1
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Zhu C, Hu C, Liu J, Chi Z, Jiao N. Integrating bicarbonate-based microalgal production with alkaline sewage for ocean negative carbon emissions. Trends Biotechnol 2024:S0167-7799(24)00178-1. [PMID: 39048412 DOI: 10.1016/j.tibtech.2024.06.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 06/24/2024] [Accepted: 06/28/2024] [Indexed: 07/27/2024]
Abstract
Using sewage (wastewater) for ocean alkalinity enhancement (OAE) has been considered as one promising ocean negative carbon emissions (ONCE) approach due to its high carbon sequestration efficiency and low environmental risk. To make this process more profitable and sustainable, this perspective proposes to integrate bicarbonate-based microalgal production and sewage alkalinity enhancement for ONCE. In this concept, the spent aqueous alkaline bicarbonate-based microalgal medium is cheap or even free for OAE, while the produced microalgae with high value-added compositions make this process more profitable. To make the proposed idea more efficient and sustainable, the prospects for its future development are also discussed in this opinion article. This perspective provides a novel and practical idea for achieving efficient carbon neutralization and high economic value simultaneously.
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Affiliation(s)
- Chenba Zhu
- Carbon Neutral Innovation Research Center, Xiamen University, Xiamen, 361005, China; Global Ocean Negative Carbon Emissions (ONCE) Program, Research Center for Ocean Negative Carbon Emissions, Xiamen, Fujian, 361000, China; Fujian Key Laboratory of Marine Carbon Sequestration, Xiamen University, Xiamen, 361005, China.
| | - Chen Hu
- Global Ocean Negative Carbon Emissions (ONCE) Program, Research Center for Ocean Negative Carbon Emissions, Xiamen, Fujian, 361000, China; College of the Environment and Ecology, Xiamen University, Xiamen, 361102, China
| | - Jihua Liu
- Global Ocean Negative Carbon Emissions (ONCE) Program, Research Center for Ocean Negative Carbon Emissions, Xiamen, Fujian, 361000, China; Institute of Marine Science and Technology, Shandong University, Qingdao, 266237, China
| | - Zhanyou Chi
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Nianzhi Jiao
- Carbon Neutral Innovation Research Center, Xiamen University, Xiamen, 361005, China; Global Ocean Negative Carbon Emissions (ONCE) Program, Research Center for Ocean Negative Carbon Emissions, Xiamen, Fujian, 361000, China; Fujian Key Laboratory of Marine Carbon Sequestration, Xiamen University, Xiamen, 361005, China.
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2
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Yang Y, Tang S, Chen JP. Carbon capture and utilization by algae with high concentration CO 2 or bicarbonate as carbon source. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 918:170325. [PMID: 38278265 DOI: 10.1016/j.scitotenv.2024.170325] [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: 07/28/2023] [Revised: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 01/28/2024]
Abstract
Algae plays a key role in carbon capture and utilization (CCU) as it can capture and use the atmospheric CO2 for conversion of value-added products. Concentrated CO2 is common in flue gas and provides opportunities for algae cultivation. The drawbacks are mass transfer limitation, poor CO2 dissolution, and challenges to reach optimal levels for algal growth at given flue gas levels. Bicarbonate is flexible to be used as carbon source and owns the potential to enhance the efficiency of biological carbon fixation by algae. The requirements of algae strains are more stringent. To improve the industrial scale-up of CCU, system optimization is of great importance. More novel algal strains that can grow rapidly under harsh environment and provide valuable bio-products should be developed for large-scale production. Algae-driven CCU is promising for achieving carbon-neutrality.
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Affiliation(s)
- Yi Yang
- Faculty of Arts and Sciences/ College of Education for the Future, Beijing Normal University, Zhuhai 519087, PR China; Department of Civil and Environmental Engineering, National University of Singapore, 10 Kent Ridge, Singapore.
| | - Shuo Tang
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, PR China
| | - J Paul Chen
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, PR China; Department of Civil and Environmental Engineering, National University of Singapore, 10 Kent Ridge, Singapore.
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3
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Klepacz-Smolka A, Shah MR, Jiang Y, Zhong Y, Chen P, Pietrzyk D, Szelag R, Ledakowicz S, Daroch M. Microalgae are not an umbrella solution for power industry waste abatement but could play a role in their valorization. Crit Rev Biotechnol 2023:1-29. [PMID: 38105487 DOI: 10.1080/07388551.2023.2284644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 10/03/2023] [Indexed: 12/19/2023]
Abstract
Microalgae have long been regarded as a promising solution for biological carbon abatement from the power industry, offering renewable biomass without competing for land or water resources used for food crops. In this study, we extensively examined the application of photosynthetic microorganisms for closing carbon, nitrogen, and micronutrient loops in the power industry. Subsequently, we explored the bottom-up integration of algal biorefineries into power industry waste streams for increased economic benefits and reduced environmental impacts. Analysis of the available data indicated that microalgae integration with the power industry is primarily performed using flue-gas-assisted cultivation. This approach allows for carbon sequestration typically below one gram per liter per day, too low to significantly impact carbon abatement at achievable scales of microalgae cultivation. Alternative approaches are also being explored. For example, soluble bicarbonate platforms allow for higher biomass productivity and temporary carbon storage. Meanwhile, the use of ashes and waste heat and thermophilic strains can result in lower cultivation costs and better control of cultivation conditions. These approaches offer further incremental improvement to microalgae-based carbon abatement systems in the power industry but are unlikely to be an umbrella solution for carbon reduction. Consequently, in the near term, microalgae-based carbon valorization systems are likely to be limited to niche applications involving the synthesis of high-value products. For microalgae to truly transform carbon abatement processes radical improvements in both biology and engineering approaches are urgently needed.
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Affiliation(s)
- Anna Klepacz-Smolka
- Faculty of Process Engineering and Environmental Protection, Technical University of Lodz, Lodz, Poland
| | - Mahfuzur R Shah
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Ying Jiang
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Yuqing Zhong
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Pengyu Chen
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Damian Pietrzyk
- Faculty of Process Engineering and Environmental Protection, Technical University of Lodz, Lodz, Poland
| | - Rafal Szelag
- Faculty of Process Engineering and Environmental Protection, Technical University of Lodz, Lodz, Poland
| | - Stanislaw Ledakowicz
- Faculty of Process Engineering and Environmental Protection, Technical University of Lodz, Lodz, Poland
| | - Maurycy Daroch
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, China
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4
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Cao TD, Snyder SW, Lin YI, Lin YJ, Negi S, Pan SY. Unraveling the Potential of Electrochemical pH-Swing Processes for Carbon Dioxide Capture and Utilization. Ind Eng Chem Res 2023; 62:20979-20995. [PMID: 38107749 PMCID: PMC10722509 DOI: 10.1021/acs.iecr.3c02183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 12/19/2023]
Abstract
Global warming, driven by the accumulation of anthropogenic greenhouse gases, particularly CO2, in the atmosphere, has garnered significant attention due to its detrimental environmental impacts. To combat this critical issue, the deployment of CO2 capture and utilization (CCU) strategies has been considered as one of the technology-based solutions, leading to extensive scientific and engineering research. Electrochemical pH-swing (EPS) processes offer a promising approach to diverse CCU pathways, such as the delivery of pure CO2 gas, the delivery of bicarbonate (e.g., for microalgae cultivation), and the formation of carbonate minerals. In this study, we discuss several CCU pathways using EPS and provide an in-depth analysis of its mechanisms and potential applications, outlining its limitations from both thermodynamic and kinetic standpoints. The EPS process has demonstrated remarkable capabilities, achieving a CO2 capture efficiency of over 90% and unlocking valuable opportunities for CCU applications. We also develop an initial techno-economic assessment and provide the perspectives and challenges for future development and deployment of EPS. This study sheds light on the integration of EPS with CCU, closing the carbon cycle by effectively utilizing the products generated through the process, such as carbonate minerals and bicarbonate solution. For instance, the bicarbonate product can serve as a viable feedstock for bicarbonate-based microalgae production systems, with the added benefit of reducing costs by 40-80% compared to traditional gaseous CO2 delivery approaches. By integration of electrochemical technologies with CCU methods, this study underscores the immense potential for mitigating CO2 emissions and advancing sustainable practices to combat global warming. This study not only addresses the urgent need for effective solutions but also paves the way for a greener and more sustainable future.
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Affiliation(s)
- Thanh
Ngoc-Dan Cao
- Department
of Bioenvironmental Systems Engineering, College of Bioresources and
Agriculture, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan ROC
| | - Seth W Snyder
- Energy
and Environment Science & Technology, Idaho National Laboratory, Idaho Falls 83415, Idaho United States
| | - Yu-I Lin
- Department
of Bioenvironmental Systems Engineering, College of Bioresources and
Agriculture, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan ROC
| | - Yupo J Lin
- Applied
Materials Division, Argonne National Laboratory, Lemont, Illinois 60439, United Statesa
| | - Suraj Negi
- Department
of Bioenvironmental Systems Engineering, College of Bioresources and
Agriculture, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan ROC
| | - Shu-Yuan Pan
- Department
of Bioenvironmental Systems Engineering, College of Bioresources and
Agriculture, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan ROC
- Agricultural
Net-Zero Carbon Technology and Management Innovation Research Center,
College of Bioresources and Agriculture, National Taiwan University, Taipei City, 10617 Taiwan, ROC
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5
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Gao S, Pittman K, Edmundson S, Huesemann M, Greer M, Louie W, Chen P, Nobles D, Benemann J, Crowe B. A newly isolated alkaliphilic cyanobacterium for biomass production with direct air CO2 capture. J CO2 UTIL 2023. [DOI: 10.1016/j.jcou.2023.102399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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6
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Sawant KR, Sarnaik AP, Savvashe P, Hajinajaf N, Poole P, Varman AM, Lali A, Pandit R. One cell-two wells bio-refinery: Demonstrating cyanobacterial chassis for co-production of heterologous and natural hydrocarbons. BIORESOURCE TECHNOLOGY 2022; 363:127921. [PMID: 36089131 DOI: 10.1016/j.biortech.2022.127921] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/04/2022] [Accepted: 09/05/2022] [Indexed: 06/15/2023]
Abstract
In order to improve the potential of cyanobacterial cell factories, Synechococcus sp. PCC7002 was engineered as 'one cell-two wells bio-refinery', for ethylene ('heterologous' hydrocarbon) and carotenoids ('natural' metabolites) production, and demonstrating its outdoor performance. Although the cultures showed better production outdoor, they experienced multiple collapses during scale-up. Hence, flux balance analysis was performed which predicted higher ethylene production with increase in carbon input under outdoor light conditions. Furthermore, FBA predicted that ethylene production will not increase beyond a threshold carbon input flux, owing to limitations on ribulose-1,5-bisphosphate regeneration. Hence, a bicarbonate-supplementation strategy was devised. Cultures grown outdoor at optimal bicarbonate concentration (20 g/L) resulted in improved growth (0.141/h) and ethylene productivity (1.88 mL/L.h) for > 10 days, with enhanced carotenoid titres (40.4 mg/L). In a 100 L air-lift photo-bioreactor; cultures exhibited efficient ethylene (2.464 mL/L.h) and biomass (0.3 g/L.d) productivities, and carotenoids titres (64.4 mg/L), establishing a significant step towards commercialization.
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Affiliation(s)
- Kaustubh R Sawant
- DBT-ICT Centre for Energy Biosciences, Institute of Chemical Technology, Matunga, Mumbai 400019, India
| | - Aditya P Sarnaik
- DBT-ICT Centre for Energy Biosciences, Institute of Chemical Technology, Matunga, Mumbai 400019, India; Chemical Engineering Department, School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA
| | - Prashant Savvashe
- DBT-ICT Centre for Energy Biosciences, Institute of Chemical Technology, Matunga, Mumbai 400019, India; Department of Chemical Engineering, Institute of Chemical Technology, Matunga, Mumbai 400019, India
| | - Nima Hajinajaf
- Chemical Engineering Department, School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA
| | - Parker Poole
- Chemical Engineering Department, School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA
| | - Arul M Varman
- Chemical Engineering Department, School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA
| | - Arvind Lali
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga, Mumbai 400019, India
| | - Reena Pandit
- DBT-ICT Centre for Energy Biosciences, Institute of Chemical Technology, Matunga, Mumbai 400019, India.
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7
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Muthukrishnan L. Bio‐engineering of microalgae: Challenges and future prospects toward industrial and environmental applications. J Basic Microbiol 2022; 62:310-329. [DOI: 10.1002/jobm.202100417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 12/28/2021] [Accepted: 01/08/2022] [Indexed: 01/29/2023]
Affiliation(s)
- Lakshmipathy Muthukrishnan
- Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals Saveetha Institute of Medical and Technical Sciences Chennai Tamil Nadu India
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8
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Sen U, Gurol MD. Carbon dioxide delivery and resulting biomass separation in microalgae cultivation using triethanolamine. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2021.1975134] [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: 10/20/2022]
Affiliation(s)
- Unal Sen
- Department of Environmental Engineering, Gebze Technical University, Kocaeli, Turkey
| | - Mirat D. Gurol
- Department of Environmental Engineering, Gebze Technical University, Kocaeli, Turkey
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9
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Singh SK, Kaur R, Rahman MA, Mishra M, Sundaram S. Evaluation of potent cyanobacteria species for UV-protecting compound synthesis using bicarbonate-based culture system. 3 Biotech 2021; 11:412. [PMID: 34476170 PMCID: PMC8364896 DOI: 10.1007/s13205-021-02945-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 07/27/2021] [Indexed: 10/20/2022] Open
Abstract
The present investigation evaluates the potential of three cyanobacteria species Anabaena cylindrica, Nostoc commune and Synechococcus BDUSM-13 for photo-protecting mycosporine-like amino acids (MAAs) synthesis using bicarbonate-based culture system. Current investigations witnessed noteworthy bicarbonate tolerance of all species (NaHCO3; 0.5, 1 and 2 g L- 1) in terms of their growth rate, chlorophyll content, biomass productivity and carbon fixation ability. Among all strains, Synechococcus BDUSM-13 showed maximum surge in specific growth rate (i.e. 0.72 day-1) at 1 g L-1, productivity (i.e. 0.92 ± 0.06 g day-1 L-1) and chlorophyll content (i.e. 0.09 g L-1) at 2 g day-1 L-1. Synechococcus cells were also has the 0.48 g dw-1 carbon content with highest CO2 fixation rate (i.e. 0.653 g.CO2 mL-1 day-1) at 2 g L-1. Though, they were not able to produce MAAs after long UV-B exposure (i.e. 24 and 48 h). A. cylindrica strain was the most competent species for the bicarbonate-based approach, produced UV-protecting iminomycosporine compound (i.e. shinorine, λ max at 334 ± 2 nm) along with carbon fixation (i.e. 0.49 g CO2 mL-1 day-1) at 2 g L-1 NaHCO3. This suggests the bicarbonate supplementation during cultivation is a promising strategy to increase cellular abundance, biomass productivity and carbon fixation in cyanobacteria. However, UV-B irradiation may cause species-specific differences in the MAAs synthesis to produce UV-protecting compounds.
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Affiliation(s)
- Shailendra Kumar Singh
- Centre of Biotechnology, Nehru Science Centre, University of Allahabad, Prayagraj, 211002 India
| | - Rupali Kaur
- Centre of Biotechnology, Nehru Science Centre, University of Allahabad, Prayagraj, 211002 India
| | - Md Akhlaqur Rahman
- Department of Biotechnology, S. S. Khanna Girls Degree College, Prayagraj, 211012 India
| | - Manjita Mishra
- Centre of Biotechnology, Nehru Science Centre, University of Allahabad, Prayagraj, 211002 India
| | - Shanthy Sundaram
- Centre of Biotechnology, Nehru Science Centre, University of Allahabad, Prayagraj, 211002 India
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10
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Utilisation of CO2 from Sodium Bicarbonate to Produce Chlorella vulgaris Biomass in Tubular Photobioreactors for Biofuel Purposes. SUSTAINABILITY 2021. [DOI: 10.3390/su13169118] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Microalgae are one of the most promising sources of renewable substrates used for energy purposes. Biomass and components accumulated in their cells can be used to produce a wide range of biofuels, but the profitability of their production is still not at a sufficient level. Significant costs are generated, i.a., during the cultivation of microalgae, and are connected with providing suitable culture conditions. This study aims to evaluate the possibility of using sodium bicarbonate as an inexpensive alternative CO2 source in the culture of Chlorella vulgaris, promoting not only the increase of microalgae biomass production but also lipid accumulation. The study was carried out at technical scale using 100 L photobioreactors. Gravimetric and spectrophotometric methods were used to evaluate biomass growth. Lipid content was determined using a mixture of chloroform and methanol according to the Blight and Dyer method, while the carbon content and CO2 fixation rate were measured according to the Walkley and Black method. In batch culture, even a small addition of bicarbonate resulted in a significant (p ≤ 0.05) increase in the amount of biomass, productivity and optical density compared to non-bicarbonate cultures. At 2.0 g∙L–1, biomass content was 572 ± 4 mg·L−1, the maximum productivity was 7.0 ± 1.0 mg·L–1·d–1, and the optical density was 0.181 ± 0.00. There was also an increase in the lipid content (26 ± 4%) and the carbon content in the biomass (1322 ± 0.062 g∙dw–1), as well as a higher rate of carbon dioxide fixation (0.925 ± 0.073 g·L–1·d–1). The cultivation of microalgae in enlarged scale photobioreactors provides a significant technological challenge. The obtained results can be useful to evaluate the efficiency of biomass and valuable cellular components production in closed systems realized at industrial scale.
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11
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Progress toward a bicarbonate-based microalgae production system. Trends Biotechnol 2021; 40:180-193. [PMID: 34325913 DOI: 10.1016/j.tibtech.2021.06.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 06/09/2021] [Accepted: 06/15/2021] [Indexed: 11/20/2022]
Abstract
Commercial applications of microalgae for biochemicals and fuels are hampered by their high production costs, and the use of conventional carbon supplies is a key reason. Bicarbonate has been proposed as an alternative carbon source due to its potential advantages in lower carbon supply costs, convenience for photobioreactor development, biomass harvesting, and labor and energy savings. We review recent progress in bicarbonate-based microalgae cultivation, which validated previous assumptions, suggested further advantages, and demonstrated potential to significantly reduce production cost. Future research should focus on improving production efficiency and reducing energy inputs, including optimizing photobioreactor design, comprehensive utilization of natural power, and automation in production systems.
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Zhang R, Wang J, Zhai X, Che J, Xiu Z, Chi Z. Carbonate assisted lipid extraction and biodiesel production from wet microalgal biomass and recycling waste carbonate for CO 2 supply in microalgae cultivation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 779:146445. [PMID: 34030268 DOI: 10.1016/j.scitotenv.2021.146445] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 03/07/2021] [Accepted: 03/07/2021] [Indexed: 06/12/2023]
Abstract
High cost of microalgal biofuel is caused by all the steps in current technology, including cultivation, harvesting, lipid extraction, biofuel processing and wastewater and waste treatment. This study aims to systematically reduce these costs with one integrated process, in which carbonate is used for cell rupture, lipid extraction and biodiesel processing, and then recycled for CO2 absorption and carbon supply for a new round of algae cultivation. To reach this goal, carbonate-heating treatment with N, N' - dibutylurea which can enhance cell disruption were used for cell-wall breaking of wet Neochloris oleoabundans (UTEX 1185) biomass. Lipid extraction was fulfilled with carbonate/ethanol aqueous two phase extraction method and residual carbonate with wastewater from bottom phase was recycled to absorb CO2 to generate bicarbonate for algal cultivation with fresh medium. Taking into comprehensive consideration of cell disruption efficiency, partition coefficient, and lipid recovery, the condition of cell disruption and lipid extraction was set at 90 °C, 100 min reaction time, 1:7.5 DBU:H2O (w/w) ratio, 1:3 Na2CO3:H2O (w/w) ratio, and 9% (w/wT) ethanol concentration. The results showed that carbonate-heating treatment of wet N. oleoabundans biomass resulted in up to 90.7% cell disruption efficiency. The lipid recovery rate in carbonate/ethanol system was up to 97.9%, and the final biodiesel production was 1.30 times of that with Soxhlet method. Utilization of the waste broth after CO2 absorption with the content of 4% (v/vT) in the medium for new batch of algae cultivation resulted in biomass concentration of 1.68 g/L. The corresponding total fatty acids production was 0.35 g/L, which was 1.63 fold of that with fresh medium. This study firstly proved the feasibility of using carbonate for lipid extraction and biodiesel production and recycle waste carbonate for carbon re-supply during algae cultivation.
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Affiliation(s)
- Ruolan Zhang
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China
| | - Jinghan Wang
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China; Dalian SEM Bioengineer and Biotech Co. Ltd., Dalian 116620, China
| | - Xiaoqian Zhai
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China
| | - Jian Che
- Dalian Xinyulong Marine Biological Seed Technology Co. Ltd., Dalian 116200, China
| | - Zhilong Xiu
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China
| | - Zhanyou Chi
- School of Bioengineering, Dalian University of Technology, Dalian 116024, China; Ningbo Institute of Dalian University of Technology, No.26 Yucai Road, Jiangbei District, 315016 Ningbo, China.
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13
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Capability of carbon fixation in bicarbonate-based and carbon dioxide-based systems by Scenedesmus acuminatus TH04. Biochem Eng J 2021. [DOI: 10.1016/j.bej.2020.107858] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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14
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Comparison of photosynthetic carbon fixation of Nannochloropsis oceanica cultivated with carbon suppliers: CO2, NaHCO3 and CH3OH. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2020.101235] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Slompo NDM, Quartaroli L, Fernandes TV, Silva GHRD, Daniel LA. Nutrient and pathogen removal from anaerobically treated black water by microalgae. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 268:110693. [PMID: 32510435 DOI: 10.1016/j.jenvman.2020.110693] [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] [Received: 11/28/2019] [Revised: 03/11/2020] [Accepted: 05/02/2020] [Indexed: 06/11/2023]
Abstract
The demand for systems that efficiently and sustainably recover value-added compounds and materials from waste streams is a major challenge. The use of wastewater as a source for recovery of carbon and nutrients is an attractive and sustainable alternative. In this study, anaerobically treated black water was treated in photobioreactors (PBRs) inoculated with Chlorella sorokiniana, and the process was investigated in terms of phosphorus and nitrogen removal, biomass growth, and the removal of pathogens. The consumption of bicarbonate (alkalinity) and acetate (volatile fatty acids) as carbon sources by microalgae was investigated. The average nutrient removal achieved was 66% for N and 74% for P. A high consumption of alkalinity (83%) and volatile organic acids (76%) was observed, which suggests that these compounds were used as a source of carbon. The biomass production was 73 mg L-1 day-1, with a mean biomass of 0.7 g L-1 at the end of the batch treatment. At the end of the experiments, a log removal/inactivation of 0.51 log for total coliforms and 2.73 log for Escherichia coli (E. coli) was observed. The configuration used, a flat-panel PBR operated in batch mode without CO2 supplementation, is a cost-effective and environmentally sustainable method for recovering of nutrients and production of algal biomass.
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Affiliation(s)
| | - Larissa Quartaroli
- Department of Environmental and Civil Engineering, São Paulo State University (UNESP), Bauru, São Paulo, Brazil.
| | | | | | - Luiz Antonio Daniel
- Department of Hydraulics and Sanitation, University of São Paulo (EESC-USP), São Carlos, São Paulo, Brazil.
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16
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Rapid and Positive Effect of Bicarbonate Addition on Growth and Photosynthetic Efficiency of the Green Microalgae Chlorella Sorokiniana (Chlorophyta, Trebouxiophyceae). APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10134515] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Bicarbonate ions are the primary source of inorganic carbon for autotrophic organisms living in aquatic environments. In the present study, we evaluated the short-term (hours) effects of sodium bicarbonate (NaHCO3) addition on the growth and photosynthetic efficiency of the green algae Chlorella sorokiniana (211/8k). Bicarbonate was added to nonaxenic cultures at concentrations of 1, 2, and 3 g L−1 leading to a significant increase in biomass especially at the highest salt concentration (3 g L−1) and also showing a bactericidal and bacteriostatic effect that helped to keep a reduced microbial load in the algal culture. Furthermore, bicarbonate stimulated the increase in cellular content of chlorophyll a, improving the photosynthetic performance of cells. Since microalgae of genus Chlorella spp. show great industrial potential for the production of biofuels, nutraceuticals, cosmetics, health, and dietary supplements and the use of bicarbonate as a source of inorganic carbon led to short-term responses in Chlorella sorokiniana, this method represents a valid alternative not only to the insufflation of carbon dioxide for the intensive cultures but also for the production of potentially bioactive compounds in a short period.
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Zhu C, Zhai X, Xi Y, Wang J, Kong F, Zhao Y, Chi Z. Efficient CO2 capture from the air for high microalgal biomass production by a bicarbonate Pool. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2019.12.023] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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18
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Song C, Qiu Y, Xie M, Liu J, Liu Q, Li S, Sun L, Wang K, Kansha Y. Novel Regeneration and Utilization Concept Using Rich Chemical Absorption Solvent As a Carbon Source for Microalgae Biomass Production. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b02134] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chunfeng Song
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China
| | - Yiting Qiu
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China
| | - Meilian Xie
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China
| | - Jie Liu
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China
| | - Qingling Liu
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China
| | - Shuhong Li
- State Key Laboratory of Food Nutrition and Safety, College of Food Engineering and Biotechnology, Tianjin University of Science & Technology, No. 29, No. 13 Ave., TEDA, Tianjin 300457, China
| | - Luchang Sun
- China Huadian Engineering Co., Ltd., Beijing 100160, China
| | - Kailiang Wang
- China Huadian Engineering Co., Ltd., Beijing 100160, China
| | - Yasuki Kansha
- Organization for Programs on Environmental Sciences, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan
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Buyel JF. Plant Molecular Farming - Integration and Exploitation of Side Streams to Achieve Sustainable Biomanufacturing. FRONTIERS IN PLANT SCIENCE 2019; 9:1893. [PMID: 30713542 PMCID: PMC6345721 DOI: 10.3389/fpls.2018.01893] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 12/06/2018] [Indexed: 05/22/2023]
Abstract
Plants have unique advantages over other systems such as mammalian cells for the production of valuable small molecules and proteins. The benefits cited most often include safety due to the absence of replicating human pathogens, simplicity because sterility is not required during production, scalability due to the potential for open-field cultivation with transgenic plants, and the speed of transient expression potentially providing gram quantities of product in less than 4 weeks. Initially there were also significant drawbacks, such as the need to clarify feed streams with a high particle burden and the large quantities of host cell proteins, but efficient clarification is now readily achieved. Several additional advantages have also emerged reflecting the fact that plants are essentially biodegradable, single-use bioreactors. This article will focus on the exploitation of this concept for the production of biopharmaceutical proteins, thus improving overall process economics. Specifically, we will discuss the single-use properties of plants, the sustainability of the production platform, and the commercial potential of different biomass side streams. We find that incorporating these side streams through rational process integration has the potential to more than double the revenue that can currently be achieved using plant-based production systems.
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Affiliation(s)
- Johannes F. Buyel
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Aachen, Germany
- Institute for Molecular Biotechnology, RWTH Aachen University, Aachen, Germany
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Zhu C, Zhai X, Jia J, Wang J, Han D, Li Y, Tang Y, Chi Z. Seawater desalination concentrate for cultivation of Dunaliella salina with floating photobioreactor to produce β-carotene. ALGAL RES 2018. [DOI: 10.1016/j.algal.2018.08.035] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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21
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Zhu C, Zhai X, Wang J, Han D, Li Y, Xi Y, Tang Y, Chi Z. Large-scale cultivation of Spirulina in a floating horizontal photobioreactor without aeration or an agitation device. Appl Microbiol Biotechnol 2018; 102:8979-8987. [PMID: 30056515 DOI: 10.1007/s00253-018-9258-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 07/09/2018] [Accepted: 07/13/2018] [Indexed: 12/16/2022]
Abstract
A low-cost floating photobioreactor (PBR) without the use of aeration and/or an agitation device, in which carbon was supplied in the form of bicarbonate and only wave energy was utilized for mixing, was developed in our previous study. Scaling up is a common challenge in the practical application of PBRs and has not yet been demonstrated for this new design. To fill this gap, cultivation of Spirulina platensis was conducted in this study. The results demonstrated that S. platensis had the highest productivity at 0.3 mol L-1 sodium bicarbonate, but the highest carbon utilization (104 ± 2.6%) was obtained at 0.1 mol L-1. Culture of Spirulina aerated with pure oxygen resulted in only minor inhibition of growth, indicating that its productivity will not be significantly reduced even if dissolved oxygen is accumulated to a high level due to intermittent mixing resulting from the use of wave energy. In cultivation using a floating horizontal photobioreactor at the 1.0 m2 scale, the highest biomass concentration of 2.24 ± 0.05 g L-1 was obtained with a culture depth of 5.0 cm and the highest biomass productivity of 18.9 g m-2 day-1 was obtained with a depth of 10.0 cm. This PBR was scaled up to 10 m2 (1000 L) with few challenges; biomass concentration and productivity during ocean testing were little different than those at the 1.0 m2 (100 L) scale. However, the larger PBR had an apparent carbon utilization efficiency of 45.0 ± 2.8%, significantly higher than the 39.4 ± 0.9% obtained at the 1 m2 scale. These results verified the ease of scaling up floating horizontal photobioreactors and showed their great potential in commercial applications.
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Affiliation(s)
- Chenba Zhu
- School of Life Science and Biotechnology, Dalian University of Technology, Dalian, 116024, China
| | - Xiaoqian Zhai
- School of Life Science and Biotechnology, Dalian University of Technology, Dalian, 116024, China
| | - Jinghan Wang
- School of Life Science and Biotechnology, Dalian University of Technology, Dalian, 116024, China
| | - Desen Han
- School of Life Science and Biotechnology, Dalian University of Technology, Dalian, 116024, China
| | - Yonghai Li
- School of Life Science and Biotechnology, Dalian University of Technology, Dalian, 116024, China
| | - Yimei Xi
- School of Life Science and Biotechnology, Dalian University of Technology, Dalian, 116024, China
| | - Yajie Tang
- Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Provincial Cooperative Innovation Center of Industrial Fermentation, Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan, 430068, China
| | - Zhanyou Chi
- School of Life Science and Biotechnology, Dalian University of Technology, Dalian, 116024, China.
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Zhu C, Zhang R, Cheng L, Chi Z. A recycling culture of Neochloris oleoabundans in a bicarbonate-based integrated carbon capture and algae production system with harvesting by auto-flocculation. BIOTECHNOLOGY FOR BIOFUELS 2018; 11:204. [PMID: 30061926 PMCID: PMC6058360 DOI: 10.1186/s13068-018-1197-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 07/06/2018] [Indexed: 06/01/2023]
Abstract
BACKGROUND A bicarbonate-based integrated carbon capture and algae production system (BICCAPS) uses carbonate to capture CO2 and produce bicarbonate for alkalihalophilic microalgal cultivation. In this process, carbonate is regenerated and re-used for CO2 capture. However, a practical example of a recycling culture to prove its feasibility is still absent. RESULTS To reach this goal, a recycling culture of Neochloris oleoabundans was created in this study. The effect of bicarbonate concentration on N. oleoabundans growth showed that the highest productivity was obtained at 0.3 mol L-1, but the highest apparent carbon utilization efficiency was obtained at 0.1 mol L-1. The harvest of algal biomass was tested with alkaline flocculation, which is induced by high pH due to bicarbonate consumption. The result showed that the maximum recovery rate of 97.7 ± 0.29% was reached with a supplement of 20 mM Ca2+. Compared with this, alkaline flocculation without Ca2+ also resulted in a high recovery rate of up to 9 7.4± 0.21% in culture with 0.7 mol L-1 bicarbonate. In recycling culture, the spent medium was bubbled with CO2 and re-used for algal culture. After eight times of recycling, biomass productivity in recycling culture with 0.1 and 0.3 mol L-1 bicarbonate was 0.24 and 0.39 g L-1 day-1, respectively, higher than the 0.20 and 0.30 g L-1 day-1 in the control. The apparent carbon utilization efficiencies achieved in these semi-continuous cultures with 0.1 mol L-1 bicarbonate were 242 ± 3.1 and 266 ± 11% for recycling and control culture, respectively, while those with 0.3 mol L-1 bicarbonate were 98 ± 0.78 and 87 ± 3.6%, respectively. CONCLUSIONS This study proved the feasibility of BICCAPS recycling culture with the first practical example. More importantly, the produced algal biomass can be harvested without any flocculant supplement. Thus, this process can reduce both culturing and harvesting costs in algal biomass production.
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Affiliation(s)
- Chenba Zhu
- School of Life Science and Biotechnology, Dalian University of Technology, Dalian, China
| | - Ruolan Zhang
- School of Life Science and Biotechnology, Dalian University of Technology, Dalian, China
| | - Longyan Cheng
- School of Life Science and Biotechnology, Dalian University of Technology, Dalian, China
| | - Zhanyou Chi
- School of Life Science and Biotechnology, Dalian University of Technology, Dalian, China
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Piiparinen J, Barth D, Eriksen NT, Teir S, Spilling K, Wiebe MG. Microalgal CO2 capture at extreme pH values. ALGAL RES 2018. [DOI: 10.1016/j.algal.2018.04.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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24
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Tang J, Jiang D, Luo Y, Liang Y, Li L, Shah MMR, Daroch M. Potential new genera of cyanobacterial strains isolated from thermal springs of western Sichuan, China. ALGAL RES 2018. [DOI: 10.1016/j.algal.2018.01.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Zhu H, Zhu C, Cheng L, Chi Z. Plastic bag as horizontal photobioreactor on rocking platform driven by water power for culture of alkalihalophilic cyanobacterium. BIORESOUR BIOPROCESS 2017. [DOI: 10.1186/s40643-017-0176-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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26
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Kim GY, Heo J, Kim HS, Han JI. Bicarbonate-based cultivation of Dunaliella salina for enhancing carbon utilization efficiency. BIORESOURCE TECHNOLOGY 2017; 237:72-77. [PMID: 28434788 DOI: 10.1016/j.biortech.2017.04.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 03/31/2017] [Accepted: 04/03/2017] [Indexed: 06/07/2023]
Abstract
In this study, bicarbonate was proposed as an alternative carbon source to overcome exceedingly low CO2 fixation efficiency of conventional microalgae cultivation system. 5gL-1 of sodium bicarbonate was found to well support the growth of Dunaliella salina, showing 2.84-fold higher specific growth rate than a bicarbonate-free control. This bicarbonate-fed cultivation also could yield biomass productivity similar to that of CO2-based system as long as pH was controlled. While the supplied CO2, because of its being a gas, was mostly lost and only 3.59% of it was used for biomass synthesis, bicarbonate was effectively incorporated into the biomass with 91.40% of carbon utilization efficiency. This study showed that the bicarbonate-based microalgae cultivation is indeed possible, and can even become a truly environment-friendly and workable approach, provided that a CO2 mineralization technology is concomitantly established.
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Affiliation(s)
- Ga-Yeong Kim
- Department of Civil and Environmental Engineering, KAIST, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - Jina Heo
- Cell Factory Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea; Biotechnology, University of Science and Technology (UST), Daejeon 305-350, Republic of Korea
| | - Hee-Sik Kim
- Cell Factory Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea; Biotechnology, University of Science and Technology (UST), Daejeon 305-350, Republic of Korea
| | - Jong-In Han
- Department of Civil and Environmental Engineering, KAIST, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea.
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Zhu Z, Luan G, Tan X, Zhang H, Lu X. Rescuing ethanol photosynthetic production of cyanobacteria in non-sterilized outdoor cultivations with a bicarbonate-based pH-rising strategy. BIOTECHNOLOGY FOR BIOFUELS 2017; 10:93. [PMID: 28416967 PMCID: PMC5391583 DOI: 10.1186/s13068-017-0765-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 03/18/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Ethanol photosynthetic production based on cyanobacteria cell factories utilizing CO2 and solar energy provides an attractive solution for sustainable production of green fuels. However, the scaling up processes of cyanobacteria cell factories were usually threatened or even devastated by biocontaminations, which restricted biomass or products accumulations of cyanobacteria cells. Thus it is of great significance to develop reliable biocontamination-controlling strategies for promoting ethanol photosynthetic production in large scales. RESULTS The scaling up process of a previously developed Synechocystis strain Syn-HZ24 for ethanol synthesis was severely inhibited and devastated by a specific contaminant, Pannonibacter phragmitetus, which overcame the growths of cyanobacteria cells and completely consumed the ethanol accumulation in the cultivation systems. Physiological analysis revealed that growths and ethanol-consuming activities of the contaminant were sensitive to alkaline conditions, while ethanol-synthesizing cyanobacteria strain Syn-HZ24 could tolerate alkaline pH conditions as high as 11.0, indicating that pH-increasing strategy might be a feasible approach for rescuing ethanol photosynthetic production in outdoor cultivation systems. Thus, we designed and evaluated a Bicarbonate-based Integrated Carbon Capture System (BICCS) derived pH-rising strategy to rescue the ethanol photosynthetic production in non-sterilized conditions. In lab scale artificially simulated systems, pH values of BG11 culture medium were maintained around 11.0 by 180 mM NaHCO3 and air steam, under which the infection of Pannonibacter phragmitetus was significantly restricted, recovering ethanol production of Syn-HZ24 by about 80%. As for outdoor cultivations, ethanol photosynthetic production of Syn-HZ24 was also successfully rescued by the BICCS-derived pH-rising strategy, obtaining a final ethanol concentration of 0.9 g/L after 10 days cultivation. CONCLUSIONS In this work, a novel product-consuming biocontamination pattern in cyanobacteria cultivations, causing devastated ethanol photosynthetic production, was identified and characterized. Physiological analysis of the essential ethanol-consuming contaminant directed the design and application of a pH-rising strategy, which effectively and selectively controlled the contamination and rescued ethanol photosynthetic production. Our work demonstrated the importance of reliable contamination control systems and strategies for large scale outdoor cultivations of cyanobacteria, and provided an inspiring paradigm for targeting effective solutions.
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Affiliation(s)
- Zhi Zhu
- Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao, 266101 China
- Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao, 266101 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Guodong Luan
- Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao, 266101 China
- Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao, 266101 China
| | - Xiaoming Tan
- Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao, 266101 China
- Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao, 266101 China
| | - Haocui Zhang
- Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao, 266101 China
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072 China
| | - Xuefeng Lu
- Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao, 266101 China
- Shandong Provincial Key Laboratory of Synthetic Biology, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao, 266101 China
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28
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Sharp CE, Urschel S, Dong X, Brady AL, Slater GF, Strous M. Robust, high-productivity phototrophic carbon capture at high pH and alkalinity using natural microbial communities. BIOTECHNOLOGY FOR BIOFUELS 2017; 10:84. [PMID: 28367229 PMCID: PMC5372337 DOI: 10.1186/s13068-017-0769-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 03/22/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Bioenergy with carbon capture and storage (BECCS) has come to be seen as one of the most viable technologies to provide the negative carbon dioxide emissions needed to constrain global temperatures. In practice, algal biotechnology is the only form of BECCS that could be realized at scale without compromising food production. Current axenic algae cultivation systems lack robustness, are expensive and generally have marginal energy returns. RESULTS Here it is shown that microbial communities sampled from alkaline soda lakes, grown as biofilms at high pH (up to 10) and high alkalinity (up to 0.5 kmol m-3 NaHCO3 and NaCO3) display excellent (>1.0 kg m-3 day-1) and robust (>80 days) biomass productivity, at low projected overall costs. The most productive biofilms contained >100 different species and were dominated by a cyanobacterium closely related to Phormidium kuetzingianum (>60%). CONCLUSION Frequent harvesting and red light were the key factors that governed the assembly of a stable and productive microbial community.
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Affiliation(s)
- Christine E. Sharp
- Department of Geosciences, University of Calgary, 2500 University Drive NW, EEEL 509, Calgary, AB T2N 1N4 Canada
| | - Sydney Urschel
- Department of Geosciences, University of Calgary, 2500 University Drive NW, EEEL 509, Calgary, AB T2N 1N4 Canada
| | - Xiaoli Dong
- Department of Geosciences, University of Calgary, 2500 University Drive NW, EEEL 509, Calgary, AB T2N 1N4 Canada
| | - Allyson L. Brady
- School of Geography and Earth Science, McMaster University, Hamilton, ON Canada
| | - Greg F. Slater
- School of Geography and Earth Science, McMaster University, Hamilton, ON Canada
| | - Marc Strous
- Department of Geosciences, University of Calgary, 2500 University Drive NW, EEEL 509, Calgary, AB T2N 1N4 Canada
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Wang JH, Zhang TY, Dao GH, Xu XQ, Wang XX, Hu HY. Microalgae-based advanced municipal wastewater treatment for reuse in water bodies. Appl Microbiol Biotechnol 2017; 101:2659-2675. [PMID: 28213735 DOI: 10.1007/s00253-017-8184-x] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Revised: 02/04/2017] [Accepted: 02/06/2017] [Indexed: 12/22/2022]
Abstract
Reuse of secondary municipal effluent from wastewater treatment plants in water bodies could effectively alleviate freshwater resource shortage. However, excessive nutrients must be efficiently removed to prevent eutrophication. Compared with other means of advanced wastewater treatment, microalgae-based processes display overwhelming advantages including efficient and simultaneous N and P removal, no requirement of additional chemicals, O2 generation, CO2 mitigation, and potential value-added products from harvested biomass. One particular challenge of microalgae-based advanced municipal wastewater treatment compared to treatment of other types of wastewater is that concentrations of nutrients and N:P ratios in secondary municipal effluent are much lower and imbalanced. Therefore, there should be comprehensive considerations on nutrient removal from this specific type of effluent. Removal of nutrients and organic substances, and other environmental benefits of microalgae-based advanced municipal wastewater treatment systems were summarized. Among the existing studies on microalgal advanced nutrient removal, much information on major parameters is absent, rendering performances between studies not really comparable. Mechanisms of microalgae-based nitrogen and phosphorus removal were respectively analyzed to better understand advanced nutrient removal from municipal secondary effluent. Factors influencing microalgae-based nutrient removal were divided into intrinsic, environmental, and operational categories; several factors were identified in each category, and their influences on microalgal nutrient removal were discussed. A multiplicative kinetic model was integrated to estimate microalgal growth-related nutrient removal based majorly on environmental and intrinsic factors. Limitations and prospects of future full-scale microalgae-based advanced municipal wastewater treatment were also suggested. The manuscript could offer much valuable information for future studies on microalgae-based advanced wastewater treatment and water reuse.
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Affiliation(s)
- Jing-Han Wang
- Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Tian-Yuan Zhang
- Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Guo-Hua Dao
- Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Xue-Qiao Xu
- Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Xiao-Xiong Wang
- Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Hong -Ying Hu
- Environmental Simulation and Pollution Control State Key Joint Laboratory, State Environmental Protection Key Laboratory of Microorganism Application and Risk Control (SMARC), School of Environment, Tsinghua University, Beijing, 100084, People's Republic of China. .,Shenzhen Environmental Science and New Energy Technology Engineering Laboratory, Tsinghua-Berkeley Shenzhen Institute, Shenzhen, 518055, People's Republic of China.
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Du W, Jongbloets JA, Pineda Hernández H, Bruggeman FJ, Hellingwerf KJ, Branco dos Santos F. Photonfluxostat: A method for light-limited batch cultivation of cyanobacteria at different, yet constant, growth rates. ALGAL RES 2016. [DOI: 10.1016/j.algal.2016.10.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Thomas DM, Mechery J, Paulose SV. Carbon dioxide capture strategies from flue gas using microalgae: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:16926-16940. [PMID: 27397026 DOI: 10.1007/s11356-016-7158-3] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Accepted: 06/28/2016] [Indexed: 06/06/2023]
Abstract
Global warming and pollution are the twin crises experienced globally. Biological offset of these crises are gaining importance because of its zero waste production and the ability of the organisms to thrive under extreme or polluted condition. In this context, this review highlights the recent developments in carbon dioxide (CO2) capture from flue gas using microalgae and finding the best microalgal remediation strategy through contrast and comparison of different strategies. Different flue gas microalgal remediation strategies discussed are as follows: (i) Flue gas to CO2 gas segregation using adsorbents for microalgal mitigation, (ii) CO2 separation from flue gas using absorbents and later regeneration for microalgal mitigation, (iii) Flue gas to liquid conversion for direct microalgal mitigation, and (iv) direct flue gas mitigation using microalgae. This work also studies the economic feasibility of microalgal production. The study discloses that the direct convening of flue gas with high carbon dioxide content, into microalgal system is cost-effective.
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Affiliation(s)
- Daniya M Thomas
- School of Environmental Sciences, Mahatma Gandhi University, PD Hills P.O., Kottayam, Kerala, 686 560, India.
| | - Jerry Mechery
- School of Environmental Sciences, Mahatma Gandhi University, PD Hills P.O., Kottayam, Kerala, 686 560, India
| | - Sylas V Paulose
- School of Environmental Sciences, Mahatma Gandhi University, PD Hills P.O., Kottayam, Kerala, 686 560, India
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Canon-Rubio KA, Sharp CE, Bergerson J, Strous M, De la Hoz Siegler H. Use of highly alkaline conditions to improve cost-effectiveness of algal biotechnology. Appl Microbiol Biotechnol 2015; 100:1611-1622. [DOI: 10.1007/s00253-015-7208-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Revised: 11/24/2015] [Accepted: 11/28/2015] [Indexed: 11/30/2022]
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Srinivasan R, Kumar VA, Kumar D, Ramesh N, Babu S, Gothandam KM. Effect of Dissolved Inorganic Carbon on β-Carotene and Fatty Acid Production in Dunaliella sp. Appl Biochem Biotechnol 2015; 175:2895-906. [DOI: 10.1007/s12010-014-1461-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Accepted: 12/21/2014] [Indexed: 11/24/2022]
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