Bio-mediated method for improving surface erosion resistance of clayey soils

Liu, Bo; Xie, Yi; Tang, Chaosheng; Pan, Xiaohua; Jiang, Ning-Jun; Singh, Devendrá; Cheng, Yao-Jia; Shi, Bin

doi:10.1016/j.enggeo.2021.106295

Cited by 49 publications

(9 citation statements)

References 65 publications

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“…Heavy metal contamination in the soil and underground water seriously threatens surrounding fragile environments and human health ( Kim et al, 2001 ; Mohan et al, 2006 ; Bai et al, 2017 ; Chang et al, 2019 ; Chen et al, 2022a ; Hu et al, 2020 ; Bai et al, 2021 ; Hu et al, 2021 ; Liu et al, 2021 ; Xue et al, 2021 ; Hu et al, 2022 ; Wang et al, 2022 ). Such heavy metal contamination remediation by the traditional soil flushing measure is deemed time-consuming and costly since heavy metal ions are easily adsorbed by soil particles, and intensive industrial activities further aggravate heavy metal contamination ( Yang et al, 2014 ; An et al, 2019 ; Kumar and Dwivedi, 2019 ; Bai et al, 2021 ; Cheng et al, 2021 ; Duan et al, 2021 ; Wei et al, 2021 ; Yuan et al, 2021 ; Chen et al, 2022b ).…”

Section: Introductionmentioning

confidence: 99%

Effects of the Urease Concentration and Calcium Source on Enzyme-Induced Carbonate Precipitation for Lead Remediation

et al. 2022

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Heavy metal contamination during the rapid urbanization process in recent decades has notably impacted our fragile environments and threatens human health. However, traditional remediation approaches are considered time-consuming and costly, and the effect sometimes does not meet the requirements expected. The present study conducted test tube experiments to reproduce enzyme-induced carbonate precipitation applied to lead remediation under the effects of urease concentration and a calcium source. Furthermore, the speciation and sequence of the carbonate precipitation were simulated using the Visual MINTEQ software package. The results indicated that higher urease concentrations can assure the availability of CO32− during the enzyme-induced carbonate precipitation (EICP) process toward benefiting carbonate precipitation. The calcium source determines the speciation of carbonate precipitation and subsequently the Pb remediation efficiency. The use of CaO results in the dissolution of Pb(OH)2 and, therefore, discharges Pb ions, causing some difficulty in forming the multi-layer structure of carbonate precipitation and degrading Pb remediation. The findings of this study are useful in widening the horizon of applications of the enzyme-induced carbonate precipitation technology to heavy metal remediation.

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Section: Introductionmentioning

confidence: 99%

Effects of the Urease Concentration and Calcium Source on Enzyme-Induced Carbonate Precipitation for Lead Remediation

et al. 2022

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“…The MICP protection layer provides considerable durability with little negative impact on the air permeability and color of the sample. Plus, MICP-based coastal erosion control is a type of soft structural protection which has gained strong interest in recent years (Imran et al 2019 ; Shahin et al 2020 ; Liu et al 2021a , b ).…”

Section: Hydraulic Engineeringmentioning

confidence: 99%

“…Amongst lots of biogeotechnical engineering technologies, microbial-induced carbonate precipitation (MICP) acts as an innovative sustainable biomineralization technology (Fig. 1 ) and attracts wide attentions due to its feasibility and convenience in various fields (Chu et al 2011 ; Liu et al 2021a , b ; Martinez et al 2021 ; Zeng et al 2021 ), including geotechnical engineering, hydraulic engineering, geological engineering, ocean engineering, and environmental engineering (Terzis and Laloui 2019 ; Cheng et al 2021 ; Matsubara 2021 ; Sharma et al 2021 ). The MICP technology makes use of specific strains of bacteria which widely exist in nature and can deposit calcium carbonate through metabolic activities (Ramakrishnan et al 2001 ; Dhami et al 2013 ; Salifu et al 2016 ; Gardoso et al 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Microbial‑induced carbonate precipitation (MICP) technology: a review on the fundamentals and engineering applications

et al. 2023

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The microbial‑induced carbonate precipitation (MICP), as an emerging biomineralization technology mediated by specific bacteria, has been a popular research focus for scientists and engineers through the previous two decades as an interdisciplinary approach. It provides cutting-edge solutions for various engineering problems emerging in the context of frequent and intense human activities. This paper is aimed at reviewing the fundaments and engineering applications of the MICP technology through existing studies, covering realistic need in geotechnical engineering, construction materials, hydraulic engineering, geological engineering, and environmental engineering. It adds a new perspective on the feasibility and difficulty for field practice. Analysis and discussion within different parts are generally carried out based on specific considerations in each field. MICP may bring comprehensive improvement of static and dynamic characteristics of geomaterials, thus enhancing their bearing capacity and resisting liquefication. It helps produce eco-friendly and durable building materials. MICP is a promising and cost-efficient technology in preserving water resources and subsurface fluid leakage. Piping, internal erosion and surface erosion could also be addressed by this technology. MICP has been proved suitable for stabilizing soils and shows promise in dealing with problematic soils like bentonite and expansive soils. It is also envisaged that this technology may be used to mitigate against impacts of geological hazards such as liquefaction associated with earthquakes. Moreover, global environment issues including fugitive dust, contaminated soil and climate change problems are assumed to be palliated or even removed via the positive effects of this technology. Bioaugmentation, biostimulation, and enzymatic approach are three feasible paths for MICP. Decision makers should choose a compatible, efficient and economical way among them and develop an on-site solution based on engineering conditions. To further decrease the cost and energy consumption of the MICP technology, it is reasonable to make full use of industrial by-products or wastes and non-sterilized media. The prospective direction of this technology is to make construction more intelligent without human intervention, such as autogenous healing. To reach this destination, MICP could be coupled with other techniques like encapsulation and ductile fibers. MICP is undoubtfully a mainstream engineering technology for the future, while ecological balance, environmental impact and industrial applicability should still be cautiously treated in its real practice.

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“…Microbial-induced calcite precipitation (MICP) is an innovative technology among engineering developments. Its appeal is based mainly on simplicity and environmental friendliness [1,2]. Technologies are actively being developed to prevent the liquefaction of sandy soil and the processes of slope destruction, repair cracks in cement-concrete structures and reduce erosion [3,4].…”

Section: Introductionmentioning

confidence: 99%

Integration of Organic Waste for Soil Stabilization through MICP

Golovkina,

Zhurishkina,

Filippova

et al. 2023

Applied Sciences

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Microbial-induced calcite precipitation (MICP) is an innovative technology in civil engineering. However, the high cost of components and the fragility of the treated soil limit its wide use. One of the possible solutions is organic waste incorporation at different stages of the technology. In the present study, we consider the use of spent brewer’s yeast (BSY) to produce bacterial inoculates and wastepaper, flax shives and sawdust as reinforcing additives into the soil. We showed that the replacement of expensive components of LB medium by BSY extract increased biomass growth characteristics of Bacillus subtilis K51, B. cereus 4b and Micrococcus luteus 6 strains by 1.4, 1.5 and 1.8 times, respectively, while for B. subtilis 168, they were comparable to LB medium. The urease activities of all strains were not reduced compared to the control. Among the three kinds of cellulose-containing waste, wastepaper incorporation into MICP-treated soil samples led to an increase in compressive strength by 2.1 times and precipitated calcite percentage by almost 1.5 times compared to a sample without additives. Thus, we showed the potential for soil stabilization through MICP using organic waste.

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Bio-mediated method for improving surface erosion resistance of clayey soils

Cited by 49 publications

References 65 publications

Effects of the Urease Concentration and Calcium Source on Enzyme-Induced Carbonate Precipitation for Lead Remediation

Effects of the Urease Concentration and Calcium Source on Enzyme-Induced Carbonate Precipitation for Lead Remediation

Microbial‑induced carbonate precipitation (MICP) technology: a review on the fundamentals and engineering applications

Integration of Organic Waste for Soil Stabilization through MICP

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