Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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    Theory and application of landfarming to remediate polycyclic aromatic hydrocarbons and mineral oil-contaminated sediments: beneficial reuse
    Harmsen, J. ; Rulkens, W.H. ; Sims, R.C. ; Rijtema, P.E. ; Zweers, A.J. - \ 2007
    Journal of Environmental Quality 36 (2007)4. - ISSN 0047-2425 - p. 1112 - 1122.
    organic-compounds - pahs - biodegradation - carbon
    When applying landfarming for the remediation of contaminated soil and sediment, a fraction of the soil-bound contaminant is rapidly degraded; however, a residual concentration may remain, which slowly degrades. Degradation of polycyclic aromatic hydrocarbons (PAHs) and mineral oil can be described using a multi-compartment model and first-order kinetics, in which three degradable fractions are distinguished; (1) rapid, (2) slowly, and (3) very slowly degradable. Using this model populated with data from long-term experiments (initiated in 1990), it is shown that time frames from years to decades can be necessary to clean the soil or sediment to obtain a target below regulatory guidelines. In passive landfarms without active management, three principal potentially limiting factors can be identified: (1) availability of appropriate microorganisms, (2) supply of oxygen for the biodegradation process, and (3) bioavailability of the pollutants to the microorganisms. Bioavailable PAHs and mineral oil are readily biodegradable contaminants under aerobic conditions, and presence and activity of microorganisms are not problems. The other two factors can be limiting and are theoretically described. Using these descriptions, which are in agreement with field experiments of 10 to 15 yr, it is shown if and when optimization of the biodegradation process is an option. Because a long time period is necessary to degrade the slowly and very slowly degradable fractions, passive landfarming should be combined with beneficial use of the land area. Examples include the development of natural environments, use in constructions, growing of biomass for energy production, including biofuels, and use as cover for landfills
    Modeling of limiting conditions in passive landfarms for dredged sediments
    Rulkens, W.H. ; Harmsen, J. ; Rijtema, P.E. ; Sims, R.C. - \ 2005
    In: Proceedings of the eighth international In situ and on-site bioremediation symposium. - Columbus OH (USA) : Battelle - ISBN 9781574771527 - p. P02 - P02.
    Modelling of limiting conditions in passive landfarms for dredged sediments
    Rulkens, W.H. ; Fassotte-Harmsen, L. ; Rijtema, P.E. - \ 2005
    Environmental impact of land use in rural regions; the development, validation and application of model tools for management and policy analysis
    Rijtema, P.E. ; Groenendijk, P. ; Kroes, J.G. - \ 1999
    London : Imperial College Press (Series on environmental science and management 1) - ISBN 9781860940415 - 321
    grondwater - besmetting - bodemwater - onverzadigde stroming - voedingsstoffen - transportprocessen - modellen - opgeloste stof - gewasproductie - kunstmeststoffen - groundwater - contamination - soil water - unsaturated flow - nutrients - transport processes - models - solutes - crop production - fertilizers
    Regional approaches to water pollution in the environment
    Rijtema, P.E. ; Eliás, V. - \ 1996
    Dordrecht : Kluwer (NATO ASI Ser. 2: Environment 20) - 328 p.
    The book gives the main lectures of a NATO workshop dealing with aspects of regional modelling and practical experiences concerning pollution problems related to industrial, agricultural, municipal and former military sites. Special emphasis is given on the Black Triangle in Central Europe, because of high emissions of sulphuric and nitrogen compounds and the extent of large-scale environmental damages, due to intensive brown-coal mining for energy-producing works and industries with obsolete technologies. The possible adverse health effects and the high costs of controlling pollution and the required networks for emission control are discussed.
    Regional approaches to water pollution
    Rijtema, P.E. ; Bolt, F.J.E. van der - \ 1996
    In: Regional approaches to water pollution in the environment / Rijtema, P.E., Eliás, V., - p. 1 - 20.
    General aspects of regional modelling of environmental impacts of non-point sources of pollution are discussed. Models range from simple budget to very complex structural models. In groundwater pollution studies structural models are preferable. The choice of the model depends on the aim of the research, the scale of the research area and the availability of input data. The degree of process aggregation in the models increases (complexity decreases) when the research aim is less, when the availability of data decreases, and the spatial units become larger. Results of two regional studies are given, one dealing with nutrient pollution in a small river catchment and the other with effects of atmospheric acid deposition on a European scale.
    Evaluation of the relation between groundwater pollution and the pollutant load on surface waters
    Groenendijk, P. ; Roest, C.W.J. - \ 1996
    In: Regional approaches to water pollution in the environment / Rijtema, P.E., Eliás, V., - p. 173 - 193.
    The importance of the relation between groundwater and surface water is demonstrated by the impact of water quality standards on permissible nitrogen losses at farm level. The effects of the intended fertilization reduction measures on agricultural production justify a thorough examination of the relationship between environmental compartments. Mathematical models can play an important role in assessing pollution and predicting effects of measures. The dependence of surface water contamination on groundwater discharge necessitates a sound description of this relation in a regional simulation model. Outlines of the linear systems approach and the discharge layer approach in the ANIMO model are presented.
    TRANSOL, a dynamic simulation model for transport and transformation of solutes in soils
    Kroes, J.G. ; Rijtema, P.E. - \ 1996
    Wageningen : SC-DLO (Report 103) - 75 p.
    The dynamic simulation model TRANSOL has been developed to fulfil the need for a tool to analyse leaching of solutes from the soil surface to groundwater and surface waters. A description is given of the modelled processes: conversion, formation, cropuptake, precipitation, equilibrium and non-equilibrium sorption. The model is evaluated with a test on measured field data, an uncertainty analysis and a verification on an analytical solution.
    Stofstromen in het landelijk gebied : bijdragen aan het afscheidssymposium van dr. ir. P.E. Rijtema op 16 december 1994
    Drent, J. ; Rijtema, P.E. - \ 1994
    Wageningen : DLO-Staring Centrum (Rapport / DLO-Staring Centrum 365) - 103
    bodem - uitspoelen - rivieren - waterlopen - kanalen - water - oppervlaktewater - waterverontreiniging - waterkwaliteit - landbouw - soil - leaching - rivers - streams - canals - water - surface water - water pollution - water quality - agriculture
    De invloed van enige bemestingsscenario's op de afvoer van stikstof en fosfor naar het oppervlaktewater in Nederland
    Kroes, J.G. ; Roest, C.W.J. ; Rijtema, P.E. - \ 1990
    Wageningen : Staring Centrum (Rapport / Staring Centrum 55) - 170
    dierlijke meststoffen - kanalen - derivaten - afvoer - hydrologie - uitspoelen - modellen - nitraten - stikstof - fosfaten - fosforpentoxide - onderzoek - rivieren - oppervlakkige afvoer - bodem - waterlopen - oppervlaktewater - water - waterverontreiniging - waterkwaliteit - animal manures - canals - derivatives - discharge - hydrology - leaching - models - nitrates - nitrogen - phosphates - phosphorus pentoxide - research - rivers - runoff - soil - streams - surface water - water - water pollution - water quality
    Nitraatbelasting van het grondwater in het Zuidoosten van Noord-Brabant
    Drent, J. ; Kroes, J.G. ; Rijtema, P.E. - \ 1988
    Wageningen : I.C.W. (Rapporten / Instituut voor Cultuurtechniek en Waterhuishouding ) - 68
    analogen - stalmest - grondwaterverontreiniging - hydrologie - uitspoelen - wiskundige modellen - modellen - nitraten - verontreinigingsbeheersing - preventie - bescherming - verwijdering - onderzoek - bodem - waterkwaliteit - Nederland - noord-brabant - analogues - farmyard manure - groundwater pollution - hydrology - leaching - mathematical models - models - nitrates - pollution control - prevention - protection - removal - research - soil - water quality - Netherlands - noord-brabant
    The nitrate conflict between municipal water supply and agriculture the nimwag model
    Rijtema, P.E. ; Hoeijmakers, T.J. ; Kroes, J.G. - \ 1987
    Wageningen : ICW (Nota / Instituut voor Cultuurtechniek en Waterhuishouding 1423) - 37
    grondwaterstroming - watervoorziening - putten - watervoerende lagen - nitrificatie - denitrificatie - mest - infiltratie - modellen - groundwater flow - water supply - wells - aquifers - nitrification - denitrification - manures - infiltration - models
    This description of the NIMWAG model has the same sequence as the computer program. The NIMWAG model calculates N03-N concentrations in the water extracted by a deep well. The model has been made operationel to execute calculations for 166 extraction areas. For each extraction area calculations have been made for 16 different fertilization alternatives. The model can be divided into 3 parts: a part with hydrological calculations, a part with fertilization calculations and a part to calculate the N03-N concentrations. The hydrological part is explained and calculates the spread of the feed in the extraction area and the residence times of the infiltrating precipitation excess. The fertilization level is calculated in dependence to the landuse in the extraction area and to the chosen fertilization alternative. The calculations of N03-N loads in the groundwater caused by the inflow of nitrate into the saturated zone and the denitrification in the saturated zone are explained.
    Reuse of drainage water model, calculation method of real evapotranspiration
    Khalik, M.A.A. ; Roest, C.W.J. ; Rijtema, P.E. - \ 1986
    Wageningen : ICW (Nota / Instituut voor Cultuurtechniek en Waterhuishouding no. 1710) - 38
    beschikbaar bodemwater - drainagewater - egypte - evapotranspiratie - hydrologie - irrigatie - modellen - onderzoek - hergebruik van water - verwelkingspunt - available water - drainage water - egypt - evapotranspiration - hydrology - irrigation - models - research - water reuse - wilting point
    Reuse of drainage water model : calculation method of drainage water and watertable depth
    Roest, C.W.J. ; Rijtema, P.E. ; Abdel Khalik, M.A. - \ 1986
    Wageningen : ICW (Nota / Instituut voor Cultuurtechniek en Waterhuishouding no. 1723) - 18
    drainage - drainagewater - irrigatie - hergebruik van water - grondwaterspiegel - egypte - drainage - drainage water - irrigation - water reuse - water table - egypt
    The main objective of the project is to assist the Ministry of Irrigation in Egypt in the planning of future watermanagement strategies incorporating reuse of drainage water practices. In order to achieve this main objective a comprehensive measurement programme has been initiated and a mathematical model is being formulated for the prediction of future effects of different watermanagement strategies. In the model approach the agricultural crop and its reaction to different watermanagement practices is of prime importance. A separate model has been formulated to calculate the irrigation water distribution between the subarea's distinguished in the Nile Delta.
    Onderzoek naar de waterbalans van vuilstortplaatsen
    Rijtema, P.E. ; Roest, C.W.J. ; Pankow, J. - \ 1986
    Wageningen : I.C.W. (Rapporten / Instituut voor Cultuurtechniek en Waterhuishouding no. 19) - 95
    stortterreinen - uitspoelen - huisvuilverwijdering - vuilnisbelten - bodem - bodemwaterbalans - afvalverwijdering - afvalstortplaatsen - landfills - leaching - municipal refuse disposal - refuse tips - soil - soil water balance - waste disposal - waste disposal sites
    De potentiele verdamping van (half-) natuurlijke vegetaties
    Jansen, P.C. - \ 1986
    Wageningen : ICW (Nota / Instituut voor Cultuurtechniek en Waterhuishouding 1703) - 35
    evapotranspiratie - natuurlijke graslanden - natuurgebieden - transpiratie - vegetatie - bossen - evapotranspiration - natural grasslands - natural areas - transpiration - vegetation - forests
    De methoden om de verdamping van een vegetatie te bepalen zijn meestal ontwikkeld ten behoeve van de landbouw. Deze methoden zijn in principe ook geschikt voor toepassing voor gebieden met min of meer natuurlijke begroeiingen. De vaak complexe vegetatiestructuur maakt dat een aantal methoden minder geschikt zijn, of dat in het geval van formules de benodigde vegetatie-specifieke factoren niet of nauwelijks bekend zijn, of dat deze moeilijk te bepalen zijn. Voor drie van dergelijke formules zijn parameters en vegetatiefactoren verzameld. Dit betreft de formules van Penman, Priestley en Taylor en die van Rijtema/Monteith. Naast een bespreking van de voor- en nadelen van deze formules zijn in een rekenvoorbeeld van elk van de drie formules voor zowel een blauwgrasland als ook voor een loofbos verdampingsberekeningen uitgevoerd.
    Some aspects of crop salt tolerance and water management
    Rijtema, P.E. ; Guindi, S. El - \ 1986
    Wageningen : ICW (Nota / Institute for Land and Water Management Research 1724) - 20
    akkerbouw - veldgewassen - planten - irrigatiewater - zout water - verzilting - natrium - bodem - toxinen - waterkwaliteit - oogstverliezen - opbrengsten - zouttolerantie - arable farming - field crops - plants - irrigation water - saline water - salinization - sodium - soil - toxins - water quality - yield losses - yields - salt tolerance
    lrrigation is necessary for intensive erop production in arid and semi-arid areas and may be used to supplement rainfall in temperate and tropical areas. During and immediately following periods of rainfall or irrigation water moves downwards through the soil to the water table. At other times water losses through evapotranspiration may reverse the direction of flow in the soil, so that water moves up from the watertable by capillary rise. Evapotranspiration removes pure water from the soil leaving salts behind.
    Vluchtige organische chemicalien. Hoofdstuk D4910.
    Keizer, M.G. - \ 1986
    In: Handboek voor Milieubeheer IV. Bodembescherming
    Calculation of drainage water quantity and depth water tables in delta areas with seepage and leakage
    Rijtema, P.E. ; Abdel Khalik, M.A. - \ 1985
    Wageningen : ICW (Nota / Instituut voor Cultuurtechniek en Waterhuishouding no. 1637) - 15
    drainagewater - irrigatie - drainage door leidingen - buisdrainage - hergebruik van water - grondwaterspiegel - drainage water - irrigation - pipe drainage - tile drainage - water reuse - water table
    Formulation for the irrigation water distribution model in the Nile Delta
    Rijtema, P.E. ; Boels, D. - \ 1985
    Wageningen : ICW (Nota / Instituut voor Cultuurtechniek en Waterhuishouding no. 1639) - 34
    drainagewater - egypte - irrigatie - irrigatiewater - modellen - onderzoek - transport - waterverdeling - hergebruik van water - drainage water - egypt - irrigation - irrigation water - models - research - transport - water distribution - water reuse
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