BIODEGRADATION OF PETROLEUM HYDROCARBONS IN AN ARTIFICIAL POLLUTED SOIL PUBLISHEDMariana Marinescu, Mihail Dumitru, Anca Rovena Lăcătuşu
Biodegradation is the process by which organic substances are broken down by the enzymes produced by living organisms. The term is often used in relation to ecology, waste management and environmental remediation (bioremediation). Some microorganisms have the capacity to degrade, transform or accumulate petroleum hydrocarbons. Bioremediation of petroleum hydrocarbon contaminated soils has been recognized as an efficient, economic, versatile and environmentally good treatment. Inadequate bioavailability of the hydrocarbons to microorganisms due to low solubility is a limiting step in biodegradation. So, it must be found a method to increase the microorganisms activity. This research is based on the microorganisms activity increase by adding natural absorbent biodegradable and bacterial inoculums. The elimination of petroleum hydrocarbons from the environment is an absolute requirement to promote a sustainable development of our society with low environmental impact. In this paper are presented the results obtained in greenhouse experiment concerning the bioremediation of artificial polluted soil using a natural hydrocarbon absorbent product and bacterial inoculums to enhance the biodegradation of petroleum hydrocarbons. The plant use in the experiment was maize. These are some preliminary results, therefore the experimental research will continue in Green House on the same polluted soil.
biodegradation; artificial polluted soil; petroleum hydrocarbons