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Li D, Chen S, Gao X. Numerical analysis of MICP treated sand based on bio-chemo-hydro model. Front Bioeng Biotechnol 2024; 12:1380213. [PMID: 38585712 PMCID: PMC10995356 DOI: 10.3389/fbioe.2024.1380213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 03/11/2024] [Indexed: 04/09/2024] Open
Abstract
Microbially Induced Calcite Precipitation (MICP) represents an environmentally friendly and innovative soil grouting technology. Involving intricate biochemical processes, it poses challenges for a thorough investigation of factors influencing microbial grouting effectiveness through experimentation alone. Consequently, A three-dimensional numerical model was developed to predict the permeability of bio-grouting in porous media. The numerical model is validated by comparing its results with test results available in the literature. The validated model is then used to investigate the effects of variation bacterial solution concentration, cementation solution concentration, grouting rate and grouting time on grouting effectiveness. It was founded that the remediation effect was positively correlated with the bacterial solution concentration and the number of grouting. An increased grouting rate enhanced the transport efficiency of reactants. Additionally, the concentration of cementation solution exhibited no significant effect on the reduction of calcium carbonate yield and permeability.
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Affiliation(s)
| | | | - Xing Gao
- Yantai Yuhuangding Hospital, Yantai, China
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2
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Liu Y, Ali A, Su JF, Li K, Hu RZ, Wang Z. Microbial-induced calcium carbonate precipitation: Influencing factors, nucleation pathways, and application in waste water remediation. Sci Total Environ 2023; 860:160439. [PMID: 36574549 DOI: 10.1016/j.scitotenv.2022.160439] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 11/19/2022] [Accepted: 11/19/2022] [Indexed: 06/17/2023]
Abstract
Microbial-induced calcium carbonate precipitation (MICP) is a technique that uses the metabolic action of microorganisms to produce CO32- which combines with free Ca2+ to form CaCO3 precipitation. It has gained widespread attention in water treatment, aimed with the advantages of simultaneous removal of multiple pollutants, environmental protection, and ecological sustainability. This article reviewed the mechanism of MICP at both intra- and extra-cellular levels. It summarized the parameters affecting the MICP process in terms of bacterial concentration, ambient temperature, etc. The current status of MICP application in practical engineering is discussed. Based on this, the current technical difficulties faced in the use of MICP technology were outlined, and future research directions for MICP technology were highlighted. This review helps to improve the design of existing water treatment facilities for the simultaneous removal of multiple pollutants using the MICP and provides theoretical reference and innovative thinking for related research.
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Affiliation(s)
- Yu Liu
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Amjad Ali
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Jun-Feng Su
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Kai Li
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Rui-Zhu Hu
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Zhao Wang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
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3
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Zhang K, Tang CS, Jiang NJ, Pan XH, Liu B, Wang YJ, Shi B. Microbial‑induced carbonate precipitation (MICP) technology: a review on the fundamentals and engineering applications. Environ Earth Sci 2023; 82:229. [PMID: 37128499 PMCID: PMC10131530 DOI: 10.1007/s12665-023-10899-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 04/08/2023] [Indexed: 05/03/2023]
Abstract
The microbial‑induced carbonate precipitation (MICP), as an emerging biomineralization technology mediated by specific bacteria, has been a popular research focus for scientists and engineers through the previous two decades as an interdisciplinary approach. It provides cutting-edge solutions for various engineering problems emerging in the context of frequent and intense human activities. This paper is aimed at reviewing the fundaments and engineering applications of the MICP technology through existing studies, covering realistic need in geotechnical engineering, construction materials, hydraulic engineering, geological engineering, and environmental engineering. It adds a new perspective on the feasibility and difficulty for field practice. Analysis and discussion within different parts are generally carried out based on specific considerations in each field. MICP may bring comprehensive improvement of static and dynamic characteristics of geomaterials, thus enhancing their bearing capacity and resisting liquefication. It helps produce eco-friendly and durable building materials. MICP is a promising and cost-efficient technology in preserving water resources and subsurface fluid leakage. Piping, internal erosion and surface erosion could also be addressed by this technology. MICP has been proved suitable for stabilizing soils and shows promise in dealing with problematic soils like bentonite and expansive soils. It is also envisaged that this technology may be used to mitigate against impacts of geological hazards such as liquefaction associated with earthquakes. Moreover, global environment issues including fugitive dust, contaminated soil and climate change problems are assumed to be palliated or even removed via the positive effects of this technology. Bioaugmentation, biostimulation, and enzymatic approach are three feasible paths for MICP. Decision makers should choose a compatible, efficient and economical way among them and develop an on-site solution based on engineering conditions. To further decrease the cost and energy consumption of the MICP technology, it is reasonable to make full use of industrial by-products or wastes and non-sterilized media. The prospective direction of this technology is to make construction more intelligent without human intervention, such as autogenous healing. To reach this destination, MICP could be coupled with other techniques like encapsulation and ductile fibers. MICP is undoubtfully a mainstream engineering technology for the future, while ecological balance, environmental impact and industrial applicability should still be cautiously treated in its real practice.
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Affiliation(s)
- Kuan Zhang
- School of Earth Sciences and Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023 China
| | - Chao-Sheng Tang
- School of Earth Sciences and Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023 China
| | - Ning-Jun Jiang
- Institute of Geotechnical Engineering, Southeast University, Nanjing, 211189 China
| | - Xiao-Hua Pan
- School of Earth Sciences and Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023 China
| | - Bo Liu
- School of Earth Sciences and Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023 China
| | - Yi-Jie Wang
- Department of Civil and Environmental Engineering, University of Hawaii, Manoa, Honolulu, HI 96822 USA
| | - Bin Shi
- School of Earth Sciences and Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023 China
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4
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Shen G, Liu S, He Y, Pan M, Yu J, Cai Y. Reinforcement of Calcareous Sands by Stimulation of Native Microorganisms Induced Mineralization. Materials (Basel) 2022; 16:251. [PMID: 36614589 PMCID: PMC9822414 DOI: 10.3390/ma16010251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/08/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
Calcareous sand is a special soil formed by the accumulation of carbonate fragments. Its compressibility is caused by a high void ratio and breakable particles. Because of its high carbonate content and weak cementation, its load-bearing capacity is limited. In this study, the optimal stimulation solution was obtained with response surface methodology. Then, the effect of reinforcing calcareous sand was analysed with unconfined compressive strength (UCS) tests, calcium carbonate content tests, microscopy and microbial community analyses. The components and concentrations of the optimal stimulation solution were as follows: sodium acetate (38.00 mM), ammonium chloride (124.24 mM), yeast extract (0.46 g/L), urea (333 mM), and nickel chloride (0.01 mM), and the pH was 8.75. After the calcareous sand was treated with the optimal stimulation scheme, the urease activity was 6.1891 mM urea/min, the calcium carbonate production was 8.40%, and the UCS was 770 kPa, which constituted increases of 71.41%, 35.40%, and 83.33%, respectively, compared with the initial scheme. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) analyses showed that calcium carbonate crystals were formed between the particles of the calcareous sand after the reaction, and the calcium carbonate crystals were mainly calcite. Urease-producing microorganisms became the dominant species in calcareous sand after treatment. This study showed that biostimulation-induced mineralization is feasible for reinforcing calcareous sand.
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Affiliation(s)
- Gangqiang Shen
- Fujian Research Center for Tunneling and Urban Underground Space Engineering, Huaqiao University, Xiamen 361021, China
| | - Shiyu Liu
- Fujian Research Center for Tunneling and Urban Underground Space Engineering, Huaqiao University, Xiamen 361021, China
| | - Yuhan He
- Fujian Research Center for Tunneling and Urban Underground Space Engineering, Huaqiao University, Xiamen 361021, China
| | - Muzhi Pan
- Fujian Water Conservancy and Hydropower Engineering Bureau Company Limited, Quanzhou 362000, China
| | - Jin Yu
- Fujian Research Center for Tunneling and Urban Underground Space Engineering, Huaqiao University, Xiamen 361021, China
| | - Yanyan Cai
- Fujian Research Center for Tunneling and Urban Underground Space Engineering, Huaqiao University, Xiamen 361021, China
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5
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Song M, Ju T, Meng Y, Han S, Lin L, Jiang J. A review on the applications of microbially induced calcium carbonate precipitation in solid waste treatment and soil remediation. Chemosphere 2022; 290:133229. [PMID: 34896177 DOI: 10.1016/j.chemosphere.2021.133229] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 11/08/2021] [Accepted: 12/06/2021] [Indexed: 06/14/2023]
Abstract
Improper disposal and accumulation of solid waste can cause a number of environmental problems, such as the heavy metal contamination of soil. Microbially induced calcium carbonate precipitation (MICP) is considered as a promising technology to solve many environmental problems. Calcium-based solid waste can be utilized as an alternative source of calcium for the MICP process, and carbonate-based biominerals can be used for soil remediation, solid waste treatment, remediation of construction concrete, and generation of bioconcrete. This paper describes the metabolic pathways and mechanisms of microbially induced calcium carbonate precipitation and highlights the value of MICP for solid waste treatment and soil remediation applications. The factors affecting the effectiveness of MICP are discussed and analyzed through an overview of recent studies on the application of MICP in environmental engineering. The paper also summarizes the current challenges for the large-scale application of this innovative technology. In prospective study, MICP can be an effective alternative to conventional technologies in solid waste treatment, soil remediation and CO2 sequestration, as it can reduce negative environmental impacts and provide long-term economic benefits.
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Affiliation(s)
- Mengzhu Song
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Tongyao Ju
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Yuan Meng
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Siyu Han
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Li Lin
- School of Environment, Tsinghua University, Beijing, 100084, China
| | - Jianguo Jiang
- School of Environment, Tsinghua University, Beijing, 100084, China.
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Wei T, Yashir N, An F, Imtiaz SA, Li X, Li H. Study on the performance of carbonate-mineralized bacteria combined with eggshell for immobilizing Pb and Cd in water and soil. Environ Sci Pollut Res Int 2022; 29:2924-2935. [PMID: 34382171 DOI: 10.1007/s11356-021-15138-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
Microbially induced carbonate precipitation (MICP) is an advanced bioremediation approach to remediate heavy metal (HM)-contaminated water and soil. In this study, metal-tolerant urease-producing bacterial isolates, namely, UR1, UR16, UR20, and UR21, were selected based on their urease activity. The efficiency of these isolates in water for Pb and Cd immobilizations was explored. Our results revealed that UR21 had the highest removal rates of Pb (81.9%) and Cd (65.0%) in solution within 72 h through MICP. The scanning electron microscopy-energy-dispersive x-ray and x-ray diffraction analysis confirmed the structure and the existence of PbCO3 and CdCO3 crystals in the precipitates. In addition, the strain UR21, in combination with urea/eggshell waste (EGS) or both, was further employed to investigate the effect of MICP on soil enzymatic activity, chemical fractions, and bioavailability of Pb and Cd. The outcomes indicated that the applied treatments reduced the proportion of soluble-exchangeable-Pb and -Cd, which resulted in an increment in carbonate-bound Pb and Cd in the soil. The DTPA-extractable Pb and Cd were reduced by 29.2% and 25.2% with the treatment of UR21+urea+EGS as compared to the control. Besides, the application of UR21 and EGS significantly increased the soil pH, cation exchange capacity, and enzyme activities. Our findings may provide a novel perceptive for an eco-friendly and sustainable approach to remediate heavy metal-contaminated environment through a combination of metal-resistant ureolytic bacterial strain and EGS.
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Affiliation(s)
- Ting Wei
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, People's Republic of China.
| | - Noman Yashir
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, People's Republic of China
| | - Fengqiu An
- College of Environmental and Chemical Engineering, Polytechnic University, Xi'an, 710048, China
| | - Syed Asad Imtiaz
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, People's Republic of China
| | - Xian Li
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, People's Republic of China
| | - Hong Li
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, People's Republic of China
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Chuo SC, Mohamed SF, Mohd Setapar SH, Ahmad A, Jawaid M, Wani WA, Yaqoob AA, Mohamad Ibrahim MN. Insights into the Current Trends in the Utilization of Bacteria for Microbially Induced Calcium Carbonate Precipitation. Materials (Basel) 2020; 13:ma13214993. [PMID: 33167607 PMCID: PMC7664203 DOI: 10.3390/ma13214993] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/10/2020] [Accepted: 10/14/2020] [Indexed: 01/08/2023]
Abstract
Nowadays, microbially induced calcium carbonate precipitation (MICP) has received great attention for its potential in construction and geotechnical applications. This technique has been used in biocementation of sand, consolidation of soil, production of self-healing concrete or mortar, and removal of heavy metal ions from water. The products of MICP often have enhanced strength, durability, and self-healing ability. Utilization of the MICP technique can also increase sustainability, especially in the construction industry where a huge portion of the materials used is not sustainable. The presence of bacteria is essential for MICP to occur. Bacteria promote the conversion of suitable compounds into carbonate ions, change the microenvironment to favor precipitation of calcium carbonate, and act as precipitation sites for calcium carbonate crystals. Many bacteria have been discovered and tested for MICP potential. This paper reviews the bacteria used for MICP in some of the most recent studies. Bacteria that can cause MICP include ureolytic bacteria, non-ureolytic bacteria, cyanobacteria, nitrate reducing bacteria, and sulfate reducing bacteria. The most studied bacterium for MICP over the years is Sporosarcina pasteurii. Other bacteria from Bacillus species are also frequently investigated. Several factors that affect MICP performance are bacterial strain, bacterial concentration, nutrient concentration, calcium source concentration, addition of other substances, and methods to distribute bacteria. Several suggestions for future studies such as CO2 sequestration through MICP, cost reduction by using plant or animal wastes as media, and genetic modification of bacteria to enhance MICP have been put forward.
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Affiliation(s)
- Sing Chuong Chuo
- Centre of Lipids Engineering and Applied Research, Universiti Teknologi Malaysia, Skudai 81310 UTM, Johor, Malaysia;
- Department of Quantity Surveying, Faculty of Built Environment, Universiti Teknologi Malaysia, Skudai 81310 UTM, Johor, Malaysia
| | - Sarajul Fikri Mohamed
- Department of Quantity Surveying, Faculty of Built Environment, Universiti Teknologi Malaysia, Skudai 81310 UTM, Johor, Malaysia
- Correspondence: (S.F.M.); (S.H.M.S.); (A.A.); (M.J.); Tel.: +60-75535496 (S.H.M.S.); Fax: +60-75581463 (S.H.M.S.)
| | - Siti Hamidah Mohd Setapar
- Centre of Lipids Engineering and Applied Research, Universiti Teknologi Malaysia, Skudai 81310 UTM, Johor, Malaysia;
- Malaysia-Japan International Institute of Technology, Jalan Sultan Yahya Petra, Universiti Teknologi, Malaysia, Kuala Lumpur 54100, Malaysia
- Correspondence: (S.F.M.); (S.H.M.S.); (A.A.); (M.J.); Tel.: +60-75535496 (S.H.M.S.); Fax: +60-75581463 (S.H.M.S.)
| | - Akil Ahmad
- Centre of Lipids Engineering and Applied Research, Universiti Teknologi Malaysia, Skudai 81310 UTM, Johor, Malaysia;
- Malaysia-Japan International Institute of Technology, Jalan Sultan Yahya Petra, Universiti Teknologi, Malaysia, Kuala Lumpur 54100, Malaysia
- Correspondence: (S.F.M.); (S.H.M.S.); (A.A.); (M.J.); Tel.: +60-75535496 (S.H.M.S.); Fax: +60-75581463 (S.H.M.S.)
| | - Mohammad Jawaid
- Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, Serdang 43400 UPM, Selangor, Malaysia
- Correspondence: (S.F.M.); (S.H.M.S.); (A.A.); (M.J.); Tel.: +60-75535496 (S.H.M.S.); Fax: +60-75581463 (S.H.M.S.)
| | - Waseem A. Wani
- Department of Chemistry, Govt. Degree College Tral, Kashmir J&K-192123, India;
| | - Asim Ali Yaqoob
- School of Chemical Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia; (A.A.Y.); (M.N.M.I.)
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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] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/28/2023]
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Mutitu DK, Wachira JM, Mwirichia R, Thiong'o JK, Munyao OM, Muriithi G. Influence of Lysinibacillus sphaericus on compressive strength and water sorptivity in microbial cement mortar. Heliyon 2019; 5:e02881. [PMID: 31844753 PMCID: PMC6895596 DOI: 10.1016/j.heliyon.2019.e02881] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 11/01/2019] [Accepted: 11/15/2019] [Indexed: 11/17/2022] Open
Abstract
Cement structures are subject to degradation either by aggressive media or development of micro/macro cracks which create external substance ingress pathways. Microbiocementation can be employed as a self-intelligent solution to this deterioration process. This paper presents study results on the effects of Lysinibacillus sphaericus microbiocementation on Ordinary Portland cement (OPC), normal consistency, setting time, soundness, compressive strength and water sorptivity. Microbial solutions with a concentration of 1.0 × 107 cells/ml were mixed with OPC to make prisms at a water/cement ratio of 0.5. Mortar prisms of 160 mm × 40 mm x 40mm were used in this study. A maximum compressive strength gain of 17% and 19.8% was observed on the microbial prism at the 28th and 56th day of curing respectively. A minimum of 0.0190 and a maximum of 0.0355 water sorptivity coefficient was observed on the OPC microbial prism and OPC control prism, after 28th day of curing respectively. Scanning electron microscope images taken after the 28th day of curing showed formation of vast calcium silicate hydrates and more calcite deposits on microbial mortars. Statistical findings of this study indicate that Lysinibacillus sphaericus significantly retarded both the setting time and normal consistency, but has no influence on the mortar soundness.
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Affiliation(s)
| | | | - Romano Mwirichia
- Department of Biological Sciences, University of Embu, Embu, Kenya
| | | | | | - Genson Muriithi
- Department of Physical Sciences, University of Embu, Embu, Kenya
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Yu X, Jiang J. Mineralization and cementing properties of bio-carbonate cement, bio-phosphate cement, and bio-carbonate/phosphate cement: a review. Environ Sci Pollut Res Int 2018; 25:21483-21497. [PMID: 29948713 DOI: 10.1007/s11356-018-2143-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 04/25/2018] [Indexed: 06/08/2023]
Abstract
Due to high pollution associated with traditional Portland cement and bio-carbonate cement, a new generation of cementitious material needs to be developed. Bio-barium phosphate, magnesium phosphate, and ferric phosphate are synthesized by bio-mineralization. Firstly, the substrate is hydrolyzed by alkaline phosphatase secreted via phosphate-mineralization microbes, obtaining phosphate ions. Micro- and nano-scale phosphate minerals are prepared by phosphate ions reacting with different types of metal cation. The setting time of bio-BaHPO4 has a greater effect on the strength of sand columns when a mixing precipitation process is innovatively adopted. The strength of the sand columns increases as bio-BaHPO4 content (10~50%) increases. The optimum content of bio-BaHPO4 is 60%. Porosity and permeability of the sand columns decrease as bio-BaHPO4 content (10~60%) increases. Ammonium and ammonia can effectively be synthesized to magnesium ammonium phosphate by adding K2HPO4·3H2O to Sporosarcina pasteurii liquid. Permeability, porosity, and compressive strength of the sand columns are close to CJ1, CJ1.5, and CJ2 cementation. However, the fixation ammonia ratio of CJ2 is bigger than CJ1 and CJ1.5 (The mixture solutions of Sporosarcina pasteurii and K2HPO4·3H2O (1, 1.5, and 2 mol/L) are named as CJ1, CJ1.5, and CJ2) cementation. The results show that the Sporosarcina pasteurii liquid containing K2HPO4·3H2O (2 mol/L) and the mixture solution of MgCl2 and urea (3 mol/L) cemented loose sand particles best. Two types of bio-cement are environmentally friendly and can partially or completely replace bio-carbonate cement.
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Affiliation(s)
- Xiaoniu Yu
- School of Environment, Tsinghua University, Beijing, 100084, China
- College of Architecture and Civil Engineering, Wenzhou University, Wenzhou, 325035, China
| | - Jianguo Jiang
- School of Environment, Tsinghua University, Beijing, 100084, China.
- Key Laboratory for Solid Waste Management and Environment Safety, Ministry of Education of China, Beijing, 100084, China.
- Collaborative Innovation Center for Regional Environmental Quality, Tsinghua University, Beijing, 100084, China.
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Alonso MJC, Ortiz CEL, Perez SOG, Narayanasamy R, Fajardo San Miguel GDJ, Hernández HH, Balagurusamy N. Improved strength and durability of concrete through metabolic activity of ureolytic bacteria. Environ Sci Pollut Res Int 2018; 25:21451-21458. [PMID: 28593545 DOI: 10.1007/s11356-017-9347-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 05/22/2017] [Indexed: 06/07/2023]
Abstract
In recent years, biomineralization process is being employed in development of bioconcrete, which is emerging as a sustainable method to enhance the durability of concrete by way of increasing compressive strength and reducing the chloride permeability. In this study, different bacterial strains isolated from the soils of the Laguna Region of Mexico were selected for further study. ACRN5 strain demonstrated higher urease activity than other strains, and the optimum substrate concentration, pH, and temperature were 120 mM, pH 8, and 25 °C, respectively. Further, Km and Vmax of urease activity of ACRN5 were 21.38 mM and 0.212 mM min-1, respectively. It was observed that addition of ACRN5 at 105 cells ml-1 to cement-water mixture significantly increased (14.94%) in compressive strength after 36 days of curing and reduced chloride penetration. Deposition of calcite in bio-mortars was observed in scanning electron microscopy and energy dispersive X-ray diffraction spectrometry analyses. Results of this study demonstrated the role of microbially induced calcium carbonate precipitation in improving the physico-mechanical properties of bio-mortars.
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Affiliation(s)
- Maria Jose Castro Alonso
- Laboratorio de Biorremediación, Facultad de Ciencias Biológicas, Universidad Autónoma de Coahuila, Carretera Torreón-Matamoros Km 7.5, Torreón, Mexico
| | - Carlos Eloir Lopez Ortiz
- Laboratorio de Biorremediación, Facultad de Ciencias Biológicas, Universidad Autónoma de Coahuila, Carretera Torreón-Matamoros Km 7.5, Torreón, Mexico
| | - Sixto Omar Garcia Perez
- Facultad de Ingeniería, Ciencias y Arquitectura de la Universidad Juárez del Estado de Durango, Gómez Palacio, Mexico
| | - Rajeswari Narayanasamy
- Facultad de Ingeniería, Ciencias y Arquitectura de la Universidad Juárez del Estado de Durango, Gómez Palacio, Mexico
| | - Gerardo Del Jesús Fajardo San Miguel
- Facultad de Ingeniería Civil, Universidad Autónoma de Nuevo León, Av. Universidad S/N, Ciudad Universitaria, CP 66451, San Nicolás de los Garza, Nuevo León, Mexico
| | - Héctor Herrera Hernández
- Centro Universitario, Universidad Autónoma del Estado de México, San Javier Atizapán de Zaragoza, Mexico
| | - Nagamani Balagurusamy
- Laboratorio de Biorremediación, Facultad de Ciencias Biológicas, Universidad Autónoma de Coahuila, Carretera Torreón-Matamoros Km 7.5, Torreón, Mexico.
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Montaño-Salazar SM, Lizarazo-Marriaga J, Brandão PFB. Isolation and Potential Biocementation of Calcite Precipitation Inducing Bacteria from Colombian Buildings. Curr Microbiol 2017; 75:256-265. [PMID: 29043388 DOI: 10.1007/s00284-017-1373-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 10/10/2017] [Indexed: 10/18/2022]
Abstract
Microbiological induced calcium carbonate or calcite precipitation (MICP) has become a highly researched issue due to its multiple applications in the construction industry, being a promising alternative with a great biotechnological importance. In this work, potential calcite precipitation inducing bacteria were isolated from mortar and concrete samples of different buildings at the National University of Colombia. Eighteen crystal-precipitating strains were recovered in Urea-CaCl2 solid medium. The 16S rRNA gene sequencing identified isolates as Arthrobacter, Psychrobacillus and Rhodococcus genera. It is reported, for the first time, the calcite precipitation by P. psycrodurans and R. qingshengii. Optical microscopy and Scanning Electron Microscopy showed crystals with irregular and spherical shapes, and beige and white colours. Furthermore, crystals formation appeared to be strain-specific. X-Ray diffraction analysis confirmed crystals composition as CaCO3. Biocementation tests showed that MICP treatments of mortar cubes using P. psycrodurans caused an increase in their compressive strength compared to control samples. The positive action of a native MICP strain in mortar blocks biomineralization is shown, which is of great interest and potential for the construction industry.
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Affiliation(s)
- Sandra M Montaño-Salazar
- Departamento de Biología, Facultad de Ciencias, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Juan Lizarazo-Marriaga
- Grupo de Investigación en Análisis, Diseño y Materiales - GIES, Facultad de Ingeniería, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Pedro F B Brandão
- Grupo de Estudios para la Remediación y Mitigación de Impactos Negativos al Ambiente (G.E.R.M.I.N.A.), Laboratorio de Microbiología Ambiental y Aplicada, Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia, Bogotá, Colombia.
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