Objetivo DEVELOPMENT AND TESTING OF A MULTI COMPONENT BINDING MODEL OF POLLUTING IONS TO SOIL ORGANIC MATTER, TAKING INTO ACCOUNT SITE HETEROGENEITY AND ELECTROCHEMICAL EFFECTS. FOR THE PREDICTION OF THE BINDING OF INORGANIC POLLUTANTS TO DIFFERENT SOILS IT IS NECESSARY TO ESTABLISH FUNDAMENTAL RELATIONS THAT DESCRIBE THE BINDING BEHAVIOUR AS A FUNCTION OF ENVIRONMENTAL FACTORS SUCH AS PH, SALT CONTENT, CONCENTRATION COMPETITOR IONS AND AS A FUNCTION OF REACTIVE SOIL COMPONENTS SUCH AS SOIL ORGANIC MATTER, CLAY AND METAL-OXIDES. FOR CLAY AND METAL-OXIDES FUNDAMENTAL MODELS HAVE BEEN DEVELOPED AND THERE IS A REASONABLE UNDERSTANDING ON THE INTERACTION OF THESE SORBENTS WITH POLLUTING IONS. IN THE CASE OF SOIL ORGANIC MATTER SUCH INSIGHT IS STILL VERY LIMITED AND NO SATISFACTORY OR GENERALLY APPLICABLE MODELS EXIST. IN ORDER TO BE ABLE TO MODEL THE COMPETITIVE BINDING OF IONS OVER A WIDE RANGE OF RELEVANT CONDITIONS SUCCESSFULLY, IT IS ESSENTIAL TO DISCRIMINATE BETWEEN INTRINSIC SITE HETEROGENEITY AND SURFACE CHARGE EFFECTS ON THE BINDING BEHAVIOUR. IN PREVIOUS WORK EXPERIENCE HAS BEEN GAINED WITH MODELING COMPETITIVE BINDING OF IONS TO VARIABLY CHARGED HETEROGENEOUS METAL-OXIDES. BASED ON THIS ESPERIENCE AND EXTENSIVE LITERATURE RESEARCH A MULTI-COMPONENT BINDING MODEL FOR SOIL ORGANIC MATTER WILL BE DEVELOPED, TAKING SITE HETEROGENEITY AND ELECTROCHEMICAL ASPECTS INTO ACCOUNT. THE MODEL WILL FIRST BE TESTED USING LITERATURE DATA FOR FULVIC ACIDS, HUMIC ACIDS AND SYNTHETIC POLYELECTROLYTES. TO TEST THE MODEL THOROUGHLY FOR CONDITIONS RELEVANT IN THE SOIL SOLUTION AN EXTENSIVE DATA SET HAS TO BE OBTAINED BY CAREFULLY EXPERIMENTATION. Ámbito científico natural scienceschemical scienceselectrochemistry Programa(s) FP1-ENVPROT 4C - Multiannual research and development programmes (EEC) in the field of the environment - Protection of the environment -, 1986-1990 Tema(s) Data not available Convocatoria de propuestas Data not available Régimen de financiación CSC - Cost-sharing contracts Coordinador WAGENINGEN UNIVERSITY Aportación de la UE Sin datos Dirección Costerweg 50 WAGENINGEN Países Bajos Ver en el mapa Enlaces Sitio web Opens in new window Coste total Sin datos Participantes (1) Ordenar alfabéticamente Ordenar por aportación de la UE Ampliar todo Contraer todo NERC British Geological Survey Reino Unido Aportación de la UE Sin datos Dirección Maclean Building Crowmarsh Gifford OX10 8BB Wallingford Ver en el mapa Coste total Sin datos