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Dijkstra, J.J. (author), Spijker, J. (author), Groenenberg, B.J. (author), Comans, R.N.J. (author), Energieonderzoek Centrum Nederland (author)"Since the industrial revolution, Dutch soils have gradually been diffusely contaminated by human activities like industry, agriculture and road traffic. Nevertheless, most soils comply with the threshold levels of the Dutch Soil Quality Decree. However, in the long term (several hundreds of years) underneath (diffusely) contaminated soils the...report 2015
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van Zomeren, A. (author), Dijkstra, J.J. (author), Meeussen, J.C.L. (author), Comans, R.N.J. (author)ECN Project for IWM – contents and goal “Impact assessment”: from test result to release criteria using geochemical models Example for Construction products in the Dutch Soil Quality Decree (SQD) Currently also involved in emission criteria for sustainable landfills, dredged sediments, contaminated soils in deep lakes. How can we use these...public lecture 2015
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van Zomeren, A. (author), Dijkstra, J.J. (author), comans, R.N.J. (author), Brand, E. (author), Scharff, H. (author), Energieonderzoek Centrum Nederland (author)Landfill regulations with respect to ending aftercare often mention that no threat to human health and the environment should remain. This statement needs to be translated into emission criteria for which compliance can be demonstrated before competent authorities can decide on ending aftercare. Various approaches are proposed or under...conference paper 2015
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van Zomeren, A. (author), Dijkstra, J.J. (author), Comans, R.N.J. (author), Groenenberg, B.-J. (author), Energieonderzoek Centrum Nederland (author)Geochemical modelling is increasingly being used in the characterization and environmental risk assessment of contaminated materials that are produced and/or applied in urban areas. While geochemical models are mostly developed and tested for specific types of materials, their performance is strongly determined by the specific modelling approach...conference paper 2015
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van Zomeren, A. (author), Dijkstra, J.J. (author), Energieonderzoek Centrum Nederland (author)"Dit rapport bevat resultaten van modelberekeningen die zijn uitgevoerd door ECN om het risico in te schatten van bodem- en grondwaterverontreiniging, in het geval dat er uitstel wordt verleend bij het aanleggen van een bovenafdichting op enkele stortvakken (0 t/m 5) van de stortplaats Kanaaldijk (Sortiva). Het RIVM heeft hiervoor informatie...report 2015
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Energieonderzoek Centrum Nederland (author), Dijkstra, J.J. (author)Im Fokus der Untersuchungen zum Thema 'Beregnete Fassaden' steht die Frage, welche Stoffe bei Regen aus Putz gelost werden, in die Umwelt gelangen und unter Umstanden schadliche Auswirkungen haben. Derart gross angelegte Versuche habe es bisher in Eurpa nicht gegeben, so der Verband. Entsprechend hoch sei die Aufmerksamkeit.article 2015
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van Zomeren, A. (author), Scharff, H. (author), Dijkstra, J.J. (author), Meeussen, J.C.L. (author), van der Sloot, H.A. (author), comans, R.N.J. (author)In this chapter, geochemical speciation modelling is used to determine important chemical processes that determine the release of contaminants from waste materials in short and long term. Moreover, model calculations are performed to show the sensitivity of the waste mixture to changes in the contaminant availability and binding capacity by...bookPart 2014
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Dijkstra, J.J. (author), Meeussen, J.C.L. (author), Schröder, T.J. (author), Energieonderzoek Centrum Nederland (author)Migration rates of (radioactive) contaminants in porous materials, such as soil rock and concrete, are dominated by distribution of ions over pore solution and solid phase. Precipitation and adsorption are small-scale chemical processes that determine the distribution and in this way control migration rates at larger scales. The often...conference paper 2014
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Dijkstra, J.J. (author)About ECN What is contaminant leaching? Our approach and activities: highlights and examples Important processes, findings Laboratory test development and standardization Model development to predict leaching in practice Applications of our research: tools and know-how for the industry and government Who are our clients What makes the ECN...public lecture 2014
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van Zomeren, A. (author), Dijkstra, J.J. (author), Koper, R. (author), Comans, R.N.J. (author)Environmental limit values for emissions to soil and groundwater ?Dutch Soil Quality Decree (2007) Validate assumptions on HA/FA concentrations in modelling Rapid batch method available: consistent with IHSS methods, suitable for both solid and aqueous samples Change DOC analyses from “combustion method” to “chemical oxidation method”public lecture 2014
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van Zomeren, A. (author), Dijkstra, J.J. (author), comans, R.N.J. (author), Energieonderzoek Centrum Nederland (author)Geochemical modelling is increasingly being used in both scientific research and environmental risk assessment of contaminated materials. In this presentation an overview will be given of the development of a generic multi-surface geochemical modelling approach, to describe the speciation and solid/liquid partitioning (leaching) of major and...conference paper 2014
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van Zomeren, A. (author), Dijkstra, J.J. (author), comans, R.N.J. (author), Energieonderzoek Centrum Nederland (author)Geochemical modelling is increasingly being used in both scientific research and risk assessment regarding the environmental properties of contaminated materials. The performance and reliability of model predictions are strongly determined by the specific modelling approach, as well as by the applied methodologies to estimate the necessary model...conference paper 2014
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Dijkstra, J.J. (author), Claessens, J.W. (author), comans, R.N.J. (author), Brand, E. (author), de Nijs, T. (author), Lieste, R. (author), Energieonderzoek Centrum Nederland (author)Sinds de jaren negentig wordt internationaal onderzoek verricht naar duurzaam stortbeheer. Het idee hierachter is dat de bron, de stortplaats zelf, schoner wordt, zodat er minder verontreinigingen uit de stortplaatsen kunnen weg lekken. Op deze manier worden de bodem en het nabijgelegen grondwater beschermd. Tot nu toe zijn er nog geen...report 2014
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Energieonderzoek Centrum Nederland (author), Dijkstra, J.J. (author), comans, R.N.J. (author), Brand, E. (author), d. Nijs, T. (author)-article 2014
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van Zomeren, A. (author), Dijkstra, J.J. (author), Spijker, J. (author), Mesman, M. (author), Eikelboom, R. (author)The enforcement of the European Construction Products Directive (and the more actual Construction Products Regulation) (1, 2) has led to the development of European harmonised standards for assessment of the emission of dangerous substances߿ݠfrom construction materials. According to Basic Working Requirement (BWR) number 3, the emissions from...other 2013
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van Zomeren, A. (author), Dijkstra, J.J. (author), Susset, B. (author), Energieonderzoek Centrum Nederland (author)"1. Introduction and inducement Within CEN TC 351 WG 1, standardized, horizontal test methods are developed to assess the release (leaching) of dangerous substances from construction as defined in ER3 of the CPD. For granular materials TS 3, a horizontal up-flow percolation test, was further developed by CEN TC 351 WG1 and will enter the...report 2013
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van Zomeren, A. (author), Dijkstra, J.J. (author)xreport 2013
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van Zomeren, A. (author), Dijkstra, J.J. (author), Rocca, S. (author), Costa, G. (author), Lombardi, F. (author), comans, R.N.J. (author)The focus of this study was to identify the main compounds affecting the weight changes of bottom ash (BA) in conventional loss on ignition (LOI) tests and to obtain a better understanding of the individual processes in heterogeneous (waste) materials such as BA. Evaluations were performed on BA samples from a refuse derived fuel incineration ...article 2013
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van Zomeren, A. (author), Dijkstra, J.J. (author), Energieonderzoek Centrum Nederland (author)European regulations on CE marking of construction products are presently harmonized with respect to requirements on the potential release of “dangerous substances” to the environment. In order to judge the potential release of dangerous substances, laboratory tests are developed and standardized. In the EU standardization committee TC 351, a...report 2013
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van Zomeren, A. (author), Dijkstra, J.J. (author), Claessens, J.W. (author), comans, R.N.J. (author), Brand, E. (author), Energieonderzoek Centrum Nederland (author)SUMMARY: Recently, a project has been started in the Netherlands to investigate whether source-oriented treatment techniques over a period of one or more decades will lead to a significant reduction in emission potential of a number of pilot landfills. In order to judge whether the leaching of contaminants from a treated landfill has reached an...conference paper 2013