State-of-the-art review of soil erosion control by MICP and EICP techniques: Problems, applications, and prospects

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 912, P. 169016 - 169016

Published: Dec. 1, 2023

Language: Английский

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Unlocking the Potential of Microbially Induced Calcium Carbonate Precipitation (MICP) for Hydrological Applications: A Review of Opportunities, Challenges, and Environmental Considerations

Hydrology, Journal Year: 2023, Volume and Issue: 10(9), P. 178 - 178

Published: Aug. 26, 2023

Microbially induced calcium carbonate precipitation (MICP) is an innovative biocementation technique that facilitates the formation of within a pore network. Initially gaining prominence in field geotechnical engineering, MICP has attracted significant attention since its inception (the last three decades) and expanded reach across various engineering disciplines. Examples include rock mechanics, geology oil gas industry fields through generation rock-like specimens, plugging fractures, civil architectural material science for concrete repair, protection, self-healing building materials, environmental study biomimetic materials. In response to this burgeoning interest, current paper aims present comprehensive review main biochemical mechanisms underlying (bacterial ureolytic activity, reactions duration settling times, chemical solution properties), their direct relevance altering hydraulic mechanical properties, both at microscale macroscale responses, mechanisms, particularly relation water resources hydrology applications. Four categories relevant applications are identified, namely, groundwater soil remediation, related low conductivity barrier, those cohesion, fluid flow studies artificially generated porous media. Moreover, not only identify existing hydrological but also strives propose novel promising can further expand utility domain. Along with investigation potential revolutionize hydrology, it imperative delve deeper into implications ensure sustainable ecologically responsible implementation.

Language: Английский

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Fiber-reinforced microbially induced carbonate precipitation (MICP) for enhancing soil stability: Mechanisms, effects, and future prospects

Journal of Building Engineering, Journal Year: 2024, Volume and Issue: 94, P. 109955 - 109955

Published: June 14, 2024

Microbially induced calcium carbonate precipitation (MICP) is an emerging technology proposed for soil improvement in recent years. It has environmental protection and sustainability advantages. Reinforcing fiber can effectively improve the flexibility of MICP-treated sandy material. The MICP synergistic solidified sand research results have attracted significant attention recently. This paper introduces reaction mechanism curing method MICP, including injecting soaking, spraying, pre-mixing, single-phase, step-by-step injection methods. summarizes effect various fibers, jute fiber, animal polypropylene carbon polyester polyvinyl alcohol (PVA), on sand. project summarized following results: 1) two-step improves uniformity distribution sample. 2) Adding provided more adsorption sites bacteria increased nucleation sites; 3)The fibrous network structure sample, combined with 'bridge' effect, efficient preventing cracks from expanding samples; 4) friction cohesion between itself column overall stability sample; 5) coupling sand, generated tensile strength (TS) specimens; 6) For two factors content length, unconfined compressive (UCS) greater than length. Fiber type influenced Meanwhile, development prospect was pointed out, influence pretreatment modification effect; mixed, uniform method; 3) mixing fibers properties cured specimens.

Language: Английский

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Effects of representative elementary volume size on three-dimensional pore characteristics for modified granite residual soil

Journal of Hydrology, Journal Year: 2024, Volume and Issue: unknown, P. 132006 - 132006

Published: Sept. 1, 2024

Language: Английский

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A comprehensive review on the application of microbially induced calcite precipitation (MICP) technique in soil erosion mitigation as a sustainable and environmentally friendly approach

Results in Engineering, Journal Year: 2024, Volume and Issue: 24, P. 103235 - 103235

Published: Oct. 25, 2024

Language: Английский

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Sustainable improvement of granite sludge dust properties using microbially induced carbonate precipitation (MICP): strength enhancement, erosion prevention, and dust mitigation

Environmental Science and Pollution Research, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 4, 2025

Language: Английский

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Advancing Slope Stability and Hydrological Solutions Through Biocementation: A Bibliometric Review

Hydrology, Journal Year: 2025, Volume and Issue: 12(1), P. 14 - 14

Published: Jan. 13, 2025

Biocementation is an innovative and sustainable technique with wide-ranging applications in slope stabilization, watershed management, erosion control. Despite its potential, comprehensive evaluations of use hydrology geotechnical engineering are limited. This study addresses this gap through a bibliometric analysis 685 articles (2013–2023) from the Scopus database, employing VOSviewer RStudio to explore global research trends, key contributors, emerging themes. The reveals that China, United States, Japan leading contributors field, significant advancements microbial-induced (MICP) enzyme-induced calcium carbonate precipitation (EICP) techniques. These methods have demonstrated effectiveness improving soil strength, reducing erosion, enhancing hydrological properties such as infiltration, runoff control, water retention. Co-occurrence identifies interdisciplinary connections between geotechnics hydrology, highlighting clusters focused on biomineralization, resistance, durability. findings underscore biocementation’s pivotal role addressing sustainability challenges by providing environmentally friendly alternatives traditional stabilization not only maps current landscape but also offers valuable insights into practical implications biocementation for stability laying foundation future practices.

Language: Английский

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Comparison of biomineralization kinetics induced by bacteria, bacterial enzyme, and soybean enzyme

Acta Geotechnica, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 27, 2025

Language: Английский

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Desiccation cracking remediation through enzyme induced calcite precipitation in fine-grained soils under wetting drying cycles

Biogeotechnics, Journal Year: 2023, Volume and Issue: 1(4), P. 100049 - 100049

Published: Sept. 27, 2023

The effects of desiccation cracking in clay soils on geotechnical constructions are substantial. This study investigates the viability utilizing Enzyme-induced calcite precipitation (EICP), a bio inspired approach, as potential solution for addressing fine-grain soils. For EICP technique, crude soybean extract is employed purpose urea hydrolysis. Multiple fluid samples, including control sample, cementation containing 1 M urea, 0.675 CaCl2, and 4 g/L milk, along with various concentrations enzyme solutions (3 to 80 g/L), were tested study. To evaluate surface patterns, method involved constant monitoring photo recording using high-resolution camera aided by image processing software. results showed that improved from increased decreased intensity when was used. Cementation low 10 g/L) had similar crack remediation, suggesting modest influence. In contrast sample treated water, network remained unaltered this case. CaCO3 within void area kept place even thickness at increasing (30 g/L, 50 g/L). Wetting drying cycles found decrease ratio, width, length EICP-treated particularly under higher urease enzyme. Lower 3 have minimal impact remediation but effectively inhibit new formation. Furthermore, result calcium carbonate precipitates, forming soil crust roughness. aims enhance understanding methodology provide novel perspectives uses enhancement.

Language: Английский

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Improved methods, properties, applications and prospects of microbial induced carbonate precipitation (MICP) treated soil: A review

Biogeotechnics, Journal Year: 2024, Volume and Issue: 3(1), P. 100123 - 100123

Published: July 18, 2024

Soil improvement is one of the most important issues in geotechnical engineering practice. The wide application traditional techniques (cement/chemical materials) are limited due to damage ecological environment and intensify carbon emissions. However, use microbial induced calcium carbonate precipitation (MICP) obtain bio-cement a novel technique with potential induce soil stability, providing low-carbon, environment-friendly, sustainable integrated solution for some problems environment. This paper presents comprehensive review latest progress based on MICP strategy. It systematically summarizes overviews mineralization mechanism, influencing factors, improved methods, characteristics, current field status MICP. Additionally, it also explores limitations correspondingly proposes prospective applications via approach improvement. indicates that utilization different environmental calcium-based wastes combination materials conducive meeting market demand. Furthermore, we recommend encourage global collaborative study practice view commercializing future. purports provide insights engineers interdisciplinary researchers, guidance future applications.

Language: Английский

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