Journal ArticleDOI
Heavy Metal Accumulation by Bacteria and Other Microorganisms
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TLDR
The removal of such harmful substances from effluents and waste waters by microbe-based technologies may provide an alternative or additional means of metal/radionuclide recovery for economic reasons and/or environmental protection.Abstract:
Bacteria, and other microorganisms, exhibit a number of metabolism-dependent and-independent processes or the uptake and accumulation of heavy metals and radionuclides. The removal of such harmful substances from effluents and waste waters by microbe-based technologies may provide an alternative or additional means of metal/radionuclide recovery for economic reasons and/or environmental protection. Both living and dead cells as well as products derived from or produced by microorganisms can be effective metal accumulators and there is evidence that some biomass-based clean-up processes are economically viable. However, many aspects of metal-microbe interactions remain unexploited in biotechnology and further development and application is necessary, particularly to the problem of radionuclide release into the environment.read more
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Journal ArticleDOI
Metal-binding capacity of arbuscular mycorrhizal mycelium.
TL;DR: In this article, experiments with excised mycelium of several Glomus spp. with different histories of exposure to heavy metals were carried out to measure their capacities to bind Cd and Zn.
Journal Article
Biosorption of heavy metals-An overview
TL;DR: A selective overview of past achievements and present scenario of biosorption studies carried out on some promising natural biosorbents and some waste materials which could serve as an economical means of treating effluents charged with toxic metallic ions are provided.
Journal ArticleDOI
Influence of metal resistant-plant growth-promoting bacteria on the growth of Ricinus communis in soil contaminated with heavy metals.
Mani Rajkumar,Helena Freitas +1 more
TL;DR: Owing to its wide action spectrum, the metal resistant PGPB could serve as an effective metal sequestering and growth-promoting bioinoculant for plants in metal-stressed soil.
Journal ArticleDOI
A bioseparation process for removing heavy metals from waste water using biosorbents
TL;DR: This comprehensive review of the occurrences and toxicology of heavy metals and the biosorption capacity of biosorbents compared to conventional adsorbents finds that sorption isotherms, sorption kinetics, intraparticle diffusivities as well as models used to characterize biosorbent sorption are reviewed.
Journal ArticleDOI
Bioaccumulation of metal cations by saccharomyces cerevisiae
Dean Brady,John R. Duncan +1 more
TL;DR: In this paper, it was shown that yeast cells in suspension accumulate heavy metal cations such as Cu2+, Co2+, and Cd2+ in a wide range of ambient conditions.
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Journal ArticleDOI
Heavy metal accumulation by bacteria and other microorganisms
TL;DR: Many aspects of metal-microbe interactions remain unexploited in biotechnology and further development and application is necessary, particularly to the problem of radionuclide release into the environment.
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