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Advisor(s)
Abstract(s)
Heavy metal pollution is a matter of concern in
industrialised countries. Contrary to organic pollutants, heavy
metals are not metabolically degraded. This fact has two main
consequences: its bioremediation requires another strategy
and heavy metals can be indefinitely recycled. Yeast cells of
Saccharomyces cerevisiae are produced at high amounts as a
by-product of brewing industry constituting a cheap raw material.
In the present work, the possibility of valorising this
type of biomass in the bioremediation of real industrial effluents
containing heavy metals is reviewed. Given the autoaggregation
capacity (flocculation) of brewing yeast cells, a
fast and off-cost yeast separation is achieved after the treatment
of metal-laden effluent, which reduces the costs associated
with the process. This is a critical issue when we are
looking for an effective, eco-friendly, and low-cost technology.
The possibility of the bioremediation of industrial effluents
linked with the selective recovery of metals, in a strategy of
simultaneous minimisation of environmental hazard of industrial
wastes with financial benefits from reselling or recycling
the metals, is discussed.
Description
Keywords
Biosorption Heavy metals bioremediation Industrial effluents Metals recycling Saccharomyces cerevisiae Yeast
Citation
Publisher
Springer