[1]Shao Xinhang,Li Xiaoli,Wang Haijun,et al.Study on the Mechanism of Resistance to Water Erosion of Loose Pisha Sandstone Solidified by Microorganisms[J].Research of Soil and Water Conservation,2024,31(06):261-270.[doi:10.13869/j.cnki.rswc.2024.06.009]
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Study on the Mechanism of Resistance to Water Erosion of Loose Pisha Sandstone Solidified by Microorganisms
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
31
Number of periods:
2024 06
Page number:
261-270
Column:
Public date:
2024-12-10
- Title:
- Study on the Mechanism of Resistance to Water Erosion of Loose Pisha Sandstone Solidified by Microorganisms
- CLC:
- TU472; S157
- DOI:
- 10.13869/j.cnki.rswc.2024.06.009
- Abstract:
- [Objective]The aims of this study are to explore the effect of MICP solidified loose Pisha sandstone, and to provide solutions and theoretical basis for reducing soil erosion in Pisha sandstone area.[Methods]The effects of the bacterial solution concentration and curing frequency on the mechanical properties of MICP-cured Pisha sandstone and its resistance to water erosion were investigated at the macro-scale(penetration strength, rainfall erosion, etc), and the mechanism of water erosion resistance of Pisha sandstone-cured soil was revealed at the micro-scale(X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy, thermal analysis). [Results]For the same curing time, when the concentration of the bacterial liquid(OD600)was 0.8, the curing effect was the best, and its strength was increased by 20%～50% compared to the other concentrations. When the optimal concentration of the bacterial liquid was 0.8 and the curing frequency was five times, the Pisha sandstone attained a good strength and water erosion resistance, and the total rain erosion soil loss was reduced to 10% of the amount before curing. When the bacterial liquid concentration was 0.8, the calcium carbonate content was the greatest, and most of the calcite phase occurred as rhombic blocks and were more densely distributed. With increase of curing time, the cementation and filling effects improved. [Conclusion]The bacteria and their extracellular polymeric substances(EPS)in the MICP acted as nucleation sites, were involved in calcium carbonate localization and growth and development, and improved the stability of the calcium carbonate. The EPS, organic matter, calcium carbonate, and Pisha sandstone minerals involved in the formation of the intermolecular hydrogen bonds and other functional groups enhanced the cementation capacity of the calcium carbonate and further improved the strength of the Pisha sandstone and its resistance to water erosion.
- References:
-
[1]董晶亮,陈磊伟,郑福焱,等.砒砂岩的结构组成研究[J].华东交通大学学报,2022,39(5):10-19.
Dong J L, Chen L W, Zheng F Y, et al. Study on the structural composition of pisha sandstone[J]. Journal of East China Jiaotong University, 2022,39(5):10-19.
[2]张赢,李晓丽,常平,等.不同密度砒砂岩风化物坡面水蚀机理试验研究[J].排灌机械工程学报,2021,39(1):75-80,88.
Zhang Y, Li X L, Chang P, et al. Experiments on water erosion mechanism of weathered Pisha sandstone slope with different densities[J]. Journal of Drainage and Irrigation Machinery Engineering, 2021,39(1):75-80,88.
[3]梁止水,吴智仁,杨才千,等.基于W-OH的砒砂岩抗蚀促生机理研究[J].水利学报,2016,47(9):1160-1166.
Liang Z S, Wu Z R, Yang C Q, et al. Mechanism of erosion resistance and vegetation promotion by W-OH in Pisha sandstone[J]. Journal of Hydraulic Engineering, 2016,47(9):1160-1166.
[4]毕慈芬,王富贵,李学勇.砒砂岩区沙棘植物柔性坝野外试验研究综述[J].中国水土保持,2022(4):46-52.
Bi C F, Wang F G, Li X Y. Field test of seabuckthorn plant flexible dam in arsenic sandstone area[J]. Soil and Water Conservation in China, 2022(4):46-52.
[5]耿凯强,李晓丽.冻融循环下红色砒砂岩水泥土力学性能试验研究[J].排灌机械工程学报,2021,39(6):643-648.
Geng K Q, Li X L. Experimental study on mechanical properties of red Pisha-sandstone cement soil under freeze-thaw cycles[J]. Journal of Drainage and Irrigation Machinery Engineering, 2021,39(6):643-648.
[6]赵晓泽,李晓丽,申向东,等.基于SHPB的砒砂岩地聚物水泥复合土动态力学特性[J].农业工程学报,2021,37(17):310-316.
Zhao X Z, Li X L, Shen X D, et al. Dynamic mechanical properties of Pisha sandstone geopolymer cement composite soil using SHPB[J]. Transactions of the Chinese Society of Agricultural Engineering, 2021,37(17):310-316.
[7]包雪源,杨振奇,郭建英,等.黄河流域砒砂岩区典型水土保持植被生长特征及限制因素研究[J].西北林学院学报,2023,38(1):50-57.
Bao X Y, Yang Z Q, Guo J Y, et al. Growth characteristics and limiting factors of typical soil and water conservation vegetation in the feldspathic sandstone region of the Yellow River[J]. Journal of Northwest Forestry University, 2023,38(1):50-57.
[8]Al-Salloum Y, Abbas H, Sheikh Q I, et al. Effect of some biotic factors on microbially-induced calcite precipitation in cement mortar[J]. Saudi Journal of Biological Sciences, 2017,24(2):286-294.
[9]Hammes F, Boon N, de Villiers J, et al. Strain-specific ureolytic microbial calcium carbonate precipitation[J]. Applied and Environmental Microbiology, 2003,69(8):4901-4909.
[10]Keykha H A, Asadi A, Zareian M. Environmental factors affecting the compressive strength of microbiologically induced calcite precipitation-treated soil[J]. Geomicrobiology Journal, 2017,34(10):889-894.
[11]陈玥如,高文艳,陈虹任,等.场地重金属污染土壤固化及MICP技术研究进展[J].环境科学,2024,45(5):2939-2951.
Chen Y R, Gao W Y, Chen H R, et al. Research progress on solidification and MICP remediation of soils in heavy metal contaminated site[J]. Environmental Science, 2024,45(5):2939-2951.
[12]Feng Z J, Li X L. Microbially induced calcite precipitation and synergistic mineralization cementation mechanism of Pisha sandstone components[J]. The Science of the Total Environment, 2023,866:161348.
[13]尹黎阳,唐朝生,谢约翰,等.微生物矿化作用改善岩土材料性能的影响因素[J].岩土力学,2019,40(7):2525-2546.
Yin L Y, Tang C S, Xie Y H, et al. Factors affecting improvement in engineering properties of geomaterials by microbial-induced calcite precipitation[J]. Rock and Soil Mechanics, 2019,40(7):2525-2546.
[14]周惠.脲酶驱动不同晶型碳酸钙微纳米颗粒的制备[D].辽宁大连:大连理工大学,2021.
Zhou H. Urease-Driven Preparation of Calcium Carbonate Micro-Nanoparticles with Different Polymorphs[D].Dalian, Liaoning: Dalian University of Technology, 2021.
[15]翁诗甫.傅里叶变换红外光谱分析[M].2版.北京:化学工业出版社,2010.
Weng S F. Fourier Transform Infrared Spectrum Analysis[M]. 2nd ed. Beijing: Chemical Industry Press, 2010.
[16]陈慧佳,张慧卿,冯莹,等.海洋产脲酶细菌的筛选及诱导形成碳酸钙矿物的特征[J].现代地质,2022,36(1):212-220.
Chen H J, Zhang H Q, Feng Y, et al. Screening of marine urease-producing bacteria and characterization of their produced calcium carbonate minerals[J]. Geoscience, 2022,36(1):212-220.
[17]代娟娟,张玥.“一步法” 合成改性纳米碳酸钙及表征[J].现代化工,2011,31(S1):228-231.
Dai J J, Zhang Y. One-step synthesis and characterization of modification CaCO3 nanoparticles by one-step method[J]. Modern Chemical Industry, 2011,31(S1):228-231.
[18]夏静芬,钱国英,陈亮,等.珍珠粉和贝壳粉的化学成分和结构特征分析[J].化学研究与应用,2010,22(11):1467-1471.
Xia J F, Qian G Y, Chen L, et al. Analysis of chemical composition and structure characteristics of pearl and conch powders[J]. Chemical Research and Application, 2010,22(11):1467-1471.
[19]Zhan Q W, Yu X N, Pan Z H, et al. Microbial-induced synthesis of calcite based on carbon dioxide capture and its cementing mechanism[J]. Journal of Cleaner Production, 2021,278:123398.
[20]Saraya M E, Abdel Latif, Rokbaa H H. Preparation of vaterite calcium carbonate in the form of spherical nano-size particles with the aid of polycarboxylate superplasticizer as a capping agent[J]. Science and Education,2016,4(2):44-51.
[21]Luo J, Kong F T, Ma X S. Role of aspartic acid in the synthesis of spherical vaterite by the Ca(OH)2-CO2 reaction[J]. Crystal Growth & Design, 2016,16(2):728-736.
[22]Pei Y Y, An Q D, Xiao Z Y, et al. Biomass-based carbon beads with a tailored hierarchical structure and surface chemistry for efficient batch and column uptake of methylene blue[J]. Research on Chemical Intermediates, 2018,44(4):2867-2887.
[23]钟佳佳.生物大分子调控磷酸钙/碳酸钙的生长及其结晶[D].上海:复旦大学,2014.
Zhong J J. Growth and Crystallization of Calcium Phosphate and Calcium Carbonate Mediated by Biomacromolecules[D]. Shanghai: Fudan University, 2014.
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Last Update:
2024-12-10