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Natalio F, Maria R. Microbial Biomineralization of Alkaline Earth Metal Carbonates on 3D-Printed Surfaces. ACS APPLIED MATERIALS & INTERFACES 2024; 16:6327-6336. [PMID: 38205804 PMCID: PMC10859896 DOI: 10.1021/acsami.3c13665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/29/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024]
Abstract
The biomineralizing bacterium Sporosarcina pasteurii has attracted considerable interest in the area of geotechnical engineering due to its ability to induce extracellular mineralization. The presented study investigated S. pasteurii's potential to induce the mineralization of alkali-earth metal carbonate coatings on different polymeric 3D-printed flat surfaces fabricated by different additive manufacturing methods. The use of calcium, barium, strontium, or magnesium ions as the source resulted in the formation of vaterite (CaCO3), witherite (BaCO3), strontianite (SrCO3), and nesquehonite MgCO3·3H2O, respectively. These mineral coatings generally exhibit a compact, yet variable, thickness and are composed of agglomerated microparticles similar to those formed in solution. However, the mechanism behind this clustering remains unclear. The thermal properties of these biologically induced mineral coatings differ from their inorganic counterpart, highlighting the unique characteristics imparted by the biomineralization process. This work seeks to capitalize on the bacterium S. pasteurii's ability to form an alkali-earth metal carbonate coating to expand beyond its traditional use in geoengineering applications. It lays the ground for a novel integration of biologically induced mineralization of single or multilayered and multifunctional coating materials, for example, aerospace applications.
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Affiliation(s)
- Filipe Natalio
- Department
of Plant and Environmental Sciences, Weizmann
Institute of Science, Rehovot 76100, Israel
| | - Raquel Maria
- Ilse
Katz Institute for Nanoscale Science & Technology, Ben-Gurion University of the Negev, Beer Sheva 8410501, Israel
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Haystead J, Gilmour K, Sherry A, Dade-Robertson M, Zhang M. Effect of (in)organic additives on microbially induced calcium carbonate precipitation. J Appl Microbiol 2024; 135:lxad309. [PMID: 38111211 DOI: 10.1093/jambio/lxad309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/28/2023] [Accepted: 12/15/2023] [Indexed: 12/20/2023]
Abstract
AIM This study aimed to understand the morphological effects of (in)organic additives on microbially induced calcium carbonate precipitation (MICP). METHODS AND RESULTS MICP was monitored in real time in the presence of (in)organic additives: bovine serum albumin (BSA), biofilm surface layer protein A (BslA), magnesium chloride (MgCl2), and poly-l-lysine. This monitoring was carried out using confocal microscopy to observe the formation of CaCO3 from the point of nucleation, in comparison to conditions without additives. Complementary methodologies, namely scanning electron microscopy, energy-dispersive X-ray spectroscopy and X-ray diffraction, were employed to assess the visual morphology, elemental composition, and crystalline structures of CaCO3, respectively, following the crystals' formation. The results demonstrated that in the presence of additives, more CaCO3 crystals were produced at 100 min compared to the reaction without additives. The inclusion of BslA resulted in larger crystals than reactions containing other additives, including MgCl2. BSA induced a significant number of crystals from the early stages of the reaction (20 min) but did not have a substantial impact on crystal size compared to conditions without additives. All additives led to a higher content of calcite compared to vaterite after a 24-h reaction, with the exception of MgCl2, which produced a substantial quantity of magnesium calcite. CONCLUSIONS The work demonstrates the effect of several (in)organic additives on MICP and sets the stage for further research to understand additive effects on MICP to achieve controlled CaCO3 precipitation.
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Affiliation(s)
- Jamie Haystead
- Hub for Biotechnology in the Built Environment, Department of Applied Sciences, Northumbria University, Ellison Place, Newcastle upon Tyne NE1 8ST, United Kingdom
| | - Katie Gilmour
- Hub for Biotechnology in the Built Environment, Department of Applied Sciences, Northumbria University, Ellison Place, Newcastle upon Tyne NE1 8ST, United Kingdom
| | - Angela Sherry
- Hub for Biotechnology in the Built Environment, Department of Applied Sciences, Northumbria University, Ellison Place, Newcastle upon Tyne NE1 8ST, United Kingdom
| | - Martyn Dade-Robertson
- Hub for Biotechnology in the Built Environment, School of Architecture, Planning and Landscape, The Quadrangle, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
- Hub for Biotechnology in the Built Environment, Department of Architecture and Built Environment, Northumbria University, NE1 8ST, United Kingdom
| | - Meng Zhang
- Hub for Biotechnology in the Built Environment, Department of Applied Sciences, Northumbria University, Ellison Place, Newcastle upon Tyne NE1 8ST, United Kingdom
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Dhami NK, Greenwood PF, Poropat SF, Tripp M, Elson A, Vijay H, Brosnan L, Holman AI, Campbell M, Hopper P, Smith L, Jian A, Grice K. Microbially mediated fossil concretions and their characterization by the latest methodologies: a review. Front Microbiol 2023; 14:1225411. [PMID: 37840715 PMCID: PMC10576451 DOI: 10.3389/fmicb.2023.1225411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 08/14/2023] [Indexed: 10/17/2023] Open
Abstract
The study of well-preserved organic matter (OM) within mineral concretions has provided key insights into depositional and environmental conditions in deep time. Concretions of varied compositions, including carbonate, phosphate, and iron-based minerals, have been found to host exceptionally preserved fossils. Organic geochemical characterization of concretion-encapsulated OM promises valuable new information of fossil preservation, paleoenvironments, and even direct taxonomic information to further illuminate the evolutionary dynamics of our planet and its biota. Full exploitation of this largely untapped geochemical archive, however, requires a sophisticated understanding of the prevalence, formation controls and OM sequestration properties of mineral concretions. Past research has led to the proposal of different models of concretion formation and OM preservation. Nevertheless, the formation mechanisms and controls on OM preservation in concretions remain poorly understood. Here we provide a detailed review of the main types of concretions and formation pathways with a focus on the role of microbes and their metabolic activities. In addition, we provide a comprehensive account of organic geochemical, and complimentary inorganic geochemical, morphological, microbial and paleontological, analytical methods, including recent advancements, relevant to the characterization of concretions and sequestered OM. The application and outcome of several early organic geochemical studies of concretion-impregnated OM are included to demonstrate how this underexploited geo-biological record can provide new insights into the Earth's evolutionary record. This paper also attempts to shed light on the current status of this research and major challenges that lie ahead in the further application of geo-paleo-microbial and organic geochemical research of concretions and their host fossils. Recent efforts to bridge the knowledge and communication gaps in this multidisciplinary research area are also discussed, with particular emphasis on research with significance for interpreting the molecular record in extraordinarily preserved fossils.
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Affiliation(s)
- Navdeep K. Dhami
- Western Australian – Organic and Isotope Geochemistry Centre (WA-OIGC), School of Earth and Planetary Sciences, The Institute for Geoscience Research, Curtin University, Perth, WA, Australia
| | - Paul F. Greenwood
- Western Australian – Organic and Isotope Geochemistry Centre (WA-OIGC), School of Earth and Planetary Sciences, The Institute for Geoscience Research, Curtin University, Perth, WA, Australia
| | - Stephen F. Poropat
- Western Australian – Organic and Isotope Geochemistry Centre (WA-OIGC), School of Earth and Planetary Sciences, The Institute for Geoscience Research, Curtin University, Perth, WA, Australia
| | - Madison Tripp
- Western Australian – Organic and Isotope Geochemistry Centre (WA-OIGC), School of Earth and Planetary Sciences, The Institute for Geoscience Research, Curtin University, Perth, WA, Australia
| | - Amy Elson
- Western Australian – Organic and Isotope Geochemistry Centre (WA-OIGC), School of Earth and Planetary Sciences, The Institute for Geoscience Research, Curtin University, Perth, WA, Australia
| | - Hridya Vijay
- Western Australian – Organic and Isotope Geochemistry Centre (WA-OIGC), School of Earth and Planetary Sciences, The Institute for Geoscience Research, Curtin University, Perth, WA, Australia
| | - Luke Brosnan
- Western Australian – Organic and Isotope Geochemistry Centre (WA-OIGC), School of Earth and Planetary Sciences, The Institute for Geoscience Research, Curtin University, Perth, WA, Australia
| | - Alex I. Holman
- Western Australian – Organic and Isotope Geochemistry Centre (WA-OIGC), School of Earth and Planetary Sciences, The Institute for Geoscience Research, Curtin University, Perth, WA, Australia
| | - Matthew Campbell
- The Trace and Environmental DNA lab (trEND), School of Molecular and Life Sciences, Curtin University, Perth, WA, Australia
| | - Peter Hopper
- Western Australian – Organic and Isotope Geochemistry Centre (WA-OIGC), School of Earth and Planetary Sciences, The Institute for Geoscience Research, Curtin University, Perth, WA, Australia
| | - Lisa Smith
- Western Australian – Organic and Isotope Geochemistry Centre (WA-OIGC), School of Earth and Planetary Sciences, The Institute for Geoscience Research, Curtin University, Perth, WA, Australia
| | - Andrew Jian
- Western Australian – Organic and Isotope Geochemistry Centre (WA-OIGC), School of Earth and Planetary Sciences, The Institute for Geoscience Research, Curtin University, Perth, WA, Australia
| | - Kliti Grice
- Western Australian – Organic and Isotope Geochemistry Centre (WA-OIGC), School of Earth and Planetary Sciences, The Institute for Geoscience Research, Curtin University, Perth, WA, Australia
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Carter MS, Tuttle MJ, Mancini JA, Martineau R, Hung CS, Gupta MK. Microbially Induced Calcium Carbonate Precipitation by Sporosarcina pasteurii: a Case Study in Optimizing Biological CaCO 3 Precipitation. Appl Environ Microbiol 2023; 89:e0179422. [PMID: 37439668 PMCID: PMC10467343 DOI: 10.1128/aem.01794-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2023] Open
Abstract
Current production of traditional concrete requires enormous energy investment that accounts for approximately 5 to 8% of the world's annual CO2 production. Biocement is a building material that is already in industrial use and has the potential to rival traditional concrete as a more convenient and more environmentally friendly alternative. Biocement relies on biological structures (enzymes, cells, and/or cellular superstructures) to mineralize and bind particles in aggregate materials (e.g., sand and soil particles). Sporosarcina pasteurii is a workhorse organism for biocementation, but most research to date has focused on S. pasteurii as a building material rather than a biological system. In this review, we synthesize available materials science, microbiology, biochemistry, and cell biology evidence regarding biological CaCO3 precipitation and the role of microbes in microbially induced calcium carbonate precipitation (MICP) with a focus on S. pasteurii. Based on the available information, we provide a model that describes the molecular and cellular processes involved in converting feedstock material (urea and Ca2+) into cement. The model provides a foundational framework that we use to highlight particular targets for researchers as they proceed into optimizing the biology of MICP for biocement production.
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Affiliation(s)
- Michael S. Carter
- Materials and Manufacturing Directorate Air Force Research Lab, Wright-Patterson Air Force Base, Dayton, Ohio, USA
- Biological and Nanoscale Technologies Division, UES, Inc., Dayton, Ohio, USA
| | - Matthew J. Tuttle
- Materials and Manufacturing Directorate Air Force Research Lab, Wright-Patterson Air Force Base, Dayton, Ohio, USA
- Biological and Nanoscale Technologies Division, UES, Inc., Dayton, Ohio, USA
| | - Joshua A. Mancini
- Materials and Manufacturing Directorate Air Force Research Lab, Wright-Patterson Air Force Base, Dayton, Ohio, USA
- Biological and Nanoscale Technologies Division, UES, Inc., Dayton, Ohio, USA
| | - Rhett Martineau
- Materials and Manufacturing Directorate Air Force Research Lab, Wright-Patterson Air Force Base, Dayton, Ohio, USA
- Biological and Nanoscale Technologies Division, UES, Inc., Dayton, Ohio, USA
| | - Chia-Suei Hung
- Materials and Manufacturing Directorate Air Force Research Lab, Wright-Patterson Air Force Base, Dayton, Ohio, USA
| | - Maneesh K. Gupta
- Materials and Manufacturing Directorate Air Force Research Lab, Wright-Patterson Air Force Base, Dayton, Ohio, USA
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Shen G, Liu S, He Y, Pan M, Yu J, Cai Y. Reinforcement of Calcareous Sands by Stimulation of Native Microorganisms Induced Mineralization. MATERIALS (BASEL, SWITZERLAND) 2022; 16:251. [PMID: 36614589 PMCID: PMC9822414 DOI: 10.3390/ma16010251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/08/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
Calcareous sand is a special soil formed by the accumulation of carbonate fragments. Its compressibility is caused by a high void ratio and breakable particles. Because of its high carbonate content and weak cementation, its load-bearing capacity is limited. In this study, the optimal stimulation solution was obtained with response surface methodology. Then, the effect of reinforcing calcareous sand was analysed with unconfined compressive strength (UCS) tests, calcium carbonate content tests, microscopy and microbial community analyses. The components and concentrations of the optimal stimulation solution were as follows: sodium acetate (38.00 mM), ammonium chloride (124.24 mM), yeast extract (0.46 g/L), urea (333 mM), and nickel chloride (0.01 mM), and the pH was 8.75. After the calcareous sand was treated with the optimal stimulation scheme, the urease activity was 6.1891 mM urea/min, the calcium carbonate production was 8.40%, and the UCS was 770 kPa, which constituted increases of 71.41%, 35.40%, and 83.33%, respectively, compared with the initial scheme. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) analyses showed that calcium carbonate crystals were formed between the particles of the calcareous sand after the reaction, and the calcium carbonate crystals were mainly calcite. Urease-producing microorganisms became the dominant species in calcareous sand after treatment. This study showed that biostimulation-induced mineralization is feasible for reinforcing calcareous sand.
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Affiliation(s)
- Gangqiang Shen
- Fujian Research Center for Tunneling and Urban Underground Space Engineering, Huaqiao University, Xiamen 361021, China
| | - Shiyu Liu
- Fujian Research Center for Tunneling and Urban Underground Space Engineering, Huaqiao University, Xiamen 361021, China
| | - Yuhan He
- Fujian Research Center for Tunneling and Urban Underground Space Engineering, Huaqiao University, Xiamen 361021, China
| | - Muzhi Pan
- Fujian Water Conservancy and Hydropower Engineering Bureau Company Limited, Quanzhou 362000, China
| | - Jin Yu
- Fujian Research Center for Tunneling and Urban Underground Space Engineering, Huaqiao University, Xiamen 361021, China
| | - Yanyan Cai
- Fujian Research Center for Tunneling and Urban Underground Space Engineering, Huaqiao University, Xiamen 361021, China
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Calcareous deposit formation under cathodic polarization and marine biocalcifying bacterial activity. Bioelectrochemistry 2022; 148:108271. [DOI: 10.1016/j.bioelechem.2022.108271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 11/22/2022]
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Jimenez-Martinez J, Nguyen J, Or D. Controlling pore-scale processes to tame subsurface biomineralization. RE/VIEWS IN ENVIRONMENTAL SCIENCE AND BIO/TECHNOLOGY 2022; 21:27-52. [PMID: 35221831 PMCID: PMC8831379 DOI: 10.1007/s11157-021-09603-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 12/06/2021] [Indexed: 06/14/2023]
Abstract
Microorganisms capable of biomineralization can catalyze mineral precipitation by modifying local physical and chemical conditions. In porous media, such as soil and rock, these microorganisms live and function in highly heterogeneous physical, chemical and ecological microenvironments, with strong local gradients created by both microbial activity and the pore-scale structure of the subsurface. Here, we focus on extracellular bacterial biomineralization, which is sensitive to external heterogeneity, and review the pore-scale processes controlling microbial biomineralization in natural and engineered porous media. We discuss how individual physical, chemical and ecological factors integrate to affect the spatial and temporal control of biomineralization, and how each of these factors contributes to a quantitative understanding of biomineralization in porous media. We find that an improved understanding of microbial behavior in heterogeneous microenvironments would promote understanding of natural systems and output in diverse technological applications, including improved representation and control of fluid mixing from pore to field scales. We suggest a range of directions by which future work can build from existing tools to advance each of these areas to improve understanding and predictability of biomineralization science and technology.
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Affiliation(s)
- Joaquin Jimenez-Martinez
- Department of Water Resources and Drinking Water, Eawag, Dübendorf, Switzerland
- Department of Civil, Environmental and Geomatic Engineering, ETH Zurich, Zürich, Switzerland
| | - Jen Nguyen
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC V6T 1Z3 Canada
- School of Biomedical Engineering, University of British Columbia, Vancouver, BC V6T 1Z3 Canada
| | - Dani Or
- Division of Hydrologic Sciences, Desert Research Institute, Reno, NV USA
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8
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Vincent J, Colin B, Lanneluc I, Sabot R, Sopéna V, Turcry P, Mahieux PY, Refait P, Jeannin M, Sablé S. New Biocalcifying Marine Bacterial Strains Isolated from Calcareous Deposits and Immediate Surroundings. Microorganisms 2021; 10:76. [PMID: 35056526 PMCID: PMC8778039 DOI: 10.3390/microorganisms10010076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/24/2021] [Accepted: 12/28/2021] [Indexed: 12/04/2022] Open
Abstract
Marine bacterial biomineralisation by CaCO3 precipitation provides natural limestone structures, like beachrocks and stromatolites. Calcareous deposits can also be abiotically formed in seawater at the surface of steel grids under cathodic polarisation. In this work, we showed that this mineral-rich alkaline environment harbours bacteria belonging to different genera able to induce CaCO3 precipitation. We previously isolated 14 biocalcifying marine bacteria from electrochemically formed calcareous deposits and their immediate environment. By microscopy and µ-Raman spectroscopy, these bacterial strains were shown to produce calcite-type CaCO3. Identification by 16S rDNA sequencing provided between 98.5 and 100% identity with genera Pseudoalteromonas, Pseudidiomarina, Epibacterium, Virgibacillus, Planococcus, and Bhargavaea. All 14 strains produced carbonic anhydrase, and six were urease positive. Both proteins are major enzymes involved in the biocalcification process. However, this does not preclude that one or more other metabolisms could also be involved in the process. In the presence of urea, Virgibacillus halodenitrificans CD6 exhibited the most efficient precipitation of CaCO3. However, the urease pathway has the disadvantage of producing ammonia, a toxic molecule. We showed herein that different marine bacteria could induce CaCO3 precipitation without urea. These bacteria could then be used for eco-friendly applications, e.g., the formation of bio-cements to strengthen dikes and delay coastal erosion.
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Affiliation(s)
- Julia Vincent
- Laboratoire Littoral Environnement et Sociétés, La Rochelle Université, UMR 7266 CNRS, 17000 La Rochelle, France; (J.V.); (B.C.); (I.L.); (V.S.)
- Laboratoire des Sciences de l’Ingénieur pour l’Environnement, La Rochelle Université, UMR 7356 CNRS, 17000 La Rochelle, France; (R.S.); (P.T.); (P.-Y.M.); (P.R.)
| | - Béatrice Colin
- Laboratoire Littoral Environnement et Sociétés, La Rochelle Université, UMR 7266 CNRS, 17000 La Rochelle, France; (J.V.); (B.C.); (I.L.); (V.S.)
| | - Isabelle Lanneluc
- Laboratoire Littoral Environnement et Sociétés, La Rochelle Université, UMR 7266 CNRS, 17000 La Rochelle, France; (J.V.); (B.C.); (I.L.); (V.S.)
| | - René Sabot
- Laboratoire des Sciences de l’Ingénieur pour l’Environnement, La Rochelle Université, UMR 7356 CNRS, 17000 La Rochelle, France; (R.S.); (P.T.); (P.-Y.M.); (P.R.)
| | - Valérie Sopéna
- Laboratoire Littoral Environnement et Sociétés, La Rochelle Université, UMR 7266 CNRS, 17000 La Rochelle, France; (J.V.); (B.C.); (I.L.); (V.S.)
| | - Philippe Turcry
- Laboratoire des Sciences de l’Ingénieur pour l’Environnement, La Rochelle Université, UMR 7356 CNRS, 17000 La Rochelle, France; (R.S.); (P.T.); (P.-Y.M.); (P.R.)
| | - Pierre-Yves Mahieux
- Laboratoire des Sciences de l’Ingénieur pour l’Environnement, La Rochelle Université, UMR 7356 CNRS, 17000 La Rochelle, France; (R.S.); (P.T.); (P.-Y.M.); (P.R.)
| | - Philippe Refait
- Laboratoire des Sciences de l’Ingénieur pour l’Environnement, La Rochelle Université, UMR 7356 CNRS, 17000 La Rochelle, France; (R.S.); (P.T.); (P.-Y.M.); (P.R.)
| | - Marc Jeannin
- Laboratoire des Sciences de l’Ingénieur pour l’Environnement, La Rochelle Université, UMR 7356 CNRS, 17000 La Rochelle, France; (R.S.); (P.T.); (P.-Y.M.); (P.R.)
| | - Sophie Sablé
- Laboratoire Littoral Environnement et Sociétés, La Rochelle Université, UMR 7266 CNRS, 17000 La Rochelle, France; (J.V.); (B.C.); (I.L.); (V.S.)
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Dubey AA, Ravi K, Shahin MA, Dhami NK, Mukherjee A. Bio-composites treatment for mitigation of current-induced riverbank soil erosion. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 800:149513. [PMID: 34392222 DOI: 10.1016/j.scitotenv.2021.149513] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 08/02/2021] [Accepted: 08/03/2021] [Indexed: 06/13/2023]
Abstract
Mitigation of erosion along the riverbanks is a global challenge. Stabilisers such as cement can control erosion, but it risks the river ecology. This paper presents the erosion characteristics of riverbank soil treated with two biological stabilisers that alleviate the ecological cost. The riverbank soil of one of the largest river systems, Brahmaputra, is treated by bio-polymeric and bio-cement binders and their composite. Moreover, a novel selective bio-stimulation technique has been employed to achieve bio-mineralisation. The soil stabilisation is assessed by needle penetration tests and CaCO3 contents. The specimens were tested in a flow-controlled hydraulic flume subjected to a critical current profile ranging from 0.06 to 0.62 m/s. Soil samples treated up to four cycles of biocementation have been tested at three different slopes (30°, 45° and 53°). The eroded depth and erosion rate are evaluated with image analysis. Up to four-fold reduction in the erosion rate was observed with biocementation treatment. However, cementation beyond a threshold led to the formation of brittle chunks. A bio-composite was devised through a pre-treatment of low-viscosity biopolymer along with biocementation. The bio-composite was found to effectively mitigate the current-induced erosion with 36% lower ammonia production than the equally erosion resistant biocemented counterpart. The dual characteristics of the bio-composite were confirmed with the microstructural analysis. This study unravels the potential of biopolymer-biocement composite as a sustainable erosion mitigation strategy.
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Affiliation(s)
- Anant Aishwarya Dubey
- Department of Civil Engineering, Indian Institute of Technology, Guwahati, Assam 781039, India; School of Civil and Mechanical Engineering, Curtin University, Perth, Western Australia 6152, Australia
| | - K Ravi
- Department of Civil Engineering, Indian Institute of Technology, Guwahati, Assam 781039, India
| | - Mohamed A Shahin
- School of Civil and Mechanical Engineering, Curtin University, Perth, Western Australia 6152, Australia
| | - Navdeep K Dhami
- School of Civil and Mechanical Engineering, Curtin University, Perth, Western Australia 6152, Australia
| | - Abhijit Mukherjee
- School of Civil and Mechanical Engineering, Curtin University, Perth, Western Australia 6152, Australia.
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10
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Influence of native ureolytic microbial community on biocementation potential of Sporosarcina pasteurii. Sci Rep 2021; 11:20856. [PMID: 34675302 PMCID: PMC8531298 DOI: 10.1038/s41598-021-00315-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/14/2021] [Indexed: 12/02/2022] Open
Abstract
Microbially induced calcium carbonate precipitation (MICP)/Biocementation has emerged as a promising technique for soil engineering applications. There are chiefly two methods by which MICP is applied for field applications including biostimulation and bioaugmentation. Although bioaugmentation strategy using efficient ureolytic biocementing culture of Sporosarcina pasteurii is widely practiced, the impact of native ureolytic microbial communities (NUMC) on CaCO3 mineralisation via S. pasteurii has not been explored. In this paper, we investigated the effect of different concentrations of NUMC on MICP kinetics and biomineral properties in the presence and absence of S. pasteurii. Kinetic analysis showed that the biocementation potential of S. pasteurii is sixfold higher than NUMC and is not significantly impacted even when the concentration of the NUMC is eight times higher. Micrographic results revealed a quick rate of CaCO3 precipitation by S. pasteurii leading to generation of smaller CaCO3 crystals (5-40 µm), while slow rate of CaCO3 precipitation by NUMC led to creation of larger CaCO3 crystals (35-100 µm). Mineralogical results showed the predominance of calcite phase in both sets. The outcome of current study is crucial for tailor-made applications of MICP.
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11
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Spairani Y, Cisternino A, Foti D, Lerna M, Ivorra S. Study of the Behavior of Structural Materials Treated with Bioconsolidant. MATERIALS 2021; 14:ma14185369. [PMID: 34576599 PMCID: PMC8465772 DOI: 10.3390/ma14185369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 09/09/2021] [Accepted: 09/13/2021] [Indexed: 11/16/2022]
Abstract
In this article, the effectiveness of the bioconsolidation technique applied to degraded structural materials is illustrated as a new method of consolidation and conservation of the existing building heritage in a less invasive way. Satisfactory results have been obtained by an experimental campaign carried out through non-destructive diagnostic tests, static destructive mechanical tests, and microstructural analyses on a series of natural stone material specimens and artificial stone materials before and after the use of bioconsolidants. The consolidated specimens have been tested after three to four weeks after the application of the M3P nutritional solution on each specimen. The effect on the microstructure of this technique has also been observed using scanning electron microscope and optical photomicrograph, the formation of new calcium carbonate crystals promoting the structural consolidation of the materials under examination was observed in all the specimens analyzed.
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Affiliation(s)
- Yolanda Spairani
- Department of Architectural Constructions, University of Alicante, San Vicente Del Raspeig, 03080 Alicante, Spain;
| | - Arianna Cisternino
- Department of Civil Engineering Sciences and Architecture, Polytechnic University of Bari, Via Orabona 4, 70125 Bari, Italy; (A.C.); (M.L.)
| | - Dora Foti
- Department of Civil Engineering Sciences and Architecture, Polytechnic University of Bari, Via Orabona 4, 70125 Bari, Italy; (A.C.); (M.L.)
- Correspondence:
| | - Michela Lerna
- Department of Civil Engineering Sciences and Architecture, Polytechnic University of Bari, Via Orabona 4, 70125 Bari, Italy; (A.C.); (M.L.)
| | - Salvador Ivorra
- Department of Civil Engineering, University of Alicante, San Vicente Del Raspeig, 03080 Alicante, Spain;
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Graddy CMR, Gomez MG, DeJong JT, Nelson DC. Native Bacterial Community Convergence in Augmented and Stimulated Ureolytic MICP Biocementation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:10784-10793. [PMID: 34279077 DOI: 10.1021/acs.est.1c01520] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Microbially induced calcite precipitation is a biomineralization process with numerous civil engineering and ground improvement applications. In replicate soil columns, the efficacy and microbial composition of soil bioaugmented with the ureolytic bacterium Sporosarcina pasteurii were compared to a biostimulation method that enriches native ureolytic soil bacteria in situ under conditions analogous to field implementation. The selective enrichment resulting from sequential stimulation treatments strongly selected for Firmicutes (>97%), with Sporosarcina and Lysinibacillus comprising 60 to 94% of high-throughput 16S rDNA sequences in each suspended community sample. Seven species of the former and two of the latter were present in greater than 10% abundance at different times, demonstrating unexpected within-genus diversity and robustness in the suspended phase of this highly selective environment. Based on longer 16S sequences, it was inferred that augmented S. pasteurii competed poorly with natural bacteria, decreasing to below detection after nine treatments, while the native microbial community was enriched to approximately that present in the stimulated columns. These analyses were corroborated by the observed convergence in bulk ureolytic rates and calcite contents between techniques. However, a 10-fold discrepancy between the observed cell density and an activity-based estimate indicates the attached community, uncharacterized despite efforts, substantially contributes to bulk behavior.
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Affiliation(s)
- Charles M R Graddy
- Department of Microbiology and Molecular Genetics, University of California, Davis 95616, California, United States
| | - Michael G Gomez
- Department of Civil and Environmental Engineering, University of Washington, Seattle 98195-2700, Washington, United States
| | - Jason T DeJong
- Department of Civil and Environmental Engineering, University of California, Davis 95616, California, United States
| | - Douglas C Nelson
- Department of Microbiology and Molecular Genetics, University of California, Davis 95616, California, United States
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Dubey AA, Ravi K, Mukherjee A, Sahoo L, Abiala MA, Dhami NK. Biocementation mediated by native microbes from Brahmaputra riverbank for mitigation of soil erodibility. Sci Rep 2021; 11:15250. [PMID: 34315956 PMCID: PMC8316328 DOI: 10.1038/s41598-021-94614-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 06/30/2021] [Indexed: 02/07/2023] Open
Abstract
Riverbank erosion is a global problem with significant socio-economic impacts. Microbially induced calcite precipitation (MICP) has recently emerged as a promising technology for improving the mechanical properties of soils. The present study investigates the potential of selectively enriched native calcifying bacterial community and its supplementation into the riverbank soil of the Brahmaputra river for reducing the erodibility of the soil. The ureolytic and calcium carbonate cementation abilities of the enriched cultures were investigated with reference to the standard calcifying culture of Sporosarcina pasteurii (ATCC 11859). 16S rRNA analysis revealed Firmicutes to be the most predominant calcifying class with Sporosarcina pasteurii and Pseudogracilibacillus auburnensis as the prevalent strains. The morphological and mineralogical characterization of carbonate crystals confirmed the calcite precipitation potential of these communities. The erodibility of soil treated with native calcifying communities was examined via needle penetration and lab-scale hydraulic flume test. We found a substantial reduction in soil erosion in the biocemented sample with a calcite content of 7.3% and needle penetration index of 16 N/mm. We report the cementation potential of biostimulated ureolytic cultures for minimum intervention to riparian biodiversity for an environmentally conscious alternative to current erosion mitigation practices.
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Affiliation(s)
- Anant Aishwarya Dubey
- grid.417972.e0000 0001 1887 8311Indian Institute of Technology, Guwahati, 781039 India ,grid.1032.00000 0004 0375 4078Curtin University, Perth, WA 6152 Australia
| | - K. Ravi
- grid.417972.e0000 0001 1887 8311Indian Institute of Technology, Guwahati, 781039 India
| | - Abhijit Mukherjee
- grid.1032.00000 0004 0375 4078Curtin University, Perth, WA 6152 Australia
| | - Lingaraj Sahoo
- grid.417972.e0000 0001 1887 8311Indian Institute of Technology, Guwahati, 781039 India
| | | | - Navdeep K. Dhami
- grid.1032.00000 0004 0375 4078Curtin University, Perth, WA 6152 Australia
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14
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Shaheen N, Jalil A, Adnan F, Arsalan Khushnood R. Isolation of alkaliphilic calcifying bacteria and their feasibility for enhanced CaCO 3 precipitation in bio-based cementitious composites. Microb Biotechnol 2021; 14:1044-1059. [PMID: 33629805 PMCID: PMC8085925 DOI: 10.1111/1751-7915.13752] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 01/02/2021] [Indexed: 11/26/2022] Open
Abstract
Microbially induced calcite precipitation (MICP), secreted through biological metabolic activity, secured an imperative position in remedial measures within the construction industry subsequent to ecological, environmental and economical returns. However, this contemporary recurrent healing system is susceptible to microbial depletion in the highly alkaline cementitious environment. Therefore, researchers are probing for alkali resistant calcifying microbes. In the present study, alkaliphilic microbes were isolated from different soil sources and screened for probable CaCO3 precipitation. Non-ureolytic pathway (oxidation of organic carbon) was adopted for calcite precipitation to eliminate the production of toxic ammonia. For this purpose, calcium lactate Ca(C3 H5 O3 )2 and calcium acetate Ca(CH3 COO)2 were used as CaCO3 precipitation precursors. The quantification protocol for precipitated CaCO3 was established to select potent microbial species for implementation in the alkaline cementitious systems as more than 50% of isolates were able to precipitate CaCO3 . Results suggested 80% of potent calcifying strains isolated in this study, portrayed higher calcite precipitation at pH 10 when compared to pH 7. Ten superlative morphologically distinct isolates capable of CaCO3 production were identified by 16SrRNA sequencing. Sequenced microbes were identified as species of Bacillus, Arthrobacter, Planococcus, Chryseomicrobium and Corynebacterium. Further, microstructure of precipitated CaCO3 was inspected through scanning electron microscopy (SEM), X-ray diffraction (XRD) and thermal gravimetric (TG) analysis. Then, the selected microbes were investigated in the cementitious mortar to rule out any detrimental effects on mechanical properties. These strains showed maximum of 36% increase in compressive strength and 96% increase in flexural strength. Bacillus, Arthrobacter, Corynebacterium and Planococcus genera have been reported as CaCO3 producers but isolated strains have not yet been investigated in conjunction with cementitious mortar. Moreover, species of Chryseomicrobium and Glutamicibacter were reported first time as calcifying strains.
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Affiliation(s)
- Nafeesa Shaheen
- NUST Institute of Civil Engineering (NICE)School of Civil and Environmental Engineering (SCEE)National University of Sciences and Technology (NUST)Sector H‐12Islamabad44000Pakistan
| | - Amna Jalil
- Atta‐ur‐Rahman School of Applied Biosciences (ASAB)National University of Sciences and Technology (NUST)Sector H‐12Islamabad44000Pakistan
| | - Fazal Adnan
- Atta‐ur‐Rahman School of Applied Biosciences (ASAB)National University of Sciences and Technology (NUST)Sector H‐12Islamabad44000Pakistan
| | - Rao Arsalan Khushnood
- NUST Institute of Civil Engineering (NICE)School of Civil and Environmental Engineering (SCEE)National University of Sciences and Technology (NUST)Sector H‐12Islamabad44000Pakistan
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15
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Spencer CA, van Paassen L, Sass H. Effect of Jute Fibres on the Process of MICP and Properties of Biocemented Sand. MATERIALS 2020; 13:ma13235429. [PMID: 33260644 PMCID: PMC7729919 DOI: 10.3390/ma13235429] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 11/23/2020] [Accepted: 11/24/2020] [Indexed: 12/19/2022]
Abstract
There has been increasing interest, in the past decade, in bio-mediated approaches to soil improvement for geotechnical applications. Microbially induced calcium carbonate precipitation (MICP) has been investigated as a potentially sustainable method for the strengthening and stabilisation of soil structures. This paper presents the results of a study on the effect of jute fibres on both the MICP process and properties of biocemented sand. Ureolytic Sporosarcina pasteurii has been used to produce biocemented soil columns via MICP in the laboratory. Results showed that columns containing 0.75% (by weight of sand) untreated jute fibres had unconfined compressive strengths approximately six times greater on average compared to biocemented sand columns without jute fibres. Furthermore, efficiency of chemical conversion was found to be higher in columns containing jute fibres, as measured using ion chromatography. Columns containing jute had calcimeter measured CaCO3 contents at least three times those containing sand only. The results showed that incorporation of jute fibres into the biocemented sand material had a beneficial effect, resulting in stimulation of bacterial activity, thus sustaining the MICP process during the twelve-day treatment process. This study also explores the potential of jute fibres in self-healing MICP systems.
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Affiliation(s)
- Christine Ann Spencer
- School of Engineering, Cardiff University, Cardiff CF24 3AA, UK
- Correspondence: ; Tel.: +44-749-460-1376
| | - Leon van Paassen
- Center for Bio-Mediated and Bio-Inspired Geotechnics (CBBG), Arizona State University, Tempe, AZ 85287-3005, USA;
| | - Henrik Sass
- School of Earth and Ocean Sciences, Cardiff University, Cardiff CF10 3AT, UK;
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16
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Jroundi F, Elert K, Ruiz-Agudo E, Gonzalez-Muñoz MT, Rodriguez-Navarro C. Bacterial Diversity Evolution in Maya Plaster and Stone Following a Bio-Conservation Treatment. Front Microbiol 2020; 11:599144. [PMID: 33240254 PMCID: PMC7680763 DOI: 10.3389/fmicb.2020.599144] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 10/19/2020] [Indexed: 11/13/2022] Open
Abstract
To overcome the limitations of traditional conservation treatments used for protection and consolidation of stone and lime mortars and plasters, mostly based on polymers or alkoxysilanes, a novel treatment based on the activation of indigenous carbonatogenic bacteria has been recently proposed and applied both in the laboratory and in situ. Despite very positive results, little is known regarding its effect on the evolution of the indigenous bacterial communities, specially under hot and humid tropical conditions where proliferation of microorganisms is favored, as it is the case of the Maya area. Here, we studied changes in bacterial diversity of severely degraded tuff stone and lime plaster at the archeological Maya site of Copan (Honduras) after treatment with the patented sterile M-3P nutritional solution. High-throughput sequencing by Illumina MiSeq technology shows significant changes in the bacterial population of the treated stones, enhancing the development of Arthrobacter, Micrococcaceae, Nocardioides, Fictibacillus, and Streptomyces, and, in one case, Rubrobacter (carved stone blocks at Structure 18). In the lime plaster, Arthrobacter, Fictibacillus, Bacillus, Agrococcus, and Microbacterium dominated after treatment. Most of these detected genera have been shown to promote calcium carbonate biomineralization, thus implying that the novel bio-conservation treatment would be effective. Remarkably, the treatment induced the reduction or complete disappearance of deleterious acid-producing bacteria such as Marmoricola or the phylum Acidobacteria. The outcome of this study demonstrates that such a bio-conservation treatment can safely and effectively be applied on temples, sculptures and stuccos of the Maya area and, likely, in other hot and humid environments.
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Affiliation(s)
- Fadwa Jroundi
- Department of Microbiology, University of Granada, Granada, Spain
| | - Kerstin Elert
- Department of Mineralogy and Petrology, University of Granada, Granada, Spain
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17
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Ohan JA, Saneiyan S, Lee J, Bartlow AW, Ntarlagiannis D, Burns SE, Colwell FS. Microbial and Geochemical Dynamics of an Aquifer Stimulated for Microbial Induced Calcite Precipitation (MICP). Front Microbiol 2020; 11:1327. [PMID: 32612598 PMCID: PMC7309221 DOI: 10.3389/fmicb.2020.01327] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 05/25/2020] [Indexed: 11/28/2022] Open
Abstract
Microbially induced calcite precipitation (MICP) is an alternative to existing soil stabilization techniques for construction and erosion. As with any biologically induced process in soils or aquifers, it is important to track changes in the microbial communities that occur as a result of the treatment. Our research assessed how native microbial communities developed in response to injections of reactants (dilute molasses as a carbon source; urea as a source of nitrogen and alkalinity) that promoted MICP in a shallow aquifer. Microbial community composition (16S rRNA gene) and ureolytic potential (ureC gene copy numbers) were also measured in groundwater and artificial sediment. Aquifer geochemistry showed evidence of sulfate reduction, nitrification, denitrification, ureolysis, and iron reduction during the treatment. The observed changes in geochemistry corresponded to microbial community succession in the groundwater and this matched parallel geophysical and mineralogical evidence of calcite precipitation in the aquifer. We detected an increase in the number of ureC genes in the microbial communities at the end of the injection period, suggesting an increase in the abundance of microbes possessing this gene as needed to hydrolyze urea and stimulate MICP. We identify geochemical and biological markers that highlight the microbial community response that can be used along with geophysical and geotechnical evidence to assess progress of MICP.
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Affiliation(s)
- J A Ohan
- Department of Microbiology, Oregon State University, Corvallis, OR, United States.,Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, United States
| | - S Saneiyan
- Department of Earth & Environmental Sciences, Rutgers University, Newark, NJ, United States
| | - J Lee
- College of Engineering, Georgia Institute of Technology, Atlanta, GA, United States
| | - Andrew W Bartlow
- Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM, United States
| | - D Ntarlagiannis
- Department of Earth & Environmental Sciences, Rutgers University, Newark, NJ, United States
| | - S E Burns
- College of Engineering, Georgia Institute of Technology, Atlanta, GA, United States
| | - Frederick S Colwell
- College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR, United States
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18
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Understanding and creating biocementing beachrocks via biostimulation of indigenous microbial communities. Appl Microbiol Biotechnol 2020; 104:3655-3673. [PMID: 32095860 DOI: 10.1007/s00253-020-10474-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 01/30/2020] [Accepted: 02/14/2020] [Indexed: 10/24/2022]
Abstract
Bacterially induced precipitation of minerals leading to cementation of natural geological formations has been well recorded in a variety of environments. A range of microbial pathways and geochemical processes have been found to influence the cementation processes; but detailed formation mechanisms and biogeochemical relationships are still not very clear. There has been a growing demand for the application of bacterially driven biocementation in a number of geotechnical engineering applications recently. Here, we aimed to unpin the mechanisms behind the formation of actively mineralising beachrock sediments at Lucky Bay in Western Australia to understand the natural accretionary processes and potential of indigenous bacterial communities in biocementation. We observed ferruginous, aluminosilicate and carbonate cements along with extensive extra polymeric substances, borings with possible microbial activities in certain sections of native beachrock sediments. Cement precipitation under calcium- and iron-rich microenvironments sourced from seawater and iron creek seems to be driven by both biogenic and abiogenic processes in nature. Native microbial communities with a dominance of the genera Halococcus and Marinobacter were recorded. Enrichment of native bacterial communities under seawater media conditions was conducted which lead to successful biomineralisation of calcitic and ferruginous cements under in vitro conditions although the community composition changed significantly. Nanomechanical properties of natural and laboratory synthesised cement crystals showed that engineered biocement is highly promising. The results of this study clearly demonstrate biological influence in the formation of natural cements and hint significant potential of biostimulation which can be harnessed for different engineering applications including coastal erosion.
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19
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Microbial Induced Carbonate Precipitation Using a Native Inland Bacterium for Beach Sand Stabilization in Nearshore Areas. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9153201] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Microbial Induced Carbonate Precipitation (MICP) via urea hydrolysis is an emerging sustainable technology that provides solutions for numerous environmental and engineering problems in a vast range of disciplines. Attention has now been given to the implementation of this technique to reinforce loose sand bodies in-situ in nearshore areas and improve their resistance against erosion from wave action without interfering with its hydraulics. A current study has focused on isolating a local ureolytic bacterium and assessed its feasibility for MICP as a preliminary step towards stabilizing loose beach sand in Sri Lanka. The results indicated that a strain belonging to Sporosarcina sp. isolated from inland soil demonstrated a satisfactory level of enzymatic activity at 25 °C and moderately alkaline conditions, making it a suitable candidate for target application. Elementary scale sand solidification test results showed that treated sand achieved an approximate strength of 15 MPa as determined by needle penetration device after a period of 14 days under optimum conditions. Further, Scanning Electron Microscopy (SEM) imagery revealed that variables such as grain size distribution, bacteria population, reactant concentrations and presence of other cations like Mg2+ has serious implications on the size and morphology of precipitated crystals and thus the homogeneity of the strength improvement.
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20
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Irfan MF, Hossain SMZ, Khalid H, Sadaf F, Al-Thawadi S, Alshater A, Hossain MM, Razzak SA. Optimization of bio-cement production from cement kiln dust using microalgae. ACTA ACUST UNITED AC 2019; 23:e00356. [PMID: 31312609 PMCID: PMC6609786 DOI: 10.1016/j.btre.2019.e00356] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 05/06/2019] [Accepted: 06/23/2019] [Indexed: 11/23/2022]
Abstract
CKD with microalgae sp. Chlorella kessleri is investigated for maximum bio-cement yields. A predictive quadratic model was developed for CaCO3 yield with R2 value of c.a. 92%. Low temperature and high pH were found to be important parameters in RSM study. Under optimal set, a maximum of 96% Ca was extracted experimentally from CKD. FTIR, XRD and EDS analysis confirmed the produced bio-cement compound.
The main aim of this study was to maximize bio-cement (CaCO3) production through a waste feedstock of cement kiln dust (CKD) as a source of calcium by deployment of microalgae sp. Chlorella kessleri. The effect of process parameters such as temperature, pH and time-intervals of microalgae cultivation, were set as criteria that ultimately subscribe to a process of optimization. In this regard, a single factor experiments integrated with response surface methodology (RSM) via central composite design (CCD) was considered. A quadratic model was developed to predict the maximum CaCO3 yield. A ceiling of 25.18 g CaCO3 yield was obtained at an optimal set of 23 °C, pH of 10.63 and day-9 of microalgae culture. Under these optimized conditions, maximum 96% calcium was extracted from CKD. FTIR, XRD and EDS analyses were conducted to characterize the CaCO3 precipitates. Compressive modes of mechanical testing seemed to hold conventional cement complimented by CaCO3 co-presence markedly superior to mere cement performance as far as compressive strength is concerned. The latter criterion exhibited further increase in correspondence with rise in cement to bio-cement ratio. This investigative endeavour at hand offers a simple pivotal platform on the basis of which a scale-up of microalgae-infested bio-cement production might be facilitated in conjunction with the added benefit of alleviation in environmental pollution through cement waste utilization.
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Affiliation(s)
- M F Irfan
- Department of Chemical Engineering, College of Engineering, University of Bahrain, Bahrain
| | - S M Z Hossain
- Department of Chemical Engineering, College of Engineering, University of Bahrain, Bahrain
| | - H Khalid
- Department of Chemical Engineering, College of Engineering, University of Bahrain, Bahrain
| | - F Sadaf
- Department of Chemical Engineering, College of Engineering, University of Bahrain, Bahrain
| | - S Al-Thawadi
- Department of Biology, College of Sciences, University of Bahrain, Bahrain
| | - A Alshater
- Department of Chemical Engineering, College of Engineering, University of Bahrain, Bahrain
| | - M M Hossain
- Department of Chemical Engineering, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
| | - S A Razzak
- Department of Chemical Engineering, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia
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21
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Jiang NJ, Liu R, Du YJ, Bi YZ. Microbial induced carbonate precipitation for immobilizing Pb contaminants: Toxic effects on bacterial activity and immobilization efficiency. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 672:722-731. [PMID: 30974362 DOI: 10.1016/j.scitotenv.2019.03.294] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 03/14/2019] [Accepted: 03/19/2019] [Indexed: 05/22/2023]
Abstract
Microbial induced carbonate precipitation (MICP) is a natural bio-mediated process, which has been explored for soil stabilization and heavy metals immobilization in soil and groundwater. Previous studies have shown that MICP is capable of immobilizing various heavy metals including lead (Pb). However, most studies focus merely on the immobilization of heavy metals with relatively low concentration. This study: (1) presents results of an investigation into the toxic effects of Pb on bacterial activity and immobilization efficiency within a wide range of Pb concentrations; and (2) identifies controlling biotic and abiotic factors of Pb immobilization by MICP. In the first series of tests, bacterial strains (Sporosarcina pasteurii) are inoculated into nutrient solutions containing 0-50 mM Pb(NO3)2 and incubated at 30 °C. Biochemical parameters are measured over time, which include pH, electrical conductivity, urease activity, and viable cell number. In the second series of tests, grown bacterial strains are mixed with urea, calcium salts and Pb(NO3)2 in solution. Viable cell number, produced ammonium concentration, aqueous Pb concentration of the mixed solution, and total precipitation mass are measured. The results show that the presence of Pb has marginal effect on bacterial growth and associated urease activity at Pb concentration < 30 mM. The calcium source and initial bacteria concentration are found to remarkably influence Pb immobilization efficiency in terms of Pb removal percentage. Supplementary geochemical simulation results indicate that the Pb immobilization mechanisms includes abiotic precipitation, biotic precipitation and bio-sorption.
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Affiliation(s)
- Ning-Jun Jiang
- Jiangsu Key Laboratory of Urban Underground Engineering & Environmental Safety, Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China; Department of Civil and Environmental Engineering, University of Hawaii at Manoa, Honolulu, HI 96822, USA.
| | - Rui Liu
- Jiangsu Key Laboratory of Urban Underground Engineering & Environmental Safety, Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China.
| | - Yan-Jun Du
- Jiangsu Key Laboratory of Urban Underground Engineering & Environmental Safety, Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China.
| | - Yu-Zhang Bi
- Jiangsu Key Laboratory of Urban Underground Engineering & Environmental Safety, Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China.
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22
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Omoregie AI, Ngu LH, Ong DEL, Nissom PM. Low-cost cultivation of Sporosarcina pasteurii strain in food-grade yeast extract medium for microbially induced carbonate precipitation (MICP) application. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2018.11.030] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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23
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Dhami NK, Mukherjee A, Watkin ELJ. Microbial Diversity and Mineralogical-Mechanical Properties of Calcitic Cave Speleothems in Natural and in Vitro Biomineralization Conditions. Front Microbiol 2018; 9:40. [PMID: 29472898 PMCID: PMC5810276 DOI: 10.3389/fmicb.2018.00040] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Accepted: 01/09/2018] [Indexed: 11/17/2022] Open
Abstract
Natural mineral formations are a window into important processes leading to carbon storage and mineralized carbonate structures formed through abiotic and biotic processes. In the current study, we made an attempt to undertake a comprehensive approach to characterize the mineralogical, mechanical, and microbial properties of different kinds of speleothems from karstic caves; with an aim to understand the bio-geo-chemical processes in speleothem structures and their impact on nanomechanical properties. We also investigated the biomineralization abilities of speleothem surface associated microbial communities in vitro. Mineralogical profiling using techniques such as X-ray powder Diffraction (XRD) and Tescan Integrated Mineral Analyzer (TIMA) demonstrated that calcite was the dominant mineral in the majority of speleothems with Energy Dispersive X-ray Analysis (EDS) indicating a few variations in the elemental components. Differing proportions of polymorphs of calcium carbonate such as aragonite and vaterite were also recorded. Significant variations in trace metal content were recorded through Inductively Coupled Plasma Mass Spectrometer (ICP-MS). Scanning Electron Microscopy (SEM) analysis revealed differences in morphological features of the crystals which varied from triangular prismatic shapes to etched spiky forms. Microbial imprints and associations were seen in a few sections. Analysis of the associated microbial diversity showed significant differences between various speleothems at Phylum level; although Proteobacteria and Actinobacteria were found to be the predominant groups. Genus level microbial associations showed a relationship with the geochemistry, mineralogical composition, and metal content of the speleothems. The assessment of nanomechanical properties measured by Nanoindentation revealed that the speleothems with a dominance of calcite were stronger than the speleothems with mixed calcium carbonate polymorphs and silica content. The in vitro metabolic activity of the microbial communities associated with the surfaces of the speleothems resulted in calcium carbonate crystal precipitation. Firmicutes and Proteobacteria dominated these populations, in contrast to the populations seen in natural systems. The precipitation of calcium carbonate crystals in vitro indicated that microbial metabolic activity may also play an important role in the synthesis and dissociation of biominerals in the natural environment. Our study provides novel evidence of the close relationship between mineralogy, microbial ecology, geochemistry, and nanomechanical properties of natural formations.
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Affiliation(s)
- Navdeep K. Dhami
- Biologically Activated Materials Laboratory, Department of Civil Engineering, Curtin University, Perth, WA, Australia
| | - Abhijit Mukherjee
- Biologically Activated Materials Laboratory, Department of Civil Engineering, Curtin University, Perth, WA, Australia
| | - Elizabeth L. J. Watkin
- School of Biomedical Sciences, Curtin Health Innovation Research Institute-Biosciences, Curtin University, Perth, WA, Australia
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