A5039810630- Heavy metals in environment
- Hydrology and Watershed Management Studies
- Flood Risk Assessment and Management
- Mining and Resource Management
- Water resources management and optimization
- Geochemistry and Geologic Mapping
- Heavy Metal Exposure and Toxicity
- Remote Sensing in Agriculture
- Land Use and Ecosystem Services
- Mine drainage and remediation techniques
- Hydropower, Displacement, Environmental Impact
- Groundwater and Watershed Analysis
- Geological formations and processes
- Plant Water Relations and Carbon Dynamics
- Child Nutrition and Water Access
- Geological and Geophysical Studies
- Water Quality and Pollution Assessment
- Fish Ecology and Management Studies
- Urban and Rural Development Challenges
- Hydrology and Sediment Transport Processes
- Groundwater and Isotope Geochemistry
- Conservation, Biodiversity, and Resource Management
- Hydrocarbon exploration and reservoir analysis
- Transboundary Water Resource Management
- Hydrology and Drought Analysis
University of Zambia
2015-2024
Copperbelt University
2024
University Teaching Hospital
2012
Colorado School of Mines
2005
Carleton University
1999
University of Ottawa
1999
National Institute of Infectious Diseases
1989
Abstract. Spanning over 3000 km in length and with a catchment of approximately 1.4 million km2, the Zambezi River is fourth largest river Africa flowing into Indian Ocean from African continent. We present data on greenhouse gas (GHG: carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O)) concentrations fluxes, as well that allow for characterization sources dynamics pools collected along River, reservoirs several its tributaries during 2012 2013 two climatic seasons (dry wet) to...
Abstract The present study investigated biosorption of Pb (II) and Zn using a heavy metal tolerant bacterium Oceanobacillus profundus KBZ 3-2 isolated from contaminated site. effects process parameters such as effect on bacterial growth, pH initial lead ion concentration were studied. results showed that the maximum removal percentage for was 97% at an 50 mg/L whereas 54% 2 obtained 6 30 °C. bacteria found to sequester both in extracellular polymeric substance (EPS). EPS facilitates exchange...
Wetlands are among the most productive natural ecosystems globally, providing crucial ecosystem services to people. Regrettably, a substantial 64% –71% of wetlands have been lost worldwide since 1900, mainly due changes in land use and cover (LULC). This issue is not unique Zambia's Bangweulu Wetland System (BWS), which faces similar challenges. However, there limited information about LULC BWS. Furthermore, finding accurate cost-effective methods understand dynamics complicated by multitude...
The rapid development of free and open-access hydrological models coupling framework tools continues to present more opportunities for coupled model improved assessment floodplain hydrology. In this study, we set up an Upper Zambezi a fully spatially hydrological-hydrodynamic the Barotse Floodplain using GLOFRIM (GLObally applicable computational FRamework Integrated hydrological–hydrodynamic Modelling). hydrodynamic used are WFLOW LISFLOOD-FP, respectively. simulated flows generated by...
Zinc plant leach residues (ZPLRs) contain significant amounts of metal compounds lead (Pb), zinc (Zn), iron (Fe), etc., hence, they are considered as a secondary source metals. On the other hand, ZPLRs regarded hazardous materials because heavy metals that pollute environment. Resources and environmental concerns were addressed in this study by removing/recovering Pb Zn using concurrent dissolution cementation technique. To cement dissolved leaching pulp, zero-valent aluminum (ZVAl) was...
The former Pb–Zn mining town of Kabwe in central Zambia is ranked amongst the worst polluted areas both Africa and world. fine dust particles from ISF Waelz slags deposited represent a health risk for local population. Here, we combined detailed multi-method mineralogical investigation with oral bioaccessibility testing simulated gastric fluid (SGF; 0.4 M glycine, pH 1.5, L/S ratio 100, 1 h, 37 °C) to evaluate related incidental ingestion. slag fractions contain up 2610 mg/kg V, 6.3 wt% Pb...
Waste materials such as metallurgical slags can be considered potential resources of valuable elements, including technologically critical metals. Copper from Luanshya, the oldest mining and smelting site in Zambian Copperbelt, produced by local Cu ores reverberatory furnaces between 1932 1999, were deposited on two large dumps vicinity former ore processing area. The exhibit high concentrations Co (247–5990 ppm, median: 2370 ppm) (1320–95,300 8550 ppm). This multi-method mineralogical...
In this article, we call for more attention to the national and local politics of climate change in developing countries, contribute through a study adaptation interventions Zambia. We show how such form part central state efforts extend authority control over natural resources, competing institutional actors as governments chiefs seek counter this. The article thereby shows is emerging new arena deep-seated political struggles issues authority, land devolution development.
The annually flooded Barotse Floodplain in the upper Zambezi River Basin Western Province of Zambia, Southern Africa. Discharge variability plays a significant role inundation extent and thus it controls habitat conditions river channels linked wetlands. linkage between discharge allowed us to analyse trends overtime using optical satellite imagery MODIS. Desert Flood Index, surface water extraction algorithm, was used generate time series extent. For validation we flood mask extracted from...
Massive amount of highly contaminated mining residual materials (MRM) has been left unattended and leached heavy metals, particularly lead (Pb) zinc (Zn) to the surrounding environments. Thus, performance three immobilizers, raw dolomite (RD), calcined (CD), magnesium oxide (MO), was evaluated using batch experiments determine their ability immobilize Pb Zn, from MRM. The addition immobilizers increased leachate pH decreased amounts dissolved Zn different extents. followed following trend:...
Hydropower dams along with urban and agricultural land-use changes are altering surface water quality in the Zambezi River Basin, Zambia. Field data reveal local impacts point to monitoring needs for safeguarding resources under pressure.