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    STUDIA AMBIENTUM - Issue no. 1-2 / 2012  
         
  Article:   STUDY ON THE EX-SITU BIOREMEDIATION TECHNIQUES APPLICABLE FOR SOILS CONTAMINATED WITH PETROLEUM PRODUCTS.

Authors:  ANDREEA COSTEA, VALER MICLE, CALIN GEORGE ROGOZAN, MARIA PRODAN. 		 
       
         
  Abstract:   In the present paper is made a study on the ex-situ bioremediation methods, to determine the most adequate techniques of bioremediation for soils contaminated with petroleum products.Pollution with petroleum hydrocarbons, due primarily to the increase of oil and petroleum products consumption represents a major problem for the environment with serious repercussions for humans, plants and animals. Bioremediation is a biological, natural method, being successfully used in remediation of sites contaminated with petroleum hydrocarbons, without adversely affecting the ecosystem and having a relatively low cost. Bioremediation is based on the presence of indigenous microorganisms in the soil and on the introduction in the contaminated area with petroleum products of microorganisms capable of degrading pollutants. The degree of degradation of petroleum hydrocarbons is influenced by several factors, of which the most important are: temperature, pH, soil humidity, oxygen concentration, nutrient concentration, concentration and type of hydrocarbons.

Key words: bioremediation, petroleum products, microorganisms, soil
 
         
     
         
         
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