METHOD FOR RETAINING CATIONS

The invention relates to a method for retaining cations within a calcium silicate hydrate CSH matrix, said cations being contained in water to be treated, wherein: a solid anhydrous mixture made up of at least slaked lime Ca(OH)2 and nanometric silica (SiO2) is used as a precursor of said calcium si...

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Bibliographische Detailangaben
Hauptverfasser:	REGIS, Robert, BORE, Christian, CAMBON, Martine, CAMBON, Olivier
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY DYES EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POLISHES SOIL SHIFTING THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE UNDERGROUND OR UNDERWATER STRUCTURES
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Beschreibung
Zusammenfassung:	The invention relates to a method for retaining cations within a calcium silicate hydrate CSH matrix, said cations being contained in water to be treated, wherein: a solid anhydrous mixture made up of at least slaked lime Ca(OH)2 and nanometric silica (SiO2) is used as a precursor of said calcium silicate hydrate CSH matrix; characterised in that: said anhydrous mixture is hydrated with said water to be treated containing the cations until synthesising said calcium silicate hydrate matrix, said matrix being provided in the form of a calcium silicate hydrate gel internalising and retaining said cations.