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BSc-MSc Thesis and Internship Projects, Wageningen University

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Exploring the toxicity of the truly dissolved fraction
Contaminant leaching from contaminated sites poses significant risks to the human health & environment. A proper understanding of the toxicity and mobility of these contaminants is needed to introduce suitable measures. One way in ...
Supervisor: Frank van Raffe
Department: Soil Chemistry and Chemical Soil Quality
 
Technological-critical Rare Earth Elements: Binding to iron-oxide nanoparticles
Introduction Rare earth elements (REE) are increasingly applied in modern society. Industries use REE in many high-technology devices, such as smart phones, digital cameras, fluorescent and light-emitting-diode (LED) lights, flat ...
Supervisor: Bert-Jan Groenenberg
Tjisse Hiemstra

Department: Soil Chemistry and Chemical Soil Quality
 
Delayed functionality of siderophores as iron carrier? Displacement of competing metals by iron from metal-siderophore complexes
Iron (Fe) is an essential micronutrient for plants and most microorganisms. Because the bioavailability of Fe in the external environment is often limited due the poor solubility of Fe(hydr)oxide minerals, organisms have developed ...
Supervisor: Walter Schenkeveld
Department: Soil Chemistry and Chemical Soil Quality
 
Micronutrient acquisition in extreme environments: the sodic soils of the Neusiedler See (AT)
Sodic soils are extreme environments with very high pH values (> 9) and salt concentrations, creating a niche for organisms that can survive under such conditions. The availability of cationic micronutrients like Fe, Cu, Zn and Mn ...
Supervisor: Walter Schenkeveld
Department: Soil Chemistry and Chemical Soil Quality
 
Quantifying the specific surface area of tropical soils
A successful application of surface complexation models (SCMís) to describe and predict the adsorption of ions to the soilís natural oxide fraction requires an accurate determination of the reactive surface area (A= m2/g soil) of  ...
Supervisor: Supervisor(s) Elise Van Eynde, Juan Carlos Mendez Fernandez
Department: Soil Chemistry and Chemical Soil Quality
 
Cadmium binding to manganese oxides: an overlooked process in quantifying its bioavailability
Cadmium (Cd) is a heavy metal that is toxic for humans and that regularly exceeds limits in agricultural products around the world, such as rice, potatoes and cacao. Understanding Cd behaviour in soils and uptake by crops is thus  ...
Supervisor: Wietse Wiersma, Liping Weng, Bert-Jan Groenenberg
Department: Soil Chemistry and Chemical Soil Quality
 
Struvite as an alternative for artificial phosphorus fertilisers?
In the Netherlands, we flush about 10 million kg of phosphorus (P) through our toilets each year, which is about double the amount of P used as artificial fertiliser. Phosphorus can be recovered from waste water as struvite (MgPO4 ...
Supervisor: Gerwin Koopmans (SOC) and Inge Regelink (WEnR)
Department: Soil Chemistry and Chemical Soil Quality
 
Enhanced wollastonite weathering: a CO2 negative liming practice? ‚Äď A pot experiment
Liming with carbonate minerals is an often used practice in agriculture to increase soil pH, thereby improving nutrient availability and soil structure, and consequently plant production. However, carbonate weathering can be an im ...
Supervisor: Emily te Pas, dr. Mathilde Hagens
Department: Soil Chemistry and Chemical Soil Quality
 
Development of a soil extraction to measure reactive molybdenum
Molybdenum (Mo) is one of the essential micronutrients for plants but can also be toxic when present in too high amounts. Up until now, there is little knowledge about the speciation of Mo in soils, and consequently about the impo ...
Supervisor: Elise van Eynde
Department: Soil Chemistry and Chemical Soil Quality
 
The effect of Zn and Cu fertilizer management on crop response evaluated by multi-surface modelling and soil extractions
The essential nutrients for crop growth can be divided into macro-and micronutrients, depending on the necessary quantity. There is growing evidence that the lack of crop growth response to regular NPK fertilizer often can be expl ...
Supervisor: Elise van Eynde
Department: Soil Chemistry and Chemical Soil Quality
 
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