Loading...

A Study of Practical Methods for Petroleum Hydrocarbons Removal from Polluted Groundwaters in a Refinery

Safdari, Mohammad Saeed | 2013

596 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 44968 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Kariminia, Hamid Reza
  7. Abstract:
  8. Petroleum based products are the major sources of energy for industry and daily life, With the development of social economy, the demands of the oil have increased dramatically. Petroleum hydrocarbons can cause environmental pollution during various stages of production, transportation, refining and use. Releases of petroleum products(e.g., gasoline, diesel, fuel oil) from aboveground and underground storage tanks or transport pipelines are the major causes of the environment pollution.The major constituents of petroleum hydrocarbons are biodegradable. Many soil microorganisms transform oil hydrocarbons into nontoxic compounds or mineralize them to inorganic compounds. In situ bioremediation techniques have been used for years to remediate hydrocarbon polluted sites. Bioremediation is an environmentally friendly treatment and reduce the concentration and/or toxicity of various pollutants, including petroleum products. Bioremediation is simpler, less labor intensive and public attitude toward bioremediation are generally favorable.Gradual diesel leakage in Khangiran refinery in northeast of Iran results groundwater and soil pollution. In this study, a strain of Pseudomonas aeruginosa isolated from contaminated soil of the refinery. The strain characterized and examined to degrade diesel in water and has ability to utilize hydrocarbons as substrates. Experiments were carried out in lab scale and the growth of microorganisms were investigated directly.Results showed biodegradation more than 80% can be achieved within 15 days using this strain. These results suggested that this strain in bioreactor might be applicable to a groundwater treatment system for the removal of hydrocarbons
  9. Keywords:
  10. Groundwater ; Bioremediation ; Oil Pollution ; Microorganisms

 Digital Object List

 Bookmark

No TOC