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Chang J, Yang D, Lu C, Shu Z, Deng S, Tan L, Wen S, Huang K, Duan P. Application of microbially induced calcium carbonate precipitation (MICP) process in concrete self-healing and environmental restoration to facilitate carbon neutrality: a critical review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:38083-38098. [PMID: 38806987 DOI: 10.1007/s11356-024-33824-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Accepted: 05/22/2024] [Indexed: 05/30/2024]
Abstract
Soil contamination, land desertification and concrete cracking can have significant adverse impacts on sustainable human economic and societal development. Cost-effective and environmentally friendly approaches are recommended to resolve these issues. Microbially induced carbonate precipitation (MICP) is an innovative, attractive and cost-effective in situ biotechnology with high potential for remediation of polluted or desertified soils/lands and cracked concrete and has attracted widespread attention in recent years. Accordingly, the principles of MICP technology and its applications in the remediation of heavy metal-contaminated and desertified soils and self-healing of concrete were reviewed in this study. The production of carbonate mineral precipitates during the MICP process can effectively reduce the mobility of heavy metals in soils, improve the cohesion of dispersed sands and realize self-healing of cracks in concrete. Moreover, CO2 can be fixed during MICP, which can facilitate carbon neutrality and contribute to global warming mitigation. Overall, MICP technology exhibits great promise in environmental restoration and construction engineering applications, despite some challenges remaining in its large-scale implementation, such as the substantial impacts of fluctuating environmental factors on microbial activity and MICP efficacy. Several methods, such as the use of natural materials or wastes as nutrient and calcium sources and isolation of bacterial strains with strong resistance to harsh environmental conditions, are employed to improve the remediation performance of MICP. However, more studies on the efficiency enhancement, mechanism exploration and field-scale applications of MICP are needed.
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Affiliation(s)
- Junjun Chang
- Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, School of Ecology and Environmental Science, Yunnan University, Kunming, 650500, China
- Yunnan Field Scientific Station for Restoration of Ecological Function in Central Yunnan of China, Yunnan University, Kunming, 650091, China
| | - Dongyang Yang
- Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, School of Ecology and Environmental Science, Yunnan University, Kunming, 650500, China
- School of Architecture and Planning, Yunnan University, Kunming, 650500, China
| | - Cheng Lu
- Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, School of Ecology and Environmental Science, Yunnan University, Kunming, 650500, China
| | - Zhitao Shu
- Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, School of Ecology and Environmental Science, Yunnan University, Kunming, 650500, China
| | - Shengjiong Deng
- Yunnan Key Laboratory for Plateau Mountain Ecology and Restoration of Degraded Environments, School of Ecology and Environmental Science, Yunnan University, Kunming, 650500, China.
- Institute of International Rivers and Eco-security, Yunnan University, Kunming, 650500, China.
| | - Liwei Tan
- China Railway Development Investment Group Co., LTD, Kunming, 650100, China
| | - Shaoqing Wen
- China Railway Development Investment Group Co., LTD, Kunming, 650100, China
| | - Ke Huang
- China Railway No.5 Bureau Group First Engineering Co. Ltd, Changsha, 410116, China
| | - Pengchang Duan
- China Railway No.5 Bureau Group First Engineering Co. Ltd, Changsha, 410116, China
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Xue ZF, Cheng WC, Wang L, Xie YX. Catalyzing urea hydrolysis using two-step microbial-induced carbonate precipitation for copper immobilization: Perspective of pH regulation. Front Microbiol 2022; 13:1001464. [PMID: 36187975 PMCID: PMC9522901 DOI: 10.3389/fmicb.2022.1001464] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 08/29/2022] [Indexed: 11/17/2022] Open
Abstract
Microbial induced carbonate precipitation (MICP) has recently applied to immobilize heavy metals toward preventing their threats to public health and sustainable development of surrounding environments. However, for copper metallurgy activities higher copper ion concentrations cause the ureolytic bacteria to lose their activity, leading to some difficulty in forming carbonate precipitation for copper immobilization (referred to also as “biomineralization”). A series test tube experiments were conducted in the present work to investigate the effects of bacterial inoculation and pH conditions on the copper immobilization efficiency. The numerical simulations mainly aimed to compare with the experimental results to verify its applicability. The copper immobilization efficiency was attained through azurite precipitation under pH in a 4–6 range, while due to Cu2+ migration and diffusion, it reduced to zero under pH below 4. In case pH fell within a 7–9 range, the immobilization efficiency was attained via malachite precipitation. The copper-ammonia complexes formation reduced the immobilization efficiency to zero. The reductions were attributed either to the low degree of urea hydrolysis or to inappropriate pH conditions. The findings shed light on the necessity of securing the urease activity and modifying pH conditions using the two-step biomineralization approach while applying the MICP technology to remedy copper-rich water bodies.
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Affiliation(s)
- Zhong-Fei Xue
- School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, China
- Shaanxi Key Laboratory of Geotechnical and Underground Space Engineering (XAUAT), Xi’an, China
| | - Wen-Chieh Cheng
- School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, China
- Shaanxi Key Laboratory of Geotechnical and Underground Space Engineering (XAUAT), Xi’an, China
- *Correspondence: Wen-Chieh Cheng,
| | - Lin Wang
- School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, China
- Shaanxi Key Laboratory of Geotechnical and Underground Space Engineering (XAUAT), Xi’an, China
| | - Yi-Xin Xie
- School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, China
- Shaanxi Key Laboratory of Geotechnical and Underground Space Engineering (XAUAT), Xi’an, China
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Comadran-Casas C, Schaschke CJ, Akunna JC, Jorat ME. Cow urine as a source of nutrients for Microbial-Induced Calcite Precipitation in sandy soil. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 304:114307. [PMID: 34942547 DOI: 10.1016/j.jenvman.2021.114307] [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: 06/21/2021] [Revised: 11/16/2021] [Accepted: 12/12/2021] [Indexed: 06/14/2023]
Abstract
Microbial Induced Calcite Precipitation (MICP) via biostimulation of urea hydrolysis is a biogeochemical process in which soil indigenous ureolytic microorganisms catalyse the decomposition of urea into ammonium and carbonate ions which, in the presence of calcium, precipitate as calcium carbonate minerals. The environmental conditions created by urine in soil resemble those induced by MICP via urea hydrolysis. Thus, this study assesses the suitability of a waste product, cow urine, as a source of nutrients for MICP. Urea stability in fresh and sterilised urine were monitored for a month to cover the length of a potential MICP intervention. An experimental soil column set up was used to compare the soil response to the repeated application of fresh and sterilised cow urine, within pH of 7 and 9, and the chemical-based solution. Urea hydrolysis and the carbonate content in solution were monitored to assess the suitability of the proposed alternative. In addition, the nitrification process was monitored. Key findings indicated i) urea concentration and stability in fresh and sterilised cow urine are suitable for MICP application; ii) the soil response to treatments of cow urine within pH of 7 and 9 are similar to the chemical-based solution; and iii) increasing solution pH results in a faster activation of ureolytic microorganisms and higher carbonate content in solution. These results demonstrate that cow urine is a suitable substitute of the chemical-based MICP application.
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Affiliation(s)
| | - Carl J Schaschke
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, United Kingdom
| | - Joseph C Akunna
- School of Applied Sciences, Abertay University, Dundee, United Kingdom
| | - M Ehsan Jorat
- School of Applied Sciences, Abertay University, Dundee, United Kingdom
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