A review of microbial precipitation for sustainable construction

Achal, Varenyam; Mukherjee, Abhijit

doi:10.1016/j.conbuildmat.2015.04.051

Cited by 253 publications

(136 citation statements)

References 100 publications

(147 reference statements)

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“…Therefore, the use of materials for this purpose has exploded in recent years and will continue to grow in the future. Cement stands out as the most used artificial material in the world (Achal & Mukherjee, 2015b), producing annually ca. 4.6 billion tons (CEMBUREAU, 2016), and specifically in Colombia, gray cement shipments increased to 12,101 tons in 2016 (DANE, 2016).…”

Section: Biocementation or Biocement Preparationmentioning

confidence: 99%

“…Calcium carbonate precipitation induced microbiologically is an effective process and an environmentally friendly technology that can be applied to solve problems such as heavy metal contamination, soil and sand bioconsolidation, biocement, CO 2 sequestration, among others (Achal & Mukherjee, 2015a;Phillips et al, 2013a;De Muynck et al, 2010a).…”

Section: Micp Applicationsmentioning

confidence: 99%

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Soil bacteria that precipitate calcium carbonate: mechanism and applications of the process

Acuña¹,

Becerra²,

Martínez³

et al. 2018

Acta Agron.

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Bacteria with ureasic activity are microorganisms found in soil that in presence of urea and calcium, they can produce calcium carbonate, a process known as microbiologically induced calcium carbonate precipitation (MICP). This article discusses this process and its mechanism, as well as bacterial urease, calcium carbonate crystals formed, and factors that affect the efficiency of MICP, as type of bacteria, bacterial cell concentrations, pH, temperature and calcium and urea concentrations. In addition, applications as removal of heavy metals in water, bioconsolidation, biocement and CO 2 sequestration are also discussed.Keywords: Biomineralization; Bacillus; urease; carbonates; heavy metals; bioconsolidation; biocementation. ResumenLas bacterias con actividad ureásica son microorganismos que se encuentran en el suelo, y que en presencia de urea y calcio, pueden producir carbonato de calcio, proceso conocido como precipitación de calcio inducida microbiológicamente (PCIM). Este artículo trata este proceso y su mecanismo, además de las ureasas de origen bacteriano, los cristales de carbonato de calcio formado, los factores que afectan la eficiencia la PCIM, como el tipo de bacteria, las concentraciones de células bacterianas, el pH, la temperatura y las concentraciones de calcio y urea. Además, se incluye las aplicaciones como la remoción de metales pesados en aguas, la bioconsolidación, biocemento y secuestro de CO 2 .

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Section: Biocementation or Biocement Preparationmentioning

confidence: 99%

Section: Micp Applicationsmentioning

confidence: 99%

Soil bacteria that precipitate calcium carbonate: mechanism and applications of the process

Acuña¹,

Becerra²,

Martínez³

et al. 2018

Acta Agron.

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“…In fact, initiatives in several countries, such as the USA, have proposed to ban most synthetic grouting materials (DeJong et al 2010) both because of their toxicity and due to a desire to reduce cement use as this is a major contributor to global anthropogenic carbon dioxide emissions. As there are more than 40 000 projects per year performed worldwide employing chemically stabilized soils at a total cost exceeding US$6 billion, there is an immense need for alternative environmentally friendly and sustainable technologies that can fulfil the increasing demand for ground improvement (DeJong et al 2010;Ng et al 2012;Achal and Mukherjee 2015).…”

Section: Introductionmentioning

confidence: 99%

Urease active bioslurry: a novel soil improvement approach based on microbially induced carbonate precipitation

2016

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This paper presents a novel approach for soil stabilization by microbially induced carbonate precipitation (MICP) using a new urease active catalyzer, named herein as "bioslurry". The bioslurry, which was produced from the reaction between bacterial culture and 400 mmol/L of CaCl 2 and urea, is pre-formed urease active crystals consisting of CaCO 3 plus imbedded urease active bacterial cells. By mixing the bioslurry with sand, more than 95% of the bioslurry was retained in the soil matrix as a result of the mechanical trapping mechanism, leading to high resistance to flushing with a low-salinity solution. The retained urease activity of bioslurry was uniformly distributed along the sand matrix, resulting in a rather uniform CaCO 3 precipitation. Through repeated treatments with a cementation solution, the unconfined compressive strength of bioslurry treated sand was significantly improved due to the effective CaCO 3 precipitation at the contact points of soil grains. Scanning electron microscopy analysis carried out on the bioslurry treated sand revealed that the induced large rhombohedral CaCO 3 crystals were localized around the bioslurry spherical fine crystals. The overall outcome of this work is that soil biocementation using the new bioslurry approach is controllable, reproducible, and homogeneous.Key words: bioslurry, microbially induced carbonate precipitation (MICP), biocementation, ground improvement, soil stabilization.Résumé : Cet article présente une approche novatrice pour la stabilisation des sols par précipitation des carbonates induite par voie microbienne (microbially induced carbonate precipitation, MICP) en utilisant un nouveau catalyseur actif uréase, appelée ici la « boue-bio ». La boue-bio qui a été produite de la réaction entre la culture bactérienne et 400 mmol/L de CaCl 2 et de l'urée, est composée de cristaux actifs uréase préformée consistant en CaCO 3 ainsi que des cellules bactériennes actives uréases incrustées. En mélangeant la boue-bio avec du sable, plus de 95 % de la boue-bio a été maintenue dans la matrice du sol en raison du mécanisme de piégeage mécanique, conduisant à une haute résistance au rinçage d'une solution à faible salinité. L'activité uréase retenue de la boue-bio a été uniformément répartie le long de la matrice de sable, ce qui entraîne une précipitation assez uniforme de CaCO 3 . Grâce à des traitements répétés avec une solution de cimentation, la résistance en compression non confinée de sable traité à la boue-bio a été significativement améliorée en raison des précipitations en CaCO 3 efficaces au niveau des points de contact des grains de sol. L'analyse par microscopie électronique à balayage du sable traité à la boue-bio a révélé que les grands cristaux induits de CaCO 3 rhomboédriques ont été localisés autour des fins cristaux sphériques de la boue-bio. Le résultat global de ce travail est que la biocimentation du sol en utilisant la nouvelle approche de boue-bio est contrôlable, reproductible et homogène. [Traduit par la Rédaction] Mots-clés : bo...

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“…A corto o mediano plazo, esta interacción provoca el deterioro de las ECR, generando además gastos anuales entre 18 a 21 mil millones de USD en rehabilitaciones o reparaciones debido a la corrosión del acero de refuerzo (Barnat-Hunek et al, 2016;Khaloo et al, 2016). Más del 50% de estas ECR presentan problemas de deterioro a causa de la alta permeabilidad o baja calidad del concreto (Fajardo, et al, 2015;Rtimi et al, 2016), que favorece al mecanismo de transporte de agentes agresivos como al dióxido de carbono (CO2), ion cloruro (Cl-) y sulfatos (SO4-2), siendo éstos, la principal causa de deterioro en las ECR (Achal et al,2015;Trapote-Barreira et al, 2014). Sin embargo, debemos recordar que las propiedades importantes, tales como la resistencia, la permeabilidad y la durabilidad, están ligadas directamente con la porosidad en el concreto (Fajardo et al, 2015;Hou et al, 2015;Hou et al, 2016;Kupwade-patil et al, 2016).…”

Section: Introductionunclassified

Tratamiento superficial con nanopartículas base silicio inducido durante el curado: Efecto en la durabilidad de materiales base cemento portland

Cruz-Moreno

Miguel

Vivián

et al. 2017

Revista de la Asociación Latinoamericana de Control de Calidad,

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El efecto de la introducción de nanopartículas base silicio (NBS) preparadas por sol-gel en la permeabilidad de materiales base cemento portland fue estudiado. La introducción de NBS en morteros fabricados con una relación a/c de 0.65 fue inducida durante el curado por 72h, utilizando suspensión de [NBS]=0.1% vs. el volumen del agua. Posteriormente, las muestras siguieron un periodo de inmersión en agua potable con el fin de promover la reacción de la NBS con la matriz cementante y la resistividad fue medida frecuentemente. Después, fueron expuestos en ambientes con Cl- o CO2. Los resultados indicaron una disminución en la penetración de estos agresivos y un incremento de la resistividad en los especímenes tratados; por ende un incremento de la vida útil.

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A review of microbial precipitation for sustainable construction

Cited by 253 publications

References 100 publications

Soil bacteria that precipitate calcium carbonate: mechanism and applications of the process

Soil bacteria that precipitate calcium carbonate: mechanism and applications of the process

Urease active bioslurry: a novel soil improvement approach based on microbially induced carbonate precipitation

Tratamiento superficial con nanopartículas base silicio inducido durante el curado: Efecto en la durabilidad de materiales base cemento portland

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