceeding 90% were obtained when subjected gas time in excess 0.32 min (19.2 s) below 42 h−1. The data used develop an empirical model. model successfully described overall with R2 value 0.98. influence oxygen concentration on also evaluated. Reduced performance...
Agitated bacterial tank bioleaching reactors are currently sparged with air to satisfy both oxygen and CO(2) requirements of microbial cells. Under high-sulphide loading conditions, as is the case high-grade metal sulphide concentrates, chemical demand for significantly increased during process. Sparging enriched gas may offer an alternative process option agitation aeration, overcome mass transfer difficulties at elevated temperatures where thermophilic Archaea, rather than Bacteria, used....
AME Aquatic Microbial Ecology Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsSpecials 28:257-265 (2002) - doi:10.3354/ame028257 Seasonal changes in microbial biomass first-year ice of Terre Adélie area (Antarctica) Daniel Delille1,*, Michel Fiala1, Jorma Kuparinen2, Harri Kuosa2, Charles Plessis1 1Observatoire Océanologique, Université P. et M. Curie, UMR-CNRS 7621, 66651 Banyuls-sur-mer cedex, France...
The production of alumina (Al2O3) from bauxite via the Bayer process is underpinned by use lime in a variety reactions. One most important causticisation liquors, which used to convert soluble sodium carbonate into caustic, i.e. hydroxide. Causticisation complicated unproductive side reactions with aluminate that limit both extent and efficiency use. Substantial industrial effort literature has been devoted optimising parameters (e.g. temperature, reaction time, liquor concentrations,...