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US 4,732,681 AGranted
Removal of contaminants
AssigneeRamot University Authority for Applied Research and Industrial Development Ltd.
InventorsMargalith Galun, Esra Galun
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AssigneeRamot University Authority for Applied Research and Industrial Development Ltd.
InventorsMargalith Galun, Esra Galun
Estimating the term…
Heavy elements such as Pb, Zn, Cd, Ni, Cu and Cr constitute health hazards and are sources for environmental pollution. These elements should therefore be removed from industrial effluents. Biomass of Cladosporium cladosporioides (Fresen.) de Vries. Acc. No. 285712 is readily produced by culture in either standard fungal medium or on media composed of food-industry wastes: whey and distillery slop. The thus produced fungal biomass efficiently removes heavy elements from liquid solutions. Removal is achieved from fluids containing single heavy elements as well as from fluids containing two or more such elements. The removal of Cr can be vastly improved by Pb pretreatment of the biomass. Elements absorbed by Cladosporium cladosporioides Acc. No. 285712 are quantitatively removable providing an effluent-cleaning system which is renewable.
A process for the substantial decrease of heavy metal concentration in industrial effluents which comprises contacting such aqueous effluent for a sufficient period of time with a fungal hyphae biomass of Cladosporium cladosporioides Acc. No. 285712, so as to adsorb a large percentage of such heavy metals on said biomass.
A system for the complete removal or substantial decrease in concentration of a heavy metal in an aqueous solution containing the same, which comprises a container containing as an active medium for the absorption of said metal a biomass comprising mainly a fungal hyphae of the fungus Cladosporium cladosporiodies (Fresen) de Vrie, Acc. No. 285712, Commonwealth Mycological Institute, Surrey, United Kingdom;
Dependencies are inferred from the claim text.