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García-Poza S, Pacheco D, Cotas J, Marques JC, Pereira L, Gonçalves AMM. Marine macroalgae as a feasible and complete resource to address and promote Sustainable Development Goals (SDGs). INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2022; 18:1148-1161. [PMID: 35225423 DOI: 10.1002/ieam.4598] [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: 02/27/2021] [Revised: 01/28/2022] [Accepted: 02/11/2022] [Indexed: 06/14/2023]
Abstract
Because the world's population is increasing, science-based policies are needed to promote sustainable global development. It is important to maintain and restore the environment and help human society overcome the risks from industrialization and unsustainable exponential growth. In recent years, many studies have highlighted that macroalgae represent a key marine resource for ecological and sustainable living, thus helping to address today's global problems, such as water pollution, ocean acidification, and global warming. Macroalgae show the potential to provide innovative, ecofriendly, and nutritious food sources and natural compounds for various industries, such as biomedical, food, agricultural, and pharmaceutical industries. This review discusses how macroalgae can help us today and how they can promote a more sustainable way of life in the future. It also discusses the potential danger for ecosystems and the global population if these organisms are not part of the solution but part of the problem. Integr Environ Assess Manag 2022;18:1148-1161. © 2022 SETAC.
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Affiliation(s)
- Sara García-Poza
- University of Coimbra, MARE-Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, Coimbra, Portugal
| | - Diana Pacheco
- University of Coimbra, MARE-Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, Coimbra, Portugal
| | - João Cotas
- University of Coimbra, MARE-Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, Coimbra, Portugal
| | - João C Marques
- University of Coimbra, MARE-Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, Coimbra, Portugal
| | - Leonel Pereira
- University of Coimbra, MARE-Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, Coimbra, Portugal
| | - Ana M M Gonçalves
- University of Coimbra, MARE-Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, Coimbra, Portugal
- Department of Biology, CESAM-Centre for Environmental and Marine Studies, University of Aveiro, Aveiro, Portugal
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Pardilhó S, Pires JC, Boaventura R, Almeida M, Maia Dias J. Biogas production from residual marine macroalgae biomass: Kinetic modelling approach. BIORESOURCE TECHNOLOGY 2022; 359:127473. [PMID: 35714781 DOI: 10.1016/j.biortech.2022.127473] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/10/2022] [Accepted: 06/11/2022] [Indexed: 06/15/2023]
Abstract
Modelling the conversion of residual biomass to renewable fuels is of high relevance to promote the development of effective technological solutions. The present study compares the performance of five different kinetic models (pseudo-first-order kinetics, logistics, modified Gompertz, double-Gompertz, and multi-Gompertz) to describe the cumulative methane production during a low-solids anaerobic digestion of marine macroalgae waste. Different substrate concentrations were evaluated (0.9, 1.7 and 2.5% TS) with the best methane yield (105.2 mL CH4.g VS-1) being obtained at the highest amount of biomass. All models fitted the experimental data with R2 > 0.988. The innovative multi-Gompertz model herein proposed led to the best performance indexes for all tested experimental conditions, allowing to predict methane yields more accurately when the digestion occurs in two or more steps, as it was the case with marine macroalgae waste.
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Affiliation(s)
- Sara Pardilhó
- Laboratory for Process Engineering, Environment, Biotechnology and Energy (LEPABE), Department of Metallurgical and Materials Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal; ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
| | - José C Pires
- Laboratory for Process Engineering, Environment, Biotechnology and Energy (LEPABE), Department of Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal; ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
| | - Rui Boaventura
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Department of Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal; ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
| | - Manuel Almeida
- Laboratory for Process Engineering, Environment, Biotechnology and Energy (LEPABE), Department of Metallurgical and Materials Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal; ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
| | - Joana Maia Dias
- Laboratory for Process Engineering, Environment, Biotechnology and Energy (LEPABE), Department of Metallurgical and Materials Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal; ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal.
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Pardilhó S, Cotas J, Pereira L, Oliveira MB, Dias JM. Marine macroalgae in a circular economy context: A comprehensive analysis focused on residual biomass. Biotechnol Adv 2022; 60:107987. [DOI: 10.1016/j.biotechadv.2022.107987] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 04/21/2022] [Accepted: 05/17/2022] [Indexed: 02/06/2023]
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Pardilhó S, Boaventura R, Almeida M, Dias JM. Marine macroalgae waste: A potential feedstock for biogas production. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 304:114309. [PMID: 34933268 DOI: 10.1016/j.jenvman.2021.114309] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/26/2021] [Accepted: 12/13/2021] [Indexed: 06/14/2023]
Abstract
In the present study, marine macroalgae waste, mainly composed by Saccorhiza polyschides, was collected from a beach in northern Portugal and evaluated as feedstock for anaerobic digestion. Batch experiments (500 mL flasks, 300 mL working volume) were conducted at the following conditions: mesophilic temperature (37 °C); 80 rpm stirring speed; 150 mL inoculum (anaerobically digested sludge) and variable total solids content (0.9, 1.7, 2.5 and 3.5% TS). Methane concentration and volume of biogas obtained were monitored during up to 57 days by optical sensors and milligascounters, respectively. The results show that an increase in total solids content up to 2.5% TS led to the highest biogas volume and methane concentration. The maximum biogas yield was 227 ± 4 mL/g VS (2.5% TS, 53 operation days), with the maximum methane content in the biogas being 64.5 ± 0.6% (51 operation days). A maximum methane yield of 146 ± 2 mL/g VS was consequently estimated. At the end of the process (57 days), an average of 43% COD reduction and 46% VS reduction were observed. These results correspond to about 27% of the theoretical maximum methane production. Using 3.5% TS the inhibition of the process was observed, by the decrease in pH, most likely due to the accumulation of volatile fatty acids. The results indicate that marine macroalgae waste may be a good candidate as substrate for anaerobic digestion processes, most probably by co-digestion.
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Affiliation(s)
- Sara Pardilhó
- Laboratory for Process Engineering, Environment, Biotechnology and Energy (LEPABE), Department of Metallurgical and Materials Engineering, Faculty of Engineering of University of Porto, 4200-465, Porto, Portugal
| | - Rui Boaventura
- Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Department of Chemical Engineering, Faculty of Engineering of University of Porto, 4200-465, Porto, Portugal
| | - Manuel Almeida
- Laboratory for Process Engineering, Environment, Biotechnology and Energy (LEPABE), Department of Metallurgical and Materials Engineering, Faculty of Engineering of University of Porto, 4200-465, Porto, Portugal
| | - Joana Maia Dias
- Laboratory for Process Engineering, Environment, Biotechnology and Energy (LEPABE), Department of Metallurgical and Materials Engineering, Faculty of Engineering of University of Porto, 4200-465, Porto, Portugal.
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