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Chen X, Khatiwada JR, Chio C, Shrestha S, Kognou ALM, Fan L, Qin W. Low-cost cultivation of Nannochloropsis oceanica in newly designed photobioreactors and its productivity trends in semi-continuous cultivation under inland outdoor conditions. BIORESOURCE TECHNOLOGY 2024; 402:130829. [PMID: 38734261 DOI: 10.1016/j.biortech.2024.130829] [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: 02/06/2024] [Revised: 05/08/2024] [Accepted: 05/08/2024] [Indexed: 05/13/2024]
Abstract
Most marine microalgae are typically cultivated in coastal areas due to challenges in inland cultivation. In this 185 days experiment, Nannochloropsis oceanica was semi-continuously cultivated inland using different photobioreactors (PBRs). The newly designed 700-liter (L) PBR exhibited tolerance to seasonal changes compared to the 150-L PBRs. The innovative in-situ oxygen release rate (ORR) measurement method results indicated that ORR was influenced by light intensity and temperature. The optimal temperature range for N. oceanica growth was 14-25 ℃, demonstrated cold tolerance and lipid accumulation at low temperatures. The maximum lipid content in 700-L and 150-L PBRs was 29 % and 28 %, respectively. Based on the average biomass productivity, the price of N. oceanica was $11.89 kg-1 (or $3.35 kg-1 based on maximum biomass productivity), which is cheaper than the current market price of $20.19 kg-1. From results, smaller PBRs at the same hydro electricity price are more cost-effective.
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Affiliation(s)
- Xuantong Chen
- Department of Biology, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada
| | - Janak Raj Khatiwada
- Department of Biology, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada
| | - Chonlong Chio
- Department of Biology, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada
| | - Sarita Shrestha
- Department of Biology, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada
| | | | - Lu Fan
- School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China
| | - Wensheng Qin
- Department of Biology, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario P7B 5E1, Canada.
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2
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Yang Y, Zhou T, Cheng M, Xie M, Shi N, Liu T, Huang Z, Zhao Y, Huang Q, Liu Z, Li B. Recent advances in organic waste pyrolysis and gasification in a CO 2 environment to value-added products. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 356:120666. [PMID: 38490005 DOI: 10.1016/j.jenvman.2024.120666] [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: 02/01/2024] [Revised: 03/04/2024] [Accepted: 03/11/2024] [Indexed: 03/17/2024]
Abstract
The persistent combustion of fossil fuels has resulted in a widespread greenhouse effect attributable to the continual elevation of carbon dioxide (CO2) levels in the atmosphere. Recent research indicates that utilizing CO2 as a pyrolysis gasification medium diminishes CO2 emissions and concurrently augments the value of the resultant pyrolysis gasification products. This paper reviews recent advancements in the pyrolysis gasification of organic solid wastes under a CO2 atmosphere. Meanwhile, the mechanisms of CO2 influence in the pyrolysis and gasification processes were also discussed. In comparison to noble gases, CO2 exhibits reactivity with char at≥710 °C, resulting in additional mass loss of the sample. In addition, CO2 was able to increase the specific surface area and stability of biochar and reduce biooil toxicity by lowering the content of cyclic compounds in the biooil, while CO2 was able to react with GPRs with some volatile products (e.g., light hydrocarbons) to increase biogas yield. Finally, CO2 also prevents catalyst deactivation by reducing secondary coke formation. We also recommend directing future attention toward utilizing unpurified CO2 in pyrolysis and gasification. This review aims to expand the utilization of CO2 and advocate for applying pyrolysis gasification products.
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Affiliation(s)
- Yanyu Yang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China.
| | - Tao Zhou
- The State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
| | - Mingqian Cheng
- Yunnan Land Resources Vocational College, Kunming 652501, China.
| | - Ming Xie
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China.
| | - Nan Shi
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China.
| | - Tingting Liu
- State Environmental Protection Key Laboratory of Hazardous Waste Identification and Risk Control, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Zechun Huang
- State Environmental Protection Key Laboratory of Hazardous Waste Identification and Risk Control, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Youcai Zhao
- The State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
| | - Qifei Huang
- State Environmental Protection Key Laboratory of Hazardous Waste Identification and Risk Control, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Zewei Liu
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; State Environmental Protection Key Laboratory of Hazardous Waste Identification and Risk Control, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
| | - Bin Li
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China.
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3
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Li Y, Lin R, O'Shea R, Thaore V, Wall D, Murphy JD. A perspective on three sustainable hydrogen production technologies with a focus on technology readiness level, cost of production and life cycle environmental impacts. Heliyon 2024; 10:e26637. [PMID: 38444498 PMCID: PMC10912280 DOI: 10.1016/j.heliyon.2024.e26637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 02/06/2024] [Accepted: 02/16/2024] [Indexed: 03/07/2024] Open
Abstract
Hydrogen will play an indispensable role as both an energy vector and as a molecule in essential products in the transition to climate neutrality. However, the optimal sustainable hydrogen production system is not definitive due to challenges in energy conversion efficiency, economic cost, and associated marginal abatement cost. This review summarises and contrasts different sustainable hydrogen production technologies including for their development, potential for improvement, barriers to large-scale industrial application, capital and operating cost, and life-cycle environmental impact. Polymer electrolyte membrane water electrolysis technology shows significant potential for large-scale application in the near-term, with a higher technology readiness level (expected to be 9 by 2030) and a levelized cost of hydrogen expected to be 4.15-6 €/kg H2 in 2030; this equates to a 50% decrease as compared to 2020. The four-step copper-chlorine (Cu-Cl) water thermochemical cycle can perform better in terms of life cycle environmental impact than the three- and five-step Cu-Cl cycle, however, due to system complexity and high capital expenditure, the thermochemical cycle is more suitable for long-term application should the technology develop. Biological conversion technologies (such as photo/dark fermentation) are at a lower technology readiness level, and the system efficiency of some of these pathways such as biophotolysis is low (less than 10%). Biomass gasification may be a more mature technology than some biological conversion pathways owing to its higher system efficiency (40%-50%). Biological conversion systems also have higher costs and as such require significant development to be comparable to hydrogen produced via electrolysis.
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Affiliation(s)
- Yunfei Li
- MaREI Centre for Energy Climate and Marine, Environmental Research Institute, University College Cork, Cork, T23 XE10, Ireland
- Civil, Structural and Environmental Engineering, School of Engineering and Architecture, University College Cork, Cork, T12 YN60, Ireland
| | - Richen Lin
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 210096, China
- Civil, Structural and Environmental Engineering, School of Engineering and Architecture, University College Cork, Cork, T12 YN60, Ireland
| | - Richard O'Shea
- MaREI Centre for Energy Climate and Marine, Environmental Research Institute, University College Cork, Cork, T23 XE10, Ireland
- Civil, Structural and Environmental Engineering, School of Engineering and Architecture, University College Cork, Cork, T12 YN60, Ireland
| | - Vaishali Thaore
- MaREI Centre for Energy Climate and Marine, Environmental Research Institute, University College Cork, Cork, T23 XE10, Ireland
- Civil, Structural and Environmental Engineering, School of Engineering and Architecture, University College Cork, Cork, T12 YN60, Ireland
| | - David Wall
- MaREI Centre for Energy Climate and Marine, Environmental Research Institute, University College Cork, Cork, T23 XE10, Ireland
- Civil, Structural and Environmental Engineering, School of Engineering and Architecture, University College Cork, Cork, T12 YN60, Ireland
| | - Jerry D. Murphy
- MaREI Centre for Energy Climate and Marine, Environmental Research Institute, University College Cork, Cork, T23 XE10, Ireland
- Civil, Structural and Environmental Engineering, School of Engineering and Architecture, University College Cork, Cork, T12 YN60, Ireland
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Rifna EJ, Rajauria G, Dwivedi M, Tiwari BK. Circular economy approaches for the production of high-value polysaccharides from microalgal biomass grown on industrial fish processing wastewater: A review. Int J Biol Macromol 2024; 254:126887. [PMID: 37709230 DOI: 10.1016/j.ijbiomac.2023.126887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 07/19/2023] [Accepted: 09/11/2023] [Indexed: 09/16/2023]
Abstract
The discharge of high-strength wastewater from the fish-processing industries, comprising undefined blends of toxic and organic compounds, has always been a subject of great disquiet worldwide. Despite a large number of effluent treatment methodologies known to date, biosorption with the aid of naturally grown microalgae has been recognized recently to possess promising outcomes in eradicating pollutants comprising organic compounds from liquid effluents. Interestingly, the microalgal biomass harvested from phytoremediation of fish effluent was identified to be abundant in bio compounds that exhibited potential application in pharmaceutical, nutraceutical, and, aquaculture feed, generating a circular economy. In this context, the focus of the review is to emphasize the applications of microalgal species as naturally occurring and zero-cost adsorbents for the elimination of organic contaminants from fish liquid effluents. The summary of the literature encompassed in this work is supposed to benefit the readers to comprehend the primary mechanisms by which microalgae uptakes the organic matter from fish processing effluents and converts them into various biological molecules. From the scientific works assessed through this review, the most promising microalgae species regards to nutrient uptake and removal efficiency from fish effluent, were identified as Chlorella sp. > Spirulina sp. > Scenedesmus sp. The review further revealed supercritical fluid extraction as the robust extraction tool for the extraction of targeted bioproducts from microalgal biomass grown within fish effluents. Eventually, the information presented through this review establishes phytoremediation using microalgal biomass to be a natural cost-effective, sustainable circular bio-economy approach that could be robustly applied for the efficient treatment of wastewater discharged from food processing industries.
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Affiliation(s)
- E J Rifna
- Teagasc Food Research Centre, Department of Food Chemistry and Technology, Ashtown D15 KN3K, Dublin, Ireland
| | - Gaurav Rajauria
- Department of Biological and Pharmaceutical Sciences, Munster Technological University, Tralee V92 CX88, Co. Kerry, Ireland; School of Microbiology, School of Food and Nutritional Sciences, SUSFERM Fermentation Science and Bioprocess Engineering Centre, University College Cork, Cork, Ireland.
| | - Madhuresh Dwivedi
- Department of Food Process Engineering, National Institute of Technology Rourkela, Odisha, India
| | - Brijesh K Tiwari
- Teagasc Food Research Centre, Department of Food Chemistry and Technology, Ashtown D15 KN3K, Dublin, Ireland.
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Zhao Y, Li H, Hu D. Performance experiments with a gas wave ejector equipped with curved channels and an analysis of the influence of channel angles. RSC Adv 2022; 12:17294-17311. [PMID: 35765432 PMCID: PMC9201429 DOI: 10.1039/d2ra02577a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 05/29/2022] [Indexed: 11/02/2022] Open
Abstract
Gas wave ejectors (GWEs) utilize pressure waves to efficiently transfer energy between gases, and they have broad applications in the chemical industry. In order to improve the performance of GWEs, the influence of bending angles on GWE performance was studied and experiments involving a GWE equipped with curved channels were carried out for the first time in this study. The research results show that when the exhaust angle difference (φ dout) is ≤-3.9° and the incident angle difference (φ din) is >5.0° or ≤-5.0°, the equipment performance decreases with an increase in the absolute values of the angle differences. The maximum efficiency of the backward-curved-channel device is 61.6% within the experimental range. The experimental efficiency of the curved-channel device and the static-pressure proportion of the total pressure of the medium-pressure gas are enhanced in comparison with a traditional straight-channel device, and the operating power consumption is relatively reduced. Due to the difference between the gas incident and exhaust angles, the manner in which the performance of the curved-channel device varies with the rotation speed is different depending on the working conditions.
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Affiliation(s)
- Yiming Zhao
- Department of Chemical Machinery, Dalian University of Technology Dalian 116012 China
| | - Haoran Li
- Department of Chemical Machinery, Dalian University of Technology Dalian 116012 China
| | - Dapeng Hu
- Department of Chemical Machinery, Dalian University of Technology Dalian 116012 China
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6
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El-Naggar NEA, Hamouda RA, Abou-El-Souod GW. Statistical optimization for simultaneous removal of methyl red and production of fatty acid methyl esters using fresh alga Scenedesmus obliquus. Sci Rep 2022; 12:7156. [PMID: 35504903 PMCID: PMC9065141 DOI: 10.1038/s41598-022-11069-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 04/08/2022] [Indexed: 11/08/2022] Open
Abstract
Microalgae are a diverse group of microorganisms, the majority of which are photosynthetic in nature. Microalgae have different applications, the most important of which is the biological treatment of wastewater. Microalgae grow in various types of wastewater, such as wastewater polluted by Azo dyes, due to microalgae using wastewater as a culture medium, which contains many nutrients like nitrogen, phosphate, and carbon sources. Microalgae grow in various types of wastewater, such as wastewater polluted by Azo dyes, due to microalgae using wastewater as a culture medium, which contains many nutrients like nitrogen, phosphate, and carbon sources. So, microalgae are used for bioremediation of wastewater due to the efficiency of growing in wastewater and for the high production of lipids followed by trans-esterification to biodiesel. Face-centered central composite design (FCCCD) was used to determine the factors that have the most significant impact on the simultaneous decolorization of methyl red and lipid production by the fresh green alga Scenedesmus obliquus. The predicted results indicated that the alga decolorized 70.15% methyl red and produced 20.91% lipids by using 1 g/L nitrogen, an incubation time of 10 days, a pH of 8, and the concentration of methyl red is 17.65 mg/L. The dry biomasses of S. obliquus were also examined by SEM and FTIR before and after treatment with methyl red. SEM and FTIR showed that the properties of dry S. obliquus were altered after the biosorption of methyl red. According to GC-MS analysis of hexane extracts of S. obliquus, the lipid profile differed before and after methyl red decolorization. The results proved that it is possible to use S. obliquus to remove dyes and produce renewable fuels such as biodiesel. The novelty of this study is that this is the first time in which the effect of nitrogen concentrations in the medium used for algal growth on the removal of dye has been studied.
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Affiliation(s)
- Noura El-Ahmady El-Naggar
- Department of Bioprocess Development, Genetic Engineering and Biotechnology Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg El‑Arab City, 21934, Alexandria, Egypt.
| | - Ragaa A Hamouda
- Department of Biology, College of Sciences and Arts Khulis, University of Jeddah, Jeddah, Saudi Arabia
- Department of Microbial Biotechnology, Genetic Engineering and Biotechnology Research Institute (GEBRI), University of Sadat City, Sadat City, Egypt
| | - Ghada W Abou-El-Souod
- Department of Botany and Microbiology, Faculty of Science, Menoufia University, Shibīn al-Kawm, Menoufia, Egypt
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7
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Lebedev YA, Shakhatov VA. Decomposition of Carbon Dioxide in Microwave Discharges (an Analytical Review). RUSS J APPL CHEM+ 2022. [DOI: 10.1134/s1070427222010013] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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Pahunang RR, Buonerba A, Senatore V, Oliva G, Ouda M, Zarra T, Muñoz R, Puig S, Ballesteros FC, Li CW, Hasan SW, Belgiorno V, Naddeo V. Advances in technological control of greenhouse gas emissions from wastewater in the context of circular economy. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 792:148479. [PMID: 34465066 DOI: 10.1016/j.scitotenv.2021.148479] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/08/2021] [Accepted: 06/11/2021] [Indexed: 06/13/2023]
Abstract
This review paper aims to identify the main sources of carbon dioxide (CO2) emissions from wastewater treatment plants (WWTPs) and highlights the technologies developed for CO2 capture in this milieu. CO2 is emitted in all the operational units of conventional WWTPs and even after the disposal of treated effluents and sludges. CO2 emissions from wastewater can be captured or mitigated by several technologies such as the production of biochar from sludge, the application of constructed wetlands (CWs), the treatment of wastewater in microbial electrochemical processes (microbial electrosynthesis, MES; microbial electrolytic carbon capture, MECC; in microbial carbon capture, MCC), and via microalgal cultivation. Sludge-to-biochar and CW systems showed a high cost-effectiveness in the capture of CO2, while MES, MECC, MCC technologies, and microalgal cultivation offered efficient capture of CO2 with associate production of value-added by-products. At the state-of-the-art, these technologies, utilized for carbon capture and utilization from wastewater, require more research for further configuration, development and cost-effectiveness. Moreover, the integration of these technologies has a potential internal rate of return (IRR) that could equate the operation or provide additional revenue to wastewater management. In the context of circular economy, these carbon capture technologies will pave the way for new sustainable concepts of WWTPs, as an essential element for the mitigation of climate change fostering the transition to a decarbonised economy.
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Affiliation(s)
- Rekich R Pahunang
- Environmental Engineering Program, National Graduate School of Engineering, University of the Philippines, Diliman, Quezon City, Philippines
| | - Antonio Buonerba
- Sanitary Environmental Engineering Division (SEED), Department of Civil Engineering, University of Salerno, Via Giovanni Paolo II, Fisciano, SA, Italy; Inter-University Centre for Prediction and Prevention of Relevant Hazards (Centro Universitario per la Previsione e Prevenzione Grandi Rischi, C.U.G.RI.), Via Giovanni Paolo II, Fisciano, SA, Italy
| | - Vincenzo Senatore
- Sanitary Environmental Engineering Division (SEED), Department of Civil Engineering, University of Salerno, Via Giovanni Paolo II, Fisciano, SA, Italy
| | - Giuseppina Oliva
- Sanitary Environmental Engineering Division (SEED), Department of Civil Engineering, University of Salerno, Via Giovanni Paolo II, Fisciano, SA, Italy
| | - Mariam Ouda
- Center for Membranes and Advanced Water Technology (CMAT), Department of Chemical Engineering, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Tiziano Zarra
- Sanitary Environmental Engineering Division (SEED), Department of Civil Engineering, University of Salerno, Via Giovanni Paolo II, Fisciano, SA, Italy
| | - Raul Muñoz
- Institute of Sustainable Processes, University of Valladolid, Dr. Mergelina s/n., Valladolid 47011, Spain
| | - Sebastià Puig
- LEQUiA, Institute of the Environment, University of Girona, C/Maria Aurèlia Capmany, 69, E-17003 Girona, Spain
| | - Florencio C Ballesteros
- Environmental Engineering Program, National Graduate School of Engineering, University of the Philippines, Diliman, Quezon City, Philippines; Department of Chemical Engineering, University of the Philippines, Diliman, Quezon City 1101, Philippines
| | - Chi-Wang Li
- Department of Water Resources and Environmental Engineering, Tamkang University, 151 Yingzhuan Road Tamsui District, New Taipei City 25137, Taiwan
| | - Shadi W Hasan
- Center for Membranes and Advanced Water Technology (CMAT), Department of Chemical Engineering, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Vincenzo Belgiorno
- Sanitary Environmental Engineering Division (SEED), Department of Civil Engineering, University of Salerno, Via Giovanni Paolo II, Fisciano, SA, Italy
| | - Vincenzo Naddeo
- Sanitary Environmental Engineering Division (SEED), Department of Civil Engineering, University of Salerno, Via Giovanni Paolo II, Fisciano, SA, Italy.
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Fal S, Benhima R, El Mernissi N, Kasmi Y, Smouni A, El Arroussi H. Microalgae as promising source for integrated wastewater treatment and biodiesel production. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2021; 24:34-46. [PMID: 34000939 DOI: 10.1080/15226514.2021.1920572] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Microalgae have been studied for their potential of wastewater treatment as well as a promising source for biodiesel production. This study investigates the potential of microalgae to remove nutrients from domestic wastewater (DWW) while producing lipids-rich biomass for biodiesel production. Eight microalgae were cultivated in (DWW) to evaluate their nutrients removal capacity and biomass production. Total phosphorus (TP) of DWW reduced from 2 mg L-1 to 0.02 mg L-1 with the treatment efficiency of 99.15% and the highest performance was noted in Chlamydomonas reinhardtii (C. reinhardtii). For total nitrogen (TN), treatment efficiency climbed to 99.07%. It is reduced from 18.35 to 0.17 mg L-1 recorded in C. reinhardtii and Chlorella pyrenoidosa (C. pyrenoidosa). On the other hand, all microalgae showed a high lipids-rich biomass in wastewater compared to BG11. The highest lipid content was 36.93% noted in Chlorella sorokiniana (C. sorokiniana). Fatty acids methyl ester (FAME) profiles showed a high content of palmitic C16:0, oleic C18:1 and stearic acids C18:0 in studied microalgae strains. In summary, microalgae envisage its potential application in integrated wastewater treatment and biodiesel production. In perspective, the authors focus on the validation of this bioprocess in pilot scale. Furthermore, the use of microalgae for other applications such CO2 biosequestration and added value products. Novelty statement: The present study investigates the potential of Moroccan microalgae as candidates to wastewater remediation and high biomass production with high lipid rate for biodiesel production.
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Affiliation(s)
- Soufiane Fal
- Green Biotechnology Laboratory, Moroccan Foundation for Advanced Science, Innovation and Research (MASCIR), Rabat Design Center Rue Mohamed Al Jazouli - Madinat Al Irfane, Rabat, Morocco
- Plant Physiology and Biotechnology Team, Center of Plant and Microbial Biotechnology, Biodiversity and Environment, Faculty of Sciences, Mohammed V University of Rabat, Rabat, Morocco
| | - Redouane Benhima
- Green Biotechnology Laboratory, Moroccan Foundation for Advanced Science, Innovation and Research (MASCIR), Rabat Design Center Rue Mohamed Al Jazouli - Madinat Al Irfane, Rabat, Morocco
| | - Najib El Mernissi
- Green Biotechnology Laboratory, Moroccan Foundation for Advanced Science, Innovation and Research (MASCIR), Rabat Design Center Rue Mohamed Al Jazouli - Madinat Al Irfane, Rabat, Morocco
| | - Yassin Kasmi
- Green Biotechnology Laboratory, Moroccan Foundation for Advanced Science, Innovation and Research (MASCIR), Rabat Design Center Rue Mohamed Al Jazouli - Madinat Al Irfane, Rabat, Morocco
| | - Abdelaziz Smouni
- Plant Physiology and Biotechnology Team, Center of Plant and Microbial Biotechnology, Biodiversity and Environment, Faculty of Sciences, Mohammed V University of Rabat, Rabat, Morocco
| | - Hicham El Arroussi
- Green Biotechnology Laboratory, Moroccan Foundation for Advanced Science, Innovation and Research (MASCIR), Rabat Design Center Rue Mohamed Al Jazouli - Madinat Al Irfane, Rabat, Morocco
- Agrobiosciences Program, University Mohamed 6 Polytechnic (UM6P), Benguerir, Morocco
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Soleymani Robati SM, Nosrati M, Ghanati F, Hajnowrouzi A, Grizeau D, Dupré C. Increase in lipid productivity and photosynthetic activities during distillery wastewater decolorization by Chlorella vulgaris cultures. Appl Microbiol Biotechnol 2021; 105:3339-3351. [PMID: 33783589 DOI: 10.1007/s00253-021-11233-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 01/27/2021] [Accepted: 03/14/2021] [Indexed: 11/25/2022]
Abstract
Finding an eco-friendly process for the decolorization of distillery wastewaters is a major concern. This study shows that the Chlorella vulgaris CCAP 211/19 strain can be used for color removal and direct production of oleaginous biomass. A response surface method was used for determining optimal operating conditions, including the dilution factor of industrial wastewater. The highest daily light supply values were the most efficient for color removal. The analysis of the microalgae physiological status confirmed that these colored waters could have a photoprotective action. Moreover, the increase in photosystem 2 activities of C. vulgaris CCAP 211/19 strain after short-term incubations in the presence of a synthetic melanoidin confirmed that this fraction is involved in the enhancement of lipid-enriched biomass production. The results show for the first time the stimulation effect of a melanoidin fraction on the lipid content and productivity by C. vulgaris. These results suggest that this approach may be used to design a closed loop, including water and CO2 recycling for the wastewater dilution and photosynthetic carbon fixation, respectively, while providing biomass for useful renewable algae-based feedstocks of potential interest for a distillery process. KEY POINTS: • Chlorella vulgaris cultures can be used for decolorization of distillery wastewaters. • Diluted distillery wastewaters stimulate biomass and lipid productivities. • Melanoidins, as well as distillery wastewater, stimulate photosynthetic activities.
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Affiliation(s)
- Seyed Mojtaba Soleymani Robati
- Department of Biotechnology, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
- Nantes University, CNRS, GEPEA, UMR 6144, F-44600, Saint-Nazaire, France
| | - Mohsen Nosrati
- Department of Biotechnology, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran.
| | - Faezeh Ghanati
- Department of Plant Science, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Abazar Hajnowrouzi
- Department of Physics, Faculty of Basic Sciences, Shahed University, Tehran, Iran
| | - Dominique Grizeau
- Nantes University, CNRS, GEPEA, UMR 6144, F-44600, Saint-Nazaire, France
| | - Catherine Dupré
- Nantes University, CNRS, GEPEA, UMR 6144, F-44600, Saint-Nazaire, France
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Abstract
CO2 is a compound of high stability which proves useful in some organic syntheses as a solvent or component decreasing explosivity of gases. It is also a good carbonylating agent for aliphatic amines although not for aromatic ones, the latter being carbonylated with phosgene or, as in our previous works, with CO/O2 in the presence of Pd(II) complexes. In this work we have used the mixture of CO/O2 and CO2 for carbonylation of aniline to N,N’-diphenylurea. After optimization of the reaction conditions (56% of CO2 in CO2/CO mixture) we studied the activity of three kinds of pre-catalysts: (a) Pd(II) complexes, (b) Pdblack, and (c) palladium nanoparticles (PdNPs) in the presence of derivatives of pyridine (XnPy). The highest conversion of aniline (with selectivity towards N,N-diphenylurea ca. 90%) was observed for PdNPs. The results show that catalytic cycle involves Pd(0) stabilized by pyridine ligand as active species. Basing on this observation, we put the hypothesis that application of PdNPs instead of Pd(II) complex can efficiently reduce the reaction time.
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12
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Liu Z, Wang K, Chen Y, Tan T, Nielsen J. Third-generation biorefineries as the means to produce fuels and chemicals from CO2. Nat Catal 2020. [DOI: 10.1038/s41929-019-0421-5] [Citation(s) in RCA: 122] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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13
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Sung YJ, Patel AK, Yu BS, Choi HI, Kim J, Jin E, Sim SJ. Sedimentation rate-based screening of oleaginous microalgae for utilization as a direct combustion fuel. BIORESOURCE TECHNOLOGY 2019; 293:122045. [PMID: 31470230 DOI: 10.1016/j.biortech.2019.122045] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 08/17/2019] [Accepted: 08/20/2019] [Indexed: 06/10/2023]
Abstract
The co-combustion of microalgae biomass with coal has the potential to significantly reduce CO2 emissions by eliminating expensive and carbon-emitting downstream processes. In this study, the utilization of microalgal biomass as a direct combustion fuel in co-firing industries and the screening of potential oleaginous strains of high calorific value was investigated. High-lipid accumulating mutants were selected from mutant mixtures based on cell density using differential sedimentation rates. Of the mutant strains obtained in the top phase of the separation medium, 72% showed a higher lipid content than the wild-type strain. One mutant strain exhibited a 57.3% enhanced lipid content and a 9.3% lower heating value (LHV), both indicators of direct combustion fuel performance, compared to the wild-type strain. Our findings indicate that sedimentation rate-based strain selection allows for the easy and rapid screening of high-lipid content algal strains for the use of microalgae as direct combustion fuels.
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Affiliation(s)
- Young Joon Sung
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Anil Kumar Patel
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Byung Sun Yu
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Hong Il Choi
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Jongrae Kim
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Republic of Korea
| | - EonSeon Jin
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Republic of Korea
| | - Sang Jun Sim
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea.
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14
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Li K, Liu Q, Fang F, Luo R, Lu Q, Zhou W, Huo S, Cheng P, Liu J, Addy M, Chen P, Chen D, Ruan R. Microalgae-based wastewater treatment for nutrients recovery: A review. BIORESOURCE TECHNOLOGY 2019; 291:121934. [PMID: 31395401 DOI: 10.1016/j.biortech.2019.121934] [Citation(s) in RCA: 218] [Impact Index Per Article: 43.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 07/27/2019] [Accepted: 07/29/2019] [Indexed: 05/05/2023]
Abstract
The water resource crisis and concerns with environmental pollution are pushing for upgrading of conventional wastewater treatment process. Microalgae-based wastewater treatment process has shown many advantages that can meet the new demand for improved wastewater treatment. However, considering the issues related to the complexity of wastewater characteristics and adaptability of microalgae species, and the challenges to the design and optimization of treatment processes in order to achieve higher removal efficiencies with lower costs, further exploration and research are still needed. This review provides an overview of microalgae strains commonly used for wastewater treatment, physical and chemical properties of various wastewaters and their suitability for algae cultivation, factors affecting algae growth, nutrient assimilation/removal and biomass productivity. The design and operation of microalgae-based wastewater treatment processes are also discussed. Moreover, the issues and limitations of microalgae-based wastewater treatment are also discussed and suggestions are proposed for the further research and development.
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Affiliation(s)
- Kun Li
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources, Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China; Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Avenue, St. Paul, MN 55112, USA
| | - Qiang Liu
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources, Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Fan Fang
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources, Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Ruihuan Luo
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources, Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Qian Lu
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources, Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Wenguang Zhou
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources, Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China
| | - Shuhao Huo
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Pengfei Cheng
- College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo 315211, China
| | - Junzhi Liu
- College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, China
| | - Min Addy
- Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Avenue, St. Paul, MN 55112, USA
| | - Paul Chen
- Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Avenue, St. Paul, MN 55112, USA
| | - Dongjie Chen
- Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Avenue, St. Paul, MN 55112, USA
| | - Roger Ruan
- Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Avenue, St. Paul, MN 55112, USA.
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15
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Microalgae Cultivation in Pilot Scale for Biomass Production Using Exhaust Gas from Thermal Power Plants. ENERGIES 2019. [DOI: 10.3390/en12183497] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Exhaust gases from thermal power plants have the highest amount of carbon dioxide (CO2), presenting an environmental problem related to a severe impact on ecosystems. Extensively, the reduction of CO2 from thermal power plants has been considered with the aid of microalgae as a cost-effective, sustainable solution, and efficient biological means for recycling of CO2. Microalgae can efficiently uptake CO2 and nutrients resulting in high generation of biomass and which can be processed into different valuable products. In this study, we have taken Nephroselmis sp. KGE8, Acutodesmus obliquus KGE 17 and Acutodesmus obliquus KGE32 microalgae, which are isolated from acid mine drainage and cultivated in a photobiological incubator on a batch scale, and also confirmed that continuous culture was possible on pilot scale for biofuel production. We also evaluated the continuous culture productivity of each cultivate-harvest cycle in the pilot scale. The biomass of the cultivated microalgae was also evaluated for its availability.
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16
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Nirmalakhandan N, Selvaratnam T, Henkanatte-Gedera S, Tchinda D, Abeysiriwardana-Arachchige I, Delanka-Pedige H, Munasinghe-Arachchige S, Zhang Y, Holguin F, Lammers P. Algal wastewater treatment: Photoautotrophic vs. mixotrophic processes. ALGAL RES 2019. [DOI: 10.1016/j.algal.2019.101569] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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17
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Li H, Zhong Y, Lu Q, Zhang X, Wang Q, Liu H, Diao Z, Yao C, Liu H. Co-cultivation of Rhodotorula glutinis and Chlorella pyrenoidosa to improve nutrient removal and protein content by their synergistic relationship. RSC Adv 2019; 9:14331-14342. [PMID: 35519326 PMCID: PMC9064018 DOI: 10.1039/c9ra01884k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 04/10/2019] [Indexed: 11/30/2022] Open
Abstract
With the continuous development of the livestock breeding industry, the amount of piggery wastewater discharged increases year by year, and the pressure of controlling environmental pollution continuously increases. A novel method using a co-culture of Chlorella pyrenoidosa and Rhodotorula glutinis in piggery wastewater was proposed in this study, which was aimed at treating piggery wastewater and producing useful products. The results showed that the optimal inoculum ratio of algae to yeast was 3 : 1 in the wastewater, which achieved the removal efficiencies of 58.53%, 36.07%, 33.20% and 56.25% for ammoniacal nitrogen (NH3-N), total nitrogen (TN), total protein (TP) and chemical oxygen demand (COD), respectively, after 6 d. The synergistic relationship of C. pyrenoidosa and R. glutinis was preliminarily validated using the oxygen/carbon dioxide exchange balance and scanning electron microscopy images. The co-cultivation system gained 59.8% (w/w) protein within 5 d which can be used as a feed additive, and produces aquatic animals with better growth and quality. Thus, the 1000 litre pilot scale bioreactor was used indoors and removed 82.65% of TN, 53.51% of TP, 93.48% of NH3-N and 85.44% of COD in 21 d which gave a better performance for TN (p < 0.05) than the bench scale results. This system improves the nutrition removal and protein production efficiencies, and is a promising method for piggery wastewater treatment and the pig breeding industry. Aiming at treating piggery wastewater and producing useful products, a novel method using a co-culture of Chlorella pyrenoidosa and Rhodotorula glutinis in piggery wastewater was proposed in this study to improve nutrient removal and the protein content in the feed produced.![]()
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Affiliation(s)
- Huankai Li
- School of Environmental Science and Engineering
- Zhongkai University of Agriculture and Engineering
- Guangzhou
- China
| | - Yuming Zhong
- School of Environmental Science and Engineering
- Zhongkai University of Agriculture and Engineering
- Guangzhou
- China
| | - Qian Lu
- School of Resources, Environmental & Chemical Engineering
- Key Laboratory of Poyang Lake Environment and Resource Utilization
- Nanchang University
- Nanchang
- China
| | - Xin Zhang
- Department of Bioproducts and Biosystems Engineering
- University of Minnesota
- St. Paul
- USA
| | - Qin Wang
- School of Environmental Science and Engineering
- Zhongkai University of Agriculture and Engineering
- Guangzhou
- China
| | - Huifan Liu
- School of Environmental Science and Engineering
- Zhongkai University of Agriculture and Engineering
- Guangzhou
- China
| | - Zenghui Diao
- School of Environmental Science and Engineering
- Zhongkai University of Agriculture and Engineering
- Guangzhou
- China
| | - Chuang Yao
- Institute of Engineering Technology of Guangdong Province
- Guangzhou
- China
| | - Hui Liu
- School of Environmental Science and Engineering
- Zhongkai University of Agriculture and Engineering
- Guangzhou
- China
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18
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Dindarloo Inaloo I, Majnooni S. Carbon dioxide utilization in the efficient synthesis of carbamates by deep eutectic solvents (DES) as green and attractive solvent/catalyst systems. NEW J CHEM 2019. [DOI: 10.1039/c9nj02810b] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Deep eutectic solvents as a green solvent/catalyst system for directly synthesizing carbamates from amines, CO2 and alkyl halides.
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Affiliation(s)
| | - Sahar Majnooni
- Department of Chemistry
- University of Isfahan
- Isfahan 81746-73441
- Iran
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19
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20
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Wu W, Lin KH, Chang JS. Economic and life-cycle greenhouse gas optimization of microalgae-to-biofuels chains. BIORESOURCE TECHNOLOGY 2018; 267:550-559. [PMID: 30053713 DOI: 10.1016/j.biortech.2018.07.083] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 07/15/2018] [Accepted: 07/16/2018] [Indexed: 06/08/2023]
Abstract
The new microalgae-to-biofuels chains for producing diesel and ethanol simultaneously are presented. The techno-economic analysis shows that the break-even prices of diesel and ethanol are estimated about US$0.49/kg and US$2.61/kg, respectively, the internal rate of return (IRR) is close to 29.21%, and the commercial prices and yield of products dominate the profitability of this project. According to life cycle analysis (LCA) standards, the life-cycle greenhouse gas (GHG) emissions for producing diesel and ethanol are 0.039 kg CO2-eq/MJ FAME and 0.112 kg CO2-eq/MJ EtOH, respectively. It is verified that the process integration of the heat recovery scheme, the entrainer recovery tower, and CO2 recycling can effectively reduce life-cycle GHG emissions of this design. Through a specific optimization algorithm under different lipid contents and 180 scenario combinations for the cultivation and pretreatment processes, the compromise solutions between the maximum total revenue and the minimum environmental impact can be found.
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Affiliation(s)
- Wei Wu
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan.
| | - Keng-Hsien Lin
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan
| | - Jo-Shu Chang
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan; Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan 70101, Taiwan.
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21
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Salama ES, Hwang JH, El-Dalatony MM, Kurade MB, Kabra AN, Abou-Shanab RAI, Kim KH, Yang IS, Govindwar SP, Kim S, Jeon BH. Enhancement of microalgal growth and biocomponent-based transformations for improved biofuel recovery: A review. BIORESOURCE TECHNOLOGY 2018; 258:365-375. [PMID: 29501272 DOI: 10.1016/j.biortech.2018.02.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 01/31/2018] [Accepted: 02/01/2018] [Indexed: 06/08/2023]
Abstract
Microalgal biomass has received much attention as feedstock for biofuel production due to its capacity to accumulate a substantial amount of biocomponents (including lipid, carbohydrate, and protein), high growth rate, and environmental benefit. However, commercial realization of microalgal biofuel is a challenge due to its low biomass production and insufficient technology for complete utilization of biomass. Recently, advanced strategies have been explored to overcome the challenges of conventional approaches and to achieve maximum possible outcomes in terms of growth. These strategies include a combination of stress factors; co-culturing with other microorganisms; and addition of salts, flue gases, and phytohormones. This review summarizes the recent progress in the application of single and combined abiotic stress conditions to stimulate microalgal growth and its biocomponents. An innovative schematic model is presented of the biomass-energy conversion pathway that proposes the transformation of all potential biocomponents of microalgae into biofuels.
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Affiliation(s)
- El-Sayed Salama
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, South Korea
| | - Jae-Hoon Hwang
- Department of Civil, Environmental and Construction Engineering, University of Central Florida, Orlando, FL 32817, USA
| | - Marwa M El-Dalatony
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, South Korea
| | - Mayur B Kurade
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, South Korea
| | - Akhil N Kabra
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, South Korea
| | | | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, Seoul 04763, South Korea
| | - Il-Seung Yang
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, South Korea
| | - Sanjay P Govindwar
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, South Korea
| | - Sunjoon Kim
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, South Korea
| | - Byong-Hun Jeon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, South Korea.
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22
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Alemu K, Assefa B, Kifle D, Kloos H. Nitrogen and Phosphorous Removal from Municipal Wastewater Using High Rate Algae Ponds. ACTA ACUST UNITED AC 2018. [DOI: 10.1007/s41403-018-0036-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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23
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Sabia A, Clavero E, Pancaldi S, Salvadó Rovira J. Effect of different CO 2 concentrations on biomass, pigment content, and lipid production of the marine diatom Thalassiosira pseudonana. Appl Microbiol Biotechnol 2018; 102:1945-1954. [PMID: 29356867 DOI: 10.1007/s00253-017-8728-0] [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: 11/08/2017] [Revised: 12/15/2017] [Accepted: 12/18/2017] [Indexed: 01/07/2023]
Abstract
The marine diatom Thalassiosira pseudonana grown under air (0.04% CO2) and 1 and 5% CO2 concentrations was evaluated to determine its potential for CO2 mitigation coupled with biodiesel production. Results indicated that the diatom cultures grown at 1 and 5% CO2 showed higher growth rates (1.14 and 1.29 div day-1, respectively) and biomass productivities (44 and 48 mgAFDWL-1 day-1) than air grown cultures (with 1.13 div day-1 and 26 mgAFDWL-1 day-1). The increase of CO2 resulted in higher cell volume and pigment content per cell of T. pseudonana. Interestingly, lipid content doubled when air was enriched with 1-5% CO2. Moreover, the analysis of the fatty acid composition of T. pseudonana revealed the predominance of monounsaturated acids (palmitoleic-16:1 and oleic-18:1) and a decrease of the saturated myristic acid-14:0 and polyunsaturated fatty acids under high CO2 levels. These results suggested that T. pseudonana seems to be an ideal candidate for biodiesel production using flue gases.
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Affiliation(s)
- Alessandra Sabia
- Department of Life Sciences and Biotechnology, University of Ferrara, C.so Ercole I d'Este 32, 44121, Ferrara, Italy
| | - Esther Clavero
- Catalonia Institute for Energy Research, IREC, Marcel·lí Domingo, 2, 43007, Tarragona, Catalonia, Spain
| | - Simonetta Pancaldi
- Department of Life Sciences and Biotechnology, University of Ferrara, C.so Ercole I d'Este 32, 44121, Ferrara, Italy.
| | - Joan Salvadó Rovira
- Departament d'Enginyeria Química, Universitat Rovira i Virgili, Av. Països Catalans, 26, 43007, Tarragona, Spain
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24
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Chandrasekhar K, Ahn YH. Effectiveness of piggery waste treatment using microbial fuel cells coupled with elutriated-phased acid fermentation. BIORESOURCE TECHNOLOGY 2017; 244:650-657. [PMID: 28810220 DOI: 10.1016/j.biortech.2017.08.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 07/31/2017] [Accepted: 08/04/2017] [Indexed: 06/07/2023]
Abstract
The present study evaluates the feasibility of increased power generation in microbial fuel cells (MFCs) coupled with acid elutriation fermentation. Raw piggery waste (RPW) and acid elutriation effluents (AEE) of piggery waste were used to generate bioelectricity in single-chambered air-cathode MFCs. RPW-fed MFCs exhibited stable performance after 12-days of operation, generating 540mV of open circuit voltage (OCV). RPW fed-MFCs displayed peak potential and maximal power density (PDmax) of 0.364V and 192mW/m2 with 980Ω external resistance (Rext), respectively. AEE-fed MFCs documented 818mV of maximum OCV. Furthermore, the peak potential and PDmax of 0.329V and 1553mW/m2 were generated with 100Ω Rext, respectively. RPW and AEE-fed MFCs exhibited 84% and 93% substrate removal efficiency, respectively. These findings suggest that a two-stage process including acid elutriation reactor asa pre-fermentation and MFCs greatly enhances substrate removal and electricity generation from piggery waste.
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Affiliation(s)
- K Chandrasekhar
- Department of Civil Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Young-Ho Ahn
- Department of Civil Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea.
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25
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Ge S, Champagne P. Cultivation of the Marine Macroalgae Chaetomorpha linum in Municipal Wastewater for Nutrient Recovery and Biomass Production. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:3558-3566. [PMID: 28221783 DOI: 10.1021/acs.est.6b06039] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Compared to microalgae, macroalgae are larger in size, thereby imposing lower separation and drying costs. This study demonstrates the feasibility of cultivating macroalgae Chaetomorpha linum in different types of municipal wastewaters, their ability to remove nutrient and their biomass composition for downstream biofuel production. Screening experiments indicated that C. linum grew well on primary (PW) and secondary wastewaters (SW), as well as centrate wastewater (CW) diluted to less than 20%. In a subsequent experiment, a step feeding approach was found to significantly increase biomass productivity to 10.7 ± 0.2 g AFDW·m-2·d-1 (p < 0.001), a 26.5% improvement in comparison to the control with single feeding, when grown on 10-CW; meanwhile, nitrogen and phosphorus removal efficiencies rose to 86.8 ± 1.1% (p < 0.001) and 92.6 ± 0.2% (p < 0.001), respectively. The CO2-supplemented SW cultures (10.1 ± 0.4 g AFDW·m-2·d-1) were 1.20 times more productive than the corresponding controls without CO2 supplementation (p < 0.001); however, similar improvements were not observed in PW (p = 0.07) and 10-CW cultures (p = 0.07). Moreover, wastewater type and nutrient concentration influenced biomass composition (protein, carbohydrate and lipid). These findings indicate that the application of the macroalgae C. linum could represent an effective wastewater treatment alternative that could also provide a feedstock for downstream processing to biofuels.
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Affiliation(s)
- Shijian Ge
- Department of Civil Engineering, Queen's University , Kingston, Ontario Canada K7L 3N6
| | - Pascale Champagne
- Department of Civil Engineering, Queen's University , Kingston, Ontario Canada K7L 3N6
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26
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Zhang H, Li Y, Lu Z, Wu M, Shi R, Chen L. Highly efficient synthesis of biodiesel catalyzed by CF3SO3H-functionalized ionic liquids: experimental design and study with response surface methodology. REACTION KINETICS MECHANISMS AND CATALYSIS 2017. [DOI: 10.1007/s11144-017-1171-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Snoeckx R, Bogaerts A. Plasma technology – a novel solution for CO2 conversion? Chem Soc Rev 2017; 46:5805-5863. [DOI: 10.1039/c6cs00066e] [Citation(s) in RCA: 525] [Impact Index Per Article: 75.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Plasma technology as a potential breakthrough technology for the economic conversion of CO2 into value-added chemicals and fuels.
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Affiliation(s)
- Ramses Snoeckx
- Research group PLASMANT
- Department of Chemistry
- University of Antwerp
- Universiteitsplein 1
- BE-2610 Antwerp
| | - Annemie Bogaerts
- Research group PLASMANT
- Department of Chemistry
- University of Antwerp
- Universiteitsplein 1
- BE-2610 Antwerp
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28
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Najib MZM, Ujang Z, Salim MR, Ibrahim Z, Muda K. Reduction and biofixation of carbon dioxide in palm oil mill effluent using developed microbial granules containing photosynthetic pigments. BIORESOURCE TECHNOLOGY 2016; 221:157-164. [PMID: 27639234 DOI: 10.1016/j.biortech.2016.08.119] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Revised: 08/20/2016] [Accepted: 08/22/2016] [Indexed: 06/06/2023]
Abstract
The developed microbial granules containing photosynthetic pigments had successfully achieved approximately 18-21% of carbon dioxide (CO2) removal in POME for one complete SBR cycle. Also, the granules had reached CO2 removal at 15-29% within 24h and removal of 25% after 5 days. Both results were inconsistent possibly due to the slow mass transfer rate of CO2 from gas to liquid as well as the simultaneous effect of CO2 production and respiration among the microbes. Furthermore, results showed the removal of CO2 from air increases proportionally with the CO2 removed in liquid. The CO2 biofixation of granules attained was approximately 0.23g/L/day for a week. Using the regression model, the removal of CO2 between liquid and gas, CO2 biofixation rate were highly correlated with the treatment time. A statistically significant relationship was obtained between CO2 concentration in liquid, biomass productivity and treatment time for the CO2 biofixation rate of the granules.
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Affiliation(s)
- M Z Mohamed Najib
- Department of Environmental Engineering, Faculty of Civil Engineering, Universiti Teknologi Malaysia (UTM), 81310 Skudai, Johor, Malaysia
| | - Z Ujang
- Centre for Environmental Sustainability and Water Security (IPASA), Research Institute for Sustainable Environment (RISE), Universiti Teknologi Malaysia (UTM), 81310 Skudai, Johor, Malaysia
| | - M R Salim
- Department of Environmental Engineering, Faculty of Civil Engineering, Universiti Teknologi Malaysia (UTM), 81310 Skudai, Johor, Malaysia; Centre for Environmental Sustainability and Water Security (IPASA), Research Institute for Sustainable Environment (RISE), Universiti Teknologi Malaysia (UTM), 81310 Skudai, Johor, Malaysia
| | - Z Ibrahim
- Department of Biosciences and Health Sciences, Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia (UTM), 81310 Skudai, Johor, Malaysia
| | - K Muda
- Department of Environmental Engineering, Faculty of Civil Engineering, Universiti Teknologi Malaysia (UTM), 81310 Skudai, Johor, Malaysia
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29
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Chen P, Xie Q, Addy M, Zhou W, Liu Y, Wang Y, Cheng Y, Li K, Ruan R. Utilization of municipal solid and liquid wastes for bioenergy and bioproducts production. BIORESOURCE TECHNOLOGY 2016; 215:163-172. [PMID: 26996262 DOI: 10.1016/j.biortech.2016.02.094] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Revised: 02/19/2016] [Accepted: 02/20/2016] [Indexed: 05/07/2023]
Abstract
Municipal wastes, be it solid or liquid, are rising due to the global population growth and rapid urbanization and industrialization. Conventional management practice involving recycling, combustion, and treatment/disposal is deemed unsustainable. Solutions must be sought to not only increase the capacity but also improve the sustainability of waste management. Research has demonstrated that the non-recyclable waste materials and bio-solids can be converted into useable heat, electricity, or fuel and chemical through a variety of processes, including gasification, pyrolysis, anaerobic digestion, and landfill gas in addition to combustion, and wastewater streams have the potential to support algae growth and provide other energy recovery options. The present review is intended to assess and analyze the current state of knowledge in the municipal solid wastes and wastewater treatment and utilization technologies and recommend practical solution options and future research and development needs.
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Affiliation(s)
- Paul Chen
- Center for Biorefining and Bioproducts and Biosystems Engineering, University of Minnesota, United States
| | - Qinglong Xie
- Center for Biorefining and Bioproducts and Biosystems Engineering, University of Minnesota, United States
| | - Min Addy
- Center for Biorefining and Bioproducts and Biosystems Engineering, University of Minnesota, United States
| | - Wenguang Zhou
- Center for Biorefining and Bioproducts and Biosystems Engineering, University of Minnesota, United States; MOE Biomass Engineering Research Center, Nanchang University, China
| | - Yuhuan Liu
- MOE Biomass Engineering Research Center, Nanchang University, China
| | - Yunpu Wang
- MOE Biomass Engineering Research Center, Nanchang University, China
| | - Yanling Cheng
- Center for Biorefining and Bioproducts and Biosystems Engineering, University of Minnesota, United States; Key Laboratory of Biomass Resource Utilization, Beijing Union University, China
| | - Kun Li
- MOE Biomass Engineering Research Center, Nanchang University, China
| | - Roger Ruan
- Center for Biorefining and Bioproducts and Biosystems Engineering, University of Minnesota, United States; MOE Biomass Engineering Research Center, Nanchang University, China.
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30
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Sun Z, Chen YF, Du J. Elevated CO2 improves lipid accumulation by increasing carbon metabolism in Chlorella sorokiniana. PLANT BIOTECHNOLOGY JOURNAL 2016; 14:557-66. [PMID: 25973988 DOI: 10.1111/pbi.12398] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 04/14/2015] [Accepted: 04/16/2015] [Indexed: 05/12/2023]
Abstract
Supplying microalgae with extra CO2 is a promising means for improving lipid production. The molecular mechanisms involved in lipid accumulation under conditions of elevated CO2, however, remain to be fully elucidated. To understand how elevated CO2 improves lipid production, we performed sequencing of Chlorella sorokiniana LS-2 cellular transcripts during growth and compared transcriptional dynamics of genes involved in carbon flow from CO2 to triacylglycerol. These analyses identified the majority genes of carbohydrate metabolism and lipid biosynthesis pathways in C. sorokiniana LS-2. Under high doses of CO2 , despite down-regulation of most de novo fatty acid biosynthesis genes, genes involved in carbohydrate metabolic pathways including carbon fixation, chloroplastic glycolysis, components of the pyruvate dehydrogenase complex (PDHC) and chloroplastic membrane transporters were upexpressed at the prolonged lipid accumulation phase. The data indicate that lipid production is largely independent of de novo fatty acid synthesis. Elevated CO2 might push cells to channel photosynthetic carbon precursors into fatty acid synthesis pathways, resulting in an increase of overall triacylglycerol generation. In support of this notion, genes involved in triacylglycerol biosynthesis were substantially up-regulated. Thus, elevated CO2 may influence regulatory dynamics and result in increased carbon flow to triacylglycerol, thereby providing a feasible approach to increase lipid production in microalgae.
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Affiliation(s)
- Zhilan Sun
- Institute of Biotechnology, Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Yi-Feng Chen
- Institute of Biotechnology, Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Jianchang Du
- Institute of Biotechnology, Provincial Key Laboratory of Agrobiology, Jiangsu Academy of Agricultural Sciences, Nanjing, China
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31
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Subramanian G, Dineshkumar R, Sen R. Modelling of oxygen-evolving-complex ionization dynamics for energy-efficient production of microalgal biomass, pigment and lipid with carbon capture: an engineering vision for a biorefinery. RSC Adv 2016. [DOI: 10.1039/c6ra08900c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Development of an algal growth kinetics model, incorporating oxygen-evolving-complex ionization dynamics, for sustainable production of algal biomass, lipid, and chlorophyll (with associated carbon dioxide capture) in an algal biorefinery.
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Affiliation(s)
| | | | - Ramkrishna Sen
- Department of Biotechnology
- Indian Institute of Technology
- Kharagpur
- India
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32
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Subramanian G, Yadav G, Sen R. Rationally leveraging mixotrophic growth of microalgae in different photobioreactor configurations for reducing the carbon footprint of an algal biorefinery: a techno-economic perspective. RSC Adv 2016. [DOI: 10.1039/c6ra14611b] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Experimental set-up to study mixotrophy in Chlorella vulgaris.
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Affiliation(s)
| | - Geetanjali Yadav
- Department of Biotechnology
- Indian Institute of Technology Kharagpur
- India
| | - Ramkrishna Sen
- Department of Biotechnology
- Indian Institute of Technology Kharagpur
- India
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33
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Hu J, Xue Y, Li J, Wang L, Zhang S, Wang YN, Gao MT. Characterization of a designed synthetic autotrophic–heterotrophic consortia for fixing CO2 without light. RSC Adv 2016. [DOI: 10.1039/c6ra13118b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
CO2 fixation efficiency of the devised synthetic microbial consortia with both autotrophic–autotrophic and autotrophic–heterotrophic microbial interactions were higher than the sum of theoretical CO2 fixation efficiency of the microbial components.
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Affiliation(s)
- Jiajun Hu
- Shanghai Key Laboratory of Bio-Energy Crops
- School of Life Sciences
- Shanghai University
- Shanghai 200444
- China
| | - Yiyun Xue
- Shanghai Key Laboratory of Bio-Energy Crops
- School of Life Sciences
- Shanghai University
- Shanghai 200444
- China
| | - Jixiang Li
- Shanghai Advanced Research Institute
- Chinese Academy of Sciences
- Shanghai 20110
- China
| | - Lei Wang
- State Key Laboratory of Pollution Control and Resource Reuse
- School of Environmental Science and Engineering
- Tongji University
- Shanghai 200092
- China
| | - Shiping Zhang
- Shanghai Advanced Research Institute
- Chinese Academy of Sciences
- Shanghai 20110
- China
| | - Ya-nan Wang
- State Key Laboratory of Pollution Control and Resource Reuse
- School of Environmental Science and Engineering
- Tongji University
- Shanghai 200092
- China
| | - Min-tian Gao
- Shanghai Key Laboratory of Bio-Energy Crops
- School of Life Sciences
- Shanghai University
- Shanghai 200444
- China
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34
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Satpati GG, Chandra Gorain P, Paul I, Pal R. An integrated salinity-driven workflow for rapid lipid enhancement in green microalgae for biodiesel application. RSC Adv 2016. [DOI: 10.1039/c6ra23933a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A laboratory based integrated approach was undertaken for improvement of lipid accumulation in green microalgae under sodium chloride (NaCl) stress.
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Affiliation(s)
- Gour Gopal Satpati
- Phycology Laboratory
- Department of Botany
- University of Calcutta
- Kolkata-700019
- India
| | | | - Ishita Paul
- Agricultural and Food Engineering Department
- Indian Institute of Technology
- Kharagpur-721302
- India
| | - Ruma Pal
- Phycology Laboratory
- Department of Botany
- University of Calcutta
- Kolkata-700019
- India
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35
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Jung JH, Lee KS, Im S, Destgeer G, Ha BH, Park J, Sung HJ. Photosynthesis of cyanobacteria in a miniaturized optofluidic waveguide platform. RSC Adv 2016. [DOI: 10.1039/c5ra24344k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We investigated the effect of increasing the optical penetration length, inside polydimethylsiloxane (PDMS)-based photobioreactors (PBRs), upon the photosynthetic cell growth of cyanobacteria.
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Affiliation(s)
- Jin Ho Jung
- Department of Mechanical Engineering
- KAIST
- Daejeon 34141
- Republic of Korea
| | - Kang Soo Lee
- Department of Mechanical Engineering
- KAIST
- Daejeon 34141
- Republic of Korea
| | - Sunghyuk Im
- Department of Mechanical Engineering
- KAIST
- Daejeon 34141
- Republic of Korea
| | - Ghulam Destgeer
- Department of Mechanical Engineering
- KAIST
- Daejeon 34141
- Republic of Korea
| | - Byung Hang Ha
- Department of Mechanical Engineering
- KAIST
- Daejeon 34141
- Republic of Korea
| | - Jinsoo Park
- Department of Mechanical Engineering
- KAIST
- Daejeon 34141
- Republic of Korea
| | - Hyung Jin Sung
- Department of Mechanical Engineering
- KAIST
- Daejeon 34141
- Republic of Korea
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36
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Alipourzadeh A, Mehrnia MR, Hallaj Sani A, Babaei A. Application of response surface methodology for investigation of membrane fouling behaviours in microalgal membrane bioreactor: the effect of aeration rate and biomass concentration. RSC Adv 2016. [DOI: 10.1039/c6ra23188h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study was performed to investigate membrane fouling phenomena and to optimize fouling parameters in a submerged membrane bioreactor.
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Affiliation(s)
- Atefeh Alipourzadeh
- School of Chemical Engineering
- College of Engineering
- University of Tehran
- Tehran
- Iran
| | | | - Ahmad Hallaj Sani
- Caspian School of Engineering
- College of Engineering
- University of Tehran
- Tehran
- Iran
| | - Azadeh Babaei
- School of Chemical Engineering
- College of Engineering
- University of Tehran
- Tehran
- Iran
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37
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Bagchi SK, Mallick N. Carbon dioxide biofixation and lipid accumulation potential of an indigenous microalga Scenedesmus obliquus (Turpin) Kützing GA 45 for biodiesel production. RSC Adv 2016. [DOI: 10.1039/c6ra02811j] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A strategy demonstrating the higher potential of Scenedesmus obliquus for CO2 biofixation and biodiesel production under mixotrophy with biphasic nitrogen starvation.
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Affiliation(s)
- Sourav Kumar Bagchi
- Agricultural and Food Engineering Department
- Indian Institute of Technology Kharagpur
- Kharagpur-721302
- India
| | - Nirupama Mallick
- Agricultural and Food Engineering Department
- Indian Institute of Technology Kharagpur
- Kharagpur-721302
- India
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38
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Ge S, Champagne P. Nutrient removal, microalgal biomass growth, harvesting and lipid yield in response to centrate wastewater loadings. WATER RESEARCH 2016; 88:604-612. [PMID: 26562797 DOI: 10.1016/j.watres.2015.10.054] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 10/27/2015] [Accepted: 10/28/2015] [Indexed: 05/06/2023]
Abstract
The effects of wastewater, with four different nutrient loadings, from synthetic centrate on biomass production, nutrient removal, microalgal settling, and lipid production were investigated in photobioreactors under both batch and, subsequently, semi-continuous operations. At higher centrate concentration factors (17.2% and 36.2%), hydraulic retention time and pH adjustments could be employed to sustain acceptable microalgal growth rates and wastewater treatment. Similar nutrient removals efficiencies (>95%) and biomass production (0.42-0.51 g/L) were observed for the four centrate concentrations. Both the lipid productivity and lipid content decreased with increasing nutrient loading in the wastewater. The results also demonstrated that the mass ratio of carbohydrate to protein could provide a good indication of microalgal settling performance, rather than sole component composition or total extracellular polymeric substances. The highest settling efficiency (42.3 ± 0.04% after 24 h) and lowest lipid content (10.2 ± 1.6%) were observed for the lowest mass ratio of carbohydrate to protein (0.74 ± 0.15) noted in the microalgae cultivated in the wastewater with the highest centrate concentration factor (36.2%).
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Affiliation(s)
- Shijian Ge
- Department of Civil Engineering, Queen's University, Kingston, ON, K7L 3N6, Canada.
| | - Pascale Champagne
- Department of Civil Engineering, Queen's University, Kingston, ON, K7L 3N6, Canada.
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39
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Pathak VV, Kothari R, Chopra AK, Singh DP. Experimental and kinetic studies for phycoremediation and dye removal by Chlorella pyrenoidosa from textile wastewater. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2015; 163:270-277. [PMID: 26349408 DOI: 10.1016/j.jenvman.2015.08.041] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 08/25/2015] [Accepted: 08/26/2015] [Indexed: 06/05/2023]
Abstract
Potential of Chlorella pyrenoidosa was experimentally investigated for phycoremediation and dye removal from textile wastewater (TWW) in batch cultures. Growth of alga was observed at various concentration of textile wastewater (25%, 50%, 75% and 100%) and was found in a range of 8.1-14 μg ml(-1) day(-1). Growth study revealed that alga potentially grows up to 75% concentrated textile wastewater and reduces phosphate, nitrate and BOD by 87%, 82% and 63% respectively. Methylene blue dye (MB) removal was also observed by using dry and wet algal biomass harvested after phycoremediation. Adsorption isotherms (Langmuir and Freundlich) and kinetic models (pseudo first and second order) were applied on adsorption process. Dry algal biomass (DAB) was found more efficient biosorbent with large surface area and showed high binding affinity for MB dye in compare to wet algal biomass (WAB). The RL value for both biosorbent showed feasible adsorption process as the obtained value was between 0 and 1. Pseudo second order kinetic model with high degree of correlation coefficient and low sum of error squares (SSE %) value was found more suitable for representation of adsorption process in case of both biosorbents, however pseudo first order also showed high degree of correlation for both biosorbents.
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Affiliation(s)
- Vinayak V Pathak
- Department of Environmental Sciences, Babasaheb Bhimrao Ambedkar University, Lucknow, U.P., 226025, India; Department of Zoology and Environmental Sciences, Gurukul Kangri University, Haridwar, Uttarakhand, 249404, India; DST - Centre for Policy Research, Babasaheb Bhimrao Ambedkar University, Lucknow, U.P., 226025, India
| | - Richa Kothari
- Department of Environmental Sciences, Babasaheb Bhimrao Ambedkar University, Lucknow, U.P., 226025, India; DST - Centre for Policy Research, Babasaheb Bhimrao Ambedkar University, Lucknow, U.P., 226025, India.
| | - A K Chopra
- Department of Zoology and Environmental Sciences, Gurukul Kangri University, Haridwar, Uttarakhand, 249404, India
| | - D P Singh
- Department of Environmental Sciences, Babasaheb Bhimrao Ambedkar University, Lucknow, U.P., 226025, India; DST - Centre for Policy Research, Babasaheb Bhimrao Ambedkar University, Lucknow, U.P., 226025, India
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40
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Vinayak V, Manoylov KM, Gateau H, Blanckaert V, Hérault J, Pencréac'h G, Marchand J, Gordon R, Schoefs B. Diatom milking: a review and new approaches. Mar Drugs 2015; 13:2629-65. [PMID: 25939034 PMCID: PMC4446598 DOI: 10.3390/md13052629] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 04/15/2015] [Accepted: 04/17/2015] [Indexed: 11/16/2022] Open
Abstract
The rise of human populations and the growth of cities contribute to the depletion of natural resources, increase their cost, and create potential climatic changes. To overcome difficulties in supplying populations and reducing the resource cost, a search for alternative pharmaceutical, nanotechnology, and energy sources has begun. Among the alternative sources, microalgae are the most promising because they use carbon dioxide (CO2) to produce biomass and/or valuable compounds. Once produced, the biomass is ordinarily harvested and processed (downstream program). Drying, grinding, and extraction steps are destructive to the microalgal biomass that then needs to be renewed. The extraction and purification processes generate organic wastes and require substantial energy inputs. Altogether, it is urgent to develop alternative downstream processes. Among the possibilities, milking invokes the concept that the extraction should not kill the algal cells. Therefore, it does not require growing the algae anew. In this review, we discuss research on milking of diatoms. The main themes are (a) development of alternative methods to extract and harvest high added value compounds; (b) design of photobioreactors;
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Affiliation(s)
- Vandana Vinayak
- Department of Criminology & Forensic Science, School of Applied Sciences, Dr. H.S. Gour University (Central University), Sagar Madhya Pradesh, India.
| | - Kalina M Manoylov
- Department of Biological & Environmental Sciences, Georgia College and State University, Milledgeville, GA 31061, USA.
| | - Hélène Gateau
- MicroMar, Mer Molécules Santé, IUML-FR 3473 CNRS, University of Le Mans, Faculté des Sciences et Techniques, Avenue Olivier Messiaen, 72085 Le Mans cedex 9, France.
| | - Vincent Blanckaert
- MicroMar, Mer Molécules Santé, IUML-FR 3473 CNRS, University of Le Mans, IUT de Laval, Rue des Drs Calmette et Guerin, 53020 Laval Cedex 9, France.
| | - Josiane Hérault
- ChimiMar, Mer Molécules Santé, IUML-FR 3473 CNRS, University of Le Mans, IUT de Laval, Rue des Drs Calmette et Guerin, 53020 Laval Cedex 9, France.
| | - Gaëlle Pencréac'h
- ChimiMar, Mer Molécules Santé, IUML-FR 3473 CNRS, University of Le Mans, IUT de Laval, Rue des Drs Calmette et Guerin, 53020 Laval Cedex 9, France.
| | - Justine Marchand
- MicroMar, Mer Molécules Santé, IUML-FR 3473 CNRS, University of Le Mans, Faculté des Sciences et Techniques, Avenue Olivier Messiaen, 72085 Le Mans cedex 9, France.
| | - Richard Gordon
- Gulf Specimen Aquarium & Marine Laboratory, Panacea, FL 32346, USA.
- Mott Center for Human Growth and Development, Department of Obstetrics & Gynecology, Wayne State University, 275 E. Hancock, Detroit, MI 48201, USA.
| | - Benoît Schoefs
- MicroMar, Mer Molécules Santé, IUML-FR 3473 CNRS, University of Le Mans, Faculté des Sciences et Techniques, Avenue Olivier Messiaen, 72085 Le Mans cedex 9, France.
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41
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Ren HY, Liu BF, Kong F, Zhao L, Ren NQ. Sequential generation of hydrogen and lipids from starch by combination of dark fermentation and microalgal cultivation. RSC Adv 2015. [DOI: 10.1039/c5ra15023j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Dark fermentative hydrogen production and microalgal lipid production was successfully combined to enhance the energy conversion from starch with simultaneous treatment of volatile fatty acids in the effluent.
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Affiliation(s)
- Hong-Yu Ren
- State Key Laboratory of Urban Water Resource and Environment
- School of Municipal and Environmental Engineering
- Harbin Institute of Technology
- Harbin 150090
- China
| | - Bing-Feng Liu
- State Key Laboratory of Urban Water Resource and Environment
- School of Municipal and Environmental Engineering
- Harbin Institute of Technology
- Harbin 150090
- China
| | - Fanying Kong
- State Key Laboratory of Urban Water Resource and Environment
- School of Municipal and Environmental Engineering
- Harbin Institute of Technology
- Harbin 150090
- China
| | - Lei Zhao
- State Key Laboratory of Urban Water Resource and Environment
- School of Municipal and Environmental Engineering
- Harbin Institute of Technology
- Harbin 150090
- China
| | - Nan-Qi Ren
- State Key Laboratory of Urban Water Resource and Environment
- School of Municipal and Environmental Engineering
- Harbin Institute of Technology
- Harbin 150090
- China
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42
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Dineshkumar R, Dash SK, Sen R. Process integration for microalgal lutein and biodiesel production with concomitant flue gas CO2 sequestration: a biorefinery model for healthcare, energy and environment. RSC Adv 2015. [DOI: 10.1039/c5ra09306f] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An integrated green microalgal biorefinery was developed with a view to sequestering flue gas CO2 and synthesizing lutein and lipid for potential environmental, healthcare and biofuel applications respectively.
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Affiliation(s)
- R. Dineshkumar
- Department of Biotechnology
- Indian Institute of Technology Kharagpur
- India
| | - Sukanta Kumar Dash
- Department of Mechanical Engineering
- Indian Institute of Technology Kharagpur
- India
| | - Ramkrishna Sen
- Department of Biotechnology
- Indian Institute of Technology Kharagpur
- India
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