Reducing soil permeability for TPA (Final Disposal Site) using Bacillus subtilis mycobacteria
Article Sidebar
Main Article Content
Abstract
Abstrack This study evaluates the effectiveness of using Bacillus subtilis bacteria in reducing soil permeability rates in landfill areas. The primary issue faced at landfills is groundwater contamination caused by leachate seepage due to high soil permeability. Conventional approaches, such as using synthetic liners, have limitations, necessitating the development of more sustainable alternative methods. Bacillus subtilis microbacteria were used in this study. The soil inoculated with bacteria underwent an incubation period of 3 days. This study aimed to determine the reduction in permeability values by comparing bacteria-affected soil with untreated soil as a control. SEM testing was conducted to observe the soil structure affected by bacteria after a 3-day incubation period with 15% cementation solution and 5% sand. Bacillus subtilis bacteria were found to reduce soil permeability rates, achieving a result of 1.612x10⁻⁷ for swamp soil with a 15% cementation solution (bacterial reagent) and 5% sand, as well as 9.791x10⁻⁸ for laterite soil with the same cementation solution and sand composition.
Article Details
This work is licensed under a Creative Commons Attribution 4.0 International License.
References
Budiyanto, M.A.K. 2002. Applied Microbiology. UMM Press. Malang.
Fadliah, I., 2013. Experimental Study of Biogrouting Stabilization of Bacillus subtilis
on Sandy Clay Soil. Thesis. Postgraduate Program, Hasanuddin University, Makassar. [3] Fatoni, M., 2014. Review of Unconfined Compressive Strength and Permeability of Clay Soil Stabilized with Lime and Bagasse Ash. Faculty of Civil Engineering,
Muhammadiyah University of Surakarta.
Graumann, P. 2007. Bacillus: Cellular and Molecular Biology. Caister Academic press. [5] Handayani, M., 2014. Study of Effectiveness of Reducing Permeability and Increasing Shear Strength of Beach Sandy Soil Using Exopolysaccharide Biopolymer. Malang,
Brawijaya University
Haryani, D.H. Study of the Effectiveness of Reducing Permeability and Increasing Shear Strength Using Extracellular Microbacterial Polysaccharides on River Sand Material. Journal. Department of Irrigation, Brawijaya University
Madigan M. T., J. Martinko, J. Parker, et al. 2003, Brock Biology of Microorganisms,
th ed., Pearson Education, Inc., New York.
Purwoko, 2007. Microbial Physiology. Bumi Aksara: Jakarta.
Puspita, L., 2011. Bacterial Carbonate Precipitation for Biogrouting. Proceedings of the
National Symposium on Ecohydrology, PP 219-232.
Soedarmo, G. D. et al., S. J. E. 1997. Soil Mechanics I. Yogyakarta: Kanisius.
Thomas. E., 2016. Study of the Effect of Microbacteria on the Permeability and Shear Strength of Clay Soil with Variations in Curing Time. Surakarta, Sebelas Maret University, Surakarta.
American Society for Testing and Materials. Standard Test Method for Standard
Classification of Peat Samples by Laboratory Testing. ASTM designation: D-4427.
Philadelphia. PA.
American Society for Testing and Materials. 2000. Standard Test Methods for Moisture, Ash, and Organic Matter of Peat and Other Organic Soils. ASTM designation: D-2974-
Philadelphia. PA.
ASTM Standart (1994), Section 4, Construction: Volume 04.08 dan 04.09, Soils and
Rock, American Society for Testing and Materials. Philadelphia, USA
Bowles, J. E. (1986). Physical and geotechnical properties of soil. (J. K. Hainim, Trans). [16] Jakarta: Erlangga.
Bowles, J. E. (1992). Analysis and Design of Foundations Fourth Edition Volume I.
Jakarta: Erlangga.
Budi (2011). Soil Testing in the Laboratory Explanation and Guide. Graha Ilmu.
Yogyakarta.
Darmawijaya. (1997). Soil Classification. UGM Press: Yogyakarta.
Das, B. M. (1988). Soil Mechanics (Principles of Geotechnical Engineering) Volume 1, Erlangga: Jakarta.
Das, B. M. (1988). Soil Mechanics (Principles of Geotechnical Engineering) Volume 2, Erlangga: Jakarta.
Das, B. M. (1995). Soil Mechanics and Geotechnical Engineering Principles. Publisher
Erlangga: Jakarta
DeJong, J. T., Fritzges, M. B., and Nüsslein, K. (2006). Microbially Induced Cementation to Control Sand Response to Undrained Shear. J. Geotech. Geoenviron. Eng., 132(11):1381-1392.
Rusdiansyah (2024). Improvement of Laterite Soil Characteristics. Publisher Manggu
Makmur Tanjung Lestari: Bandung