Remediation of Soil Polluted by Organic Compounds Through Chemical Oxidation and Phytoremediation Combined with DCT

Elena Cristina Rada, Gianni Andreottola, Irina Aura Istrate, Paolo Viotti, Fabio Conti and Elena Magaril
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Elena Cristina Rada: Department of Theoretical and Applied Sciences, Insubria University of Varese, Via G.B. Vico 46, 21100 Varese, Italy
Gianni Andreottola: Department of Civil, Environmental and Mechanical Engineering, University of Trento, via Mesiano 77, 38123 Trento, Italy
Irina Aura Istrate: Department of Biotechnical System, University Politehnica of Bucharest, Spaiul Independentei 313, sector 6, 060042 Bucharest, Romania
Paolo Viotti: Department of Civil, Constructional and Environmental Engineering, University Sapienza of Rome, Via Eudossiana 18, 00184 Rome, Italy
Fabio Conti: Department of Theoretical and Applied Sciences, Insubria University of Varese, Via G.B. Vico 46, 21100 Varese, Italy

IJERPH, 2019, vol. 16, issue 17, 1-11

Abstract: Soils contaminated with organic substances is an important issue across Europe: In some areas, these are the main causes of pollution, or the second after contamination from waste disposal. This paper included an experimental application that compared three methods of remediation of contaminated sites, based on electric fields: A single treatment (electroremediation); and two combined treatments, phyto-electrochemical and electrooxidation (a combination of chemical treatment and a DCT—direct current technology). The contaminated soil was taken from a former industrial area devoted to oil refining, located between two roads: The one national and the other one for industrial use. Nine soil samples were collected at two depths (0.2 and 0.4 m). The initial characterization of the soil showed a density of 1.5 g/cm³ and a moisture of about 20%; regarding grain size, 50% of the soil had particles with a diameter less than 0.08 mm. The electrochemical treatment and electrooxidation had an efficiency of 20% while the two combined methods had efficiencies of 42.5% for electrooxidation (with H 2 O 2 ) and 20% for phyto-electroremediation (phyto-ER) with poinsettias.

Keywords: electroremediation; organic pollution; pelargonium; phytoremediation; TPH (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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