Recovering metals from soil

The invention relates to recovering metals, such as nickel and cobalt, by phytomining or phytoextracting soils rich in metals wherein the desired metal is selectively accumulated in hyperaccumulator plants by adjusting the soil pH. The metals are ultimately recovered from above-ground plant tissues...

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Bibliographic Details
Main Authors CHANEY RUFUS L, LI YIN-MING, BAKER ALAN J.M, ANGLE J. SCOTT
Format Patent
LanguageEnglish
Published 05.06.2008
Subjects
AGRICULTURE
ANIMAL HUSBANDRY
CHEMISTRY
CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS
DISPOSAL OF SOLID WASTE
FERROUS OR NON-FERROUS ALLOYS
FISHING
FORESTRY
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
HUMAN NECESSITIES
HUNTING
METALLURGY
NEW PLANTS OR PROCESSES FOR OBTAINING THEM
PERFORMING OPERATIONS
PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
PRETREATMENT OF RAW MATERIALS
PRODUCTION AND REFINING OF METALS
RECLAMATION OF CONTAMINATED SOIL
RECLAMATION OF CONTAMINED SOIL SOIL
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
TRANSPORTING
TRAPPING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:The invention relates to recovering metals, such as nickel and cobalt, by phytomining or phytoextracting soils rich in metals wherein the desired metal is selectively accumulated in hyperaccumulator plants by adjusting the soil pH. The metals are ultimately recovered from above-ground plant tissues at economically acceptable levels without further contaminating the metal-containing sites. The invention also relates to metal-hyperaccumulating plants.
Bibliography:Application Number: US20070896011