[01] Peyman Haghighi, Department of Chemical Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran. [02] Farshad Farahbod, Department of Chemical Engineering, Firoozabad Branch, Islamic Azad University, Firoozabad, Iran.

The huge amount of waste water from refineries is produced daily. The drainage of wastewater into soil and sea will be disturbed the environment in times. The techniques of wastewater treatment have been considered, recently. The commercial mineral coagulants, Zinc oxide as nano coagulants are used in the pretreatment process. The main items for treatment of oily wastewater is investigated in this section. The practical variables such as ammonia removal, heavy metals removal, sulfide removal, SVI and phenol removal are evaluated in this research. Moreover, in softening process, the Sodium Carbonate and Sodium Hydroxide must be added to the wastewater. The performance of usage of nano zinc oxide as coagulant is evaluated in this work, experimentally. The coagulants are the matters used to decrease total hardness of wastewater. The pretreatment process includes 3 steps: coagulation, flocculation and sedimentation. Improving the efficiency of pretreatment process depends on water specifications and also the operating parameters. The results show the lower consistency with the coagulant structure or don’t react well and so don’t show much increase in the percentage of sulfide removal. The empirical results show the effect of usage of nano coagulant in reduction of slug volume index. The changes in the amount of nano coagulant from 1 to 2.5 gr show the increase in the amount of reduction ratio of slug volume index from 20 to 32, respectively.

Pre-treatment, Waste Stream, Petroleum, Environmental Problems, Performance

[01] Yamakawa Soji, Shimada Kenji, Feature Edge Extraction Via Angle-Based Edge Collapsing and Recovery, Journal of Computing and Information Science in Engineering, 2018; 18 (2): 021001-021001-18. doi: 10.1115/1.4037227. [02] J. Hagedorn Thomas, Krishnamurty Sundar, R. Grosse Ian, A Knowledge-Based Method for Innovative Design for Additive Manufacturing Supported by Modular Ontologies, Journal of Computing and Information Science in Engineering, 2018; 18 (2): 021009-021009-12. doi: 10.1115/1.4039455. [03] Rafibakhsh Nima, I. Campbell Matthew, Hierarchical Fuzzy Primitive Surface Classification From Tessellated Solids for Defining Part-to-Part Removal Directions, Journal of Computing and Information Science in Engineering, 2017; 18 (1): 011006-011006-12. doi: 10.1115/1.4038144. [04] Liangyin Xu, Yunpeng Li, Sheng Zhang, Biaosong Chen, Efficient Visualization Strategies for Large-Scale Finite Element Models, Journal of Computing and Information Science in Engineering, 2018; 18 (1): 011007-011007-13. doi: 10.1115/1.4038315. [05] Barone Sandro, Paoli Alessandro, V. Razionale Armando, Optical Tracking of a Tactile Probe for the Reverse Engineering of Industrial Impellers Journal of Computing and Information Science in Engineering, 2017; 17 (4): 041003-041003-14. doi: 10.1115/1.4036119. [06] Yin Leilei, Tang Dunbing, Wang Qi, Ullah Inayat, Zhang Haitao, Engineering Change Management of Product Design Using Model-Based Definition Technology Journal of Computing and Information Science in Engineering, 2017; 17 (4): 041006-041006-19. doi: 10.1115/1.4036121. [07] Wang Shumiao, Bhandari Siddharth, Chaitanya Chaduvula Siva, J. Atallah Mikhail, H. Panchal Jitesh, Ramani Karthik, Secure Collaboration in Engineering Systems Design Journal of Computing and Information Science in Engineering, 2017; 17 (4): 041010-041010-11. doi: 10.1115/1.4036615. [08] Alomair O, Elsharkawy A, Alkandari H. Viscosity predictions of Kuwaiti heavy crudes at elevated temperatures. In: SPE Heavy Oil Conference and Exhibition, Kuwait, 12–14 December 2011. p. 1–18. [09] Yigit Ahmet S., Christoforou Andreas P., Stick-Slip and Bit-Bounce Interaction in oil-well Drillstrings, J. Energy Resour. Technol. 2006; 128 (4): 268-274. [10] Barrufet MA, Setiadarma A. Reliable heavy oil-solvent viscosity mixing rules for viscosities up to 450 K, oil-solvent viscosity ratios up to 4 _ 105, and any solvent proportion. Fluid Phase Equilib. 2003; 213: 65–79. [11] Luis F. Ayala, Doruk Alp, Evaluation of “Marching Algorithms” in the Analysis of Multiphase Flow in Natural Gas Pipelines, J. Energy Resour. Technol. 2008; 130 (4), 043003. [12] Yilin Wang John, Well Completion for Effective Deliquification of Natural Gas wells, J. Energy Resour. Technol. 2011; 134 (1): 013102. [13] Farahbod F., Farahmand S., Empirical investigation of heating and kinematic performance of ZnO nano fluid in a heat pipe for enhancing the energy transfer rate, Journal of nanofluids, 6 (1), 2017, Pages 128-135. DOI: 10.1166/jon.2017.1306. [14] Nasr Maher, Raymond Jasmin, Malo Michel, Gloaguen Erwan, Geothermal potential of the St. Lawrence Lowlands sedimentary basin from well log analysis, Geothermics, Volume 75, September 2018, Pages 68-80. https://doi.org/10.1016/j.geothermics.2018.04.004. [15] Farahbod F., Farahmand S., Experimental and Theoretical Evaluation of Amount of Removed Oily Hydrocarbon, Aromatic and Bioassay of Drilling Fluid by Zinc Oxide Nano Coagulant, Journal of nanofluids, 7, 2018, Pages 223–234. DOI: 10.1166/jon.2018.1443. [16] Chuan Lu, Huiqing Liu, Qiang Zheng, Qingbang Meng, Experimental Study of Reasonable Drawdown Pressure of Horizontal Wells in Oil Reservoir With Bottom Water, J. Energy Resour. Technol. 2014; 136 (3): 034502. [17] Loyola-Fuentes José, Smith Robin, Data reconciliation and gross error detection in crude oil pre-heat trains undergoing shell-side and tube-side fouling deposition, Energy, Volume 183, 15 September 2019, Pages 368-384. https://doi.org/10.1016/j.energy.2019.06.119. [18] Junlai Wu; Yuetian Liu; Haining Yang, New Method of Productivity Equation for Multibranch Horizontal Well in Three-Dimensional Anisotropic Oil Reservoirs, J. Energy Resour. Technol.. 2012; 134 (3): 032801-032801-5. [19] Motamedi Pouyan, Bargozin Hasan, Pourafshary Peyman, Management of Implementation of Nanotechnology in Upstream Oil Industry: An Analytic Hierarchy Process Analysis, Journal of energy resources technology, 140 (5), 2018, 052908-052908-7. doi: 10.1115/1.4038846. https://doi.org/10.1115/1.4038846. [20] Anuj Gupta, Performance Optimization of Abrasive Fluid Jet for Completion and Stimulation of Oil and Gas Wells, J. Energy Resour. Technol. 2012; 134 (2): 021001. [21] Arzanipour M., Farahbod F., Parametric Study on the Physical Properties of Nano Crude Oil, 2017, vol 2, 14-18. [22] Farahmand S., Nasr MRJ., Farahbod F., Novel plan of triethylene glycol regeneration packed tower for energy and cost saving, The Canadian Journal of Chemical Engineering, 2011, 89 (3), 520-528. [23] Farahbod F., Farahmand S., Experimental study of solar pond coupled with forced circulation crystallizer as major stages of proposed zero discharge desalination process, Journal of Thermal Science and Engineering Applications, 2014, 6 (2), 021002.