A combined removal of oil, toxic metals, and arsenic from contaminated soils

摘要

In the Tulenovo oil deposit, Northeastern Bulgaria; soils have been heavily contaminated with oil, toxic heavy metals (mainly lead and cadmium) and arsenic. A pilot scale operation for a combined removal of these pollutants from the soils was carried out using the heap technique. The soil remediation was based on the activity of both indigenous and laboratory-bred microorganisms which formed a stable community.