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De Oliveira Maciel A, Christakopoulos P, Rova U, Antonopoulou I. Enzyme-accelerated CO 2 capture and storage (CCS) using paper and pulp residues as co-sequestrating agents. RSC Adv 2024; 14:6443-6461. [PMID: 38380236 PMCID: PMC10878411 DOI: 10.1039/d3ra06927c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 02/07/2024] [Indexed: 02/22/2024] Open
Abstract
In the present work, four CaCO3-rich solid residues from the pulp and paper industry (lime mud, green liquor sludge, electrostatic precipitator dust, and lime dregs) were assessed for their potential as co-sequestrating agents in carbon capture. Carbonic anhydrase (CA) was added to promote both CO2 hydration and residue mineral dissolution, offering an enhancement in CO2-capture yield under atmospheric (up to 4-fold) and industrial-gas mimic conditions (up to 2.2-fold). Geological CO2 storage using olivine as a reference material was employed in two stages: one involving mineral dissolution, with leaching of Mg2+ and SiO2 from olivine; and the second involving mineral carbonation, converting Mg2+ and bicarbonate to MgCO3 as a permanent storage form of CO2. The results showed an enhanced carbonation yield up to 6.9%, when CA was added in the prior CO2-capture step. The proposed route underlines the importance of the valorization of industrial residues toward achieving neutral, or even negative emissions in the case of bioenergy-based plants, without the need for energy-intensive compression and long-distance transport of the captured CO2. This is a proof of concept for an integrated strategy in which a biocatalyst is applied as a CO2-capture promoter while CO2 storage can be done near industrial sites with adequate geological characteristics.
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Affiliation(s)
- Ayanne De Oliveira Maciel
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology SE-97187 Luleå Sweden
| | - Paul Christakopoulos
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology SE-97187 Luleå Sweden
| | - Ulrika Rova
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology SE-97187 Luleå Sweden
| | - Io Antonopoulou
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology SE-97187 Luleå Sweden
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2
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Namikawa Y, Suzuki M. Atmospheric CO 2 Sequestration in Seawater Enhanced by Molluscan Shell Powders. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:2404-2412. [PMID: 38252973 DOI: 10.1021/acs.est.3c09273] [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: 01/24/2024]
Abstract
Carbon capture, utilization, and storage (CCUS) are widely recognized as a promising technology for mitigating climate change. CO2 mineralization using Ca-rich fluids and high-concentration CO2 gas has been studied extensively. However, few studies have reported CO2 mineralization with atmospheric CO2, owing to the difficulty associated with its low concentration. In seawater, the biomineralization process promotes Ca accumulation and CaCO3 precipitation, assisted by specific organic matter. In this study, we examined the conversion of atmospheric CO2 into CaCO3 in seawater using shell powders (Pinctada fucata, Haliotis discus, Crassostrea gigas, Mizuhopecten yessoensis, Turbo sazae, and Saxidomus purpurata). Among the six species, the shell powder of S. purpurata showed the highest rate of CaCO3 formation and recovery of CaCO3. NaClO treatment test revealed that the organic matter in the shells enhanced the CO2 mineralization. All materials used in this study, including atmospheric CO2, seawater, and shells, are economically feasible for large-scale applications. Using shell powder for CO2 mineralization in seawater embodies an innovative technological advancement to address climate change.
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Affiliation(s)
- Yuto Namikawa
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Michio Suzuki
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
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3
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Jo BH. Improved Solubility and Stability of a Thermostable Carbonic Anhydrase via Fusion with Marine-Derived Intrinsically Disordered Solubility Enhancers. Int J Mol Sci 2024; 25:1139. [PMID: 38256209 PMCID: PMC10816239 DOI: 10.3390/ijms25021139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/12/2024] [Accepted: 01/16/2024] [Indexed: 01/24/2024] Open
Abstract
Carbonic anhydrase (CA), an enzyme catalyzing the reversible hydration reaction of carbon dioxide (CO2), is considered a promising biocatalyst for CO2 reduction. The α-CA of Thermovibrio ammonificans (taCA) has emerged as a compelling candidate due to its high thermostability, a critical factor for industrial applications. However, the low-level expression and poor in vitro solubility have hampered further utilization of taCA. Recently, these limitations have been addressed through the fusion of the NEXT tag, a marine-derived, intrinsically disordered small peptide that enhances protein expression and solubility. In this study, the solubility and stability of NEXT-taCA were further investigated. When the linker length between the NEXT tag and the taCA was shortened, the expression level decreased without compromising solubility-enhancing performance. A comparison between the NEXT tag and the NT11 tag demonstrated the NEXT tag's superiority in improving both the expression and solubility of taCA. While the thermostability of taCA was lower than that of the extensively engineered DvCA10, the NEXT-tagged taCA exhibited a 30% improvement in long-term thermostability compared to the untagged taCA, suggesting that enhanced solubility can contribute to enzyme thermostability. Furthermore, the bioprospecting of two intrinsically disordered peptides (Hcr and Hku tags) as novel solubility-enhancing fusion tags was explored, demonstrating their performance in improving the expression and solubility of taCA. These efforts will advance the practical application of taCA and provide tools and insights for enzyme biochemistry and bioengineering.
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Affiliation(s)
- Byung Hoon Jo
- Division of Life Science, Research Institute of Life Science, and Anti-Aging Bio Cell Factory Regional Leading Research Center (ABC-RLRC), Gyeongsang National University, Jinju 52828, Republic of Korea
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4
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Rashid MI, Yaqoob Z, Mujtaba M, Fayaz H, Saleel CA. Developments in mineral carbonation for Carbon sequestration. Heliyon 2023; 9:e21796. [PMID: 38027886 PMCID: PMC10660523 DOI: 10.1016/j.heliyon.2023.e21796] [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: 07/10/2023] [Revised: 10/17/2023] [Accepted: 10/28/2023] [Indexed: 12/01/2023] Open
Abstract
Mineral technology has attracted significant attention in recent decades. Mineral carbonation technology is being used for permanent sequestration of CO2 (greenhouse gas). Temperature programmed desorption studies showed interaction of CO2 with Mg indicating possibility of using natural feedstocks for mineral carbonation. Soaking is effective to increase yields of heat-activated materials. This review covers the latest developments in mineral carbonation technology. In this review, development in carbonation of natural minerals, effect of soaking on raw and heat-activated dunite, increasing reactivity of minerals, thermal activation, carbonations of waste materials, increasing efficiency of carbonation process and pilot plants on mineral carbonation are discussed. Developments in carbonation processes (single-stage carbonation, two-stage carbonation, acid dissolution, ph swing process) and pre-process and concurrent grinding are elaborated. This review also highlights future research required in mineral carbonation technology.
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Affiliation(s)
- Muhammad Imran Rashid
- Chemical, Polymer and Composite Materials Engineering Department, University of Engineering and Technology, Lahore (New Campus), 39021, Pakistan
- Discipline of Chemical Engineering, University of Newcastle, Callaghan NSW 2308, Australia
| | - Zahida Yaqoob
- Department of Material Science and Engineering, Institute of Space Technology, Islamabad, 44000, Pakistan
| | - M.A. Mujtaba
- Department of Mechanical Engineering, University of Engineering and Technology (New Campus), Lahore 54890, Pakistan
| | - H. Fayaz
- Modeling Evolutionary Algorithms Simulation and Artificial Intelligence, Faculty of Electrical & Electronics Engineering, Ton Duc Thang University, Ho Chi Minh City, Viet Nam
| | - C Ahamed Saleel
- Department of Mechanical Engineering, College of Engineering, King Khalid University, Asir-Abha 61421, Saudi Arabia
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5
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Villa R, Nieto S, Donaire A, Lozano P. Direct Biocatalytic Processes for CO 2 Capture as a Green Tool to Produce Value-Added Chemicals. Molecules 2023; 28:5520. [PMID: 37513391 PMCID: PMC10383722 DOI: 10.3390/molecules28145520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/14/2023] [Accepted: 07/16/2023] [Indexed: 07/30/2023] Open
Abstract
Direct biocatalytic processes for CO2 capture and transformation in value-added chemicals may be considered a useful tool for reducing the concentration of this greenhouse gas in the atmosphere. Among the other enzymes, carbonic anhydrase (CA) and formate dehydrogenase (FDH) are two key biocatalysts suitable for this challenge, facilitating the uptake of carbon dioxide from the atmosphere in complementary ways. Carbonic anhydrases accelerate CO2 uptake by promoting its solubility in water in the form of hydrogen carbonate as the first step in converting the gas into a species widely used in carbon capture storage and its utilization processes (CCSU), particularly in carbonation and mineralization methods. On the other hand, formate dehydrogenases represent the biocatalytic machinery evolved by certain organisms to convert CO2 into enriched, reduced, and easily transportable hydrogen species, such as formic acid, via enzymatic cascade systems that obtain energy from chemical species, electrochemical sources, or light. Formic acid is the basis for fixing C1-carbon species to other, more reduced molecules. In this review, the state-of-the-art of both methods of CO2 uptake is assessed, highlighting the biotechnological approaches that have been developed using both enzymes.
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Affiliation(s)
- Rocio Villa
- Departamento de Bioquímica y Biología Molecular B e Inmunología, Facultad de Química, Universidad de Murcia, 30100 Murcia, Spain
- Department of Biotechnology, Delft University of Technology, 2629 HZ Delft, The Netherlands
| | - Susana Nieto
- Departamento de Bioquímica y Biología Molecular B e Inmunología, Facultad de Química, Universidad de Murcia, 30100 Murcia, Spain
| | - Antonio Donaire
- Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia, 30100 Murcia, Spain
| | - Pedro Lozano
- Departamento de Bioquímica y Biología Molecular B e Inmunología, Facultad de Química, Universidad de Murcia, 30100 Murcia, Spain
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6
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Burnie TM, Power IM, Paulo C, Alçiçek H, Falcón LI, Lin Y, Wilson SA. Environmental and Mineralogical Controls on Biosignature Preservation in Magnesium Carbonate Systems Analogous to Jezero Crater, Mars. ASTROBIOLOGY 2023; 23:513-535. [PMID: 36944136 DOI: 10.1089/ast.2022.0111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Jezero Crater on Mars is a paleolacustrine environment where Mg-carbonates may host evidence of ancient life. To elucidate the environmental and mineralogical controls on biosignature preservation, we examined samples from five terrestrial analogs: Lake Salda (Turkey), Lake Alchichica (Mexico), Qinghai-Tibetan Plateau (China), Mg-carbonate playas (British Columbia, Canada), and a mine with fine-grained ultramafic tailings (Yukon, Canada). The mineralogical compositions of the samples varied, yet were often dominated by either aragonite (CaCO3) or hydromagnesite [Mg5(CO3)4(OH)2·4H2O]. Aragonite-rich samples from Alchichica, Mg-carbonate playas, and the ultramafic mine contained an abundance of entombed microbial biomass, including organic structures that resembled cells, whereas hydromagnesite-rich samples were devoid of microfossils. Aragonite often precipitates subaqueously where microbes thrive, thereby increasing the likelihood of biomass entombment, while hydrated Mg-carbonates typically form by evaporation in subaerial settings where biofilms are less prolific. Magnesite (MgCO3), the most stable Mg-carbonate, forms extremely slowly, which may limit the capture of biosignatures. Hydrated Mg-carbonates are prone to transformation via coupled dissolution-precipitation reactions that may expose biosignatures to degradation. Although less abundant, aragonite is commonly found in Mg-carbonate environments and is a better medium for biosignature preservation due to its fast precipitation rates and relative stability, as well as its tendency to form subaqueously and lithify. Consequently, we propose that aragonite be considered a valuable exploration target on Mars.
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Affiliation(s)
- Teanna M Burnie
- Trent School of the Environment, Trent University, Peterborough, Ontario, Canada
| | - Ian M Power
- Trent School of the Environment, Trent University, Peterborough, Ontario, Canada
| | - Carlos Paulo
- Trent School of the Environment, Trent University, Peterborough, Ontario, Canada
| | - Hülya Alçiçek
- Department of Geology, Pamukkale University, Denizli, Turkey
| | - Luisa I Falcón
- Instituto de Ecología, Universidad Nacional Autónoma de Mexico, México DF, Mexico
| | - Yongjie Lin
- Key Laboratory of Saline Lake Resources and Environments of Ministry of Natural Resources, Institute of Mineral Resource, Chinese Academy of Geological Sciences, Beijing, China
- Department of Earth Sciences, University of Cambridge, Cambridge, United Kingdom
| | - Siobhan A Wilson
- Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta, Canada
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7
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Bullock LA, Alcalde J, Tornos F, Fernandez-Turiel JL. Geochemical carbon dioxide removal potential of Spain. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 867:161287. [PMID: 36587666 DOI: 10.1016/j.scitotenv.2022.161287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/14/2022] [Accepted: 12/26/2022] [Indexed: 06/17/2023]
Abstract
Many countries have made pledges to reduce CO2 emissions over the upcoming decades to meet the Paris Agreement targets of limiting warming to no >1.5 °C, aiming for net zero by mid-century. To achieve national reduction targets, there is a further need for CO2 removal (CDR) approaches on a scale of millions of tonnes, necessitating a better understanding of feasible methods. One approach that is gaining attention is geochemical CDR, encompassing (1) in-situ injection of CO2-rich gases into Ca and Mg-rich rocks for geological storage by mineral carbonation, (2) ex-situ ocean alkalinity enhancement, enhanced weathering and mineral carbonation of alkaline-rich materials, and (3) electrochemical separation processes. In this context, Spain may host a notionally high geochemical CDR capacity thanks to its varied geological setting, including extensive mafic-ultramafic and carbonate rocks. However, pilot schemes and large-scale strategies for CDR implementation are presently absent in-country, partly due to gaps in current knowledge and lack of attention paid by regulatory bodies. Here, we identify possible materials, localities and avenues for future geochemical CDR research and implementation strategies within Spain. This study highlights the kilotonne to million tonne scale CDR options for Spain over the rest of the century, with attention paid to chemically and mineralogically appropriate materials, suitable implementation sites and potential strategies that could be followed. Mafic, ultramafic and carbonate rocks, mine tailings, fly ashes, slag by-products, desalination brines and ceramic wastes hosted and produced in Spain are of key interest, with industrial, agricultural and coastal areas providing opportunities to launch pilot schemes. Though there are obstacles to reaching the maximum CDR potential, this study helps to identify focused targets that will facilitate overcoming such barriers. The CDR potential of Spain warrants dedicated investigations to achieve the highest possible CDR to make valuable contributions to national reduction targets.
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Affiliation(s)
- Liam A Bullock
- Geosciences Barcelona (GEO3BCN), CSIC, Lluis Solé i Sabarís s/n, 08028 Barcelona, Spain.
| | - Juan Alcalde
- Geosciences Barcelona (GEO3BCN), CSIC, Lluis Solé i Sabarís s/n, 08028 Barcelona, Spain
| | - Fernando Tornos
- Instituto de Geociencias (IGEO, CSIC-UCM), Dr Severo Ochoa, 7, 28040 Madrid, Spain
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Dong H, Huang L, Zhao L, Zeng Q, Liu X, Sheng Y, Shi L, Wu G, Jiang H, Li F, Zhang L, Guo D, Li G, Hou W, Chen H. A critical review of mineral-microbe interaction and coevolution: mechanisms and applications. Natl Sci Rev 2022; 9:nwac128. [PMID: 36196117 PMCID: PMC9522408 DOI: 10.1093/nsr/nwac128] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/21/2022] [Accepted: 06/28/2022] [Indexed: 11/12/2022] Open
Abstract
Abstract
The mineral-microbe interactions play important roles in environmental change, biogeochemical cycling of elements, and formation of ore deposits. Minerals provide both beneficial (physical and chemical protection, nutrients, and energy) and detrimental (toxic substances and oxidative pressure) effects to microbes, resulting in mineral-specific microbial colonization. Microbes impact dissolution, transformation, and precipitation of minerals through their activity, resulting in either genetically-controlled or metabolism-induced biomineralization. Through these interactions minerals and microbes coevolve through Earth history. The mineral-microbe interactions typically occur at microscopic scale but the effect is often manifested at global scale. Despite advances achieved through decades of research, major questions remain. Four areas are identified for future research: integrating mineral and microbial ecology, establishing mineral biosignatures, linking laboratory mechanistic investigation to field observation, and manipulating mineral-microbe interactions for the benefit of humankind.
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Affiliation(s)
- Hailiang Dong
- Center for Geomicrobiology and Biogeochemistry Research, State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences , Beijing 100083 , China
| | - Liuqin Huang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences , Wuhan 430074 , China
| | - Linduo Zhao
- Illinois Sustainable Technology Center , Illinois State Water Survey, , Champaign , IL 61820 , USA
- University of Illinois at Urbana-Champaign , Illinois State Water Survey, , Champaign , IL 61820 , USA
| | - Qiang Zeng
- Center for Geomicrobiology and Biogeochemistry Research, State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences , Beijing 100083 , China
| | - Xiaolei Liu
- Center for Geomicrobiology and Biogeochemistry Research, State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences , Beijing 100083 , China
| | - Yizhi Sheng
- Center for Geomicrobiology and Biogeochemistry Research, State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences , Beijing 100083 , China
| | - Liang Shi
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences , Wuhan 430074 , China
| | - Geng Wu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences , Wuhan 430074 , China
| | - Hongchen Jiang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences , Wuhan 430074 , China
| | - Fangru Li
- Center for Geomicrobiology and Biogeochemistry Research, State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences , Beijing 100083 , China
| | - Li Zhang
- Department of Geology and Environmental Earth Science, Miami University , Oxford , OH 45056 , USA
| | - Dongyi Guo
- Center for Geomicrobiology and Biogeochemistry Research, State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences , Beijing 100083 , China
| | - Gaoyuan Li
- Center for Geomicrobiology and Biogeochemistry Research, State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences , Beijing 100083 , China
| | - Weiguo Hou
- Center for Geomicrobiology and Biogeochemistry Research, State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences , Beijing 100083 , China
| | - Hongyu Chen
- Center for Geomicrobiology and Biogeochemistry Research, State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences , Beijing 100083 , China
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9
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de Oliveira Maciel A, Christakopoulos P, Rova U, Antonopoulou I. Carbonic anhydrase to boost CO 2 sequestration: Improving carbon capture utilization and storage (CCUS). CHEMOSPHERE 2022; 299:134419. [PMID: 35364080 DOI: 10.1016/j.chemosphere.2022.134419] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 03/21/2022] [Accepted: 03/23/2022] [Indexed: 06/14/2023]
Abstract
CO2 Capture Utilization and Storage (CCUS) is a fundamental strategy to mitigate climate change, and carbon sequestration, through absorption, can be one of the solutions to achieving this goal. In nature, carbonic anhydrase (CA) catalyzes the CO2 hydration to bicarbonates. Targeting the development of novel biotechnological routes which can compete with traditional CO2 absorption methods, CA utilization has presented a potential to expand as a promising catalyst for CCUS applications. Driven by this feature, the search for novel CAs as biocatalysts and the utilization of enzyme improvement techniques, such as protein engineering and immobilization methods, has resulted in suitable variants able to catalyze CO2 absorption at relevant industrial conditions. Limitations related to enzyme recovery and recyclability are still a concern in the field, affecting cost efficiency. Under different absorption approaches, CA enhances both kinetics and CO2 absorption yields, besides reduced energy consumption. However, efforts directed to process optimization and demonstrative plants are still limited. A recent topic with great potential for development is the CA utilization in accelerated weathering, where industrial residues could be re-purposed towards becoming carbon sequestrating agents. Furthermore, research of new solvents has identified potential candidates for integration with CA in CO2 capture, and through techno-economic assessments, CA can be a path to increase the competitiveness of alternative CO2 absorption systems, offering lower environmental costs. This review provides a favorable scenario combining the enzyme and CO2 capture, with possibilities in reaching an industrial-like stage in the future.
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Affiliation(s)
- Ayanne de Oliveira Maciel
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, SE-97187 Luleå, Sweden
| | - Paul Christakopoulos
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, SE-97187 Luleå, Sweden
| | - Ulrika Rova
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, SE-97187 Luleå, Sweden
| | - Io Antonopoulou
- Biochemical Process Engineering, Division of Chemical Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, SE-97187 Luleå, Sweden.
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Tanaka S, Takahashi K, Abe M, Noguchi M, Yamasaki A. Preparation of High-Purity Calcium Carbonate by Mineral Carbonation Using Concrete Sludge. ACS OMEGA 2022; 7:19600-19605. [PMID: 35721928 PMCID: PMC9202254 DOI: 10.1021/acsomega.2c01297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 05/19/2022] [Indexed: 06/15/2023]
Abstract
A new type of mineral carbonation process for concrete sludge, a waste of fresh concrete under hydration, was developed, and the carbonation performances of the process were examined by laboratory-scale experiments. The process is composed of two steps; filtration of concrete sludge and bubbling of CO2 into the filtrate to form calcium carbonate. Model concrete sludge, a mixture of cement and water, was filtered through a cellulose filter after hydration for 24 h to obtain a solution containing dissolved calcium ions. Then, the model flue gas containing CO2 (10%) was bubbled through the filtrate solution, and calcium carbonate was precipitated by the carbonation reaction. About 3% of calcium in the concrete sludge could be extracted into the filtrate in a single filtration step, and more than 95% of dissolved calcium was recovered as calcium carbonate by the bubbling of CO2. The obtained calcium carbonate was calcite with a high purity (>95%) and 5-10 μm. The solid residue (concrete sludge) after filtration was mixed with fresh water and filtered through a cellulose filter. Then, the model flue gas was bubbled into the filtrate solution for carbonation. This filtration-bubbling step was repeated 5 times, and 10.8% of calcium in the feed cement was extracted into the filtrates in total. More than 95% of the extracted calcium could be recovered as calcium carbonate with high purity (>97%), and the overall conversion of calcium in the feed cement to calcium carbonate was 10.1%. The purity of calcium carbonate and the calcium conversion were much higher than those for the direct bubbling method, where the model flue gas is bubbled into concrete sludge.
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11
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Sun H, Han J, Jo Y, Han SO, Hyeon JE. Increased Thermal Stability of the Carbonic Anhydrase Enzyme Complex for the Efficient Reduction of CO2 through Cyclization and Polymerization by Peptide Bonding. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Bullock LA, Yang A, Darton RC. Kinetics-informed global assessment of mine tailings for CO 2 removal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 808:152111. [PMID: 34871673 DOI: 10.1016/j.scitotenv.2021.152111] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 11/05/2021] [Accepted: 11/27/2021] [Indexed: 06/13/2023]
Abstract
Chemically reactive mine tailings are a potential resource for drawing down carbon dioxide out of the atmosphere in mineral weathering schemes. Such carbon dioxide removal (CDR) systems, applied on a large scale, could help to meet internationally agreed targets for minimising climate change, but crucially we need to identify what materials could react fast enough to provide CDR at relevant climate change mitigation timescales. This study focuses on a range of silicate-dominated tailings, calculating their CDR potential from their chemical composition (specific capacity), estimated global production rates, and the speed of weathering under different reaction conditions. Tailings containing high abundances of olivine, serpentine and diopside show the highest CDR potential due to their favourable kinetics. We conclude that the most suitable tailings for CDR purposes are those associated with olivine dunites, diamond kimberlites, asbestos and talc serpentinites, Ni sulphides, and PGM layered mafic intrusions. We estimate the average annual global CDR potential of tailings weathered over the 70-year period 2030-2100 to be ~93 (unimproved conditions) to 465 (improved conditions) Mt/year. Results indicate that at least 30 countries possess tailings materials that, under improved conditions, may offer a route for CDR which is not currently utilised within the mining industry. By 2100, the total cumulative CDR could reach some 33 GtCO2, of which more than 60% is contributed by PGM tailings produced in Southern Africa, Russia, and North America. The global CDR potential could be increased by utilization of historic tailings and implementing measures to further enhance chemical reaction rates. If practical considerations can be addressed and enhanced weathering rates can be achieved, then CDR from suitable tailings could contribute significantly to national offset goals and global targets. More research is needed to establish the potential and practicality of this technology, including measurements of the mineral weathering kinetics under various conditions.
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Affiliation(s)
- Liam A Bullock
- Department of Engineering Science, Parks Road, University of Oxford, Oxford, United Kingdom.
| | - Aidong Yang
- Department of Engineering Science, Parks Road, University of Oxford, Oxford, United Kingdom
| | - Richard C Darton
- Department of Engineering Science, Parks Road, University of Oxford, Oxford, United Kingdom
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13
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Hwang IS, Kim JH, Jo BH. Enhanced Production of a Thermostable Carbonic Anhydrase in Escherichia coli by Using a Modified NEXT Tag. Molecules 2021; 26:5830. [PMID: 34641375 PMCID: PMC8510462 DOI: 10.3390/molecules26195830] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 09/23/2021] [Accepted: 09/23/2021] [Indexed: 11/17/2022] Open
Abstract
Carbonic anhydrase (CA) is an ultrafast enzyme that catalyzes the reversible conversion of carbon dioxide (CO2) to bicarbonate. CA is considered to be a green catalyst for enzyme-based CO2 capture and utilization. In particular, the CA of Thermovibrio ammonificans (taCA) has attracted increasing attention as a highly stable enzyme. However, the poor solubility and the low expression level in Escherichia coli have hampered further utilization of taCA. In a recent study, these limitations were partly resolved by using a small solubility-enhancing fusion tag named NEXT, which originates from the N-terminal extension of Hydrogenovibrio marinus CA. In this study, the NEXT tag was engineered by adding small peptides to the N terminus to further increase the production yield of NEXT-tagged taCA. The addition of ng3 peptide (His-Gly-Asn) originating from the N-terminal sequence of Neisseria gonorrhoeae CA improved the expression of NEXT-taCA, while the previously developed translation-enhancing element (TEE) and Ser-Lys-Ile-Lys (SKIK) tag were not effective. The expression test with all 16 codon combinations for the ng3 sequence revealed that the change in translation initiation rate brought about by the change in nucleotide sequence was not the primary determinant for the change in expression level. The modified ng3-NEXT tag may be applied to increase the production yields of various recombinant proteins.
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Affiliation(s)
- In Seong Hwang
- Division of Applied Life Science, Gyeongsang National University, Jinju 52828, Korea;
| | - Joo Hyeon Kim
- Division of Life Science, Gyeongsang National University, Jinju 52828, Korea;
| | - Byung Hoon Jo
- Division of Life Science and Research Institute of Life Science, Gyeongsang National University, Jinju 52828, Korea
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Singh P, Jain KR, Shah V, Madamwar D. White Rann of Kachchh harbours distinct microbial diversity reflecting its unique biogeography. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 783:147094. [PMID: 34088141 DOI: 10.1016/j.scitotenv.2021.147094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 04/06/2021] [Accepted: 04/08/2021] [Indexed: 06/12/2023]
Abstract
The understanding of sub-surface soil microbial diversity is limited at both saline and hypersaline ecosystems, even though salinity is found to affect the microbial community in aqueous and terrestrial environment. In this study, a phylo-taxonomy analysis as well as the functional characteristics of microbial community of flat salt basin of White Rann of Kachchh (WR), Gujarat, India was performed along the natural salinity gradient. The high throughput sequencing approach has revealed the numerical abundance of bacteria relative to the archaea. Salinity, TOC, EC and sulphate concentration might be the primary driver of the community distribution along the transect at WR. The much anticipated effect of salinity gradient on the microbial composition surprisingly turned out to be more speculative, with little variance in the community composition along the spatial distance of WR. The metabolic pathways involved in energy metabolism (like carbon, nitrogen, sulphur) along with environmental adaptive genes (like osmotic and oxidative stress response, heat and cold shock genes clusters) were abundantly annotated from shot-gun metagenomic study. The carbonic anhydrase harbouring bacteria Bacillus sp. DM4CA1 was isolated from WR, having a catalytic ability for converting the gaseous carbon dioxide in presence of calcium carbonate into calcite at 25 % higher rate as compared to non-harbouring strains. The enzyme has a role in multiple alternative pathways in microbial metabolism. With the array of results obtained, the study could become the new reference for understanding the diversity structure and functional characteristics of the microbial community of terrestrial saline environment.
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Affiliation(s)
- Prachi Singh
- Post-Graduate Department of Biosciences, UGC Centre of Advanced Study, Sardar Patel University, Satellite Campus, Vadtal Road, Bakrol, 388 315 Anand, Gujarat, India.
| | - Kunal R Jain
- Post-Graduate Department of Biosciences, UGC Centre of Advanced Study, Sardar Patel University, Satellite Campus, Vadtal Road, Bakrol, 388 315 Anand, Gujarat, India
| | - Varun Shah
- School of Life Sciences, Faculty of Science, Atmiya University, Yogidham Gurukul, Kalawad Road, Rajkot 360 005, Gujarat, India; Aanvik LifeSciences Pvt. Ltd., Ahmedabad 380 013, Gujarat, India
| | - Datta Madamwar
- Post-Graduate Department of Biosciences, UGC Centre of Advanced Study, Sardar Patel University, Satellite Campus, Vadtal Road, Bakrol, 388 315 Anand, Gujarat, India; P.D. Patel Institute of Applied Sciences, Charotar University of Sciences and Technology (CHARUSAT), Changa 388 421, Gujarat, India.
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15
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Power IM, Paulo C, Long H, Lockhart JA, Stubbs AR, French D, Caldwell R. Carbonation, Cementation, and Stabilization of Ultramafic Mine Tailings. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:10056-10066. [PMID: 34236189 DOI: 10.1021/acs.est.1c01570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Tailings dam failures can cause devastation to the environment, loss of human life, and require expensive remediation. A promising approach for de-risking brucite-bearing ultramafic tailings is in situ cementation via carbon dioxide (CO2) mineralization, which also sequesters this greenhouse gas within carbonate minerals. In cylindrical test experiments, brucite [Mg(OH)2] carbonation was accelerated by coupling organic and inorganic carbon cycling. Waste organics generated CO2 concentrations similar to that of flue gas (up to 19%). The abundance of brucite (2-10 wt %) had the greatest influence on tailings cementation as evidenced by the increase in total inorganic carbon (TIC; +0.17-0.84%). Brucite consumption ranged from 64-84% of its initial abundance and was mainly influenced by water availability. Higher moisture contents (e.g., 80% saturation) and finer grain sizes (e.g., clay-silt) that allowed for a better distribution of water resulted in greater brucite carbonation. Furthermore, pore clogging and surface passivation by Mg-carbonates may have slowed brucite carbonation over the 10 weeks. Unconfined compressive strengths ranged from 0.4-6.9 MPa and would be sufficient in most scenarios to adequately stabilize tailings. Our study demonstrates the potential for stabilizing brucite-bearing mine tailings through in situ cementation while sequestering CO2.
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Affiliation(s)
- Ian M Power
- Trent School of the Environment, Trent University, 1600 West Bank Drive, Peterborough, Ontario K9L 0G2, Canada
| | - Carlos Paulo
- Trent School of the Environment, Trent University, 1600 West Bank Drive, Peterborough, Ontario K9L 0G2, Canada
| | - Hannah Long
- Trent School of the Environment, Trent University, 1600 West Bank Drive, Peterborough, Ontario K9L 0G2, Canada
| | - Justin A Lockhart
- Trent School of the Environment, Trent University, 1600 West Bank Drive, Peterborough, Ontario K9L 0G2, Canada
| | - Amanda R Stubbs
- Trent School of the Environment, Trent University, 1600 West Bank Drive, Peterborough, Ontario K9L 0G2, Canada
| | - David French
- SGS Canada Inc., 185 Concession Street, Lakefield, Ontario K0L 2H0, Canada
| | - Robert Caldwell
- SGS Canada Inc., 185 Concession Street, Lakefield, Ontario K0L 2H0, Canada
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16
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Abe M, Tanaka S, Noguchi M, Yamasaki A. Investigation of Mineral Carbonation with Direct Bubbling into Concrete Sludge. ACS OMEGA 2021; 6:15564-15571. [PMID: 34179600 PMCID: PMC8223220 DOI: 10.1021/acsomega.0c04758] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 05/27/2021] [Indexed: 06/13/2023]
Abstract
Mineral carbonation, which is CO2 fixation through a carbonation reaction using alkaline earth metals, is being investigated as a carbon capture and utilization method to reduce CO2 atmospheric emissions. Concrete sludge is an alkali waste material from the concrete industry and contains abundant calcium components. We investigated the applicability of concrete sludge for mineral carbonation. In this study, gas containing CO2 was bubbled through the model concrete sludge solution and the effects of the solid-liquid ratio, bubbling time, gas flow rate, and the partial pressure of CO2 on the CO2 fixation ratio and fixation rate were investigated. The CO2 fixation ratio decreased with increasing CO2 bubbling time, CO2 flow rate, and CO2 partial pressure. The CO2 fixation rate increased with increasing CO2 flow rate and CO2 partial pressure. The formation of calcite, a form of calcium carbonate, was confirmed.
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17
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Liu R, Huang S, Zhang X, Song Y, He G, Wang Z, Lian B. Bio-mineralisation, characterization, and stability of calcium carbonate containing organic matter. RSC Adv 2021; 11:14415-14425. [PMID: 35423988 PMCID: PMC8697732 DOI: 10.1039/d1ra00615k] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 04/07/2021] [Indexed: 12/03/2022] Open
Abstract
The composition of organic matter in biogenic calcium carbonate has long been a mystery, and its role has not received sufficient attention. This study is aimed at elucidating the bio-mineralisation and stability of amorphous calcium carbonate (ACC) and vaterite containing organic matter, as induced by Bacillus subtilis. The results showed that the bacteria could induce various structural forms of CaCO3, such as biogenic ACC (BACC) or biogenic vaterite (BV), using the bacterial cells as their template, and the carbonic anhydrase secreted by the bacteria plays an important role in the mineralisation of CaCO3. The effects of Ca2+ concentration on the crystal structure of CaCO3 were ascertained; when the amount of CaCl2 increased from 0.1% (m/v) to 0.8% (m/v), the ACC was transformed to polycrystalline vaterite. The XRD results demonstrated that the ACC and vaterite have good stability in air or deionised water for one year, or even when heated to 200 °C or 300 °C for 2 h. Moreover, the FTIR results indicated that the BACC or BV is rich in organic matter, and the contents of organic matter in biogenic ACC and vaterite are 39.67 wt% and 28.47 wt%, respectively. The results of bio-mimetic mineralisation experiments suggest that the protein secreted by bacterial metabolism may be inclined to inhibit the formation of calcite, while polysaccharide may be inclined to promote the formation of vaterite. Our findings advance our knowledge of the CaCO3 family and are valuable for future research into organic-CaCO3 complexes.
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Affiliation(s)
- Renlu Liu
- School of Life Sciences, Key Laboratory of Agricultural Environmental Pollution Prevention and Control in Red Soil Hilly Region of Jiangxi Province, Jinggangshan University Ji'an 343009 China
- School of Life Sciences, School of Marine Science and Engineering, Nanjing Normal University Nanjing 210023 China
| | - Shanshan Huang
- School of Life Sciences, School of Marine Science and Engineering, Nanjing Normal University Nanjing 210023 China
| | - Xiaowen Zhang
- School of Life Sciences, School of Marine Science and Engineering, Nanjing Normal University Nanjing 210023 China
| | - Yongsheng Song
- School of Life Sciences, Key Laboratory of Agricultural Environmental Pollution Prevention and Control in Red Soil Hilly Region of Jiangxi Province, Jinggangshan University Ji'an 343009 China
| | - Genhe He
- School of Life Sciences, Key Laboratory of Agricultural Environmental Pollution Prevention and Control in Red Soil Hilly Region of Jiangxi Province, Jinggangshan University Ji'an 343009 China
| | - Zaifeng Wang
- School of Life Sciences, School of Marine Science and Engineering, Nanjing Normal University Nanjing 210023 China
| | - Bin Lian
- School of Life Sciences, School of Marine Science and Engineering, Nanjing Normal University Nanjing 210023 China
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18
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Verma M, Bhaduri GA, Phani Kumar VS, Deshpande PA. Biomimetic Catalysis of CO 2 Hydration: A Materials Perspective. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c06203] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Manju Verma
- Department of Chemical Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj 211004, India
| | - Gaurav A. Bhaduri
- Department of Chemical Engineering, Indian Institute of Technology Jammu, Jammu and Kashmir, 181221, India
| | - V. Sai Phani Kumar
- Quantum and Molecular Engineering Laboratory, Department of Chemical Engineering Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Parag A. Deshpande
- Quantum and Molecular Engineering Laboratory, Department of Chemical Engineering Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
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19
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Ragipani R, Bhattacharya S, Suresh AK. A review on steel slag valorisation via mineral carbonation. REACT CHEM ENG 2021. [DOI: 10.1039/d1re00035g] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Alkaline slags, a waste product of steel industry, provide an opportunity for carbon sequestration and creation of value at the same time. This requires an understanding of the mechanisms of leaching and carbonation.
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Affiliation(s)
- Raghavendra Ragipani
- IITB-Monash Research Academy
- Indian Institute of Technology Bombay
- Mumbai
- India
- Department of Chemical Engineering
| | | | - Akkihebbal K. Suresh
- Department of Chemical Engineering
- Indian Institute of Technology Bombay
- Mumbai
- India
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20
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Protein-caged zinc porphyrin as a carbonic anhydrase mimic for carbon dioxide capture. Sci Rep 2020; 10:19581. [PMID: 33177642 PMCID: PMC7659338 DOI: 10.1038/s41598-020-76482-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 10/16/2020] [Indexed: 11/29/2022] Open
Abstract
Zinc tetraphenylporphyrin (Zn-TPP) solubilized by GroEL protein cage was prepared as a supramolecular mimic of carbonic anhydrase (CA) for CO2 capture. It is shown that the soluble Zn-TPP-GroEL complex can be formed easily by detergent dialysis. The Zn-TPP/GroEL binding ratio was found to increase with their dialysis ratio until reaching the maximum of about 30 porphyrins per protein cage. Moreover, the complex showed hydrase activity that catalyzes the CO2 hydration in HCO3− and H+. It is further seen that the catalytic activity of Zn-TPP-GroEL was about one-half of that of a bovine CA at 25 °C. On the other hand, as the temperature was increased to 60 °C close to an industrial CO2 absorption temperature, the natural enzyme lost function while Zn-TPP-GroEL exhibited better catalytic performance indicative of a higher thermal stability. Finally, we demonstrate that the GroEL-solubilized Zn-TPP is able to accelerate the precipitation of CO2 in the form of CaCO3 and has better long-term performance than the bovine CA. Thus a new type of nano-caged system mimicking natural CAs for potential applications in carbon capture has been established.
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21
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Wi S, Hwang IS, Jo BH. Engineering a Plant Viral Coat Protein for In Vitro Hybrid Self-Assembly of CO2-Capturing Catalytic Nanofilaments. Biomacromolecules 2020; 21:3847-3856. [DOI: 10.1021/acs.biomac.0c00925] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Suhan Wi
- Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Korea
| | - In Seong Hwang
- Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Korea
| | - Byung Hoon Jo
- Division of Life Science and Research Institute of Life Science, Gyeongsang National University, Jinju 52828, Korea
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22
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Immobilization of genetically engineered whole-cell biocatalysts with periplasmic carbonic anhydrase in polyurethane foam for enzymatic CO2 capture and utilization. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2020.101172] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Kim S, Joo KI, Jo BH, Cha HJ. Stability-Controllable Self-Immobilization of Carbonic Anhydrase Fused with a Silica-Binding Tag onto Diatom Biosilica for Enzymatic CO 2 Capture and Utilization. ACS APPLIED MATERIALS & INTERFACES 2020; 12:27055-27063. [PMID: 32460480 DOI: 10.1021/acsami.0c03804] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Exploiting carbonic anhydrase (CA), an enzyme that catalyzes the hydration of CO2, is a powerful route for eco-friendly and cost-effective carbon capture and utilization. For successful industrial applications, the stability and reusability of CA should be improved, which necessitates enzyme immobilization. Herein, the ribosomal protein L2 (Si-tag) from Escherichia coli was utilized for the immobilization of CA onto diatom biosilica, a promising renewable support material. The Si-tag was redesigned (L2NC) and genetically fused to CA from the marine bacterium Hydrogenovibrio marinus (hmCA). One-step self-immobilization of hmCA-L2NC onto diatom biosilica by simple mixing was successfully achieved via Si-tag-mediated strong binding, showing multilayer adsorption with a maximal loading of 1.4 wt %. The immobilized enzyme showed high reusability and no enzyme leakage even under high temperature conditions. The activity of hmCA-L2NC was inversely proportional to the enzyme loading, while the stability was directly proportional to the enzyme loading. This discovered activity-stability trade-off phenomenon could be attributed to macromolecular crowding on the highly dense surface of the enzyme-immobilized biosilica. Collectively, our system not only facilitates the stability-controllable self-immobilization of enzyme via Si-tag on a diatom biosilica support for the robust, facile, and green construction of stable biocatalysts, but is also a unique model for studying the macromolecular crowding effect on surface-immobilized enzymes.
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Affiliation(s)
- Suhyeok Kim
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Kye Il Joo
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Byung Hoon Jo
- Division of Life Science and Research Institute of Life Science, Gyeongsang National University, Jinju 52828, Korea
| | - Hyung Joon Cha
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 37673, Korea
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24
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Design of carbonic anhydrase with improved thermostability for CO2 capture via molecular simulations. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2020.01.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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25
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Rausis K, Ćwik A, Casanova I. Phase evolution during accelerated CO2 mineralization of brucite under concentrated CO2 and simulated flue gas conditions. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2019.12.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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26
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Jo BH, Hwang IS. Characterization and High-Level Periplasmic Expression of Thermostable α-Carbonic Anhydrase from Thermosulfurimonas Dismutans in Escherichia Coli for CO 2 Capture and Utilization. Int J Mol Sci 2019; 21:ijms21010103. [PMID: 31877855 PMCID: PMC6981361 DOI: 10.3390/ijms21010103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 12/18/2019] [Accepted: 12/19/2019] [Indexed: 01/26/2023] Open
Abstract
Carbonic anhydrase (CA) is a diffusion-controlled enzyme that rapidly catalyzes carbon dioxide (CO2) hydration. CA has been considered as a powerful and green catalyst for bioinspired CO2 capture and utilization (CCU). For successful industrial applications, it is necessary to expand the pool of thermostable CAs to meet the stability requirement under various operational conditions. In addition, high-level expression of thermostable CA is desirable for the economical production of the enzyme. In this study, a thermostable CA (tdCA) of Thermosulfurimonas dismutans isolated from a deep-sea hydrothermal vent was expressed in Escherichia coli and characterized in terms of expression level, solubility, activity and stability. tdCA showed higher solubility, activity, and stability compared to those of CA from Thermovibrio ammonificans, one of the most thermostable CAs, under low-salt aqueous conditions. tdCA was engineered for high-level expression by the introduction of a point mutation and periplasmic expression via the Sec-dependent pathway. The combined strategy resulted in a variant showing at least an 8.3-fold higher expression level compared to that of wild-type tdCA. The E. coli cells with the periplasmic tdCA variant were also investigated as an ultra-efficient whole-cell biocatalyst. The engineered bacterium displayed an 11.9-fold higher activity compared to that of the recently reported system with a halophilic CA. Collectively these results demonstrate that the highly expressed periplasmic tdCA variant, either in an isolated form or within a whole-cell platform, is a promising biocatalyst with high activity and stability for CCU applications.
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Affiliation(s)
- Byung Hoon Jo
- Division of Life Science and Research Institute of Life Science, Gyeongsang National University, Jinju 52828, Korea
- Correspondence: ; Tel.: +82-55-772-1321
| | - In Seong Hwang
- Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, Korea
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Biomineralization of Monohydrocalcite Induced by the Halophile Halomonas smyrnensis WMS‐3. MINERALS 2019. [DOI: 10.3390/min9100632] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The halophilic bacterium Halomonas smyrnensis from a modern salt lake used in experiments to induce biomineralization has resulted in the precipitation of monohydrocalcite and other carbonate minerals. In this study, a Halomonas smyrnensis WMS‐3 (GenBank:MH425323) strain was identified based on 16S rDNA homology comparison, and then cultured in mediums with 3% NaCl concentration to induce monohydrocalcite at different Mg/Ca molar ratios of 0, 2, 5, 7, and 9. The growth curve of WMS‐3 bacteria, pH values, NH4+ concentration, HCO3− and CO32− concentration, carbonic anhydrase (CA) activity, and the changes in Ca2+ and Mg2+ ion concentration were determined to further explore the extracellular biomineralization mechanism. Moreover, the nucleation mechanism of monohydrocalcite on extracellular polymeric substances (EPS) was analyzed through studying ultrathin slices of the WMS‐3 strain by High resolution transmission electron microscopy (HRTEM), Selected area election diffraction (SAED), Scanning transmission electron microscopy (STEM), and elemental mapping, besides this, amino acids in the EPS were also analyzed. The results show that pH increased to about 9.0 under the influence of ammonia and CA activity. The precipitation ratio (%, the ratio of the mass/volume concentration) of the Ca2+ ion was 64.32%, 62.20%, 60.22%, 59.57%, and 54.42% at Mg/Ca molar ratios of 0, 2, 5, 7, and 9, respectively, on the 21st day of the experiments, and 6.69%, 7.10%, 7.74%, 8.09% for the Mg2+ ion concentration at Mg/Ca molar ratios 2, 5, 7, and 9, respectively. The obtained minerals were calcite, Mg‐rich calcite, aragonite, and hydromagnesite, in addition to the monohydrocalcite, as identified by X-ray diffraction (XRD) analyses. Monohydrocalcite had higher crystallinity when the Mg/Ca ratio increased from 7 to 9; thus, the stability of monohydrocalcite increased, also proven by the thermogravimetry (TG), derivative thermogravimetry (DTG) and differential scanning calorimetry (DSC) analyses. The C=O and C–O–C organic functional groups present in/on the minerals analyzed by Fourier transform infrared spectroscopy (FTIR), the various morphologies and the existence of P and S determined by scanning electron microscope-energy dispersive spectrometer (SEM‐EDS), the relatively more negative stable carbon isotope values (−16.91‰ to −17.91‰) analyzed by a carbon isotope laser spectrometer, plus the typical surface chemistry by XPS, all support the biogenesis of these mineral precipitates. Moreover, Ca2+ ions were able to enter the bacterial cell to induce intracellular biomineralization. This study is useful to understand the mechanism of biomineralization further and may provide theoretical reference concerning the formation of monohydrocalcite in nature.
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28
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Jo BH, Moon H, Cha HJ. Engineering the genetic components of a whole‐cell catalyst for improved enzymatic CO
2
capture and utilization. Biotechnol Bioeng 2019; 117:39-48. [DOI: 10.1002/bit.27175] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 09/08/2019] [Accepted: 09/13/2019] [Indexed: 12/24/2022]
Affiliation(s)
- Byung Hoon Jo
- Division of Life Science and Research Institute of Life ScienceGyeongsang National UniversityJinju Korea
| | - Hyukjoon Moon
- School of Interdisciplinary Bioscience and BioengineeringPohang University of Science and TechnologyPohang Korea
| | - Hyung Joon Cha
- School of Interdisciplinary Bioscience and BioengineeringPohang University of Science and TechnologyPohang Korea
- Department of Chemical EngineeringPohang University of Science and TechnologyPohang Korea
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29
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Park D, Lee MS. Kinetic Study of CO 2 Hydration by Small-Molecule Catalysts with A Second Coordination Sphere that Mimic the Effect of the Thr-199 Residue of Carbonic Anhydrase. Biomimetics (Basel) 2019; 4:E66. [PMID: 31581538 PMCID: PMC6963681 DOI: 10.3390/biomimetics4040066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 09/11/2019] [Accepted: 09/27/2019] [Indexed: 02/06/2023] Open
Abstract
Zinc complexes were synthesized as catalysts that mimic the ability of carbonic anhydrase (CA) for the CO2 hydration reaction (H2O + CO2 → H+ + HCO3-). For these complexes, a tris(2-pyridylmethyl)amine (TPA) ligand mimicking only the active site, and a 6-((bis(pyridin-2-ylmethyl)amino)methyl)pyridin-2-ol (TPA-OH) ligand mimicking the hydrogen-bonding network of the secondary coordination sphere of CA were used. Potentiometric pH titration was used to determine the deprotonation ability of the Zn complexes, and their pKa values were found to be 8.0 and 6.8, respectively. Stopped-flow spectrophotometry was used to confirm the CO2 hydration rate. The rate constants were measured to be 648.4 and 730.6 M-1s-1, respectively. The low pKa value was attributed to the hydrogen-bonding network of the secondary coordination sphere of the catalyst that mimics the behavior of CA, and this was found to increase the CO2 hydration rate of the catalyst.
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Affiliation(s)
- DongKook Park
- Green Materials & Processes Group, Korea Institute of Industrial Technology (KITECH), 55, Jongga-ro, Jung-gu, Ulsan 44413, Korea.
| | - Man Sig Lee
- Green Materials & Processes Group, Korea Institute of Industrial Technology (KITECH), 55, Jongga-ro, Jung-gu, Ulsan 44413, Korea.
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30
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Lim HK, Kim DR, Hwang IT. Sequestration of CO2 into CaCO3 using Carbonic Anhydrase Immobilization on Functionalized Aluminum Oxide. APPL BIOCHEM MICRO+ 2019. [DOI: 10.1134/s0003683819040112] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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31
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Abstract
Mineral carbonation is considered to be the most stable mechanism for the sequestration of CO2. This study comprises a comparative review of the effect of ball milling on the CO2 uptake of ultramafic/mafic lithologies, which are the most promising rocks for the mineralization of CO2. Samples of dunite, pyroxenite, olivine basalt and of a dolerite quarry waste material were previously subjected to ball milling to produce ultrafine powders with enhanced CO2 uptake. The optimum milling conditions were determined through selective CO2 chemisorption followed by temperature-programmed desorption (TPD) experiments, revealing that the CO2 uptake of the studied lithologies can be substantially enhanced via mechanical activation. Here, all these data are compared, demonstrating that the behavior of each rock under the effect of ball milling is predominantly controlled by the mineralogical composition of the starting rock materials. The ball-milled rock with the highest CO2 uptake is the dunite, followed by the olivine basalt, the pyroxenite and the dolerite. The increased CO2 uptake after ball milling is mainly attributed to the reduction of particle size to the nanoscale range, thus creating more adsorption sites per gram basis, as well as to the structural disordering of the constituent silicate minerals.
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Zhang S, Du M, Shao P, Wang L, Ye J, Chen J, Chen J. Carbonic Anhydrase Enzyme-MOFs Composite with a Superior Catalytic Performance to Promote CO 2 Absorption into Tertiary Amine Solution. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:12708-12716. [PMID: 30345752 DOI: 10.1021/acs.est.8b04671] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Carbonic anhydrase (CA) enzyme-based absorption technology for CO2 capture has been intensively investigated. The main issue related to this novel technology is the activity and stability of the CA enzyme under the typical flue gas conditions. To address this issue, CA enzymes were embedded into zeolitic imidazolate framework (ZIF-L) nanoparticles to synthesize a novel CA/ZIF-L-1 composite. The composite exhibited a superior apparent catalytic activity (1.5 times higher) for CO2 absorption compared with their free counterparts, which was due to the synergistic enhancement of CO2 adsorption by support ZIF-L and enzymatic catalysis. The analyses of Fourier transform infrared spectroscopy and circular dichroism revealed that the CA enzyme's secondary structure was not significantly varied during the CA/ZIF-L-1 preparation, resulting in a high enzyme activity retention. Moreover, the CA/ZIF-L-1 possessed a high thermal stability and reusability due to the structural rigidity and confinement of ZIF-L scaffolds. Compared with the free enzyme, its thermal stability was improved by approximately 100% at 40 °C. After six cycles of reuse, CA/ZIF-L-1 still retained a relative activity of 134%. Therefore, the CA/ZIF-L-1 can be a good candidate to promote the CO2 capture in industrial application.
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Affiliation(s)
- Shihan Zhang
- College of Environment , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Mine Du
- College of Environment , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Peijing Shao
- College of Environment , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Lidong Wang
- School of Environmental Science and Engineering , North China Electric Power University , Baoding 071003 , China
| | - Jiexu Ye
- College of Environment , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Jun Chen
- College of Environment , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Jianmeng Chen
- College of Environment , Zhejiang University of Technology , Hangzhou 310014 , China
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Hu G, Smith KH, Wu Y, Mumford KA, Kentish SE, Stevens GW. Carbon dioxide capture by solvent absorption using amino acids: A review. Chin J Chem Eng 2018. [DOI: 10.1016/j.cjche.2018.08.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Yoshimoto M, Walde P. Immobilized carbonic anhydrase: preparation, characteristics and biotechnological applications. World J Microbiol Biotechnol 2018; 34:151. [PMID: 30259182 DOI: 10.1007/s11274-018-2536-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 09/18/2018] [Indexed: 12/15/2022]
Abstract
Carbonic anhydrase (CA) is an essential metalloenzyme in living systems for accelerating the hydration and dehydration of carbon dioxide. CA-catalyzed reactions can be applied in vitro for capturing industrially emitted gaseous carbon dioxide in aqueous solutions. To facilitate this type of practical application, the immobilization of CA on or inside solid or soft support materials is of great importance because the immobilization of enzymes in general offers the opportunity for enzyme recycling or long-term use in bioreactors. Moreover, the thermal/storage stability and reactivity of immobilized CA can be modulated through the physicochemical nature and structural characteristics of the support material used. This review focuses on (i) immobilization methods which have been applied so far, (ii) some of the characteristic features of immobilized forms of CA, and (iii) biotechnological applications of immobilized CA. The applications described not only include the CA-assisted capturing and sequestration of carbon dioxide, but also the CA-supported bioelectrochemical conversion of CO2 into organic molecules, and the detection of clinically important CA inhibitors. Furthermore, immobilized CA can be used in biomimetic materials synthesis involving cascade reactions, e.g. for bone regeneration based on calcium carbonate formation from urea with two consecutive reactions catalyzed by urease and CA.
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Affiliation(s)
- Makoto Yoshimoto
- Department of Applied Chemistry, Yamaguchi University, Tokiwadai 2-16-1, Ube, 755-8611, Japan.
| | - Peter Walde
- Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, 8093, Zurich, Switzerland
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Miller QRS, Schaef HT, Kaszuba JP, Qiu L, Bowden ME, McGrail BP. Tunable Manipulation of Mineral Carbonation Kinetics in Nanoscale Water Films via Citrate Additives. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:7138-7148. [PMID: 29874053 DOI: 10.1021/acs.est.8b00438] [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
We explored the influence of a model organic ligand on mineral carbonation in nanoscale interfacial water films by conducting five time-resolved in situ X-ray diffraction (XRD) experiments at 50 °C. Forsterite was exposed to water-saturated supercritical carbon dioxide (90 bar) that had been equilibrated with 0-0.5 m citrate (C6H5O7-3) solutions. The experimental results demonstrated that greater concentrations of citrate in the nanoscale interfacial water film promoted the precipitation of magnesite (MgCO3) relative to nesquehonite (MgCO3·3H2O). At the highest concentrations tested, magnesite nucleation and growth were inhibited, lowering the carbonation rate constant from 9.1 × 10-6 to 3.6 × 10-6 s-1. These impacts of citrate were due to partial dehydration of Mg2+(aq) and the adsorption of citrate onto nuclei and magnesite surfaces. This type of information may be used to predict and tailor subsurface mineralization rates and pathways.
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Affiliation(s)
- Quin R S Miller
- Department of Geology and Geophysics , University of Wyoming , 1000 E. University Avenue , Laramie , Wyoming 82071 , United States
| | - Herbert T Schaef
- Physical and Computational Sciences Directorate , Pacific Northwest National Laboratory , P.O. Box 999, MS K8-98, Richland , Washington 99352 , United States
| | - John P Kaszuba
- Department of Geology and Geophysics , University of Wyoming , 1000 E. University Avenue , Laramie , Wyoming 82071 , United States
- School of Energy Resources , University of Wyoming , 1000 E. University Avenue , Laramie , Wyoming 82071 , United States
| | - Lin Qiu
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Pudong Xinqu, Shanghai , China 201203
| | - Mark E Bowden
- Environmental Molecular Sciences Laboratory , Pacific Northwest National Laboratory , P.O. Box 999, MS K8-98, Richland , Washington 99352 , United States
| | - Bernard P McGrail
- Energy and Environment Directorate , Pacific Northwest National Laboratory , P.O. Box 999, MS K8-98, Richland , Washington 99352 , United States
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Kim HS, Hong SG, Woo KM, Teijeiro Seijas V, Kim S, Lee J, Kim J. Precipitation-Based Nanoscale Enzyme Reactor with Improved Loading, Stability, and Mass Transfer for Enzymatic CO2 Conversion and Utilization. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00606] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Han Sol Kim
- Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Sung-Gil Hong
- Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Kie Moon Woo
- Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Vanesa Teijeiro Seijas
- Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Seongbeen Kim
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, Kyungbuk 37673, Republic of Korea
| | - Jinwoo Lee
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, Kyungbuk 37673, Republic of Korea
| | - Jungbae Kim
- Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Republic of Korea
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The Carbonation of Wollastonite: A Model Reaction to Test Natural and Biomimetic Catalysts for Enhanced CO2 Sequestration. MINERALS 2018. [DOI: 10.3390/min8050209] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
One of the most promising strategies for the safe and permanent disposal of anthropogenic CO2 is its conversion into carbonate minerals via the carbonation of calcium and magnesium silicates. However, the mechanism of such a reaction is not well constrained, and its slow kinetics is a handicap for the implementation of silicate mineral carbonation as an effective method for CO2 capture and storage (CCS). Here, we studied the different steps of wollastonite (CaSiO3) carbonation (silicate dissolution → carbonate precipitation) as a model CCS system for the screening of natural and biomimetic catalysts for this reaction. Tested catalysts included carbonic anhydrase (CA), a natural enzyme that catalyzes the reversible hydration of CO2(aq), and biomimetic metal-organic frameworks (MOFs). Our results show that dissolution is the rate-limiting step for wollastonite carbonation. The overall reaction progresses anisotropically along different [hkl] directions via a pseudomorphic interface-coupled dissolution–precipitation mechanism, leading to partial passivation via secondary surface precipitation of amorphous silica and calcite, which in both cases is anisotropic (i.e., (hkl)-specific). CA accelerates the final carbonate precipitation step but hinders the overall carbonation of wollastonite. Remarkably, one of the tested Zr-based MOFs accelerates the dissolution of the silicate. The use of MOFs for enhanced silicate dissolution alone or in combination with other natural or biomimetic catalysts for accelerated carbonation could represent a potentially effective strategy for enhanced mineral CCS.
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Bhagat C, Dudhagara P, Tank S. Trends, application and future prospectives of microbial carbonic anhydrase mediated carbonation process for CCUS. J Appl Microbiol 2017; 124:316-335. [PMID: 28921830 DOI: 10.1111/jam.13589] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Revised: 06/17/2017] [Accepted: 09/06/2017] [Indexed: 12/21/2022]
Abstract
Growing industrialization and the desire for a better economy in countries has accelerated the emission of greenhouse gases (GHGs), by more than the buffering capacity of the earth's atmosphere. Among the various GHGs, carbon dioxide occupies the first position in the anthroposphere and has detrimental effects on the ecosystem. For decarbonization, several non-biological methods of carbon capture, utilization and storage (CCUS) have been in use for the past few decades, but they are suffering from narrow applicability. Recently, CO2 emission and its disposal related problems have encouraged the implementation of bioprocessing to achieve a zero waste economy for a sustainable environment. Microbial carbonic anhydrase (CA) catalyses reversible CO2 hydration and forms metal carbonates that mimic the natural phenomenon of weathering/carbonation and is gaining merit for CCUS. Thus, the diversity and specificity of CAs from different micro-organisms could be explored for CCUS. In the literature, more than 50 different microbial CAs have been explored for mineral carbonation. Further, microbial CAs can be engineered for the mineral carbonation process to develop new technology. CA driven carbonation is encouraging due to its large storage capacity and favourable chemistry, allowing site-specific sequestration and reusable product formation for other industries. Moreover, carbonation based CCUS holds five-fold more sequestration capacity over the next 100 years. Thus, it is an eco-friendly, feasible, viable option and believed to be the impending technology for CCUS. Here, we attempt to examine the distribution of various types of microbial CAs with their potential applications and future direction for carbon capture. Although there are few key challenges in bio-based technology, they need to be addressed in order to commercialize the technology.
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Affiliation(s)
- C Bhagat
- Department of Biosciences (UGC-SAP-DRS-II), Veer Narmad South Gujarat University, Surat, Gujarat, India
| | - P Dudhagara
- Department of Biosciences (UGC-SAP-DRS-II), Veer Narmad South Gujarat University, Surat, Gujarat, India
| | - S Tank
- Department of Biosciences (UGC-SAP-DRS-II), Veer Narmad South Gujarat University, Surat, Gujarat, India
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CO2 Absorption and Magnesium Carbonate Precipitation in MgCl2–NH3–NH4Cl Solutions: Implications for Carbon Capture and Storage. MINERALS 2017. [DOI: 10.3390/min7090172] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Bose H, Satyanarayana T. Microbial Carbonic Anhydrases in Biomimetic Carbon Sequestration for Mitigating Global Warming: Prospects and Perspectives. Front Microbiol 2017; 8:1615. [PMID: 28890712 PMCID: PMC5574912 DOI: 10.3389/fmicb.2017.01615] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 08/08/2017] [Indexed: 11/13/2022] Open
Abstract
All the leading cities in the world are slowly becoming inhospitable for human life with global warming playing havoc with the living conditions. Biomineralization of carbon dioxide using carbonic anhydrase (CA) is one of the most economical methods for mitigating global warming. The burning of fossil fuels results in the emission of large quantities of flue gas. The temperature of flue gas is quite high. Alkaline conditions are necessary for CaCO3 precipitation in the mineralization process. In order to use CAs for biomimetic carbon sequestration, thermo-alkali-stable CAs are, therefore, essential. CAs must be stable in the presence of various flue gas contaminants too. The extreme environments on earth harbor a variety of polyextremophilic microbes that are rich sources of thermo-alkali-stable CAs. CAs are the fastest among the known enzymes, which are of six basic types with no apparent sequence homology, thus represent an elegant example of convergent evolution. The current review focuses on the utility of thermo-alkali-stable CAs in biomineralization based strategies. A variety of roles that CAs play in various living organisms, the use of CA inhibitors as drug targets and strategies for overproduction of CAs to meet the demand are also briefly discussed.
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Zhang S, Lu Y. Surfactants Facilitating Carbonic Anhydrase Enzyme-Mediated CO 2 Absorption into a Carbonate Solution. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:8537-8543. [PMID: 28678480 DOI: 10.1021/acs.est.7b00711] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Carbonic anhydrase (CA) enzyme-mediated absorption processes are regarded as promising alternatives to the conventional amine-based process for CO2 capture because of their low energy penalty and low risk of causing secondary pollution. The activity and stability of the CA enzyme are crucial to reducing the equipment and operating costs of the enzyme-mediated process. This work investigated three cationic and nonionic surfactants to improve the activity and stability of a technical-grade CA enzyme in a 20 wt % potassium carbonate solution. Experimental results revealed that the impact of the surfactants on the CA enzyme depended on their properties. For example, the cationic surfactant significantly enhanced the activity of CA enzyme but adversely affected enzyme stability. However, in the presence of the cationic surfactant after 30 days at 50 °C, the activity of the CA enzyme still outperformed that of CA without added surfactant. The nonionic surfactant significantly improved enzyme stability. Furthermore, the addition of surfactants within a critical micelle concentration of 1.0 did not distinctly influence the gas-liquid mass transfer, indicating that surfactant-enzyme interaction was responsible for the observed variations in the activity and stability of the tested enzyme.
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Affiliation(s)
- Shihan Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology , Hangzhou 310014, China
- Illinois State Geological Survey, Prairie Research Institute, University of Illinois at Urbana-Champaign , Champaign, Illinois 61820, United States
| | - Yongqi Lu
- Illinois State Geological Survey, Prairie Research Institute, University of Illinois at Urbana-Champaign , Champaign, Illinois 61820, United States
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