river sediments collected in environmentally stressed areas. The experiment
conducted indicates that this approach can be successfully applied to recover Cu,
Ni and Zn from contaminated soils and sediments. Good removal rates were
achieved after single washing; to increase the yields, multiple washing might be
needed. Although scientific studies that have been published on this topic point to a
high efficiency of biosurfactants in removing metals from contaminated sites, more
information is required with regard to the interactions between these compounds and
contaminants in order to utilize their full potential in remediation technologies.
Acknowledgements This work was supported by the Scientific Grant Agency of the Slovak
Republic Ministry of Education, Science, Research and Sport and the Slovak Academy of Sciences
under contract nos. VEGA 1/0153/17, 1/0146/18.
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