Evaluation of Bacillus Brevis in Microbial-Induced Calcite Precipitation of Threshold Friction Velocity and Crust Thickness for Wind Erosion Control of Aeolian Soil

A. M. Garba, M. Abubakar, K. J. Osinubi, A. O. Eberemu and T. S. Ijimdiya
Additional contact information
A. M. Garba: Graduate student, Ahmadu Bello University Zaria, Kaduna State, Nigeria
M. Abubakar: Professor, Ahmadu Bello University Zaria, Kaduna State, Nigeria, Professor, Ahmadu Bello University and Africa Center of Excellence on New Pedagogies in Engineering Education (ACENPEE), Kaduna State, Nigeria Professor, Ahmadu Bello University Zaria, Kaduna State, Nigeria
K. J. Osinubi: Professor, Ahmadu Bello University Zaria, Kaduna State, Nigeria, Professor, Ahmadu Bello University and Africa Center of Excellence on New Pedagogies in Engineering Education (ACENPEE), Kaduna State, Nigeria
A. O. Eberemu: Professor, Ahmadu Bello University Zaria, Kaduna State, Nigeria, Professor, Ahmadu Bello University and Africa Center of Excellence on New Pedagogies in Engineering Education (ACENPEE), Kaduna State, Nigeria
T. S. Ijimdiya: Professor, Ahmadu Bello University Zaria, Kaduna State, Nigeria, Professor, Ahmadu Bello University and Africa Center of Excellence on New Pedagogies in Engineering Education (ACENPEE), Kaduna State, Nigeria

International Journal of Research and Innovation in Applied Science, 2025, vol. 10, issue 1, 405-413

Abstract: An eco-friendly method of soil improvement known as Microbial Induced Calcite Precipitation (MICP) has received significant recognition in the past decade. This study presents a report on the capability of MICP in modifying the threshold friction velocity (TFV) and soil crust thickness of aeolian soil bio-treated at various suspension densities of a ureolytic microorganisms – Bacillus brevis (B. brevis) and cementation reagent of varying concentration. The B. brevis suspension densities and cementation reagents used to trigger the MICP process are 0, 0.5, 2.0, 4.0, 6.0 and 8.0 McFarland standards (i.e., 0, 1.50 × 108, 6.0 × 108, 1.20 × 109, 1.80 × 109 and 2.40 × 109 cells/ml and 0.25, 0.5, 0.75 and 1.0 M, respectively. The results at various B. brevis suspension densities and cementation reagent concentration indicated improvement in threshold friction velocity (TFV) and soil crust thickness of aeolian soil bio-treated. Bio-treatment of aeolian with 6.0 x 108 cells/ml – 0.75 M mix ratio improved the critical threshold friction velocity (TFV) of natural aeolian soil from 13.6 m/s to 18.2 m/s similarly, the soil crust thickness of the bio-treated aeolian soil specimens with 6 x 108 cells/ml – 0.75 M and subjected to the maximum wind speed load of 20 m/s improved from the natural powdery form with no crust thickness to 90 mm. these parameters contributed significantly in improving wind-induced resistance.

Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.rsisinternational.org/journals/ijrias/ ... -issue-1/405-413.pdf (application/pdf)
https://rsisinternational.org/journals/ijrias/arti ... rol-of-aeolian-soil/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:bjf:journl:v:10:y:2025:i:1:p:405-413

Access Statistics for this article

International Journal of Research and Innovation in Applied Science is currently edited by Dr. Renu Malsaria

More articles in International Journal of Research and Innovation in Applied Science from International Journal of Research and Innovation in Applied Science (IJRIAS)
Bibliographic data for series maintained by Dr. Renu Malsaria ().