The Effect of Filter Media Size and Loading Rate to Filter Performance of Removing Microplastics using Rapid Sand Filter
DOI:
https://doi.org/10.5614/j.eng.technol.sci.2022.54.5.12Keywords:
effective size, filtration cycle, head loss, loading rate, microplastics removal, rapid sand filterAbstract
Microplastics (MP) can pose a serious threat to the environment and human health because of their tiny size and ability to spread easily in water. One of the alternative treatments to remove MP from water is the rapid sand filter (RSF). The objective of this study was to analyze the effects of filter media size and loading rate on RSF performance in removing MP. The applied filter media was silica sand with effective sizes (ES) of 0.39 and 0.68 mm. The loading rates of filtration were 4; 6; 8 and 10 m3/m2-h. The MP samples were made from plastic bags and torn tires (artificial samples: 10 to 800 m). This study showed that the MP removal percentage was up to 96.6% (MP size larger than 200 m). The head loss increment for loading rates 4; 6; 8; 10 m3/m2-h was 0.16; 0.35; 0.34; 0.25 m (ES 0.39 m) and 0.10; 0.18; 0.18; 0.19 m (ES 0.68 m)), respectively. Meanwhile, the filtration cycle for loading rates 4; 6; 8; and 10 m3/m2-h was 5, 2, 2, and 1 days (ES 0.39 mm) and 9, 4, 3, and 3 days (ES 0.68 mm), respectively. The result of this study showed that the smaller the filter media size, the higher the head loss of the filter media bed. Furthermore, there is an increased head loss of the filter media bed when the loading rate is greater.
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References
Boucher, J. & Friot, D., Primary Microplastics in the Oceans: A Global Evaluation of Sources, IUCN, 43p, Gland, Switzerland, 2017. DOI: 10.2305/IUCN.CH.2017.01.en.
Eo, S., Hong, S.H., Song, Y.K., Lee, J. & Shim, W.J., Abundance, Composition, and Distribution of Microplastics Larger than 20 mm in Sand Beaches of South Korea, Environ. Pollut., 238, pp. 894-902, 2018.
Elgarahy, A.M., Akhdar, A. & Elwakeel, K.Z., Microplastics Prevalence, Interactions, and Remediation in the Aquatic Environment: A Critical Review, Journal of Environmental Chemical Engineering, 9(5), 106224, 2021.
Pivokonsky, M., Cermakova, L., Novotna, K., Peer, P., Cajthaml, T. & Janda, V., Occurrence of Microplastics in Raw and Treated Drinking Water, Science of Total Environment, 643, pp. 1644-1651, 2018.
Wright, S.L. & Kelly, F.J., Plastic and Human Health: A Micro Issue? Environ. Sci. Technol., 51(12), pp. 6634-6647, 2017.
Zhao, H., Xu, J., Yan, Z., Ren, H. & Zhang, Y., Microplastics Enhance the Developmental Toxicity of Synthetic Phenolic Antioxidants by Disturbing the Thyroid Function and Metabolism in Developing Zebrafish, Environ. Int., 140, 105750, 2020.
Talvitie, J., Mikola, A., Koistinen, A. & Setala, O., Solutions to Microplastics Pollution ? Removal of Microplastics from Wastewater Effluent with Advanced Wastewater Treatment Technologies, Water Research, 123, pp. 401-407, 2017.
Sembiring, E., Fajar, M. & Handajani, M., Performance of Rapid Sand Filter ? Single Media to Remove Microplastics, Water Supply, 21(5), pp. 2273-2284, 2021.
Az-zahra, S., Dj, R.S. & Wardhani, E., The Characteristic of Raw Water Quality and Sludge as the Basic Design of Water Treatment Sludge Treatment Plant Badak Singa PDAM Tirtawening Bandung, Jurnal Reka Lingkungan, 2(2), pp. 93-102, 2014.
Crittenden, J.C., Trussell, R.R., Hand, D.W., Howe, K.J. & Tchobanoglous, G., Water Treatment Principles and Design Third Edition, John Wiley & Sons, Inc., 2012.
Droste, R.L., Theory and Practice of Water and Wastewater Treatment, John Wiley & Sons, New York, N.Y., 1997.
Notodarmojo, S., Soil and Ground Water Pollution, Penerbit ITB, 2005.
Reynolds, T.D. & Richards, P.A., Unit Operations and Processes in Environmental Engineering, 2nd Edition, PWS Publishing Company., 1996.
Crawford, C.B. & Quinn, B., Microplastic Pollutans 1st Edition. eBook Elseiver Science, 2017.
Hidayaturrahman, H., & Lee, T.G., A Study on Characteristics of Microplastic in Wastewater of South Korea: Identification, Quantification, and Fate of Microplastics during Treatment Process, Mar. Pollut. Bull., 146, pp. 696-702, 2019.
Cescon, A. & Jian, J.-Q., Filtration Process and Alternative Filter Media Material in Water Treatment, Water, 12, 3377, 2020.