Volume 14 Issue 3
Sep.  2021
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Agata Rosińska, Lidia Dąbrowska. 2021: Influence of type and dose of coagulants on effectiveness of PAH removal in coagulation water treatment. Water Science and Engineering, 14(3): 193-200. doi: 10.1016/j.wse.2021.08.004
Citation: Agata Rosińska, Lidia Dąbrowska. 2021: Influence of type and dose of coagulants on effectiveness of PAH removal in coagulation water treatment. Water Science and Engineering, 14(3): 193-200. doi: 10.1016/j.wse.2021.08.004

Influence of type and dose of coagulants on effectiveness of PAH removal in coagulation water treatment

doi: 10.1016/j.wse.2021.08.004

This work was supported by the statute subvention of Czestochowa University of Technology (Grant No. BS-PB-400/301).

  • Received Date: 2020-08-28
  • Accepted Date: 2021-05-10
  • Available Online: 2021-10-11
  • This study evaluated the influence of the type and dose of coagulants on the removal of 16 polycyclic aromatic hydrocarbons (PAHs) in the coagulation process. The effects of coagulant type and dose in reducing water turbidity, colour, and the total content of organic compounds were also assessed. The surface water samples had the turbidity of 9.3-11.2 NTU and colour of 25-35 mg/L. The content of organic compounds determined with total organic carbon (TOC) was 9.2-12.5 mg/L. For the coagulation process, pre-hydrolyzed polyaluminium chloride (PACl) coagulants with basicity values of 41%, 65%, and 85% were used. This shows that water purification performance increased as the basicity of the coagulant increased. When the coagulant with the highest basicity and a dose of 3 mg Al per litre was used, a removal efficiency of 83% in the concentration of benzo(a)pyrene was achieved, and efficiencies for the remaining 15 PAHs ranged from 80% to 91%. These values were 4%-9% higher than those achieved using other coagulants. The removal efficiencies of turbidity, colour, and TOC were 80%, 60%, and 35%, respectively. The water purification performance, including PAH removal, was improved with the increased coagulant dose. Increasing the coagulant dose had more pronounced effects on PAH removal than on the reduction of turbidity and TOC.


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  • Alexander, J.T., Hai, F.I., Al-aboud, T.M., 2012. Chemical coagulation-based processes for trace organic contaminant removal: Current state and future potential. J. Environ. Manag. 111, 195-207. https://doi.org/10.1016/j.jenvman.2012.07.023.
    Amstaetter, K., Eek, E., Cornelissen, G., 2012. Sorption of PAHs and PCBs to activated carbon: Coal versus biomass-based quality. Chemosphere 87(5), 573-578. https://doi.org/10.1016/j.chemosphere.2012.01.007.
    Boström, C.E., Gerde, P., Hanberg, A., Jernström, B., Johansson, C., Kyrklund, T., Rannug, A., Törnqvist, M., Victorin, K., Westerholm, R., 2002. Cancer risk assessment, indicators and guidelines for polycyclic aromatic hydrocarbons in the ambient air. Environ. Health Perspect. 110(s3), 451-488. https://doi.org/10.1289/ehp.110-1241197.
    Choi, K.J., Kim, S.G., Kim, S.H., 2008. Removal of antibiotics by coagulation and granular activated carbon filtration. J. Hazard Mater. 151(1), 38-43. https://doi.org/10.1016/j.jhazmat.2007.05.059.
    Council of the European Union (CEU), 1998. Council Directive 98/83/EC of 3 November 1998 on the Quality of Water Intended for Human Consumption. Official Journal of the European Communities, L330/32.
    Dąbrowska, L., 2018. The use polyaluminium chlorides with various basicity for removing of organic matter from water. Desalin. Water Treat. 134, 80-85. https://doi.org/10.5004/dwt.2018.22660.
    Duan, J., Gregory, J., 2003. Coagulation by hydrolysing metal salts. Adv. Colloid Interface Sci. 100-102, 475-502. https://doi.org/10.1016/S0001-8686(02)00067-2.
    Kim, K.H., Jahan, S.A., Kabir, E., Brown, R.J.C., 2013. A review of airborne polycyclic aromatic hydrocarbons (PAHs) and their human health effects. Environ. Int. 60, 71-80. https://doi.org/10.1016/j.envint.2013.07.019.
    Lawa, A.T., 2017. Polycyclic aromatic hydrocarbons: A review. Cogent Environ. Sci. 3(1), 1-86. https://doi.org/10.1080/23311843.2017.1339841.
    Li, T., Zhu, Z., Wang, D.S., Yao, C.H., Tang, H.X., 2006. Characterization of floc size, strength and structure under various coagulation mechanisms. Powder Technol. 168(2), 104-110. https://doi.org/10.1016/j.powtec.2006.07.003.
    Li, X.M., Peng, P.A., Zhang, S.K., Man, R., Sheng, G.Y., Fu, J.M., 2009. Removal of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans by three coagulants in simulated coagulation processes for drinking water treatment. J. Hazard Mater. 162(1), 180-185. https://doi.org/10.1016/j.jhazmat.2008.05.030.
    Lin, J.-L., Ika, A.R., 2020. Minimization of halogenated DBP precursors by enhanced PACl coagulation: The impact of organic molecule fraction changes on DBP precursors destabilization with Al hydrates. Sci. Total Environ. 703, 134936. https://doi.org/10.1016/j.scitotenv.2019.134936.
    Ma, B.W., Xue, W.J., Hu, C.Z., Liu, H.J., Qu, J.H., Li, L.L., 2019. Characteristics of microplastic removal via coagulation and ultrafiltration during drinking water treatment. Chem. Eng. J. 359, 159-167. https://doi.org/10.1016/j.cej.2018.11.155.
    Matilainen, A., Vepsäläinen, M., Sillanpää, M., 2010. Natural organic matter removal by coagulation during drinking water treatment: A review. Adv. Colloid Interface Sci. 159(2), 189-197. https://doi.org/10.1016/j.cis.2010.06.007.
    Nowacka, A., Włodarczyk-Makuła, M., 2015. Effectiveness of priority PAH removal in water coagulation process. Water Supply 15(4), 683-692. https://doi.org/10.2166/ws.2015.023.
    Rodríguez, S.G.S., Kennedy, M.D., Diepeveen, A., Prummel, H., Schippers, J.C., 2008. Optimization of PACl dose to reduce RO cleaning in an IMS. Desalination 220(1-3), 239-251. https://doi.org/10.1016/j.desal.2007.02.039.
    Rosińska, A., Dąbrowska, L., 2018. Selection of coagulants for the removal of chosen PAH from drinking water. Water 10(7), 886-899. https://doi.org/10.3390/w10070886.
    Sillanpää, M., Ncibi, M.C., Matilainen, A., Vepsäläinen, M., 2018. Removal of natural organic matter in drinking water treatment by coagulation: A comprehensive review. Chemosphere 190, 54-71. https://doi.org/10.1016/j.chemosphere.2017.09.113.
    Sperczyńska, E., Dąbrowska, L., Wiśniowska, E., 2016. Removal of turbidity, colour and organic matter from surface water by coagulation with polyaluminium chlorides and with activated carbon as coagulant aid. Desalin. Water Treat. 57(3), 1139-1144. https://doi.org/10.1080/19443994.2014.989634.
    Tang, Y.N., Hu, X.Y., Cai, J., Xi, Z.H., Yang, H., 2020. An enhanced coagulation using a starch-based coagulant assisted by polysilicic acid in treating simulated and real surface water. Chemosphere 259, 127464. https://doi.org/10.1016/j.chemosphere.2020.127464.
    Thuy, P.T., Moons, K., van Dijk, J.C., Anh, V.N., van der Bruggen, B., 2008. To what extent are pesticides removed from surface water during coagulation-flocculation? Water Environ. J. 22(3), 217-223. https://doi.org/10.1111/j.1747-6593.2008.00128.x.
    Verma, A.K., Dash, R.R., Bhunia, P., 2012. A review on chemical coagulation/flocculation technologies for removal of colour from textile wastewaters. J. Environ. Manag. 93(1), 154-168. https://doi.org/10.1016/j.jenvman.2011.09.012.
    Yang, Z.L., Gao, B.Y., Cao, B.C., Xu, W.Y., Yue, Q.Y., 2011a. Effect of OH-/Al3+ ratio on the coagulation behavior and residual aluminum speciation of polyaluminum chloride (PAC) in surface water treatment. Separ. Purif. Technol. 80(1), 59-66. https://doi.org/10.1016/j.seppur.2011.04.007.
    Yang, Z.L., Gao, B.Y., Wang, Y., Wang, Q., Yue, Q.Y., 2011b. Aluminum fractions in surface water from reservoirs by coagulation treatment with polyaluminum chloride (PAC): Influence of initial pH and OH-/Al3+ ratio. Chem. Eng. J. 170(1), 107-113. https://doi.org/10.1016/j.cej.2011.03.036.
    Zhang, Z., Jing, R., He, S.R., Qian, J., Zhang, K., Ma, G.L., Chang, X., Zhang, M.K., Li, Y.T., 2018. Coagulation of low temperature and low turbidity water: Adjusting basicity of polyaluminium chloride (PAC) and using chitosan as coagulant aid. Separ. Purif. Technol. 206, 131-139. https://doi.org/10.1016/j.seppur.2018.05.051.
    Zhao, H., Hu, C.Z., Liu, H.J., Zhao, X., Qu, J.H., 2008. Role of aluminum speciation in the removal of disinfection byproduct precursors by a coagulation process. Environ. Sci. Technol. 42(15), 5752-5758. https://doi.org/10.1021/es8006035.
    Zhou, Y.X., Yan, M.Q., Liu, R.P., Wang, D.S., Qu, J.H., 2017. Investigating the effect of hardness cations on coagulation: The aspect of neutralisation through Al(Ⅲ)-dissolved organic matter (DOM). Water Res. 115, 22-28. https://doi.org/10.1016/j.watres.2017.02.041.
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