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Enhancing Geotechnical Properties of Ahvaz Fine Soil with Biochar: A Preliminary Study for Landfill Cover Systems | ||
| AUT Journal of Civil Engineering | ||
| دوره 8، شماره 2، 2024، صفحه 93-108 اصل مقاله (1.26 M) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22060/ajce.2025.23389.5874 | ||
| نویسندگان | ||
| Akram Mirmongereh؛ Mhammad Sirous Pakbaz؛ Hossein Sasani* | ||
| Department of Civil Engineering, Faculty of Civil Engineering and Architecture, Shahid Chamran University of Ahvaz, Ahvaz, Iran. | ||
| چکیده | ||
| The final cover of a landfill is crucial for preventing rainwater infiltration, snowmelt, and greenhouse gas emissions while complying with regulatory standards. Effective landfill covers can be made from various materials, including modified clay, to enhance soil properties. This study investigates the effects of biochar on enhancing the geotechnical properties of fine soil in Ahvaz for potential use in landfill cover systems. Different biochar percentages (7%, 12%, and 20%) were analyzed for their impact on key soil properties, including residual shear strength, permeability, unconfined compressive strength (UCS), swelling index, and compaction characteristics. The results show that the addition of biochar improves the shear strength, with the most significant increase observed at 12% biochar (70% improvement compared to untreated soil). However, beyond this percentage, the strength improvement rate declines. Furthermore, higher biochar content increases permeability and reduces UCS. The study identifies 7% biochar as the optimal content, providing a balance between strength enhancement and minimizing negative effects on other soil properties such as permeability and compressibility. This study demonstrates that biochar can be a valuable additive for landfill cover systems, though careful consideration of its concentration is essential to avoid compromising hydraulic performance. These findings provide valuable insights for geotechnical engineering applications, particularly in regions with similar soil conditions to Ahvaz. | ||
| کلیدواژهها | ||
| Landfill؛ Biochar؛ Final Cover؛ Ahvaz Soil؛ Geotechnical Characteristics | ||
| مراجع | ||
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[1] R.G. Maryam Pazoki Municipal Landfill Leachate Management, Springer Cham, 2020.
[2] K. Xu, B. Yang, J. Wang, M. Wu, Improvement of mechanical properties of clay in landfill lines with biochar additive, Arabian Journal of Geosciences, 13 (2020) 1-12.
[3] X.-P. Sun, Z.-H. Ding, Y.-Z. Bi, S.-y. Pu, Experimental investigation on water/gas resistance and strength properties of clinoptilolite/na-paa amended compacted clay cover, Geomechanics and Geophysics for Geo-Energy and Geo-Resources, 9(1) (2023) 66.
[4] M. Regadío García, J.A. Black, S.F. Thornton, The role of natural clays in the sustainability of landfill liners, Detritus, 12 (2020) 100-113.
[5] B. Soundara, D.V. Kumar, N. Praveen, M. Ranjith, E.N. Raj, Geotechnical Characterization of Sugarcane Bagasse Biochar-Amended Landfill Cover Soil, in: Recent Advances in Structural Engineering and Construction Management: Select Proceedings of ICSMC 2021, Springer, 2022, pp. 531-540.
[6] W.-J. Sun, M.-Y. Li, W.-J. Zhang, Y.-Z. Tan, Saturated permeability behavior of biochar-amended clay, Journal of Soils and Sediments, 20 (2020) 3875-3883.
[7] Y. Lu, K. Gu, Z. Shen, C.-S. Tang, B. Shi, Q. Zhou, Biochar implications for the engineering properties of soils: A review, Science of The Total Environment, 888 (2023) 164185.
[8] X. Bian, Z. Ren, L. Zeng, F. Zhao, Y. Yao, X. Li, Effects of biochar on the compressibility of soil with high water content, Journal of Cleaner Production, 434 (2024) 140032.
[9] Z. Chen, V. Kamchoom, A.K. Leung, J. Xue, R. Chen, Influence of biochar on the water permeability of compacted clay subjected to freezing–thawing cycles, Acta Geophysica, 72(3) (2024) 2071-2081.
[10] K.N. Manahiloh, V.N. Kaliakin, K. Verdi, Evaluation of Biochar as a Soil Improvement Additive to Mid-Atlantic Expansive Clay, in: Geo-Congress 2024, pp. 442-449.
[11] S.K. Yadav, R. Bag, Effect of Bamboo biochar on strength and water retention properties of low plastic clay and silty sand, Scientific Reports, 13(1) (2023) 6201.
[12] R. Hussain, K. Ravi, Investigating biochar-amended soil as a potential lightweight material for embankments, Ecological Engineering, 180 (2022) 106645.
[13] Y. Wan, Z. Dong, X. He, R. Liu, Y. Cai, L. Liu, L. Qin, Q. Xue, Effect of biochar on permeability of compacted soil and its microscopic mechanism, Canadian Geotechnical Journal, 59(12) (2022) 2184-2195.
[14] R. Hussain, K. Ravi, A. Garg, Influence of biochar on the soil water retention characteristics (SWRC): Potential application in geotechnical engineering structures, Soil and Tillage Research, 204 (2020) 104713.
[15] S.P. Ganesan, S. Bordoloi, J. Ni, T. Sizmur, A. Garg, S. Sekharan, Exploring implication of variation in biochar production on geotechnical properties of soil, Biomass Conversion and Biorefinery, (2020) 1-11.
[16] Y. Zhang, K. Gu, J. Li, C. Tang, Z. Shen, B. Shi, Effect of biochar on desiccation cracking characteristics of clayey soils, Geoderma, 364 (2020) 114182.
[17] M. Jyoti Bora, S. Bordoloi, H. Kumar, N. Gogoi, H.-H. Zhu, A.K. Sarmah, P. Sreeja, S. Sreedeep, G. Mei, Influence of biochar from animal and plant origin on the compressive strength characteristics of degraded landfill surface soils, International Journal of Damage Mechanics, 30(4) (2021) 484-501.
[18] Y. Zong, D. Chen, S. Lu, Impact of biochars on swell–shrinkage behavior, mechanical strength, and surface cracking of clayey soil, Journal of Plant Nutrition and Soil Science, 177(6) (2014) 920-926.
[19] K.R. Reddy, P. Yaghoubi, Y. Yukselen-Aksoy, Effects of biochar amendment on geotechnical properties of landfill cover soil, Waste Management & Research, 33(6) (2015) 524-532.
[20] K. Terzaghi, R.B. Peck, G. Mesri, Soil mechanics in engineering practice, John wiley & sons, 1996.
[21] K.K. Askarani, M.S. Pakbaz, Drained shear strength of over-consolidated compacted soil-cement, Journal of Materials in Civil Engineering, 28(5) (2016) 04015207.
[22] H. Blanco-Canqui, Biochar and soil physical properties, Soil Science Society of America Journal, 81(4) (2017) 687-711.
[23] S.-H. Jien, C.-S. Wang, Effects of biochar on soil properties and erosion potential in a highly weathered soil, Catena, 110 (2013) 225-233.
[24] G. Baiamonte, G. Crescimanno, F. Parrino, C. De Pasquale, Effect of biochar on the physical and structural properties of a sandy soil, Catena, 175 (2019) 294-303.
[25] J.M. Williams, N. Latifi, F. Vahedifard, Effects of biochar amendment on mechanical properties of buckshot clay, in: IFCEE 2018, 2018, pp. 125-134.
[26] D. Liu, W. Sun, Y. Kong, S. Zhang, Effect of dry and wet cycles on the strength characteristics of biochar–clay mixture, Processes, 11(3) (2023) 970.
[27] Y. Zhang, K. Gu, C. Tang, Z. Shen, G.R. Narala, B. Shi, Effects of biochar on the compression and swelling characteristics of clayey soils, International Journal of Geosynthetics and Ground Engineering, 6 (2020) 1-8.
[28] R. Kumar, S. Kumari, Geotechnical properties of materials used in landfill clay liner: A critical review, Sādhanā, 48(2) (2023) 64.
[29] T. Lim, K. Spokas, G. Feyereisen, J. Novak, Predicting the impact of biochar additions on soil hydraulic properties, Chemosphere, 142 (2016) 136-144.
[30] B. Yang, K. Xu, Z. Zhang, Mitigating evaporation and desiccation cracks in soil with the sustainable material biochar, Soil Science Society of America Journal, 84(2) (2020) 461-471. | ||
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آمار تعداد مشاهده مقاله: 423 تعداد دریافت فایل اصل مقاله: 539 |
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