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THE USE OF OZONE IN COMBINATION WITH ELECTROCHEMICAL TREATMENT FOR THE REMEDIATION OF ORGANIC POLLUTED SOILS
Istrate, IA; Dinca, MN; Ferdes, M; Cocarta, DM
Actual Tasks on Agricultural Engineering-Zagreb
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In the last decades the researches have been concentrated on the soil treatment optimization due to the rising problem of contaminated soils around the world. The ozone is a highly reactive form of oxygen, capable of converting organic molecules to water and carbon dioxide. Ozone will rid contaminated soil of a variety of pollutants such as: MTBE (Methyl-Tertiary-Butyl-Ether), hydrocarbons, diesel, pesticides, VOCs (Volatile Organic Carbons), benzene, toluene, ethylbenzene, xylene, tricholoroethylene, aromatics. Ozone Treatment has evolved from water treatment to soil remediation. Recently, ozone has been used to clean up sites containing variety of soil contaminants. The reason for using ozone is to target those compounds that are not biodegradable or the ones which are biodegradable over a long period of time.
The present paper will present the results obtained after the use of ozone as a part of a chemical oxidation treatment and will give the preliminary results for the combined treatment (ozone and electrochemical remediation).
The ozone proved to be effective for the simple test, but for an exposure period longer than 6 hour for our quantity. It is for sure that for a higher quantity the efficiency of treatment will be higher with the increase of the exposure period. The combined treatment will be used also for difficult types of soil matrix.
ozone; soil pollution; electrochemical treatment
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