Abstract
The present chapter is describing two pilot-scale experiments and showing the potential of the combined technology (i.e., nanoremediation and bioremediation) for in situ heavy metal removal and dechlorination of chlorinated solvents. Successful applications of the nano-bioremediation approach at two different sites in the Czech Republic contaminated with hexavalent chromium are summarized and evaluated in this chapter. High effectivity of nZVI and the further microbial bioaugmentation step by whey addition resulted in reduction and geofixation of hexavalent chromium in both localities. In addition, a high removal of chlorinated ethenes was observed in the locality 2 after the whey application. The successive abiotic and biotic processes involving the chemical reduction and further microbial bioreduction of chromium and dechlorination of chlorinated ethenes were evaluated by monitoring of physicochemical and biological parameters. The results of both applications of the combined remediation technology clearly prove feasibility and high efficiency of this approach for chromium and chlorinated ethenes removal.
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Semerád, J., Pivokonský, M., Cajthaml, T. (2020). Nano-Bioremediation: Nanoscale Zero-Valent Iron for Inorganic and Organic Contamination. In: Filip, J., Cajthaml, T., Najmanová, P., Černík, M., Zbořil, R. (eds) Advanced Nano-Bio Technologies for Water and Soil Treatment. Applied Environmental Science and Engineering for a Sustainable Future. Springer, Cham. https://doi.org/10.1007/978-3-030-29840-1_20
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DOI: https://doi.org/10.1007/978-3-030-29840-1_20
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