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In-Situ Combination of Bio and Abio Remediation of Chlorinated Ethenes Cover

In-Situ Combination of Bio and Abio Remediation of Chlorinated Ethenes

Open Access
|Oct 2013

Abstract

This article deals with combined abio-bioreductive methods for in-situ removal of chlorinated ethenes. The method is based on the use of bioremediation supported by lactate and chemical reduction using nZVI. The method is compared with the use of the individual methods alone, mainly with nZVI. In an environment with very low permeability a poor contaminant removal efficiency was achieved during repeated application of nZVI (about 50% of the original content of contamination). Separate application of lactate resulted in conversion of PCE to 1,2-cis-DCE, whose degradation occurred very slowly. When using the combined abio-bioreductive method, based on consecutive application of lactates and nZVI, over 75% of the original content of contamination was removed. This article discusses not only the changes in concentrations of contaminants but also pH and ORP. Both methods are also compared from an economic point of view.

DOI: https://doi.org/10.2478/eces-2013-0034 | Journal eISSN: 2084-4549 | Journal ISSN: 1898-6196
Language: English
Page range: 463 - 473
Published on: Oct 8, 2013
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2013 Lenka Lacinová, Martina Černíková, Jaroslav Hrabal, Miroslav Černík, published by Society of Ecological Chemistry and Engineering
This work is licensed under the Creative Commons License.