Iron reducing bacteria Carbonate Estuary Binding Colonne du sol Natural organic matter ArsenicIII Complexation Fer Acide humique Métaux Expérimentation Actinides PHREEQC-Model VI Speciation Bactéries ferriréductrices Gabon Nanoparticles NanoSIMS Identification Soil PHREEPLOT Massif Central Colloïdes DOC Mount Cameroon Column of soil Groundwater Iron oxide Trace elements Dissolved organic matter Geochemistry Metals Hydrology IronII EXAFS Leaching Colloids Nanoplastics Fe oxyhydroxides Fecal contamination Carbon Spéciation Biogeochemistry Modeling Model VI MID-WALES Brittany GEOF Organic matter Humic acid Hydromorphic soil Biogéochimie Rare earth elements Humic substances Competition Modélisation Colloid Aggregation Bacteria Sorption Riparian wetland Bio-mineralization Géochimie Oxyde de fer Carbone Carbonifère Ce anomaly Magnetite nanoparticles REE Permien Aluminium Matière organique Fecal stanols Agricultural catchment Dissolved organic carbon PHREEQC Fe Characterization Environment Arsenic Ultrafiltration Palaeoenvironment Nanoparticules Reductive dissolution Wetland Terres rares Bioreduction Bio-minéralisation Iron Bio-dissolution Organic carbon HYDROLOGIE Adsorption Natural waters Nitrogen Sol Redox PH Ionic strength