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SVE was found to be very efficient and remove nearly 70\u2009% of the four HCH in the 15\u2010days of the tests. The application of electrokinetics produced the transport of HCH to the cathode by different electrochemical processes, which were satisfactorily modelled with a 1\u2010D transport equation. The increase in the electric field led to an increase in the transport of pollutants, although 15\u2005days was found to be a very short time for an efficient transportation of the pollutants to the nearness of the cathode. Loss of water content in the vicinity of the cathode warns about the necessity of using electrokinetic flushing technologies instead of simple direct electrokinetics. Thus, results point out that direct electrokinetic treatment without adding flushing fluids produced low current intensities and ohmic heating that contributes negatively to the performance of the SVE process. No relevant differences were found among the removal of the four isomers, neither in SVE nor in EK processes.<\/jats:p>","DOI":"10.1002\/open.202200022","type":"journal-article","created":{"date-parts":[[2022,7,25]],"date-time":"2022-07-25T07:55:50Z","timestamp":1658735750000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Combining Soil Vapor Extraction and Electrokinetics for the Removal of Hexachlorocyclohexanes from Soil"],"prefix":"10.1002","volume":"12","author":[{"given":"Jo\u00e3o M. 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