Two types of nano-scale zero-valent iron (nZVI-B prepared by borohydride reduction and nZVI-T produced by thermal reduction of iron oxide nanoparticles in H2) and a micro-scale ZVI (mZVI) were compared for PCB degradation efficiency in water and soil. In addition, the ecotoxicity of nZVI-B and nZVI-T particles in treated water and soil was evaluated on bacteria, plants, earthworms, and ostracods. All types of nZVI and mZVI were highly efficient in degradation of PCBs in water, but had little degradation effect on PCBs in soil. Although nZVI-B had a significant negative impact on the organisms tested, treatment with nZVI-T showed no negative effect, probably due to surface passivation through controlled oxidation of the nanoparticles.

• MeSH
• Bacteria účinky léků   MeSH
• korýši účinky léků   MeSH
• látky znečišťující půdu toxicita   MeSH
• nanočástice MeSH
• Oligochaeta účinky léků   MeSH
• oxidace-redukce MeSH
• polychlorované bifenyly chemie   MeSH
• půda chemie   MeSH
• regenerace a remediace životního prostředí * MeSH
• železo chemie   farmakologie   MeSH
• zvířata MeSH
• Check Tag
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH