A5075287965- Soil and Water Nutrient Dynamics
- Hydrology and Watershed Management Studies
- Groundwater and Isotope Geochemistry
- Groundwater flow and contamination studies
- Water Quality and Pollution Assessment
- Mine drainage and remediation techniques
- Energy, Environment, Agriculture Analysis
- Peatlands and Wetlands Ecology
- Water Quality Monitoring Technologies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Environmental Conservation and Management
- Wastewater Treatment and Nitrogen Removal
- Urban Stormwater Management Solutions
- 3D Modeling in Geospatial Applications
- Soil and Unsaturated Flow
- Toxic Organic Pollutants Impact
- Water Systems and Optimization
- Flood Risk Assessment and Management
- Heavy metals in environment
- Constructed Wetlands for Wastewater Treatment
- Hydrogen's biological and therapeutic effects
- Environmental Science and Water Management
- Soil Carbon and Nitrogen Dynamics
- Financial Crisis of the 21st Century
- Arsenic contamination and mitigation
KWR Water Research Institute
2020-2024
Deltares
2009-2019
Utrecht University
2009-2016
United States Geological Survey
2007
Netherlands Organisation for Applied Scientific Research
2004-2007
In this paper, we outline several recent insights for the priorities and challenges future research reducing phosphorus (P) based water eutrophication in agricultural landscapes of Northwest Europe. We highlight that new efforts best be focused on headwater catchments as they are a key influence initial chemistry larger river catchments, here many management interventions most effectively made. emphasize lack understanding how climate change will impact P losses from landscapes....
Abstract. The retention of phosphorus in surface waters through co-precipitation phosphate with Fe-oxyhydroxides during exfiltration anaerobic Fe(II) rich groundwater is not well understood. We developed an experimental field set-up to study oxidation and P immobilization along the flow-path from into water agricultural catchment a small lowland river. physically separated tube drain effluent discharge before it entered ditch field. Through continuous measurements weekly quality sampling...
This study investigates the impact of future climate change on heavy metal (i.e., Cd and Zn) transport from soils to surface waters in a contaminated lowland catchment. The WALRUS hydrological model is employed semi-distributed manner simulate current fluxes Dommel catchment Netherlands. forced with projections simulated are used as input that simulates concentrations loads quickflow baseflow pathways. Metal under baseline ("2000-2010") ("2090-2099") conditions including scenarios for no...
Abstract. Many agriculture-dominated lowland water systems worldwide suffer from eutrophication caused by high nutrient loads. Insight in the hydrochemical functioning of embanked polder catchments is highly relevant for improving quality such areas or reducing export loads to downstream bodies. This paper introduces new insights sources and transport processes a Netherlands situated below sea level using high-frequency monitoring technology at outlet, where pumped into higher lake, combined...
Flanders (Belgium) Stormwater infiltration for managed aquifer recharge is increasingly recognized as a drought adaptation measure. Given the high degree of urbanization and imperviousness, stormwater has significant potential in (Belgium). This research presents novel approach to quantify availability its enhance groundwater recharge. volumes available are calculated based on imperviousness level, yearly average precipitation volumes, runoff coefficients. study focuses protection zones...
Leaching of nitrate from agricultural land to groundwater and the resulting pollution are a major environmental problem worldwide. Its impact is often mitigated in aquifers hosting sufficiently reactive reductants that can promote autotrophic denitrification. In case pyrite acting as reductant, however, denitrification associated with release sulfate also mobilization trace metals (e.g., arsenic). this study, transport modeling was used reconstruct, quantify analyze dynamics dominant...
Abstract Phosphorus (P) leaching from agriculture is a major driver of water eutrophication in downstream rivers and lakes. In drained lowland areas with intensive agriculture, reduction the fertilizer applications may be insufficient to improve quality short term as P accumulated soil during decades high fertilization continue for many years. A complementary approach reduce exports implement edge-of-field mitigation measures at farm scale. The selection effective requires detailed insight...
A spatially distributed model for leaching of Cd from the unsaturated zone was developed Belgian-Dutch transnational Kempen region. The uses as input land-use maps, atmospheric deposition data, and soil data is part a larger regional that simulates transport in soil, groundwater, surface water. new method deriving multiple sites validated using different wind directions. Leaching calculated period 1890 to 2010 reconstruction metal loads able reproduce spatial patterns concentrations...
Abstract. Many agriculture-dominated lowland water systems worldwide suffer from eutrophication caused by high nutrient loads. Insight in the hydrochemical functioning of embanked polder catchments is highly relevant for improving quality such areas. This paper introduces new insights sources and transport processes a low elevated Netherlands using high-frequency monitoring technology at outlet, where pumped into higher situated lake, combined with low-frequency program six locations within...
Abstract. The retention of phosphorus in surface waters though co-precipitation phosphate with Fe-oxyhydroxides during exfiltration anaerobic Fe(II) rich groundwater is not well understood. We developed an experimental field set-up to study oxidation and P immobilization along the flow-path from water agricultural catchment a small lowland river. physically separated tube drain effluent discharge before it entered ditch field. Through continuous measurements weekly quality sampling...