Journal of Water and Wastewater; Ab va Fazilab (in persian)

Journal of Water and Wastewater; Ab va Fazilab (in persian)

Removal of Pollutants in the Wastewater Treatment of Industrial Park of Semnan City with the Help of Chemical and Natural Coagulants

Document Type : Research Paper

Authors
Maryam Daraee 1
Shima Khosravi 1
Ehsan Neshan Shahjooei 2
Aghil Ghanbari 1
Kiyana Peyvandy 3
1 Scientific Assist., Dept. of Chemical Engineering, Faculty of Chemical, Oil and Gas Engineering, Semnan University, Semnan, Iran
2 Scientific Assist., Dept. of Chemical Engineering, Faculty of Chemical, Oil and Gas Engineering, Semnan University, Semnan, Iran and Behin Gostar Afra Company, Semnan, Iran
3 Assoc. Prof., Dept. of Chemical Engineering, Faculty of Chemical, Oil and Gas Engineering, Semnan University, Semnan, Iran
10.22093/wwj.2025.482691.3440
Abstract
Due to the expansion of industries and the increase in the volume of industrial wastewater, as well as the reduction of natural water resources and the water shortage crisis in human societies, adopting appropriate methods to remove pollutants and treat wastewater has become necessary. In this way, the high volume of industrial effluents can be optimized by recycling the water used to bring the pollutants to the standard level for various purposes such as washing factory equipment, watering green spaces and trees, etc. Among different methods such as membrane filtration, reverse osmosis, etc., the use of absorbents to remove pollutants can be effective in achieving the goal with optimal efficiency and low cost. Coagulants, both chemical and natural, are used to remove the blockage of the absorbent and reduce the need for their regeneration or replacement. This research aims to compare the performance of several different coagulants from different groups, along with zeolite adsorbent, to treat the central sewage effluent of Semnan Industrial Park. The role of this process in reducing COD, TSS and turbidity is also investigated. The obtained results show the optimal performance of polyammonium chloride with a reduction of 60% for COD, 85% for TSS and 85% for turbidity. Similarly, Moringa, as a natural absorbent, exhibits high removal efficiency, with a reduction of 70% for COD, 75% for TSS, and 80% for turbidity. The use of two chemical and natural methods will be very effective in reducing pollutants to the allowed amount depending on the type of wastewater.
Keywords
Wastewater Treatment
Pollution Load
Chemical and Natural Coagulants
Polyaluminum Chloride
Moringa
Abd Wahid, M. A., Hara, H. and Noor, M. J. M. M., 2016. A review on genetically engineered natural coagulant based on moringa oleifera for turbidity removal. Malaysian Journal of Civil Engineering, 28. https://doi.org/10.11113/mjce.v28.15993.
Aboulhassan, M., Souabi, S., Yaacoubi, A. and Baudu, M., 2014. Treatment of paint manufacturing wastewater by the combination of chemical and biological processes. International Journal of Science, Environment and Technology, 3, 1747-1758. [Link]
Abusabha, S., Zaimes, G. and Marei, A., 2024. Applying the experiment design approach to minimize pollutants in olive mill wastewater using aluminum sulfate and ferric chloride as coagulants. West Bank-occupied Palestinian territories. Desalination and Water Treatment, 320, 100671. https://doi.org/10.1016/j.dwt.2024.100671.
Ahmad, A., Wong, S., Teng, T. and Zuhairi, A., 2008. Improvement of alum and PACl coagulation by polyacrylamides (PAMs) for the treatment of pulp and paper mill wastewater. Chemical Engineering Journal, 137, 510-517. https://doi.org/10.1016/j.cej.2007.03.088.
Ahmed, I., Habib, M., Habib, U., Hai, A. and Khan, A. U., 2016. Analysis and treatment of tannery waste water by using combined filtration and coagulation treatment process: treatment of tannery waste water by using combined filtration and coagulation. Proceedings of the Pakistan Academy of Sciences: B. Life and Environmental Sciences, 53, 179-183. [Link]
Akyol, A., 2012. Treatment of paint manufacturing wastewater by electrocoagulation. Desalination, 285, 91-99. https://doi.org/10.1016/j.desal.2011.09.039.
Anteneh, W. and Sahu, O., 2014. Natural coagulant for the treatment of food industry wastewater. International Letters of Natural Sciences, 4. https://doi.org/10.56431/p-44oq44.
Aravind, J., Kanmani, P., Sudha, G. and Balan, R., 2016. Optimization of chromium (VI) biosorption using gooseberry seeds by response surface methodology. Global Journal of Environmental Science and Management, 2, 61. https://doi.org/10.7508/gjesm.2016.01.007.
Ashmawy, M., Moussa, M., Ghoneim, A. and Tammam, A., 2012. Enhancingthe efficiency of primary sedimentation in wastewater treatment plants with the application of Moringaoliefera seeds and quicklime. The Journal of American Science, 8. 494-502. [Link]
Bangar, C., Mhaske, P., Parasur, V. and Pawar, S., 2017. Comparative study of removal of dairy waste characteristics by using various natural and chemical coagulants. In Special Issue: National Conference Momentum-17. International Journal of Research in Advent Technology (IJRAT), (Vol. 14). [Link].
Bhatia S., Othman Z. and Ahmad A. L., 2007. Pretreatment of palm oil mill effluent (POME) using Moringa oleifera seeds as natural coagulant. Journal of Hazardous Materials, 145(1-2), 120-126. https://doi.org/10.1016/j.jhazmat.2006.11.003.
Dashti, A. F., Salman, N. A. S., Adnan, R. and Zahed, M. A., 2022. Palm oil mill effluent treatment using combination of low cost chickpea coagulant and granular activated carbon: optimization via response surface methodology. Groundwater for Sustainable Development, 16, 100709. https://doi.org/10.1016/j.gsd.2021.100709.
Gautam, S. and Saini, G., 2020. Use of natural coagulants for industrial wastewater treatment. Global Journal of Environmental Science and Management, 6, 553-578. https://doi.org/10.22034/gjesm.2020.04.10.
Tomasi, I. T., Machado, C. A., Boaventura, R. A., Botelho, C. M. and Santos, S. C., 2022. Tannin-based coagulants: current development and prospects on synthesis and uses. Science of The Total Environment, 822, 153454. https://doi.org/10.1016/j.scitotenv.2022.153454.
Varsani, V. G., Vyas, S. J., Dudhagara, D., Chudasama, T. and Gadhvi, K., 2024. Unlocking the potential of lignocellulosic waste: a kinetic modeling approach for bio-coagulants in sewage water treatment. Environmental Technology and Innovation, 33, 103486. [Link]
Journal of Water and Wastewater; Ab va Fazilab (in persian)
Volume 35, Issue 4 - Serial Number 153
September and October 2024
Pages 71-87