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Williamson AJ, Binet M, Sergeant C. Radionuclide biogeochemistry: from bioremediation toward the treatment of aqueous radioactive effluents. Crit Rev Biotechnol 2024; 44:698-716. [PMID: 37258417 DOI: 10.1080/07388551.2023.2194505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 10/07/2022] [Accepted: 01/29/2023] [Indexed: 06/02/2023]
Abstract
Civilian and military nuclear programs of several nations over more than 70 years have led to significant quantities of heterogenous solid, organic, and aqueous radioactive wastes bearing actinides, fission products, and activation products. While many physicochemical treatments have been developed to remediate, decontaminate and reduce waste volumes, they can involve high costs (energy input, expensive sorbants, ion exchange resins, chemical reducing/precipitation agents) or can lead to further secondary waste forms. Microorganisms can directly influence radionuclide solubility, via sorption, accumulation, precipitation, redox, and volatilization pathways, thus offering a more sustainable approach to remediation or effluent treatments. Much work to date has focused on fundamentals or laboratory-scale remediation trials, but there is a paucity of information toward field-scale bioremediation and, to a lesser extent, toward biological liquid effluent treatments. From the few biostimulation studies that have been conducted at legacy weapon production/test sites and uranium mining and milling sites, some marked success via bioreduction and biomineralisation has been observed. However, rebounding of radionuclide mobility from (a)biotic scale-up factors are often encountered. Radionuclide, heavy metal, co-contaminant, and/or matrix effects provide more challenging conditions than traditional industrial wastewater systems, thus innovative solutions via indirect interactions with stable element biogeochemical cycles, natural or engineered cultures or communities of metal and irradiation tolerant strains and reactor design inspirations from existing metal wastewater technologies, are required. This review encompasses the current state of the art in radionuclide biogeochemistry fundamentals and bioremediation and establishes links toward transitioning these concepts toward future radioactive effluent treatments.
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Affiliation(s)
| | - Marie Binet
- EDF R&D, LNHE (Laboratoire National d'Hydraulique et Environnement), Chatou, France
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2
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White-Pettigrew M, Shaw S, Hughes L, Boothman C, Graham J, Abrahamsen-Mills L, Morris K, Lloyd JR. Enhanced Strontium Removal through Microbially Induced Carbonate Precipitation by Indigenous Ureolytic Bacteria. ACS EARTH & SPACE CHEMISTRY 2024; 8:483-498. [PMID: 38533191 PMCID: PMC10961847 DOI: 10.1021/acsearthspacechem.3c00252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/23/2023] [Accepted: 11/27/2023] [Indexed: 03/28/2024]
Abstract
Microbial ureolysis offers the potential to remove metals including Sr2+ as carbonate minerals via the generation of alkalinity coupled to NH4+ and HCO3- production. Here, we investigated the potential for bacteria, indigenous to sediments representative of the U.K. Sellafield nuclear site where 90Sr is present as a groundwater contaminant, to utilize urea in order to target Sr2+-associated (Ca)CO3 formation in sediment microcosm studies. Strontium removal was enhanced in most sediments in the presence of urea only, coinciding with a significant pH increase. Adding the biostimulation agents acetate/lactate, Fe(III), and yeast extract to further enhance microbial metabolism, including ureolysis, enhanced ureolysis and increased Sr and Ca removal. Environmental scanning electron microscopy analyses suggested that coprecipitation of Ca and Sr occurred, with evidence of Sr associated with calcium carbonate polymorphs. Sr K-edge X-ray absorption spectroscopy analysis was conducted on authentic Sellafield sediments stimulated with Fe(III) and quarry outcrop sediments amended with yeast extract. Spectra from the treated Sellafield and quarry sediments showed Sr2+ local coordination environments indicative of incorporation into calcite and vaterite crystal structures, respectively. 16S rRNA gene analysis identified ureolytic bacteria of the genus Sporosarcina in these incubations, suggesting they have a key role in enhancing strontium removal. The onset of ureolysis also appeared to enhance the microbial reduction of Fe(III), potentially via a tight coupling between Fe(III) and NH4+ as an electron donor for metal reduction. This suggests ureolysis may support the immobilization of 90Sr via coprecipitation with insoluble calcium carbonate and cofacilitate reductive precipitation of certain redox active radionuclides, e.g., uranium.
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Affiliation(s)
- Matthew White-Pettigrew
- Research
Centre for Radwaste Disposal and Williamson Research Centre for Molecular
Environmental Science, Department of Earth and Environmental Sciences, The University of Manchester, Manchester M13 9PL, United Kingdom
- National
Nuclear Laboratory, Warrington, Cheshire WA3 6AE, United Kingdom
| | - Samuel Shaw
- Research
Centre for Radwaste Disposal and Williamson Research Centre for Molecular
Environmental Science, Department of Earth and Environmental Sciences, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Lewis Hughes
- Research
Centre for Radwaste Disposal and Williamson Research Centre for Molecular
Environmental Science, Department of Earth and Environmental Sciences, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Christopher Boothman
- Research
Centre for Radwaste Disposal and Williamson Research Centre for Molecular
Environmental Science, Department of Earth and Environmental Sciences, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - James Graham
- National
Nuclear Laboratory, Warrington, Cheshire WA3 6AE, United Kingdom
| | | | - Katherine Morris
- Research
Centre for Radwaste Disposal and Williamson Research Centre for Molecular
Environmental Science, Department of Earth and Environmental Sciences, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Jonathan R. Lloyd
- Research
Centre for Radwaste Disposal and Williamson Research Centre for Molecular
Environmental Science, Department of Earth and Environmental Sciences, The University of Manchester, Manchester M13 9PL, United Kingdom
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3
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Pianfuengfoo S, Kongtunjanphuk S, Zhang H, Sukontasukkul P. Use of buffer treatment to utilize local non-alkali tolerant bacteria in microbial induced calcium carbonate sedimentation in concrete crack repair. Heliyon 2024; 10:e26776. [PMID: 38440293 PMCID: PMC10909746 DOI: 10.1016/j.heliyon.2024.e26776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 02/19/2024] [Accepted: 02/20/2024] [Indexed: 03/06/2024] Open
Abstract
Concrete often suffers cracks due to its low tensile strength. The repair process can vary ranging from surface coating, grouting, and strengthening. Microbial induced calcium carbonate sedimentation process (MICP) is a process of utilizing non-pathogenic bacteria to produce calcium carbonate through its urease activity in crack repair (filling). It is known as an alternative crack repair method that does not utilize Portland cement. In general, the bacteria used in MICP are alkali tolerant bacteria that have a higher chance of surviving the high alkalinity environment in concrete. However, in some regions, alkali tolerant bacteria are difficult to acquire and unavailable locally. This study introduced a technique to utilize non-alkali tolerant bacteria in MICP using buffer treatment. Instead of injecting bacteria directly onto the crack surface, the buffer solution was applied onto the crack surface prior to the bacteria injection. Results from the laboratory indicated a higher bacteria survival rate when the buffer treatment was applied to the medium. For the crack filling, with the buffer treatment, the crack was completely filled within 21-28 days. The microstructure results also showed that the crystal deposits from both laboratory and crack surface were similar in both physical appearance and phase composition.
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Affiliation(s)
- Satharat Pianfuengfoo
- Construction and Building Material Research Center, Department of Civil Engineering, Faculty of Engineer, King Mongkut's University of Technology, North Bangkok, Thailand
| | - Sumonthip Kongtunjanphuk
- Department of Biotechnology, Faculty of Applied Sciences, King Mongkut's University of Technology, North Bangkok, Thailand
| | - Hexin Zhang
- School of Computing, Engineering and the Built Environment, Edinburgh Napier University, Edinburgh, Scotland, United Kingdom
| | - Piti Sukontasukkul
- Construction and Building Material Research Center, Department of Civil Engineering, Faculty of Engineer, King Mongkut's University of Technology, North Bangkok, Thailand
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4
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Kariminia T, Rowshanzamir MA, Abtahi SM, Soleimanian-Zad S, Bak HM, Baghbanan A. Soil microbial improvement using enriched vinasse as a new abundant waste. Sci Rep 2023; 13:22279. [PMID: 38097757 PMCID: PMC10721901 DOI: 10.1038/s41598-023-49401-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 12/07/2023] [Indexed: 12/17/2023] Open
Abstract
This study proposes the use of vinasse, an inexpensive and readily available waste biopolymer, as a fundamental component of a waste culture medium that can enhance the effectiveness and cost-efficiency of the microbial-induced calcite precipitation (MICP) method for sustainable soil improvement. Vinasse enriched with urea, sodium caseinate, or whey protein concentrate is employed to optimize bacterial growth and urease activity of Sporosarcina pasteurii (S. pasteurii) bacterium. The best culture medium is analyzed using Taguchi design of experiments (TDOE) and statistical analysis, considering the concentration of vinasse and urea as effective parameters during growth time. To test the best culture medium for bio-treated soil, direct shear tests were performed on loose and bio-treated sand. The results demonstrate a substantial cost reduction from $0.455 to $0.005 per liter when using the new culture medium (vinasse and urea) compared to the conventional Nutrient Broth (NB) culture medium. Additionally, the new medium enhances soil shear strength, increasing the friction angle by 2.5 degrees and cohesion to 20.7 kPa compared to the conventional medium. Furthermore, the recycling of vinasse as a waste product can promote the progress of a circular economy and reduce environmental pollution. As ground improvement is essential for many construction projects, especially those that require high shear strength or are built on loose soil, this study provides a promising approach to achieving cost-effective and sustainable soil microbial improvement using enriched vinasse.
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Affiliation(s)
- Tahereh Kariminia
- Department of Civil Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Mohammad A Rowshanzamir
- Department of Civil Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - S Mahdi Abtahi
- Department of Civil Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
| | - Sabihe Soleimanian-Zad
- Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan, 84156-83111, Iran
- Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Hamid Mortazavi Bak
- School of Civil and Environmental Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Alireza Baghbanan
- Department of Mining Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran
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Kang X, Csetenyi L, Gadd GM. Fungal biorecovery of cerium as oxalate and carbonate biominerals. Fungal Biol 2023; 127:1187-1197. [PMID: 37495308 DOI: 10.1016/j.funbio.2022.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 07/13/2022] [Accepted: 07/18/2022] [Indexed: 11/30/2022]
Abstract
Cerium is the most sought-after rare earth element (REE) for application in high-tech electronic devices and versatile nanomaterials. In this research, biomass-free spent culture media of Aspergillus niger and Neurospora crassa containing precipitant ligands (oxalate, carbonate) were investigated for their potential application in biorecovery of Ce from solution. Precipitation occurred after Ce3+ was mixed with biomass-free spent culture media and >99% Ce was recovered from media of both organisms. SEM showed that biogenic crystals with distinctive morphologies were formed in the biomass-free spent medium of A. niger. Irregularly-shaped nanoparticles with varying sizes ranging from 0.5 to 2 μm and amorphous biominerals were formed after mixing the carbonate-laden N. crassa supernatant, resulting from ureolysis of supplied urea, with Ce3+. Both biominerals contained Ce as the sole metal, and X-ray diffraction (XRD) and thermogravimetric analyses identified the biominerals resulting from the biomass-free A. niger and N. crassa spent media as cerium oxalate decahydrate [Ce2(C2O4)3·10H2O] and cerium carbonate [Ce2(CO3)3·8H2O], respectively. Thermal decomposition experiments showed that the biogenic Ce oxalates and carbonates could be subsequently transformed into ceria (CeO2). FTIR confirmed that both amorphous and nanoscale Ce carbonates contained carbonate (CO32-) groups. FTIR-multivariate analysis could classify the biominerals into three groups according to different Ce concentrations and showed that Ce carbonate biominerals of higher purity were produced when precipitated at higher Ce3+ concentrations. This work provides new understanding of fungal biotransformations of soluble REE species and their biorecovery using biomass-free fungal culture systems and indicates the potential of using recovered REE as precursors for the biosynthesis of novel nanomaterials.
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Affiliation(s)
- Xia Kang
- Geomicrobiology Group, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, Scotland, United Kingdom; Key Laboratory of Environmental and Applied Microbiology, Chinese Academy of Sciences and Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, Sichuan Province, China
| | - Laszlo Csetenyi
- Concrete Technology Group, Department of Civil Engineering, University of Dundee, Dundee, DD1 4HN, Scotland, United Kingdom
| | - Geoffrey Michael Gadd
- Geomicrobiology Group, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, Scotland, United Kingdom; State Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Oil and Gas Pollution Control, College of Chemical Engineering and Environment, China University of Petroleum, 18 Fuxue Road, Changping District, Beijing, 102249, China.
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6
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Zhang W, Zhang H, Xu R, Qin H, Liu H, Zhao K. Heavy metal bioremediation using microbially induced carbonate precipitation: Key factors and enhancement strategies. Front Microbiol 2023; 14:1116970. [PMID: 36819016 PMCID: PMC9932936 DOI: 10.3389/fmicb.2023.1116970] [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: 12/06/2022] [Accepted: 01/16/2023] [Indexed: 02/05/2023] Open
Abstract
With the development of economy, heavy metal (HM) contamination has become an issue of global concern, seriously threating animal and human health. Looking for appropriate methods that decrease their bioavailability in the environment is crucial. Microbially induced carbonate precipitation (MICP) has been proposed as a promising bioremediation method to immobilize contaminating metals in a sustainable, eco-friendly, and energy saving manner. However, its performance is always affected by many factors in practical application, both intrinsic and external. This paper mainly introduced ureolytic bacteria-induced carbonate precipitation and its implements in HM bioremediation. The mechanism of HM immobilization and in-situ application strategies (that is, biostimulation and bioaugmentation) of MICP are briefly discussed. The bacterial strains, culture media, as well as HMs characteristics, pH and temperature, etc. are all critical factors that control the success of MICP in HM bioremediation. The survivability and tolerance of ureolytic bacteria under harsh conditions, especially in HM contaminated areas, have been a bottleneck for an effective application of MICP in bioremediation. The effective strategies for enhancing tolerance of bacteria to HMs and improving the MICP performance were categorized to provide an in-depth overview of various biotechnological approaches. Finally, the technical barriers and future outlook are discussed. This review may provide insights into controlling MICP treatment technique for further field applications, in order to enable better control and performance in the complex and ever-changing environmental systems.
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Affiliation(s)
- Wenchao Zhang
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, China,*Correspondence: Wenchao Zhang,
| | - Hong Zhang
- Frontiers Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Ruyue Xu
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, China
| | - Haichen Qin
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, China
| | - Hengwei Liu
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou, China
| | - Kun Zhao
- Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China,Insitute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, China
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7
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Elmaloglou A, Terzis D, De Anna P, Laloui L. Microfluidic study in a meter-long reactive path reveals how the medium's structural heterogeneity shapes MICP-induced biocementation. Sci Rep 2022; 12:19553. [PMID: 36379990 PMCID: PMC9666553 DOI: 10.1038/s41598-022-24124-6] [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: 06/14/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022] Open
Abstract
Microbially induced calcium carbonate (CaCO3) precipitation (MICP) is one of the major sustainable alternatives to the artificial cementation of granular media. MICP consists of injecting the soil with bacterial- and calcium-rich solutions sequentially to form calcite bonds among the soil particles that improve the strength and stiffness of soils. The performance of MICP is governed by the underlying microscale processes of bacterial growth, reactive transport of solutes, reaction rates, crystal nucleation and growth. However, the impact of pore-scale heterogeneity on these processes during MICP is not well understood. This paper sheds light on the effect of pore-scale heterogeneity on the spatiotemporal evolution of MICP, overall chemical reaction efficiency and permeability evolution by combining two meter-long microfluidic devices of identical dimensions and porosity with homogeneous and heterogeneous porous networks and real-time monitoring. The two chips received, in triplicate, MICP treatment with an imposed flow and the same initial conditions, while the inlet and outlet pressures were periodically monitored. This paper proposes a comprehensive workflow destined to detect bacteria and crystals from time-lapse microscopy data at multiple positions along a microfluidic replica of porous media treated with MICP. CaCO3 crystals were formed 1 h after the introduction of the cementation solution (CS), and crystal growth was completed 12 h later. The average crystal growth rate was overall higher in the heterogeneous porous medium, while it became slower after the first 3 h of cementation injection. It was found that the average chemical reaction efficiency presented a peak of 34% at the middle of the chip and remained above 20% before the last 90 mm of the reactive path for the heterogeneous porous network. The homogeneous porous medium presented an overall lower average reaction efficiency, which peaked at 27% 420 mm downstream of the inlet and remained lower than 12% for the rest of the microfluidic channel. These different trends of chemical efficiency in the two networks are due to a higher number of crystals of higher average diameter in the heterogeneous medium than in the homogeneous porous medium. In the interval between 480 and 900 mm, the number of crystals in the heterogeneous porous medium is more than double the number of crystals in the homogeneous porous medium. The average diameters of the crystals were 23-46 μm in the heterogeneous porous medium, compared to 17-40 μm in the homogeneous porous medium across the whole chip. The permeability of the heterogeneous porous medium was more affected than that of the homogeneous system, while the pressure sensors effectively captured a higher decrease in the permeability during the first two hours when crystals were formed and a less prominent decrease during the subsequent seeded growth of the existing crystals, as well as the nucleation and growth of new crystals.
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Affiliation(s)
- Ariadni Elmaloglou
- grid.5333.60000000121839049Laboratory of Soil Mechanics, EPFL, 1015 Lausanne, Switzerland
| | - Dimitrios Terzis
- grid.5333.60000000121839049Laboratory of Soil Mechanics, EPFL, 1015 Lausanne, Switzerland
| | - Pietro De Anna
- grid.9851.50000 0001 2165 4204Laboratory of Environmental Fluid Mechanics, UNIL, 1015 Lausanne, Switzerland
| | - Lyesse Laloui
- grid.5333.60000000121839049Laboratory of Soil Mechanics, EPFL, 1015 Lausanne, Switzerland
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Feng C, Zhao S, Zong Y, He Q, Winarto W, Zhang W, Utada AS, Zhao K. Microdroplet-Based In Situ Characterization Of The Dynamic Evolution Of Amorphous Calcium Carbonate during Microbially Induced Calcium Carbonate Precipitation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:11017-11026. [PMID: 35858290 DOI: 10.1021/acs.est.1c08858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Amorphous calcium carbonate (ACC) plays an important role in microbially induced calcium carbonate precipitation (MICP), which has great potential in broad applications such as building restoration, CO2 sequestration, and bioremediation of heavy metals, etc. However, our understanding of ACC is still limited. By combining microscopy of cell-laden microdroplets with confocal Raman microspectroscopy, we investigated the ACC dynamics during MICP. The results show that MICP inside droplets can be divided into three stages: liquid, gel-like ACC, and precipitated CaCO3 stages. In the liquid stage, the droplets are transparent. As the MICP process continues into the gel-like stage, the ACC structure appears and the droplets become opaque. Subsequently, dissolution of the gel-like structure is accompanied by growth of precipitated CaCO3 crystals. The size, morphology, and lifetime of the gel-like structures depend on the Ca2+ concentration. Using polystyrene colloids as tracers, we find that the colloids exhibit diffusive behavior in both the liquid and precipitated CaCO3 stages, while their motion becomes arrested in the gel-like ACC stage. These results provide direct evidence for the formation-dissolution process of the ACC-formed structure and its gel-like mechanical properties. Our work provides a detailed view of the time evolution of ACC and its mechanical properties at the microscale level, which has been lacking in previous studies.
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Affiliation(s)
- Chunying Feng
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P.R. China
| | - Shufeng Zhao
- School of Life and Environmental Sciences, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Yiwu Zong
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P.R. China
| | - Qing He
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - William Winarto
- School of Life and Environmental Sciences, University of Tsukuba, Ibaraki 305-8577, Japan
| | - Wenchao Zhang
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou 215009, P.R. China
| | - Andrew S Utada
- Faculty of Life and Environmental Sciences and Microbial Institute for Sustainability (MiCS), University of Tsukuba, Ibaraki 305-8577, Japan
| | - Kun Zhao
- Frontiers Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P.R. China
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Importance of Carbon to Nitrogen Ratio in Microbial Cement Production: Insights through Experiments and Genome-Scale Metabolic Modelling. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Cui MJ, Teng A, Chu J, Cao B. A quantitative, high-throughput urease activity assay for comparison and rapid screening of ureolytic bacteria. ENVIRONMENTAL RESEARCH 2022; 208:112738. [PMID: 35041816 DOI: 10.1016/j.envres.2022.112738] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/12/2022] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
Urease is a dinickel enzyme commonly found in numerous organisms that catalyses the hydrolysis of urea into ammonia and carbon dioxide. The microbially induced carbonate precipitation (MICP) process mediated by urease-producing bacteria (UPB) can be used for many applications including, environmental bioremediation, soil improvement, healing of cracks in concrete, and sealing of rock joints. Despite the importance of urease and UPB in various applications, a quantitative, high-throughput assay for the comparison of urease activity in UPB and rapid screening of UPB from diverse environments is lacking. Herein, we reported a quantitative, 96-well plate assay for urease activity based on the Christensen's urea agar test. Using this assay, we compared urease activity of six bacterial strains (E. coli BL21, P. putida KT2440, P. aeruginosa PAO1, S. oneidensis MR-1, S. pasteurii DSM 33, and B. megaterium DSM 319) and showed that S. pasteurii DSM 33 exhibited the highest urease activity. We then applied this assay to quantify the inhibitory effect of calcium on urease activity of S. pasteurii DSM 33. No significant inhibition was observed in the presence of calcium at concentrations below 10 mM, while the urease activity decreased rapidly at higher concentrations. At a concentration higher than 200 mM, calcium completely inhibited urease activity under the tested conditions. We further applied this assay to screen for highly active UPB from a wastewater enrichment and identified a strain of S. pasteurii exhibiting a substantially higher urease activity than DSM 33. Taken together, we established a 96-well plate-based quantitative, high-throughput urease activity assay that can be used for comparison and rapid screening of UPB. As UPB and urease activity are of interest to environmental, civil, and medical researchers and practitioners, we envisage wide applications of the assay reported in this study.
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Affiliation(s)
- Ming-Juan Cui
- College of Civil Engineering, Fuzhou University, Fuzhou, 350108, Fujian, China; School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Ave, Singapore, 639798, Singapore
| | - Aloysius Teng
- Singapore Centre for Environmental Life Sciences Engineering, Interdisciplinary Graduate Programme, Graduate College, Nanyang Technological University, 60 Nanyang Dr, Singapore, 637551, Singapore
| | - Jian Chu
- School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Ave, Singapore, 639798, Singapore.
| | - Bin Cao
- School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Ave, Singapore, 639798, Singapore; Singapore Centre for Environmental Life Sciences Engineering, Interdisciplinary Graduate Programme, Graduate College, Nanyang Technological University, 60 Nanyang Dr, Singapore, 637551, Singapore.
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11
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Izumoto S, Huisman JA, Zimmermann E, Heyman J, Gomez F, Tabuteau H, Laniel R, Vereecken H, Méheust Y, Le Borgne T. Pore-Scale Mechanisms for Spectral Induced Polarization of Calcite Precipitation Inferred from Geo-Electrical Millifluidics. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:4998-5008. [PMID: 35353529 DOI: 10.1021/acs.est.1c07742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Spectral induced polarization (SIP) has the potential for monitoring reactive processes in the subsurface. While strong SIP responses have been measured in response to calcite precipitation, their origin and mechanism remain debated. Here we present a novel geo-electrical millifluidic setup designed to observe microscale reactive transport processes while performing SIP measurements. We induced calcite precipitation by injecting two reactive solutions into a porous medium, which led to highly localized precipitates at the mixing interface. Strikingly, the amplitude of the SIP response increased by 340% during the last 7% increase in precipitate volume. Furthermore, while the peak frequency in SIP response varied spatially over 1 order of magnitude, the crystal size range was similar along the front, contradicting assumptions in the classical grain polarization model. We argue that the SIP response of calcite precipitation in such mixing fronts is governed by Maxwell-Wagner polarization due to the establishment of a precipitate wall. Numerical simulations of the electric field suggested that spatial variation in peak frequency was related to the macroscopic shape of the front. These findings provide new insights into the SIP response of calcite precipitation and highlight the potential of geoelectrical millifluidics for understanding and modeling electrical signatures of reactive transport processes.
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Affiliation(s)
- Satoshi Izumoto
- Agrosphere (IBG-3), Institute of Bio- and Geosciences, Forschungszentrum Jülich, Jülich 52425, Germany
- Université de Rennes 1, CNRS, Géosciences Rennes, UMR 6118, Rennes 35042, France
| | - Johan Alexander Huisman
- Agrosphere (IBG-3), Institute of Bio- and Geosciences, Forschungszentrum Jülich, Jülich 52425, Germany
| | - Egon Zimmermann
- Electronic Systems (ZEA-2), Central Institute for Engineering, Electronics and Analytics, Forschungszentrum Jülich, Jülich 52425, Germany
| | - Joris Heyman
- Université de Rennes 1, CNRS, Géosciences Rennes, UMR 6118, Rennes 35042, France
| | - Francesco Gomez
- Université de Rennes 1, CNRS, Géosciences Rennes, UMR 6118, Rennes 35042, France
| | - Hervé Tabuteau
- Université de Rennes 1, CNRS, Institute de Physique de Rennes, Rennes 35042, France
| | - Romain Laniel
- Université de Rennes 1, CNRS, Institute de Physique de Rennes, Rennes 35042, France
| | - Harry Vereecken
- Agrosphere (IBG-3), Institute of Bio- and Geosciences, Forschungszentrum Jülich, Jülich 52425, Germany
| | - Yves Méheust
- Université de Rennes 1, CNRS, Géosciences Rennes, UMR 6118, Rennes 35042, France
| | - Tanguy Le Borgne
- Université de Rennes 1, CNRS, Géosciences Rennes, UMR 6118, Rennes 35042, France
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12
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Proudfoot D, Brooks L, Gammons CH, Barth E, Bless D, Nagisetty RM, Lauchnor EG. Investigating the potential for microbially induced carbonate precipitation to treat mine waste. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127490. [PMID: 34740156 PMCID: PMC8822478 DOI: 10.1016/j.jhazmat.2021.127490] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 10/01/2021] [Accepted: 10/08/2021] [Indexed: 05/05/2023]
Abstract
In this study, the feasibility of promoting microbially induced carbonate precipitation (MICP) in mine waste piles by using an environmental bacterial enrichment is explored, with goals to reduce metals and acid leaching. MICP has been explored for remediation applications and stabilization of mine waste. Here, we utilize a native bacterial enrichment to promote MICP on seven mine waste samples with variability in acid production and extent of toxic metal leaching. During fifteen applications of MICP solutions and bacteria on waste rock in bench-scale columns, calcium carbonate formed on grain surfaces within all waste samples, though microscopy revealed uneven distribution of CaCO3 coating. The effluent from acid-producing wastes increased in pH during MICP treatment. MICP performance was evaluated with humidity cell and synthetic precipitation leaching procedure (SPLP) tests. Leaching tests revealed reductions in Cd, Pb and Zn concentrations in leachate of all but one sample, mixed results for Cu, and As increasing in all but one leachate sample after treatment. MICP technology has potential for coating mine waste and reducing release of acid and some metals. This study provides a laboratory assessment of MICP feasibility for stabilizing mine waste in situ and mitigating release of toxic metals into the environment.
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Affiliation(s)
- Dylan Proudfoot
- Montana State University, Civil Engineering Department, Bozeman, MT, USA
| | - Loran Brooks
- Montana Technological University, Environmental Engineering Department, Butte, MT, USA
| | | | - Edwin Barth
- Center for Environmental Solutions and Emergency Response, Environmental Protection Agency Office of Research and Development, Cincinnati, OH, USA
| | - Diana Bless
- Center for Environmental Solutions and Emergency Response, Environmental Protection Agency Office of Research and Development, Cincinnati, OH, USA
| | - Raja M Nagisetty
- Montana Technological University, Environmental Engineering Department, Butte, MT, USA
| | - Ellen G Lauchnor
- Montana State University, Civil Engineering Department, Bozeman, MT, USA.
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13
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Parvulescu VI, Epron F, Garcia H, Granger P. Recent Progress and Prospects in Catalytic Water Treatment. Chem Rev 2021; 122:2981-3121. [PMID: 34874709 DOI: 10.1021/acs.chemrev.1c00527] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Presently, conventional technologies in water treatment are not efficient enough to completely mineralize refractory water contaminants. In this context, the implementation of catalytic processes could be an alternative. Despite the advantages provided in terms of kinetics of transformation, selectivity, and energy saving, numerous attempts have not yet led to implementation at an industrial scale. This review examines investigations at different scales for which controversies and limitations must be solved to bridge the gap between fundamentals and practical developments. Particular attention has been paid to the development of solar-driven catalytic technologies and some other emerging processes, such as microwave assisted catalysis, plasma-catalytic processes, or biocatalytic remediation, taking into account their specific advantages and the drawbacks. Challenges for which a better understanding related to the complexity of the systems and the coexistence of various solid-liquid-gas interfaces have been identified.
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Affiliation(s)
- Vasile I Parvulescu
- Department of Organic Chemistry, Biochemistry and Catalysis, University of Bucharest, B-dul Regina Elisabeta 4-12, Bucharest 030016, Romania
| | - Florence Epron
- Université de Poitiers, CNRS UMR 7285, Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), 4 rue Michel Brunet, TSA 51106, 86073 Poitiers Cedex 9, France
| | - Hermenegildo Garcia
- Instituto Universitario de Tecnología Química, Universitat Politecnica de Valencia-Consejo Superior de Investigaciones Científicas, Universitat Politencia de Valencia, Av. de los Naranjos s/n, 46022 Valencia, Spain
| | - Pascal Granger
- CNRS, Centrale Lille, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide, Univ. Lille, F-59000 Lille, France
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14
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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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15
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Reinforcement of Recycled Aggregate by Microbial-Induced Mineralization and Deposition of Calcium Carbonate—Influencing Factors, Mechanism and Effect of Reinforcement. CRYSTALS 2021. [DOI: 10.3390/cryst11080887] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Recycled aggregate is aggregate prepared from construction waste. With the development of a global economy and people’s attention to sustainable development, recycled aggregate has shown advantages in replacing natural aggregate in the production of concrete due to its environmental friendliness, low energy consumption, and low cost. Recycled aggregate exhibits high water absorption and a multi-interface transition zone, which limits its application scope. Researchers have used various methods to improve the properties of recycled aggregate, such as microbially induced calcium carbonate precipitation (MICP) technology. In this paper, the results of recent studies on the reinforcement of recycled aggregate by MICP technology are synthesized, and the factors affecting the strengthening effect of recycled aggregate are reviewed. Moreover, the strengthening mechanism, advantages and disadvantages of MICP technology are summarized. After the modified treatment, the aggregate performance is significantly improved. Regardless of whether the aggregate was used in mortar or concrete, the mechanical properties of the specimens were clearly improved. However, there are some issues regarding the application of MICP technology, such as the use of an expensive culture medium, a long modification cycle, and untargeted mineralization deposition. These difficulties need to be overcome in the future for the industrialization of regenerated aggregate materials via MICP technology.
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16
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Chen M, Li Y, Jiang X, Zhao D, Liu X, Zhou J, He Z, Zheng C, Pan X. Study on soil physical structure after the bioremediation of Pb pollution using microbial-induced carbonate precipitation methodology. JOURNAL OF HAZARDOUS MATERIALS 2021; 411:125103. [PMID: 33858089 DOI: 10.1016/j.jhazmat.2021.125103] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 12/25/2020] [Accepted: 01/07/2021] [Indexed: 06/12/2023]
Abstract
Soil structure is an important index to evaluate soil quality; however, previous researchers have only paid attention to the effect and economic benefits of soil heavy metal remediation. In this study, microbial-induced carbonate precipitation (MICP) technology was used to remediate soil Pb pollution, and its effect on soil structure was studied by sieving and X-ray computed tomography techniques. The results showed that the leaching amount of heavy metals in soil decreased by 76.34% after remediation. Interestingly, due to the addition of organic matter and microorganisms, the soil particle size changed from microaggregates to large aggregates, and the large soil particle size (diameter > 2 mm) increased significantly by 71.43%. The soil porosity increased by 73.78%, which enhanced the soil permeability and increased the soil hydraulic conductivity. Therefore, MICP bioremediation not only remediated soil heavy metal pollution but also promoted the soil aggregation structure, which has important significance for soil remediation and improvement.
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Affiliation(s)
- Minjie Chen
- School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, People's Republic of China; Inner Mongolia Engineering Research Center of Evaluation and Restoration in the Mining Ecological Environments, Baotou 014010, People's Republic of China
| | - Yafei Li
- School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, People's Republic of China; Inner Mongolia Engineering Research Center of Evaluation and Restoration in the Mining Ecological Environments, Baotou 014010, People's Republic of China
| | - Xiaoru Jiang
- School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, People's Republic of China; Inner Mongolia Engineering Research Center of Evaluation and Restoration in the Mining Ecological Environments, Baotou 014010, People's Republic of China
| | - Dingran Zhao
- School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, People's Republic of China; Inner Mongolia Engineering Research Center of Evaluation and Restoration in the Mining Ecological Environments, Baotou 014010, People's Republic of China
| | - Xuefeng Liu
- School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, People's Republic of China; Inner Mongolia Engineering Research Center of Evaluation and Restoration in the Mining Ecological Environments, Baotou 014010, People's Republic of China
| | - Jianlin Zhou
- School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, People's Republic of China; Inner Mongolia Engineering Research Center of Evaluation and Restoration in the Mining Ecological Environments, Baotou 014010, People's Republic of China
| | - Zhanfei He
- Zhejiang University of Technology Zhejiang Univ Technol, Coll Environm, Key Lab Microbial Technol Ind Pollut Control Zhej, Hangzhou 310014, People's Republic of China
| | - Chunli Zheng
- School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, People's Republic of China; Inner Mongolia Engineering Research Center of Evaluation and Restoration in the Mining Ecological Environments, Baotou 014010, People's Republic of China; Key Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources, Baotou 014010, People's Republic of China.
| | - Xiangliang Pan
- Zhejiang University of Technology Zhejiang Univ Technol, Coll Environm, Key Lab Microbial Technol Ind Pollut Control Zhej, Hangzhou 310014, People's Republic of China.
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17
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Rajasekar A, Wilkinson S, Moy CK. MICP as a potential sustainable technique to treat or entrap contaminants in the natural environment: A review. ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 2021; 6:100096. [PMID: 36159179 PMCID: PMC9488051 DOI: 10.1016/j.ese.2021.100096] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/06/2021] [Accepted: 05/07/2021] [Indexed: 05/25/2023]
Abstract
In the last two decades, developments in the area of biomineralization has yielded promising results making it a potentially environmentally friendly technique for a wide range of applications in engineering and wastewater/heavy metal remediation. Microbially Induced Carbonate Precipitation (MICP) has led to numerous patented applications ranging from novel strains and nutrient sources for the precipitation of biominerals. Studies are being constantly published to optimize the process to become a promising, cost effective, ecofriendly approach when compared with the existing traditional remediation technologies which are implemented to solve multiple contamination/pollution issues. Heavy metal pollution still poses a major threat towards compromising the ecosystem. The removal of heavy metals is of high importance due to their recalcitrance and persistence in the environment. In that perspective, this paper reviews the current and most significant discoveries and applications of MICP towards the conversion of heavy metals into heavy metal carbonates and removal of calcium from contaminated media such as polluted water. It is evident from the literature survey that although heavy metal carbonate research is very effective in removal, is still in its early stages but could serve as a solution if the microorganisms are stimulated directly in the heavy metal environment.
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Affiliation(s)
- Adharsh Rajasekar
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CIC-AEET), Nanjing University of Information Science &Technology, Nanjing, 210044, China
| | - Stephen Wilkinson
- Department of Civil Engineering, University of Wollongong in Dubai, Dubai, United Arab Emirates
| | - Charles K.S. Moy
- Department of Civil Engineering, Xi'an Jiaotong Liverpool University, Suzhou, Jiangsu, China
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18
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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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19
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Xia H, Zhou M, Wei X, Zhang X, Wu Z. Slow and Sustained Release of Carbonate Ions from Amino Acids for Controlled Hydrothermal Growth of Alkaline-Earth Carbonate Single Crystals. ACS OMEGA 2020; 5:14123-14132. [PMID: 32566880 PMCID: PMC7301596 DOI: 10.1021/acsomega.0c01719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 05/21/2020] [Indexed: 05/16/2023]
Abstract
Alkaline-earth metal carbonate materials have attracted wide interest because of their high value in many applications. Various sources of carbonate ions (CO3 2-), such as CO2 gas, alkaline-metal carbonate salts, and urea, have been reported for the synthesis of metal carbonate crystals, yet a slow and sustained CO3 2- release approach for controlled crystal growth is much desired. In this paper, we demonstrate a new chemical approach toward slow and sustained CO3 2- release for hydrothermal growth of large alkaline-earth metal carbonate single crystals. Such an approach is enabled by the multiple hydrolysis of a small basic amino acid (arginine, Arg). Namely, the amino groups of Arg hydrolyze to form OH- ions, making the solution basic, and the hydrolysis of the guanidyl group of Arg is hydrothermally triggered to produce urea and ammonia, followed by the hydrolysis of urea to produce CO2 and ammonia and then the release of CO3 2- because of the reaction between CO2 and the OH- ions hydrolyzed from ammonia. Such a CO3 2- release behavior enables the slow and controlled growth of various carbonate single crystals over a wide range of pH values. The growth of uniform rhombohedron MgCO3 single crystals with variable morphologies and crystal sizes is studied in detail. The influences of reaction temperature, solution pH, precursor type, and concentration on the morphology and size of the resulting MgCO3 crystals are elucidated. The crystal evolution mechanism is also proposed and discussed with various supportive data.
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20
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Naveed M, Duan J, Uddin S, Suleman M, Hui Y, Li H. Application of microbially induced calcium carbonate precipitation with urea hydrolysis to improve the mechanical properties of soil. ECOLOGICAL ENGINEERING 2020; 153:105885. [DOI: 10.1016/j.ecoleng.2020.105885] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/28/2023]
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21
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Biostimulation in Desert Soils for Microbial-Induced Calcite Precipitation. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10082905] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Microbial-induced calcite precipitation (MICP) is a soil amelioration technique aiming to mitigate different environmental and engineering concerns, including desertification, soil erosion, and soil liquefaction, among others. The hydrolysis of urea, catalyzed by the microbial enzyme urease, is considered the most efficient microbial pathway for MICP. Biostimulated MICP relies on the enhancement of indigenous urea-hydrolyzing bacteria by providing an appropriate enrichment and precipitation medium, as opposed to bioaugmentation, which requires introducing large volumes of exogenous bacterial cultures into the treated soil along with a growth and precipitation medium. Biostimulated MICP in desert soils is challenging as the total carbon content and the bacterial abundance are considerably low. In this study, we examined the biostimulation potential in soils from the Negev Desert, Israel, for the purpose of mitigation of topsoil erosion in arid environments. Incubating soil samples in urea and enrichment media demonstrated effective urea hydrolysis leading to pH increase, which is necessary for calcite precipitation. Biostimulation rates were found to increase with concentrations of energy (carbon) source in the stimulation media, reaching its maximal levels within 3 to 6 days. Following stimulation, calcium carbonate precipitation was induced by spiking stimulated bacteria in precipitation (CaCl2 enriched) media. The results of our research demonstrate that biostimulated MICP is feasible in the low-carbon, mineral soils of the northern Negev Desert in Israel.
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22
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Osinubi KJ, Eberemu AO, Ijimdiya TS, Yakubu SE, Gadzama EW, Sani JE, Yohanna P. Review of the use of microorganisms in geotechnical engineering applications. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-1974-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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23
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Morais S, Cario A, Liu N, Bernard D, Lecoutre C, Garrabos Y, Ranchou-Peyruse A, Dupraz S, Azaroual M, Hartman RL, Marre S. Studying key processes related to CO 2 underground storage at the pore scale using high pressure micromodels. REACT CHEM ENG 2020. [DOI: 10.1039/d0re00023j] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Micromodels experimentation for studying and understanding CO2 geological storage mechanisms at the pore scale.
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Affiliation(s)
| | - Anaïs Cario
- CNRS
- Univ. Bordeaux
- Bordeaux INP
- ICMCB
- Pessac Cedex
| | - Na Liu
- CNRS
- Univ. Bordeaux
- Bordeaux INP
- ICMCB
- Pessac Cedex
| | | | | | | | | | | | | | - Ryan L. Hartman
- Department of Chemical and Biomolecular Engineering
- New York University
- Brooklyn
- USA
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24
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Abstract
This study aims to characterize the effect of microbial-induced calcite precipitation (MICP) on the desiccation cracking behaviors of compacted calcium bentonite soils. We prepare six groups of samples by mixing bentonites with deionized water, pure bacteria solution, pure cementation solution, and mixed bacteria and cementation solutions at three different percentages. We use an image processing tool to characterize the soil desiccation cracking patterns. Experimental results reveal the influences of fluid type and mixture percentage on the crack evolution and volumetric deformation of bentonite soils. MICP reactions effectively delay the crack initiation and remediate desiccation cracking, as reflected by the decreased geometrical descriptors of the crack pattern such as surface crack ratio. The mixture containing 50% bacteria and 50% cementation solutions maximizes the MICP treatment and works most effectively in lowering the soil cracking potential. This study provides new insights into the desiccation cracking of expansive clayey soils and shows the potential of MICP applications in the crack remediation.
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25
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Gomez MG, Graddy CMR, DeJong JT, Nelson DC. Biogeochemical Changes During Bio-cementation Mediated by Stimulated and Augmented Ureolytic Microorganisms. Sci Rep 2019; 9:11517. [PMID: 31395919 PMCID: PMC6687734 DOI: 10.1038/s41598-019-47973-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 07/26/2019] [Indexed: 11/09/2022] Open
Abstract
Microbially Induced Calcite Precipitation (MICP) is a bio-mediated cementation process that can improve the engineering properties of granular soils through the precipitation of calcite. The process is made possible by soil microorganisms containing urease enzymes, which hydrolyze urea and enable carbonate ions to become available for precipitation. While most researchers have injected non-native ureolytic bacteria to complete bio-cementation, enrichment of native ureolytic microorganisms may enable reductions in process treatment costs and environmental impacts. In this study, a large-scale bio-cementation experiment involving two 1.7-meter diameter tanks and a complementary soil column experiment were performed to investigate biogeochemical differences between bio-cementation mediated by either native or augmented (Sporosarcina pasteurii) ureolytic microorganisms. Although post-treatment distributions of calcite and engineering properties were similar between approaches, the results of this study suggest that significant differences in ureolysis rates and related precipitation rates between native and augmented microbial communities may influence the temporal progression and spatial distribution of bio-cementation, solution biogeochemical changes, and precipitate microstructure. The role of urea hydrolysis in enabling calcite precipitation through sustained super-saturation following treatment injections is explored.
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Affiliation(s)
- Michael G Gomez
- Department of Civil and Environmental Engineering, University of Washington, Seattle, WA, 98195, USA.
| | - Charles M R Graddy
- Department of Microbiology and Molecular Genetics, University of California, Davis, CA, 95616, USA
| | - Jason T DeJong
- Department of Civil and Environmental Engineering, University of California, Davis, CA, 95616, USA
| | - Douglas C Nelson
- Department of Microbiology and Molecular Genetics, University of California, Davis, CA, 95616, USA
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26
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Global CO2 Emission-Related Geotechnical Engineering Hazards and the Mission for Sustainable Geotechnical Engineering. ENERGIES 2019. [DOI: 10.3390/en12132567] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Global warming and climate change caused by greenhouse gas (GHG) emissions have rapidly increased the occurrence of abnormal climate events, and both the scale and frequency of geotechnical engineering hazards (GEHs) accordingly. In response, geotechnical engineers have a responsibility to provide countermeasures to mitigate GEHs through various ground improvement techniques. Thus, this study provides a comprehensive review of the possible correlation between GHG emissions and GEHs using statistical data, a review of ground improvement methods that have been studied to reduce the carbon footprint of geotechnical engineering, and a discussion of the direction in which geotechnical engineering should proceed in the future.
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27
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Zambare NM, Lauchnor EG, Gerlach R. Controlling the Distribution of Microbially Precipitated Calcium Carbonate in Radial Flow Environments. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:5916-5925. [PMID: 31008588 DOI: 10.1021/acs.est.8b06876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Bacterially driven reactions such as ureolysis can induce calcium carbonate precipitation, a well-studied process called microbially induced calcium carbonate precipitation (MICP). MICP is of interest in subsurface applications such as sealing leaks around wells. For effective field deployment, it is important to study MICP under radial flow conditions, which are relevant to near-well environments. In this study, a laboratory-scale radial flow reactor of 23 cm diameter, with a 1 mm glass bead monolayer serving as a porous medium, was used to investigate the effects of fluid flow rates and calcium concentrations on the mass and distribution of MICP by the ureolytic bacterium Sporosarcina pasteurii. Experiments were performed at hydraulic residence times of 14, 7, and 3.5 min and calcium to urea molar ratios of 0.5:1, 1:1, and 2:1. The total amount of CaCO3 precipitated in the reactor increased with increasing residence time and with decreasing Ca2+ to urea molar ratios. Increased bacterial attachment and increased CaCO3 precipitation were observed with distance from the center inlet of the reactor in all experiments. More uniform calcium distribution was achieved at lower flow rates. The relationship between reaction and transport rate (i.e., the Damköhler number) is identified as a useful parameter for the prediction of MICP in radial flow environments.
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28
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Rajasekar A, Wilkinson S, Sekar R, Bridge J, Medina-Roldán E, Moy CK. Biomineralisation performance of bacteria isolated from a landfill in China. Can J Microbiol 2018; 64:945-953. [DOI: 10.1139/cjm-2018-0254] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We report an investigation of microbially induced carbonate precipitation by seven indigenous bacteria isolated from a landfill in China. Bacterial strains were cultured in a medium supplemented with 25 mmol/L calcium chloride and 333 mmol/L urea. The experiments were carried out at 30 °C for 7 days with agitation by a shaking table at 130 r/min. Scanning electron microscopic and X-ray diffraction analyses showed variations in calcium carbonate polymorphs and mineral composition induced by all bacterial strains. The amount of carbonate precipitation was quantified by titration. The amount of carbonate precipitated in the medium varied among isolates, with the lowest being Bacillus aerius rawirorabr15 (LC092833) precipitating around 1.5 times more carbonate per unit volume than the abiotic (blank) solution. Pseudomonas nitroreducens szh_asesj15 (LC090854) was found to be the most efficient, precipitating 3.2 times more carbonate than the abiotic solution. Our results indicate that bacterial carbonate precipitation occurred through ureolysis and suggest that variations in carbonate crystal polymorphs and rates of precipitation were driven by strain-specific differences in urease expression and response to the alkaline environment. These results and the method applied provide benchmarking and screening data for assessing the bioremediation potential of indigenous bacteria for containment of contaminants in landfills.
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Affiliation(s)
- Adharsh Rajasekar
- Department of Civil Engineering, Xi’an Jiaotong – Liverpool University, Suzhou 215123, Jiangsu, P.R. China
| | - Stephen Wilkinson
- Department of Civil Engineering, University of Wolverhampton, Wolverhampton WV1 1LY, UK
| | - Raju Sekar
- Department of Biological Sciences, Xi’an Jiaotong – Liverpool University, Suzhou 215123, Jiangsu, P.R. China
| | - Jonathan Bridge
- Department of the Natural and Built Environment, Sheffield Hallam University, Sheffield S1 1WB, UK
| | - Eduardo Medina-Roldán
- Department of Environmental Science, Xi’an Jiaotong – Liverpool University, Suzhou 215123, Jiangsu, P.R. China
| | - Charles K.S. Moy
- Department of Civil Engineering, Xi’an Jiaotong – Liverpool University, Suzhou 215123, Jiangsu, P.R. China
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Zhang W, Ju Y, Zong Y, Qi H, Zhao K. In Situ Real-Time Study on Dynamics of Microbially Induced Calcium Carbonate Precipitation at a Single-Cell Level. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:9266-9276. [PMID: 30036465 DOI: 10.1021/acs.est.8b02660] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Ureolytic microbially induced calcium carbonate precipitation (MICP) is a promising green technique for addressing a variety of environmental and architectural concerns. However, the dynamics of MICP especially at the microscopic level remains relatively unexplored. In this work, by applying a bacterial tracking technique, the growth dynamics of micrometer-sized calcium carbonate precipitates induced by Sporosarcina pasteurii were studied at a single-cell resolution. The growth of micrometer-scale precipitates and the occurrence and dissolution of many unstable submicrometer calcium carbonate particles were observed in the precipitation process. More interestingly, we observed that micrometer-sized precipitated crystals did not grow on negatively charged cell surfaces nor on other tested polystyrene microspheres with different negatively charged surface modifications, indicating that a negatively charged surface was not a sufficient property for nucleating the growth of precipitates in the MICP process under the conditions used in this study. Our observations imply that the frequently cited model of bacterial cell surfaces as nucleation sites for precipitates during MICP is oversimplified. In addition, additional growth of calcium carbonates was observed on old precipitates collected from previous runs. The presence of bacterial cells was also shown to affect both morphologies and crystalline structures of precipitates, and both calcite and vaterite precipitates were found when cells physically coexisted with precipitates. This study provides new insights into the regulation of MICP through dynamic control of precipitation.
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Affiliation(s)
- Wenchao Zhang
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , China
| | - Ying Ju
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , China
| | - Yiwu Zong
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , China
| | - Hao Qi
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , China
| | - Kun Zhao
- Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , China
- Collaborative Innovation Centre of Chemical Science and Engineering , Tianjin University , Tianjin 300072 , China
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Graddy CMR, Gomez MG, Kline LM, Morrill SR, DeJong JT, Nelson DC. Diversity of Sporosarcina-like Bacterial Strains Obtained from Meter-Scale Augmented and Stimulated Biocementation Experiments. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:3997-4005. [PMID: 29505251 DOI: 10.1021/acs.est.7b04271] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Microbially Induced Calcite Precipitation (MICP) is a biomediated soil cementation process that offers an environmentally conscious alternative to conventional geotechnical soil improvement technologies. This study provides the first comparison of ureolytic bacteria isolated from sand cemented in parallel, meter-scale, MICP experiments using either biostimulation or bioaugmentation approaches, wherein colonies resembling the augmented strain ( Sporosarcina pasteurii ATCC 11859) were interrogated. Over the 13 day experiment, 47 of the 57 isolates collected were strains of Sporosarcina and the diversity of these strains was high, with 20 distinct strains belonging to 5 species identified. Although the S. pasteurii inoculant used for augmentation was recovered immediately after introduction in the augmented specimen, the strain was not recovered after 8 days in either augmented or stimulated soils, suggesting that it competes poorly with indigenous bacteria. Past studies on the physiological properties of S. pasteurii ATCC 11859 suggest that close relatives may have selective advantages under the biogeochemical conditions employed during MICP; however, the extent to which these properties apply to isolates of the current study is unknown. Whole cell urease kinetic properties were investigated for representative isolates and suggest up to 100-fold higher rates of carbonate production when compared to other biomediated processes proposed for MICP.
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El Mountassir G, Minto JM, van Paassen LA, Salifu E, Lunn RJ. Applications of Microbial Processes in Geotechnical Engineering. ADVANCES IN APPLIED MICROBIOLOGY 2018; 104:39-91. [PMID: 30143252 DOI: 10.1016/bs.aambs.2018.05.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Over the last 10-15 years, a new field of "biogeotechnics" has emerged as geotechnical engineers seek to find ground improvement technologies which have the potential to be lower carbon, more ecologically friendly, and more cost-effective than existing practices. This review summarizes the developments which have occurred in this new field, outlining in particular the microbial processes which have been shown to be most promising for altering the hydraulic and mechanical responses of soils and rocks. Much of the research effort in this new field has been focused on microbially induced carbonate precipitation (MICP) via ureolysis, while a comprehensive review of MICP is presented here, the developments which have been made regarding other microbial processes, including MICP via denitrification and biogenic gas generation are also presented. Furthermore, this review outlines a new area of study: the potential deployment of fungi in geotechnical applications which has until now been unexplored.
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Affiliation(s)
- Grainne El Mountassir
- Department of Civil and Environmental Engineering, University of Strathclyde, Glasgow, United Kingdom.
| | - James M Minto
- Department of Civil and Environmental Engineering, University of Strathclyde, Glasgow, United Kingdom
| | - Leon A van Paassen
- Center for Bio-mediated and Bio-inspired Geotechnics (CBBG), Arizona State University, Tempe, AZ, United States
| | - Emmanuel Salifu
- Department of Civil and Environmental Engineering, University of Strathclyde, Glasgow, United Kingdom; Dipartimento di Ingegneria Civile, Edile e Ambientale, Università di Napoli Federico II, Naples, Italy
| | - Rebecca J Lunn
- Department of Civil and Environmental Engineering, University of Strathclyde, Glasgow, United Kingdom
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Burt CD, Cabrera ML, Rothrock MJ, Kissel DE. Urea Hydrolysis and Calcium Carbonate Precipitation in Gypsum-Amended Broiler Litter. JOURNAL OF ENVIRONMENTAL QUALITY 2018; 47:162-169. [PMID: 29415101 DOI: 10.2134/jeq2017.08.0337] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Broiler () litter is subject to ammonia (NH) volatilization losses. Previous work has shown that the addition of gypsum to broiler litter can increase nitrogen mineralization and decrease NH losses due to a decrease in pH, but the mechanisms responsible for these effects are not well understood. Therefore, three laboratory studies were conducted to evaluate the effect of gypsum addition to broiler litter on (i) urease activity at three water contents, (ii) calcium carbonate precipitation, and (iii) pH. The addition of gypsum to broiler litter increased ammonium concentrations ( < 0.0033) and decreased litter pH by 0.43 to 0.49 pH units after 5 d ( < 0.0001); however, the rate of urea hydrolysis in treated litter only increased on Day 0 for broiler litter with low (0.29 g HO g) and high (0.69 g HO g) water contents, and on Day 3 for litter with medium (0.40 g HO g) water content ( < 0.05). Amending broiler litter with gypsum also caused an immediate decrease in litter pH (0.22 pH units) due to the precipitation of calcium carbonate (CaCO) from gypsum-derived calcium and litter bicarbonate. Furthermore, as urea was hydrolyzed, more urea-derived carbon precipitated as CaCO in gypsum-treated litter than in untreated litter ( < 0.001). These results indicate that amending broiler litter with gypsum favors the precipitation of CaCO, which buffers against increases in litter pH that are known to facilitate NH volatilization.
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Isolation and characterization of urease-producing bacteria from tropical peat. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2018. [DOI: 10.1016/j.bcab.2017.12.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Rajasekar A, Moy CK, Wilkinson S. MICP and Advances towards Eco-Friendly and Economical Applications. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1755-1315/78/1/012016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Dhami NK, Alsubhi WR, Watkin E, Mukherjee A. Bacterial Community Dynamics and Biocement Formation during Stimulation and Augmentation: Implications for Soil Consolidation. Front Microbiol 2017; 8:1267. [PMID: 28744265 PMCID: PMC5504299 DOI: 10.3389/fmicb.2017.01267] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Accepted: 06/23/2017] [Indexed: 11/23/2022] Open
Abstract
Microbially-induced CaCO3 precipitation (MICP) is a naturally occurring process wherein durable carbonates are formed as a result of microbial metabolic activities. In recent years, MICP technology has been widely harnessed for applications in civil engineering wherein synthesis of calcium carbonate crystals occurs at ambient temperature paving way for low energy biocement. MICP using pure urease (UA) and carbonic anhydrase (CA) producing bacteria has been promising in laboratory conditions. In the current study we enriched ureolytic and carbonic anhydrase communities in calcareous soil under biostimulation and bioaugmentation conditions and investigated the effect of microbial dynamics on carbonate precipitation, calcium carbonate polymorph selection and consolidation of biological sand column under nutrient limited and rich conditions. All treatments for stimulation and augmentation led to significant changes in the composition of indigenous bacterial population. Biostimulation as well as augmentation through the UA route was found to be faster and more effective compared to the CA route in terms of extracellular enzyme production and carbonate precipitation. Synergistic role of augmented cultures along with indigenous communities was recorded via both the routes of UA and CA as more effective calcification was seen in case of augmentation compared to stimulation. The survival of supplemented isolates in presence of indigenous bacterial communities was confirmed through sequencing of total diversity and it was seen that both UA and CA isolate had the potential to survive along with native communities under high nutrient conditions. Nutrient conditions played significant role in determining calcium carbonate polymorph fate as calcitic crystals dominated under high carbon supplementation. Finally, the consolidation of sand columns via stimulation and augmentation was successfully achieved through both UA and CA route under high nutrient conditions but higher consolidation in short time period was noticed in UA route. The study reports that based upon the organic carbon content in native soils, stimulation can be favored at sites with high organic carbon content while augmentation with repeated injections of nutrients can be applied on poor nutrient soils via different enrichment routes of microbial metabolism.
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Affiliation(s)
- Navdeep K Dhami
- Biologically Activated Materials Laboratory, Department of Civil Engineering, Curtin UniversityPerth, WA, Australia
| | - Walaa R Alsubhi
- School of Biomedical Sciences, Curtin Health Innovation Research Institute-Biosciences, Curtin UniversityPerth, WA, Australia
| | - Elizabeth Watkin
- School of Biomedical Sciences, Curtin Health Innovation Research Institute-Biosciences, Curtin UniversityPerth, WA, Australia
| | - Abhijit Mukherjee
- Biologically Activated Materials Laboratory, Department of Civil Engineering, Curtin UniversityPerth, WA, Australia
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Bray JM, Lauchnor EG, Redden GD, Gerlach R, Fujita Y, Codd SL, Seymour JD. Impact of Mineral Precipitation on Flow and Mixing in Porous Media Determined by Microcomputed Tomography and MRI. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:1562-1569. [PMID: 28001377 DOI: 10.1021/acs.est.6b02999] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Precipitation reactions influence transport properties in porous media and can be coupled to advective and dispersive transport. For example, in subsurface environments, mixing of groundwater and injected solutions can induce mineral supersaturation of constituents and drive precipitation reactions. Magnetic resonance imaging (MRI) and microcomputed tomography (μ-CT) were employed as complementary techniques to evaluate advection, dispersion, and formation of precipitate in a 3D porous media flow cell. Two parallel fluids were flowed concentrically through packed glass beads under two relative flow rates with Na2CO3 and CaCl2 in the inner and outer fluids, respectively. CaCO3 became supersaturated and formed a precipitate at the mixing interface between the two solutions. Spatial maps of changing local velocity fields and dispersion in the flow cell were generated from MRI, while high resolution μ-CT imaging visualized the precipitate formed in the porous media. Formation of a precipitate minimized dispersive and advective transport between the two fluids and the shape of the precipitation front was influenced by the relative flow rates. This work demonstrates that the combined use of MRI and μ-CT can be highly complementary in the study of reactive transport processes in porous media.
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Affiliation(s)
- Joshua M Bray
- Chemical and Biological Engineering, Montana State University , 306 Cobleigh Hall, Bozeman, Montana 59717-3920, United States
- Center for Biofilm Engineering, Montana State University , Bozeman, Montana 59717, United States
- Mechanical and Industrial Engineering, Montana State University , Bozeman, Montana 59717-3800, United States
| | - Ellen G Lauchnor
- Chemical and Biological Engineering, Montana State University , 306 Cobleigh Hall, Bozeman, Montana 59717-3920, United States
- Center for Biofilm Engineering, Montana State University , Bozeman, Montana 59717, United States
| | - George D Redden
- Chemical and Biological Engineering, Montana State University , 306 Cobleigh Hall, Bozeman, Montana 59717-3920, United States
| | - Robin Gerlach
- Chemical and Biological Engineering, Montana State University , 306 Cobleigh Hall, Bozeman, Montana 59717-3920, United States
- Center for Biofilm Engineering, Montana State University , Bozeman, Montana 59717, United States
| | - Yoshiko Fujita
- Idaho National Laboratory, Idaho Falls, Idaho 83402, United States
| | - Sarah L Codd
- Center for Biofilm Engineering, Montana State University , Bozeman, Montana 59717, United States
- Mechanical and Industrial Engineering, Montana State University , Bozeman, Montana 59717-3800, United States
| | - Joseph D Seymour
- Chemical and Biological Engineering, Montana State University , 306 Cobleigh Hall, Bozeman, Montana 59717-3920, United States
- Center for Biofilm Engineering, Montana State University , Bozeman, Montana 59717, United States
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Microbially Induced Calcite Precipitation Employing Environmental Isolates. MATERIALS 2016; 9:ma9060468. [PMID: 28773600 PMCID: PMC5456838 DOI: 10.3390/ma9060468] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 05/19/2016] [Accepted: 06/08/2016] [Indexed: 11/18/2022]
Abstract
In this study, five microbes were employed to precipitate calcite in cohesionless soils. Four microbes were selected from calcite-precipitating microbes isolated from calcareous sand and limestone cave soils, with Sporosarcina pasteurii ATCC 11859 (standard strain) used as a control. Urease activities of the four microbes were higher than that of S. pasteurii. The microbes and urea–CaCl2 medium were injected at least four times into cohesionless soils of two different relative densities (60% and 80%), and the amount of calcite precipitation was measured. It was found that the relative density of cohesionless soils significantly affects the amount of calcite precipitation and that there is a weak correlation between urease activity and calcite precipitation.
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Ureolytic Biomineralization Reduces Proteus mirabilis Biofilm Susceptibility to Ciprofloxacin. Antimicrob Agents Chemother 2016; 60:2993-3000. [PMID: 26953206 DOI: 10.1128/aac.00203-16] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Accepted: 02/27/2016] [Indexed: 12/23/2022] Open
Abstract
Ureolytic biomineralization induced by urease-producing bacteria, particularly Proteus mirabilis, is responsible for the formation of urinary tract calculi and the encrustation of indwelling urinary catheters. Such microbial biofilms are challenging to eradicate and contribute to the persistence of catheter-associated urinary tract infections, but the mechanisms responsible for this recalcitrance remain obscure. In this study, we characterized the susceptibility of wild-type (ure+) and urease-negative (ure-) P. mirabilis biofilms to killing by ciprofloxacin. Ure+ biofilms produced fine biomineral precipitates that were homogeneously distributed within the biofilm biomass in artificial urine, while ure- biofilms did not produce biomineral deposits under identical growth conditions. Following exposure to ciprofloxacin, ure+ biofilms showed greater survival (less killing) than ure- biofilms, indicating that biomineralization protected biofilm-resident cells against the antimicrobial. To evaluate the mechanism responsible for this recalcitrance, we observed and quantified the transport of Cy5-conjugated ciprofloxacin into the biofilm by video confocal microscopy. These observations revealed that the reduced susceptibility of ure+ biofilms resulted from hindered delivery of ciprofloxacin into biomineralized regions of the biofilm. Further, biomineralization enhanced retention of viable cells on the surface following antimicrobial exposure. These findings together show that ureolytic biomineralization induced by P. mirabilis metabolism strongly regulates antimicrobial susceptibility by reducing internal solute transport and increasing biofilm stability.
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Phillips AJ, Cunningham AB, Gerlach R, Hiebert R, Hwang C, Lomans BP, Westrich J, Mantilla C, Kirksey J, Esposito R, Spangler L. Fracture Sealing with Microbially-Induced Calcium Carbonate Precipitation: A Field Study. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:4111-4117. [PMID: 26911511 DOI: 10.1021/acs.est.5b05559] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A primary environmental risk from unconventional oil and gas development or carbon sequestration is subsurface fluid leakage in the near wellbore environment. A potential solution to remediate leakage pathways is to promote microbially induced calcium carbonate precipitation (MICP) to plug fractures and reduce permeability in porous materials. The advantage of microbially induced calcium carbonate precipitation (MICP) over cement-based sealants is that the solutions used to promote MICP are aqueous. MICP solutions have low viscosities compared to cement, facilitating fluid transport into the formation. In this study, MICP was promoted in a fractured sandstone layer within the Fayette Sandstone Formation 340.8 m below ground surface using conventional oil field subsurface fluid delivery technologies (packer and bailer). After 24 urea/calcium solution and 6 microbial (Sporosarcina pasteurii) suspension injections, the injectivity was decreased (flow rate decreased from 1.9 to 0.47 L/min) and a reduction in the in-well pressure falloff (>30% before and 7% after treatment) was observed. In addition, during refracturing an increase in the fracture extension pressure was measured as compared to before MICP treatment. This study suggests MICP is a promising tool for sealing subsurface fractures in the near wellbore environment.
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Affiliation(s)
- Adrienne J Phillips
- Center for Biofilm Engineering, Montana State University , RM 366 EPS Building, Bozeman, Montana 59717, United States
| | - Alfred B Cunningham
- Center for Biofilm Engineering, Montana State University , RM 366 EPS Building, Bozeman, Montana 59717, United States
| | - Robin Gerlach
- Center for Biofilm Engineering, Montana State University , RM 366 EPS Building, Bozeman, Montana 59717, United States
| | - Randy Hiebert
- Montana Emergent Technologies , 160 W. Granite Street, Butte, Montana 59701, United States
| | - Chiachi Hwang
- Center for Biofilm Engineering, Montana State University , RM 366 EPS Building, Bozeman, Montana 59717, United States
| | - Bartholomeus P Lomans
- Shell Global Solution International B.V. , Kessler Park 1, 2288 GS Rijswijk, The Netherlands
| | - Joseph Westrich
- Shell International Exploration and Production Inc. 3333 Highway 6 South, Houston, Texas 77025, United States
| | - Cesar Mantilla
- Shell International Exploration and Production Inc. 3333 Highway 6 South, Houston, Texas 77025, United States
| | - Jim Kirksey
- Loudon Technical Services LLC , 1611 Loudon Heights Road, Charleston, West Virginia 25314, United States
| | - Richard Esposito
- Southern Company , P.O. Box 2641, BIN 14N-8195, Birmingham, Alabama 35291-8195, United States
| | - Lee Spangler
- Energy Research Institute, Montana State University , P.O. Box 172465, Bozeman, Montana 59717, United States
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Handley-Sidhu S, Mullan TK, Grail Q, Albadarneh M, Ohnuki T, Macaskie LE. Influence of pH, competing ions, and salinity on the sorption of strontium and cobalt onto biogenic hydroxyapatite. Sci Rep 2016; 6:23361. [PMID: 26988070 PMCID: PMC4796913 DOI: 10.1038/srep23361] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 03/02/2016] [Indexed: 12/04/2022] Open
Abstract
Anthropogenic radionuclides contaminate a range of environments as a result of nuclear activities, for example, leakage from waste storage tanks/ponds (e.g. Hanford, USA or Sellafield sites, UK) or as a result of large scale nuclear accidents (e.g. Chernobyl, Ukraine or Fukushima, Japan). One of the most widely applied remediation techniques for contaminated waters is the use of sorbent materials (e.g. zeolites and apatites). However, a key problem at nuclear contaminated sites is the remediation of radionuclides from complex chemical environments. In this study, biogenic hydroxyapatite (BHAP) produced by Serratia sp. bacteria was investigated for its potential to remediate surrogate radionuclides (Sr2+ and Co2+) from environmentally relevant waters by varying pH, salinity and the type and concentration of cations present. The sorption capacity of the BHAP for both Sr2+ and Co2+ was higher than for a synthetically produced hydroxyapatite (HAP) in the solutions tested. BHAP also compared favorably against a natural zeolite (as used in industrial decontamination) for Sr2+ and Co2+ uptake from saline waters. Results confirm that hydroxyapatite minerals of high surface area and amorphous calcium phosphate content, typical for biogenic sources, are suitable restoration or reactive barrier materials for the remediation of complex contaminated environments or wastewaters.
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Affiliation(s)
- Stephanie Handley-Sidhu
- Schools of Geography, Earth and Environmental Sciences, The University of Birmingham, Edgbaston, Birmingham, B15 2TT, U.K
| | - Thomas K Mullan
- Civil and Environmental Engineering, University of Strathclyde, Glasgow, G1 1XQ, U.K
| | - Quentin Grail
- Schools of Geography, Earth and Environmental Sciences, The University of Birmingham, Edgbaston, Birmingham, B15 2TT, U.K
| | - Malek Albadarneh
- Schools of Geography, Earth and Environmental Sciences, The University of Birmingham, Edgbaston, Birmingham, B15 2TT, U.K
| | - Toshihiko Ohnuki
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibraki, Japan
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Introduction of Microbial Biopolymers in Soil Treatment for Future Environmentally-Friendly and Sustainable Geotechnical Engineering. SUSTAINABILITY 2016. [DOI: 10.3390/su8030251] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Suzuki Y, Mukai H, Ishimura T, Yokoyama TD, Sakata S, Hirata T, Iwatsuki T, Mizuno T. Formation and Geological Sequestration of Uranium Nanoparticles in Deep Granitic Aquifer. Sci Rep 2016; 6:22701. [PMID: 26948389 PMCID: PMC4780221 DOI: 10.1038/srep22701] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 02/22/2016] [Indexed: 11/09/2022] Open
Abstract
The stimulation of bacterial activities that convert hexavalent uranium, U(VI), to tetravalent uranium, U(IV), appears to be feasible for cost-effective remediation of contaminated aquifers. However, U(VI) reduction typically results in the precipitation of U(IV) particles less than 5 nanometers in diameter, except for environmental conditions enriched with iron. Because these tiny particles are mobile and susceptible to oxidative dissolution after the termination of nutrient injection, in situ bioremediation remains to be impractical. Here we show that U(IV) nanoparticles of coffinite (U(SiO4)1-x(OH)4x) formed in fracture-filling calcium carbonate in a granitic aquifer. In situ U-Pb isotope dating demonstrates that U(IV) nanoparticles have been sequestered in the calcium carbonate for at least 1 million years. As the microbiologically induced precipitation of calcium carbonate in aquifer systems worldwide is extremely common, we anticipate simultaneous stimulation of microbial activities for precipitation reactions of calcium carbonate and U(IV) nanoparticles, which leads to long-term sequestration of uranium and other radionuclides in contaminated aquifers and deep geological repositories.
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Affiliation(s)
- Yohey Suzuki
- Graduate School of Science, The University of Tokyo, 7-3-1 Hongo Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiroki Mukai
- Graduate School of Science, The University of Tokyo, 7-3-1 Hongo Bunkyo-ku, Tokyo 113-0033, Japan
| | - Toyoho Ishimura
- National Institute of Technology, Ibaraki College, 866 Nakane, Hitachinaka-shi, Ibaraki 312-8508, Japan
| | - Takaomi D Yokoyama
- Graduate School of Science, The University of Tokyo, 7-3-1 Hongo Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shuhei Sakata
- Division of Earth &Planetary Sciences, Kyoto University, Kitashirakawa Oiwakesho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Takafumi Hirata
- Division of Earth &Planetary Sciences, Kyoto University, Kitashirakawa Oiwakesho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Teruki Iwatsuki
- Japan Atomic Energy Agency (JAEA), 1-64 Yamanouchi, Akeyo-cho, Mizunami, Gifu 509-6132, Japan
| | - Takashi Mizuno
- Japan Atomic Energy Agency (JAEA), 1-64 Yamanouchi, Akeyo-cho, Mizunami, Gifu 509-6132, Japan
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Anbu P, Kang CH, Shin YJ, So JS. Formations of calcium carbonate minerals by bacteria and its multiple applications. SPRINGERPLUS 2016; 5:250. [PMID: 27026942 PMCID: PMC4771655 DOI: 10.1186/s40064-016-1869-2] [Citation(s) in RCA: 198] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 02/16/2016] [Indexed: 11/24/2022]
Abstract
Biomineralization is a naturally occurring process in living organisms. In this review, we discuss microbially induced calcium carbonate precipitation (MICP) in detail. In the MICP process, urease plays a major role in urea hydrolysis by a wide variety of microorganisms capable of producing high levels of urease. We also elaborate on the different polymorphs and the role of calcium in the formation of calcite crystal structures using various calcium sources. Additionally, the environmental factors affecting the production of urease and carbonate precipitation are discussed. This MICP is a promising, eco-friendly alternative approach to conventional and current remediation technologies to solve environmental problems in multidisciplinary fields. Multiple applications of MICP such as removal of heavy metals and radionuclides, improve the quality of construction materials and sequestration of atmospheric CO2 are discussed. In addition, we discuss other applications such as removal of calcium ions, PCBs and use of filler in rubber and plastics and fluorescent particles in stationary ink and stationary markers. MICP technology has become an efficient aspect of multidisciplinary fields. This report not only highlights the major strengths of MICP, but also discusses the limitations to application of this technology on a commercial scale.
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Affiliation(s)
- Periasamy Anbu
- Department of Biological Engineering, Inha University, Incheon, 402-751 Republic of Korea
| | - Chang-Ho Kang
- Department of Biological Engineering, Inha University, Incheon, 402-751 Republic of Korea
| | - Yu-Jin Shin
- Department of Biological Engineering, Inha University, Incheon, 402-751 Republic of Korea
| | - Jae-Seong So
- Department of Biological Engineering, Inha University, Incheon, 402-751 Republic of Korea
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Kumari D, Qian XY, Pan X, Achal V, Li Q, Gadd GM. Microbially-induced Carbonate Precipitation for Immobilization of Toxic Metals. ADVANCES IN APPLIED MICROBIOLOGY 2016; 94:79-108. [PMID: 26917242 DOI: 10.1016/bs.aambs.2015.12.002] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Rapid urbanization and industrialization resulting from growing populations contribute to environmental pollution by toxic metals and radionuclides which pose a threat to the environment and to human health. To combat this threat, it is important to develop remediation technologies based on natural processes that are sustainable. In recent years, a biomineralization process involving ureolytic microorganisms that leads to calcium carbonate precipitation has been found to be effective in immobilizing toxic metal pollutants. The advantage of using ureolytic organisms for bioremediating metal pollution in soil is their ability to immobilize toxic metals efficiently by precipitation or coprecipitation, independent of metal valence state and toxicity and the redox potential. This review summarizes current understanding of the ability of ureolytic microorganisms for carbonate biomineralization and applications of this process for toxic metal bioremediation. Microbial metal carbonate precipitation may also be relevant to detoxification of contaminated process streams and effluents as well as the production of novel carbonate biominerals and biorecovery of metals and radionuclides that form insoluble carbonates.
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Affiliation(s)
- Deepika Kumari
- Xinjiang Key Laboratory of Environmental Pollution and Bioremediation, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
| | - Xin-Yi Qian
- Xinjiang Key Laboratory of Environmental Pollution and Bioremediation, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
| | - Xiangliang Pan
- Xinjiang Key Laboratory of Environmental Pollution and Bioremediation, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
| | - Varenyam Achal
- School of Ecological and Environmental Sciences, East China Normal University, Shanghai, China
| | - Qianwei Li
- Geomicrobiology Group, School of Life Sciences, University of Dundee, Dundee, Scotland, UK
| | - Geoffrey Michael Gadd
- Xinjiang Key Laboratory of Environmental Pollution and Bioremediation, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China; Geomicrobiology Group, School of Life Sciences, University of Dundee, Dundee, Scotland, UK
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Zhu T, Dittrich M. Carbonate Precipitation through Microbial Activities in Natural Environment, and Their Potential in Biotechnology: A Review. Front Bioeng Biotechnol 2016; 4:4. [PMID: 26835451 PMCID: PMC4718973 DOI: 10.3389/fbioe.2016.00004] [Citation(s) in RCA: 181] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 01/07/2016] [Indexed: 11/24/2022] Open
Abstract
Calcium carbonate represents a large portion of carbon reservoir and is used commercially for a variety of applications. Microbial carbonate precipitation, a by-product of microbial activities, plays an important metal coprecipitation and cementation role in natural systems. This natural process occurring in various geological settings can be mimicked and used for a number of biotechnologies, such as metal remediation, carbon sequestration, enhanced oil recovery, and construction restoration. In this study, different metabolic activities leading to calcium carbonate precipitation, their native environment, and potential applications and challenges are reviewed.
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Affiliation(s)
- Tingting Zhu
- Department of Physical and Environmental Sciences, University of Toronto Scarborough , Toronto, ON , Canada
| | - Maria Dittrich
- Department of Physical and Environmental Sciences, University of Toronto Scarborough , Toronto, ON , Canada
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Gat D, Ronen Z, Tsesarsky M. Soil Bacteria Population Dynamics Following Stimulation for Ureolytic Microbial-Induced CaCO3 Precipitation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:616-624. [PMID: 26689904 DOI: 10.1021/acs.est.5b04033] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Microbial-induced CaCO3 precipitation (MICP) via urea-hydrolysis (ureolysis) is an emerging soil improvement technique for various civil engineering and environmental applications. In-situ application of MICP in soils is performed either by augmenting the site with ureolytic bacteria or by stimulating indigenous ureolytic bacteria. Both of these approaches may lead to changes in the indigenous bacterial population composition and to the accumulation of large quantities of ammonium. In this batch study, effective ureolysis was stimulated in coastal sand from a semiarid environment, with low initial ureolytic bacteria abundance. Two different carbon sources were used: yeast-extract and molasses. No ureolysis was observed in their absence. Ureolysis was achieved using both carbon sources, with a higher rate in the yeast-extract enrichment resulting from increased bacterial growth. The changes to the indigenous bacterial population following biostimulation of ureolysis were significant: Bacilli class abundancy increased from 5% in the native sand up to 99% in the yeast-extract treatment. The sand was also enriched with ammonium-chloride, where ammonia-oxidation was observed after 27 days, but was not reflected in the bacterial population composition. These results suggest that biostimulation of ureolytic bacteria can be applied even in a semiarid and nutrient-poor environment using a simple carbon source, that is, molasses. The significant changes to bacterial population composition following ureolysis stimulation could result in a decrease in trophic activity and diversity in the treated site, thus they require further attention.
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Affiliation(s)
- Daniella Gat
- The Department of Geological and Environmental Sciences, Ben-Gurion University of the Negev , Beer-Sheva 8410501, Israel
| | - Zeev Ronen
- The Department of Environmental Hydrology and Microbiology, The Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev , Sede-Boqer Campus 8499000, Israel
| | - Michael Tsesarsky
- The Department of Geological and Environmental Sciences, Ben-Gurion University of the Negev , Beer-Sheva 8410501, Israel
- The Department of Structural Engineering, Ben-Gurion University of the Negev , Beer-Sheva 8410501, Israel
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Kang CH, Shin Y, Anbu P, Nam IH, So JS. Biosequestration of copper by bacteria isolated from an abandoned mine by using microbially induced calcite precipitation. J GEN APPL MICROBIOL 2016; 62:206-12. [DOI: 10.2323/jgam.2016.03.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Chang-Ho Kang
- Department of Biological Engineering, Inha University
| | - YuJin Shin
- Department of Biological Engineering, Inha University
| | | | - In-Hyun Nam
- Geologic Environment Division, Korea Institute of Geoscience and Mineral Resources
| | - Jae-Seong So
- Department of Biological Engineering, Inha University
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Beltrán Y, Cerqueda-García D, Taş N, Thomé PE, Iglesias-Prieto R, Falcón LI. Microbial composition of biofilms associated with lithifying rubble of Acropora palmata branches. FEMS Microbiol Ecol 2015; 92:fiv162. [PMID: 26705570 DOI: 10.1093/femsec/fiv162] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/14/2015] [Indexed: 11/13/2022] Open
Abstract
Coral reefs are among the most productive ecosystems on the planet, but are rapidly declining due to global-warming-mediated changes in the oceans. Particularly for the Caribbean region, Acropora sp. stony corals have lost ∼80% of their original coverage, resulting in vast extensions of dead coral rubble. We analyzed the microbial composition of biofilms that colonize and lithify dead Acropora palmata rubble in the Mexican Caribbean and identified the microbial assemblages that can persist under scenarios of global change, including high temperature and low pH. Lithifying biofilms have a mineral composition that includes aragonite and magnesium calcite (16 mole% MgCO(3)) and calcite, while the mineral phase corresponding to coral skeleton is basically aragonite. Microbial composition of the lithifying biofilms are different in comparison to surrounding biotopes, including a microbial mat, water column, sediments and live A. palmata microbiome. Significant shifts in biofilm composition were detected in samples incubated in mesocosms. The combined effect of low pH and increased temperature showed a strong effect after two-week incubations for biofilm composition. Findings suggest that lithifying biofilms could remain as a secondary structure on reef rubble possibly impacting the functional role of coral reefs.
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Affiliation(s)
- Yislem Beltrán
- Laboratorio de Ecología Bacteriana, Instituto de Ecología, UNAM, D.F., México 04510, Mexico
| | - Daniel Cerqueda-García
- Laboratorio de Ecología Bacteriana, Instituto de Ecología, UNAM, D.F., México 04510, Mexico
| | - Neslihan Taş
- Lawrence Berkeley National Laboratory, Ecology Department, Earth & Environmental Sciences, Berkeley, CA 94720, USA
| | - Patricia E Thomé
- Unidad Académica de Sistemas Arrecifales, Puerto Morelos, Instituto de Ciencias del Mar y Limnología, UNAM. Ado. Post. 1152, Cancun, QR, México 77500, Mexico
| | - Roberto Iglesias-Prieto
- Unidad Académica de Sistemas Arrecifales, Puerto Morelos, Instituto de Ciencias del Mar y Limnología, UNAM. Ado. Post. 1152, Cancun, QR, México 77500, Mexico
| | - Luisa I Falcón
- Laboratorio de Ecología Bacteriana, Instituto de Ecología, UNAM, D.F., México 04510, Mexico
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Experimental and Numerical Analysis of Parallel Reactant Flow and Transverse Mixing with Mineral Precipitation in Homogeneous and Heterogeneous Porous Media. Transp Porous Media 2015. [DOI: 10.1007/s11242-015-0614-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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50
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Tang WT, Dai J, Liu R, Chen GH. Microbial ureolysis in the seawater-catalysed urine phosphorus recovery system: Kinetic study and reactor verification. WATER RESEARCH 2015; 87:10-19. [PMID: 26378727 DOI: 10.1016/j.watres.2015.09.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 09/02/2015] [Accepted: 09/03/2015] [Indexed: 06/05/2023]
Abstract
Our previous study has confirmed the feasibility of using seawater as an economical precipitant for urine phosphorus (P) precipitation. However, we still understand very little about the ureolysis in the Seawater-based Urine Phosphorus Recovery (SUPR) system despite its being a crucial step for urine P recovery. In this study, batch experiments were conducted to investigate the kinetics of microbial ureolysis in the seawater-urine system. Indigenous bacteria from urine and seawater exhibited relatively low ureolytic activity, but they adapted quickly to the urine-seawater mixture during batch cultivation. During cultivation, both the abundance and specific ureolysis rate of the indigenous bacteria were greatly enhanced as confirmed by a biomass-dependent Michaelis-Menten model. The period for fully ureolysis was decreased from 180 h to 2.5 h after four cycles of cultivation. Based on the successful cultivation, a lab-scale SUPR reactor was set up to verify the fast ureolysis and efficient P recovery in the SUPR system. Nearly complete urine P removal was achieved in the reactor in 6 h without adding any chemicals. Terminal Restriction Fragment Length Polymorphism (TRFLP) analysis revealed that the predominant groups of bacteria in the SUPR reactor likely originated from seawater rather than urine. Moreover, batch tests confirmed the high ureolysis rates and high phosphorus removal efficiency induced by cultivated bacteria in the SUPR reactor under seawater-to-urine mixing ratios ranging from 1:1 to 9:1. This study has proved that the enrichment of indigenous bacteria in the SUPR system can lead to sufficient ureolytic activity for phosphate precipitation, thus providing an efficient and economical method for urine P recovery.
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Affiliation(s)
- Wen-Tao Tang
- Department of Civil and Environmental Engineering, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Ji Dai
- Department of Civil and Environmental Engineering, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China.
| | - Rulong Liu
- Department of Civil and Environmental Engineering, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China.
| | - Guang-Hao Chen
- Department of Civil and Environmental Engineering, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China
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