Removal of Hydrocarbon Compounds from Industrial Wastewater by Combined Adsorption and Nanofiltration Method

Document Type : Research Paper

Authors

1 PhD. Student, Dept. of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran

2 Assist. Prof., Dept. of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran

Abstract

In recent years, with the sudden rise in water prices, many industries have decided to treat their effluent and reuse this water. In order to treat the wastewater produced by Abadan Oil Refining Company and turn it into water that can be used in this industrial, nanofiltration membrane treatment or more advanced processes are necessary. The nanofiltration membrane has a limit of hydrocarbon compounds in its input feed up to a maximum amount of 3 mg/L, but the effluent used in this research contains 5.1 mg/L of hydrocarbons. In this research, the pre-treatment process was done by anthracite adsorbent in a fixed bed, and the variables of the adsorption process, including reactor flow rate, adsorbent service time, and pH were optimized to maximize the amount of adsorption. The optimum flow rate of the reactor is 8.48 L/min, time 92.9 minutes, pH: 6.36 and the highest percentage of hydrocarbon removal is 57.62%. The output of the adsorption process is 2.16 mg/L of hydrocarbon compounds, which is considered as the feed of the nanofiltration process. The module used in this process is disk type and polyamide membrane. In the nanofiltration process, the optimal value of the variable pressure was 9.58 barg, temperature was 18.04 °C, pH: 4.62 and the highest removal percentage was 81.35%. Combining the two processes of adsorption and nanofiltration, they were able to produce hydrocarbon compounds at the output of the aqueous nanofiltration stage with a value of 0.4 mg/L, which can be used in several internal networks of the refinery. Each process has three variables,  each of which is examined in 5 levels and the number of experiments in each step is 20 and the optimization of variables in all stages using Design Expert software using the response surface methodology based on the principles of central composite design Mathematical model and optimization have been used for data design.

Keywords

References

Ahsan, A. & Imteaz, M. 2019. 14 - Nanofiltration Membrane Technology Providing Quality Drinking Water. In: Ahsan, A. & Ismail, A. F. eds. Nanotechnology in Water and Wastewater Treatment. Elsevier. 291-295.
Ainscough, T. J., Oatley-Radcliffe, D. L. & Barron, A. R. 2021. Groundwater remediation of volatile organic compounds using nanofiltration and reverse osmosis membranes-a field study. Membranes, 11(1), 61.
Alipour, Z. & Azari, A. 2020. COD removal from industrial spent caustic wastewater: a review. Journal of Environmental Chemical Engineering, 8(3), 103678.
Barge, A. S. & Vaidya, P. D. 2018. Wet air oxidation of cresylic spent caustic–a model compound study over graphene oxide (GO) and ruthenium/GO catalysts. Journal of Environmental Management, 212, 479-489.
Chen, S., Yue, Q., Gao, B., Li, Q., Xu, X. & Fu, K. 2012. Adsorption of hexavalent chromium from aqueous solution by modified corn stalk: a fixed-bed column study. Bioresource Technology, 113, 114-120.
Davoudi, M., Samieirad, S., Mottaghi, H. R. & Safadoost, A. R. 2014. The main sources of wastewater and sea contamination in the South Pars natural gas processing plants: prevention and recovery. Journal of Natural Gas Science and Engineering, 19, 137-146.
Einollahipeer, F. & Okati, N. 2022. Removal of Pb(II) from aqueous solution using response surface methodology with aminated magnetic graphene oxide synthesized from Typha Latifolia. Journal of Water and Wastewater, 33(1), 119-136. (In Persian)
Hassani, A., Mirzayee, R., Nasseri, S., Borghei, M., Gholami, M. & Torabifar, B. 2008. Nanofiltration process on dye removal from simulated textile wastewater. International Journal of Environmental Science and Technology, 5(3), 401-408.
Karimi, A., Baziyar, S., Rafiei, M. & Savari, C. 2020. Study of spent caustic wastewater treatment methods in petrochemical plants and simulation of optimum process. Journal of Civil and Environmental Engineering, 50(3), 59-67. (In Persian)
Kaya, Y. & Dayanir, S. 2020. Application of nanofiltration and reverse osmosis for treatment and reuse of laundry wastewater. Journal of Environmental Health Science and Engineering, 18, 699-709.
Lashgari, S., Lashgari, S., Keshavarz, F. & Esvandi, Z. 2022. Reverse osmosis and nano filtration membranes performance's comparison in assaluyeh industrial wastewater treatment. Journal of Water and Wastewater, 33(1), 1-11. (In Persian)
Liu, W., Zhao, Z. & Guo, Y. 2013. Removal of lead Ions from ginseng ethanol extracts by dynamic adsorption in a fixed-bed column. Chinese Journal of Chemical Engineering, 21, 227-231.
Nasr Esfahani, K., Farhadian, M. & Solaimany Nazar, A. 2019. Interaction effects of various reaction parameters on the treatment of sulfidic spent caustic through Electro-Photo-Fenton. International Journal of Environmental Science and Technology, 16(11), 7165-7174.
Nataraj, S. K., Hosamani, K. M. & Aminabhavi, T. M. 2006. Distillery wastewater treatment by the membrane-based nanofiltration and reverse osmosis processes. Water Research, 40(12), 2349-2356.
Pino-Cortés, E., Montalvo, S., Huiliñir, C., Cubillos, F. & Gacitúa, J. 2020.  Characteristics and treatment of wastewater from the mercaptan oxidation process: a comprehensive review. Processes, 8(4), 425.
Roudsari, M. H., Soltani, M., Seyedin, S. H. & Chen, P. 2017. Investigation on new method of spent caustic treatment. Journal of Multidisciplinary Engineering Science and Technology (JMEST), 4, 7459-7464.
Shi, J., Abid, A. D., Kennedy, I. M., Hristova, K. R. & Silk, W. K. 2011. To duckweeds (Landoltia punctata), nanoparticulate copper oxide is more inhibitory than the soluble copper in the bulk solution. Environmental Pollution, 159, 1277-1282.
Van Der Bruggen, B. & Vandecasteele, C. 2003. Removal of pollutants from surface water and groundwater by nanofiltration: overview of possible applications in the drinking water industry. Environmental Pollution, 122, 435-445.
Journal of Water and Wastewater; Ab va Fazilab ( in persian )
Volume 33, Issue 5 - Serial Number 142
January and February 2023
Pages 109-124

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