Phytotoxic properties of electrically-cleaned oil-contaminated soils (the use of Lepidium sativum L. biotest)

Abstract

Abstract The changes in the properties of contaminated soil during electrochemical cleaning is very important. The results of research of phytotoxicity of soil contaminated with oil and mineralized formation water after electrochemical treatment are presented in this paper. A biotesting methodic with Lepidium sativum L. allowed to do complex assessment of the hazardous properties of contaminated soil. Lepidium sativum L is one of the most useful test object because of its high responsiveness to the presence of pollutants and ability to quickly germination. The most presentative parameters of this methodic are the percentage of seed germination and the total length of seedlings (sum of underground and aboveground parts length). A statistical analysis of the experimental data was carried out too.