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Upgrading "Qaed Basir"Petrochemical Wastewater Treatment Plant

Maqsudi, Matin | 2017

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 50066 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Borghei, Mehdi; Shayegan Salek, Jalaledin
  7. Abstract:
  8. Golpayegan Qaed Basir Petrochemical Company is one of the lucrative and entrepreneurial companies in Iran. Every day in this complex, a large amount of wastewater is being generated and transferred to the evaporative lag after the primary and secondary purification outside the complex and it is not restored. Considering the growing importance of surface and underground water resources, reuse of wastewater is a valuable production. In this research, the optimization of the sewage treatment system of the complex was evaluated by replacing the chemicals in the primary purification unit and also by using chloride-ferric and trickling filter for tertiary purification(treating) of the wastewater. The results showed that by using alum in the coagulation-flocculation unit, the process was improved operationally and economically; In the treating section too, the optimal injection of chloride-ferric into the final effluent resulted in the removal of suspended materials, turbidity and more than 81% of the existing phosphate .In addition, the trickling filter removed 85% of nitrogen, 36% of phosphorus, 79% of BOD and 73% of the COD of the final wastewater treatment plant and also it facilitated the recycling and restoring of the water. The type of topical media and the appropriate hydrolic loading in the trickling filter for the best purification efficiency, along with kinetic and design constant were also used to design the unit on an industrial scale. This research is a set of effective process-economic measures that helps the current state and identifies some feasible and safe solutions for the restoration
  9. Keywords:
  10. Upgrading ; Waste Water ; Trickling Filter ; Restoration ; Petrochemical Wastewater ; Coagulation ; Flocculation ; Chloride-Ferric

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