METHOD FOR PHYTO-REPARING THE SOILS POLLUTED WITH HEAVY METALS

The invention relates to a method for repairing a soil polluted with heavy metals. According to the invention, the method consists in the fact that the soil, polluted with lead, copper and zinc in a concentration of 500 mg of metal/ kg of dry soil, is treated with agents for mobilizing heavy metals...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ULMANU MIHAELA, ANGER ILDIKO, PLOPEANU GEORGIANA, GAMENT EUGENIA
Format:	Patent
Sprache:	eng ; rum
Schlagworte:	ADHESIVES CHEMISTRY DISPOSAL OF SOLID WASTE DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PERFORMING OPERATIONS POLISHES RECLAMATION OF CONTAMINATED SOIL RECLAMATION OF CONTAMINED SOIL SOIL TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention relates to a method for repairing a soil polluted with heavy metals. According to the invention, the method consists in the fact that the soil, polluted with lead, copper and zinc in a concentration of 500 mg of metal/ kg of dry soil, is treated with agents for mobilizing heavy metals of the ethylenediamino-tetraacetic acid and nitrilotriacetic acid type, in a molar ratio of 0.25...3 mmol mobilization agent : kg soil, afterwards maize is sown for extracting heavy metals from the treated soil, there resulting an extraction efficiency of 1.22...8.61%.