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Experimental Study of Effective Factors on Removing Heavy Metals from Produced Water using Iron Nanoparticles

Hadian, Morteza | 2014

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 46008 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Shayegan, Jalaleddin
  7. Abstract:
  8. The oilfields' wastewater, the water that is produced beside oil and is called ''Produced Water'', includes a large variety of pollutants. Heavy metals such as Lead, Manganese, Zinc and Barium and their compounds are some of the produced water's pollutants and because of their high stability they accumulate in life cycle. So a suitable and proper treatment is necessary. A combination of effectual and important parameters such as good adsorption, magnetic properties and low prices made Iron nanoparticles have a bright future in management of environmental pollutions. In this study Maghemite and Magnetite nanoparticles are used to remove heavy metals and effect of others factors such as pH, temperature, time and amount of nanoparticle is also is examined under batch experiments. Experiments are designed by Respond Surface Methodology in Design Expert software and the results showed that various pollutants such as heavy metals, COD, TOC and Oil & Grease have been removed from produced water simultaneouslyby iron nanoparticles. Dependence of remove percentageto factors like temperature and pH for each metal is evaluated. First 10 minutes has the most removal efficiency, showing rapid removal of heavy metals by iron nanoparticles. Higher temperature showed higher removal, means the process is endothermic. Despite lead, manganese and barium, zinc was removed better in acid range of pH .Maghemite had a higher adsorption capacity rather than Magnetite
  9. Keywords:
  10. Iron Nanoparticle ; Heavy Metals ; Environment Pollution ; Magnetite ; Producted Water ; Maghemite

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