ANALISIS KARAKTERISTIK FILTRASI DAN EFISIENSI ADSORPSI AMONIUM PADA SISTEM FILTER BIOCHAR TERAKTIVASI Mg2+
DOI:
https://doi.org/10.36733/jeco.v6i1.13816Keywords:
Ammonium, Mg2+-Activated Biochar, Filtration, Head Loss, HRTAbstract
The increasing concentration of ammonium (NH4+) in domestic wastewater contributes to eutrophication, depletion of dissolved oxygen, and disruption of aquatic ecosystem balance. Continuous treatment systems often face operational stability challenges due to fluctuations in flow rate and pollutant loading, thereby requiring filtration technologies that are both effective and hydraulically stable. This study aimed to analyze the filtration characteristics and ammonium adsorption efficiency of an upflow Mg2+-activated biochar filter system arranged in four serial compartments. Wood-based biochar was chemically modified using a 4.2 g/L MgCl2.6H2O solution for 70 minutes. The system was operated continuously for six days at a constant flow rate of 100 mL/min using domestic wastewater with ammonium concentrations ranging from 27.74 to 42.73 mg/L. The results showed a head loss of 0.0267 m per compartment and a total of 0.1068 m, indicating stable hydraulic conditions without significant clogging. The average hydraulic retention time (HRT) was 1.79 hours per compartment (9.78 hours total), providing adequate contact time for adsorption. Ammonium adsorption efficiency reached 94.28–96.53% and increased progressively across the compartments. It can be concluded that the Mg2+-activated biochar filter system demonstrated favorable hydraulic performance and high ammonium adsorption efficiency under continuous operation.
References
Abd Lahin, F., Sarbatly, R., & Chel-Ken, C. (2021). Point-of-use Upflow Sand Filter for Rural Water Treatment Using Natural Local Sand: Understanding and Predicting Pressure Drop. IOP Conference Series: Materials Science and Engineering, 1192(1), 012008. https://doi.org/10.1088/1757-899x/1192/1/012008
Al-Ani, M., & Al-Dahhan, M. (2021). Effect of Catalyst Shape on Pressure Drop and Liquid Holdup in A Pilot Plant Trickle Bed Reactor. Fuel, 284. https://doi.org/10.1016/j.fuel.2020.118860
Blanco-Canqui, H. (2017). Biochar and Soil Physical Properties. Soil Science Society of America Journal, 81(4), 687–711. https://doi.org/10.2136/sssaj2017.01.0017
Boettcher, K. E. R., Fischer, M. D., Neumann, T., & Ehrhard, P. (2022). Experimental Investigation of the Pre–Darcy Regime. Experiments in Fluids, 63(2). https://doi.org/10.1007/s00348-022-03387-9
Chen, S., Dougherty, M., Chen, Z., Zuo, X., & He, J. (2021). Managing Biofilm Growth and Clogging to Promote Sustainability in an Intermittent Sand Filter (ISF). Science of The Total Environment, 755, 142477. https://doi.org/10.1016/j.scitotenv.2020.142477
Daud, Z., Suhani, N., Maya Saphira Radin Mohamed, R., & Awang, H. (2017). Feasibility of Banana (Musa sapientum) Trunk Biofibres for Treating Kitchen Wastewater. Nature Environment and Pollution Technology, 6(4), 1205–1210.
Edeh, I. G., Mašek, O., & Buss, W. (2020). A Meta-analysis on Biochar’s Effects on Soil Water Properties – New Insights and Future Research Challenges. Science of The Total Environment, 714, 136857. https://doi.org/10.1016/j.scitotenv.2020.136857
Fronczyk, J. (2020). Properties of Reactive Materials for Application in Runoff Water Treatment Systems. Journal of Ecological Engineering, 21(8), 185–197. https://doi.org/10.12911/22998993/126988
González, E. J., & Roldán, G. (2019). Eutrophication and Phytoplankton: Some Generalities from Lakes and Reservoirs of the Americas. In M. Vítová (Ed.), Microalgae - From Physiology to Application (2). IntechOpen. https://doi.org/10.5772/intechopen.89010
Lehmann, J., & Joseph, S. (2015). Biochar for Environmental Management: Science, Technology and Implementation (2nd ed.). Routledge.
Li, D.-Y., Cho, Y.-C., Hsu, M. H., & Lin, Y.-P. (2022). Recovery of Phosphate and Ammonia from Wastewater via Struvite Precipitation Using Spent Refractory Brick Gravel from Steel Industry. Journal of Environmental Management, 302. https://doi.org/10.1016/j.jenvman.2021.114110
Lu, Y., Cheung, S., Koh, X. P., Xia, X., Jing, H., Lee, P., Kao, S. J., Gan, J., Dai, M., & Liu, H. (2023). Active Degradation-nitrification Microbial Assemblages in the Hypoxic Zone in a Subtropical Estuary. Science of the Total Environment, 904. https://doi.org/10.1016/j.scitotenv.2023.166694
Metcalf, & Eddy. (2014). Wastewater Engineering: Treatment and Resource Recovery. McGraw-Hill Education. https://books.google.co.id/books?id=6KVKMAEACAAJ
Patel, H. (2019). Fixed-bed Column Adsorption Study: A Comprehensive Review. In Applied Water Science (Vol. 9, Number 3). Springer Verlag. https://doi.org/10.1007/s13201-019-0927-7
Tan, X., Liu, Y., Zeng, G., Wang, X., Hu, X., Gu, Y., & Yang, Z. (2015). Application of Biochar for the Removal of Pollutants from Aqueous Solutions. Chemosphere, 125, 70–85. https://doi.org/10.1016/j.chemosphere.2014.12.058
Wijaya, I. M. W. (2025). Adsorption Kinetics and Isotherm Study of Ammonium and Phosphate Removal Using Magnesium-Activated Biochar. Journal of Ecological Engineering, 26(6), 62–75. https://doi.org/10.12911/22998993/201996
Xie, Y., Wu, J., Hu, H., Liu, S., Xie, X., Huang, J., & Han, Z. (2024). Boosting Synergistic Recovery of Ammonia Nitrogen and Phosphate from Phosphorus Chemical Wastewater by Co-pyrolyzing the Biomass and Magnesite. Separation and Purification Technology, 347. https://doi.org/10.1016/j.seppur.2024.127645
Yao, A. K. Z., Jiun, L. W., Yong, L. C., Shi, C. Y., & Seng, O. B. (2022). Ammonium Sorption and Regeneration Using Mg-modified Zeolites: A Study on the Interferences of Competing Ions from Aquaculture Effluent. Journal of Water Process Engineering, 48, 102909. https://doi.org/10.1016/j.jwpe.2022.102909
