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Folgueras MB, Gutiérrez-Trashorras AJ, Laine-Cuervo G, Ríos-Fernández JC. The relevant effect of marine salt and epiphytes on Posidonia oceanica waste pyrolysis: Removal of SO 2/HCl emissions and promotion of O/HCOOH formation. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 181:101-113. [PMID: 38603994 DOI: 10.1016/j.wasman.2024.04.014] [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: 12/06/2023] [Revised: 03/11/2024] [Accepted: 04/07/2024] [Indexed: 04/13/2024]
Abstract
Significant quantities of Posidonia oceanica deposit on some beaches and coastlines every year, which generates high costs associated with the disposal of this waste. Pyrolysis may be an adequate way for its valorization. However, it would imply to know how the process takes place and if the removal of its natural detrital inorganic matter (epiphytes, marine salt and sand) is necessary, which are the objectives of this research. Pyrolysis by thermogravimetry-mass spectrometry was carried out on both the washed and unwashed samples. During this waste pyrolysis, the following occurs: (i) the high alkali metal chloride content promotes fragmentation reactions of carbohydrates and O formation, which increases HCOOH intensities at temperatures between 250 and 360 °C; (ii) from 500 °C to 650 °C, Fe2O3 and decomposition of carbonates seem to be involved in reactions that produce O release and steam and CO2 reforming of hydrocarbons and oxygenated organic compounds with H2 generation; (iii) from 650 °C to 750 °C, Fe2O3, high alkali metal content and carbonate decomposition generate char gasification, an increase in O release, SO2 capture and HCOOH formation. In general, the abundance of inorganic matter (chlorides, carbonates, etc.) minimizes the release of various compounds during pyrolysis, including SO2 and HCl, while increasing HCOOH production. Thus, this high content of inorganic matter may represent an advantage for its pyrolysis, producing value-added chemical products with a reduced environmental impact. Therefore, this study may be the starting point for defining the optimal pyrolysis conditions for this waste valorisation.
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Affiliation(s)
- M B Folgueras
- Department of Energy, University of Oviedo, Polytechnic School of Mieres, c/ Gonzalo Gutiérrez Quirós s/n, 33600 Mieres, Asturias, Spain
| | - Antonio J Gutiérrez-Trashorras
- Department of Energy, University of Oviedo, Polytechnic School of Engineering of Gijón, Campus de Viesques, 33203 Gijón, Asturias, Spain
| | - G Laine-Cuervo
- Department of Energy, University of Oviedo, Polytechnic School of Mieres, c/ Gonzalo Gutiérrez Quirós s/n, 33600 Mieres, Asturias, Spain
| | - Juan Carlos Ríos-Fernández
- Department of Energy, University of Oviedo, Polytechnic School of Mieres, c/ Gonzalo Gutiérrez Quirós s/n, 33600 Mieres, Asturias, Spain; Department of Energy, University of Oviedo, Polytechnic School of Engineering of Gijón, Campus de Viesques, 33203 Gijón, Asturias, Spain.
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Font-Verdera F, Liébana R, Rossello-Mora R, Viver T. Impact of dilution on stochastically driven methanogenic microbial communities of hypersaline anoxic sediments. FEMS Microbiol Ecol 2023; 99:fiad146. [PMID: 37989854 PMCID: PMC10673710 DOI: 10.1093/femsec/fiad146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 10/02/2023] [Accepted: 11/20/2023] [Indexed: 11/23/2023] Open
Abstract
Sediments underlying the solar salterns of S'Avall are anoxic hypersaline ecosystems dominated by anaerobic prokaryotes, and with the especial relevance of putative methanogenic archaea. Slurries from salt-saturated sediments, diluted in a gradient of salinity and incubated for > 4 years revealed that salt concentration was the major selection force that deterministically structured microbial communities. The dominant archaea in the original communities showed a decrease in alpha diversity with dilution accompanied by the increase of bacterial alpha diversity, being highest at 5% salts. Correspondingly, methanogens decreased and in turn sulfate reducers increased with decreasing salt concentrations. Methanogens especially dominated at 25%. Different concentrations of litter of Posidonia oceanica seagrass added as a carbon substrate, did not promote any clear relevant effect. However, the addition of ampicillin as selection pressure exerted important effects on the assemblage probably due to the removal of competitors or enhancers. The amended antibiotic enhanced methanogenesis in the concentrations ≤ 15% of salts, whereas it was depleted at salinities ≥ 20% revealing key roles of ampicillin-sensitive bacteria.
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Affiliation(s)
- Francisca Font-Verdera
- Mediterranean Institute for Advanced Studies (IMEDEA, UIB-CSIC), Miquel Marquès, 21, 07190 Esporles, Illes Balears, SPAIN
| | - Raquel Liébana
- Mediterranean Institute for Advanced Studies (IMEDEA, UIB-CSIC), Miquel Marquès, 21, 07190 Esporles, Illes Balears, SPAIN
- AZTI, Basque Research Technology Alliance (BRTA), Txatxarramendi ugartea z/g, Sukarrieta, 48395 Sukarrieta, Bizkaia, Spain
| | - Ramon Rossello-Mora
- Mediterranean Institute for Advanced Studies (IMEDEA, UIB-CSIC), Miquel Marquès, 21, 07190 Esporles, Illes Balears, SPAIN
| | - Tomeu Viver
- Mediterranean Institute for Advanced Studies (IMEDEA, UIB-CSIC), Miquel Marquès, 21, 07190 Esporles, Illes Balears, SPAIN
- Max Planck Institute for Marine Microbiology, Celsiusstraße 1, 28359 Bremen, Germany
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Zhang J, Xu X, Lv Y, Zhu W, Zhang H, Ding J, Zhang X, Zhu J, Ding Y. Research progress on influencing factors on compost maturity and cyanobacteria toxin degradation during aerobic cyanobacteria composting: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:70635-70657. [PMID: 35997884 DOI: 10.1007/s11356-022-21977-2] [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: 04/18/2022] [Accepted: 07/08/2022] [Indexed: 06/15/2023]
Abstract
Cyanobacterial bloom is by far one of the most common water quality hazards. As cyanobacteria are rich in nitrogen, phosphorus, and other organic matter, the potential for beneficial use of cyanobacteria is promising. Aerobic composting is currently a hot topic of research in cyanobacteria treatment, which can effectively achieve reduction, recycling, and removal of the harmful impact of cyanobacteria. In this review, the characteristics of cyanobacteria in aerobic composting processes, the effects of physical, chemical, and biological factors on the composting process, and the degradation of microcystic toxins were systematically discussed and summarized. This review epitomizes the large quantities of research data collected by many scholars around the world to address the characteristics of "one low and five highs" in the aerobic cyanobacterial composting process. The composting techniques developed are effective and easy to adopt in the real world, such as adjusting the substrate C/N ratio and moisture content and use of chemical and biological additives to achieve reduction, recycling, and detoxication of the cyanobacterial wastes. The aim of this comprehensive review is to provide theoretical guidance and reference for further development and application of aerobic cyanobacteria composting technology.
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Affiliation(s)
- Jiayi Zhang
- Key Laboratory of Hangzhou City for Ecosystem Protection and Restoration, Hangzhou Normal University, Hangzhou, 310016, People's Republic of China
| | - Xianwen Xu
- Key Laboratory of Hangzhou City for Ecosystem Protection and Restoration, Hangzhou Normal University, Hangzhou, 310016, People's Republic of China
| | - Ya Lv
- Key Laboratory of Hangzhou City for Ecosystem Protection and Restoration, Hangzhou Normal University, Hangzhou, 310016, People's Republic of China
| | - Weiqin Zhu
- Key Laboratory of Hangzhou City for Ecosystem Protection and Restoration, Hangzhou Normal University, Hangzhou, 310016, People's Republic of China
| | - Hangjun Zhang
- Key Laboratory of Hangzhou City for Ecosystem Protection and Restoration, Hangzhou Normal University, Hangzhou, 310016, People's Republic of China
| | - Jiafeng Ding
- Key Laboratory of Hangzhou City for Ecosystem Protection and Restoration, Hangzhou Normal University, Hangzhou, 310016, People's Republic of China
| | - Xiaofang Zhang
- Key Laboratory of Hangzhou City for Ecosystem Protection and Restoration, Hangzhou Normal University, Hangzhou, 310016, People's Republic of China
| | - Jun Zhu
- Department of Biological and Agricultural Engineering, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Ying Ding
- Key Laboratory of Hangzhou City for Ecosystem Protection and Restoration, Hangzhou Normal University, Hangzhou, 310016, People's Republic of China.
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Pal D, Hogland W. An overview and assessment of the existing technological options for management and resource recovery from beach wrack and dredged sediments: An environmental and economic perspective. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 302:113971. [PMID: 34715612 DOI: 10.1016/j.jenvman.2021.113971] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 09/30/2021] [Accepted: 10/17/2021] [Indexed: 06/13/2023]
Abstract
The present work discusses the problems and management options of beach wrack and dredged sediments. Beach wrack and dredged sediments near the shores have affected the coastal ecosystem, badly. The piles of beach wrack residues might be a significant emitter of greenhouse gases (GHGs) and dredged sediment is a substantial source of heavy metals and other pollutants. The recovery of valuable resources such as metals and nutrients from these so-called "wastes" is a sustainable strategy to enhance the resilience of the coastal ecosystem and management. The beach wrack meadows can be a potential source for green energy production. Even the demand for biodegradable polymers can be supplied by utilizing the waste beach wracks. The residues of beach wrack species like Posidonia oceanica, Zostera marina, Ulva spc. and Enhalus acorodies can be very beneficial species in terms of economic growth. Red algae have been the most favored and efficient candidate for methane yield. In case of dredged sediment, dewatering of sediment is an essential step for successful resource extraction. Although, extraction methods are almost similar to that applied for soil treatment, which includes pretreatment, physical partitioning, washing, thermal treatment, biological extraction, and immobilization. The fractionation study can be a beneficial tool for determining the metal species present in the sediment. Immobilization techniques are successful but continuous monitoring is required. The vitrification technique is highly effective but very expensive. Thermal treatment is useful for volatile metals such as mercury (Hg), but costs are high. Biological extractions are comparatively cheap but time-consuming. Henceforth, very few extraction methods are available for sediment and required further advancement in this field.
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Affiliation(s)
- Divya Pal
- Department of Environmental Studies, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, Gujrat, 390002, India.
| | - William Hogland
- Environmental Engineering and Recovery, Faculty of Health and Life Sciences, Dept. of Biology and Environmental Science, Linnaeus University, SE-392 31, Kalmar, Sweden.
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Mainardis M, Magnolo F, Ferrara C, Vance C, Misson G, De Feo G, Speelman S, Murphy F, Goi D. Alternative seagrass wrack management practices in the circular bioeconomy framework: A life cycle assessment approach. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 798:149283. [PMID: 34375248 DOI: 10.1016/j.scitotenv.2021.149283] [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] [Received: 04/29/2021] [Revised: 07/20/2021] [Accepted: 07/22/2021] [Indexed: 06/13/2023]
Abstract
Despite providing important ecological functions, seagrass accumulation causes environmental and economic issues, including eutrophication and tourism reduction. Nowadays, seagrass wrack is commonly removed from the beaches and landfilled, which is considered the least desirable practice according to the European Union (EU) Waste Framework Directive. In this study, different management strategies for seagrass valorisation, including anaerobic digestion (AD), composting and ecological restoration, were considered using a life cycle assessment (LCA) perspective. The aim of the work was to evaluate more ecological and economic alternatives to landfill and to provide a robust evaluation method for public and private companies. An economic assessment was subsequently conducted, considering both direct and indirect impacts with a life cycle costing (LCC) approach. A selected beach located in the Northeast Mediterranean Sea was considered as a relevant case-study. The environmental impacts of the seagrass management scenarios were evaluated with the method ReCiPe 2016H, using both midpoint and endpoint levels. LCA results showed that ecological restoration and AD were the best alternatives in terms of environmental performances because of biogas production used as a renewable energy source. The impacts of the alternative management strategies were significantly lower than the current landfill strategy, -70% considering the categories of human health, ecosystems and resources, and -95% considering global warming potential category. The LCC analysis proved that composting was the best alternative (NPV > 1.27 M€), due to lower operating costs and higher fertilizer value. The obtained results can help beach management companies and public administrations to select the best operational strategies to reduce the environmental and economic impact of seagrass collection and treatment.
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Affiliation(s)
- Matia Mainardis
- Department Polytechnic of Engineering and Architecture (DPIA), University of Udine, Via del Cotonificio 108, 33100 Udine, Italy.
| | - Francesca Magnolo
- Department of Agricultural Economics, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Gent, Belgium.
| | - Carmen Ferrara
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Sa, Italy.
| | - Charlene Vance
- School of Biosystems and Food Engineering, University College Dublin (UCD), Belfield, Dublin 4, Ireland.
| | - Gloria Misson
- Department Polytechnic of Engineering and Architecture (DPIA), University of Udine, Via del Cotonificio 108, 33100 Udine, Italy
| | - Giovanni De Feo
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Sa, Italy.
| | - Stijn Speelman
- Department of Agricultural Economics, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Gent, Belgium.
| | - Fionnuala Murphy
- School of Biosystems and Food Engineering, University College Dublin (UCD), Belfield, Dublin 4, Ireland.
| | - Daniele Goi
- Department Polytechnic of Engineering and Architecture (DPIA), University of Udine, Via del Cotonificio 108, 33100 Udine, Italy.
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Christopoulou NM, Kalogianni DP, Christopoulos TK. Posidonia oceanica (Mediterranean tapeweed) leaf litter as a source of fluorescent carbon dot preparations. Microchem J 2021. [DOI: 10.1016/j.microc.2020.105787] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Gibilisco PE, Lancelotti JL, Negrin VL, Idaszkin YL. Composting of seaweed waste: Evaluation on the growth of Sarcocornia perennis. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 274:111193. [PMID: 32810680 DOI: 10.1016/j.jenvman.2020.111193] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/10/2020] [Accepted: 08/01/2020] [Indexed: 06/11/2023]
Abstract
Composting represents a suitable and cheap method for handling and processing seaweeds accumulated on the coast. Within this framework, two seaweed composts were prepared, one with Undaria pinnatifida accumulated in spring-summer and other with a mixture of seaweeds accumulated in autumn-winter, both from Central Patagonian beaches. The effect of these two composts was evaluated experimentally as an amendment for the growth of Sarcocornia perennis (chickenclaws), a plant species dominating Patagonian salt marshes. Both composts were applied at 75, 50, and 25% doses with perlite. The analysis of the compost properties (phytotoxicity test, C/N, electrical conductivity, pH, and metal content) allowed characterizing both composts as matures and stables. The growth results showed that both composts allow the growth of S. perennis in all doses tested; however, Undaria compost was better in the stimulation of vegetative growth when applied in dose 50%, followed by 75% of both composts. For these reasons, both composts from seaweed waste accumulated on Patagonian coasts could be used in the growth of S. perennis and potentially other plant species, giving value to the seaweeds that currently are considered a waste that disturb these coasts and are discarded without use.
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Affiliation(s)
- Pablo E Gibilisco
- Instituto Patagónico para el Estudio de los Ecosistemas Continentales (IPEEC-CONICET), Boulevard Brown, 2915, U9120ACD, Puerto Madryn, Chubut, Argentina; Universidad Nacional de la Patagonia San Juan Bosco, Boulevard Brown, 3051, U9120ACD, Puerto Madryn, Chubut, Argentina
| | - Julio L Lancelotti
- Instituto Patagónico para el Estudio de los Ecosistemas Continentales (IPEEC-CONICET), Boulevard Brown, 2915, U9120ACD, Puerto Madryn, Chubut, Argentina; Universidad Nacional de la Patagonia San Juan Bosco, Boulevard Brown, 3051, U9120ACD, Puerto Madryn, Chubut, Argentina
| | - Vanesa L Negrin
- Instituto Argentino de Oceanografía (IADO- CONICET-UNS), Camino La Carrindanga km 7.5, Edificio E-1 CC 804, (8000), Bahía Blanca, Buenos Aires, Argentina; Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, San Juan 670, (8000), Bahía Blanca, Buenos Aires, Argentina
| | - Yanina L Idaszkin
- Instituto Patagónico para el Estudio de los Ecosistemas Continentales (IPEEC-CONICET), Boulevard Brown, 2915, U9120ACD, Puerto Madryn, Chubut, Argentina; Universidad Nacional de la Patagonia San Juan Bosco, Boulevard Brown, 3051, U9120ACD, Puerto Madryn, Chubut, Argentina.
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8
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Optimizing Risk Allocation in Public-Private Partnership Projects by Project Finance Contracts. The Case of Put-or-Pay Contract for Stranded Posidonia Disposal in the Municipality of Bari. SUSTAINABILITY 2020. [DOI: 10.3390/su12030806] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This paper investigates the impact of the adoption of public support on the performance of public–private partnership (PPP) projects as perceived and measured by the different actors involved. In particular, the public support investigated by this study is put-or pay contracts, which are often used in PPP projects financed through project finance to optimize risk allocation. In order to quantify the benefit gained by each party with and without the put-or-pay contract, cash flows of the project have been modeled by using the concept of real option, defined as the right without the obligation to make an action if it is convenient to do so. This concept enabled us to model and quantify the inner flexibility mechanism of put-or-pay contracts. With a put-or-pay agreement signed between the municipality, a (private) owner, and operator of a disposal facility, the owner of the facility has the faculty, without any obligation, to require the payment of penalty, if the municipality fails to meet its obligations. This means that the owner of the facility holds a series of European put options that can be exercised if it is convenient for the holder. The developed model has been used for studying the effectiveness of put-or-pay contracts for financing the treatment plant of a special dispose through project finance, i.e., the plant for disposal of marine plant posidonia.
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El Achaby M, Kassab Z, Aboulkas A, Gaillard C, Barakat A. Reuse of red algae waste for the production of cellulose nanocrystals and its application in polymer nanocomposites. Int J Biol Macromol 2018; 106:681-691. [DOI: 10.1016/j.ijbiomac.2017.08.067] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Revised: 08/09/2017] [Accepted: 08/10/2017] [Indexed: 11/15/2022]
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Garcia-Garcia D, Quiles-Carrillo L, Montanes N, Fombuena V, Balart R. Manufacturing and Characterization of Composite Fibreboards with Posidonia oceanica Wastes with an Environmentally-Friendly Binder from Epoxy Resin. MATERIALS (BASEL, SWITZERLAND) 2017; 11:E35. [PMID: 29278395 PMCID: PMC5793533 DOI: 10.3390/ma11010035] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Revised: 11/15/2017] [Accepted: 11/16/2017] [Indexed: 11/24/2022]
Abstract
Highly environmentally-friendly fibreboards were manufactured by hot-press moulding using Posidonia ocaeanica wastes and a partially biobased epoxy resin as binder. Fibreboards with a constant fibre content of 70 wt % were successfully manufactured by thermo-compression. The effects of a conventional alkali treatment were compared to the synergistic effects that additional silanization with two silanes (amino and glycidyl) can exert on the mechanical and thermo-mechanical properties of fibreboards. The results revealed a remarkable improvement of the mechanical properties with the combination of the alkali treatment followed by the silanization. Scanning electron microscopy also revealed increased resin-fibre interactions due to the synergistic effect of both amino- and glycidyl-silanes. These fibreboards represent a formaldehyde-free solution and can positively contribute to sustainable development as the lignocellulosic component is a waste and the binder resin is partially biobased.
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Affiliation(s)
- Daniel Garcia-Garcia
- Instituto de Tecnología de Materiales-ITM, Universitat Politècnica de València-UPV, Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain.
| | - Luis Quiles-Carrillo
- Instituto de Tecnología de Materiales-ITM, Universitat Politècnica de València-UPV, Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain.
| | - Nestor Montanes
- Instituto de Tecnología de Materiales-ITM, Universitat Politècnica de València-UPV, Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain.
| | - Vicent Fombuena
- Instituto de Tecnología de Materiales-ITM, Universitat Politècnica de València-UPV, Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain.
| | - Rafael Balart
- Instituto de Tecnología de Materiales-ITM, Universitat Politècnica de València-UPV, Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain.
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Gattullo CE, Mininni C, Parente A, Montesano FF, Allegretta I, Terzano R. Effects of municipal solid waste- and sewage sludge-compost-based growing media on the yield and heavy metal content of four lettuce cultivars. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:25406-25415. [PMID: 28933019 DOI: 10.1007/s11356-017-0103-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Accepted: 09/04/2017] [Indexed: 05/23/2023]
Abstract
Compost has been recently suggested as an alternative to peat for the preparation of growing substrates in soilless cultivation systems. However, some physico-chemical properties of compost may reduce plant performance and endanger the quality of productions, in particular for possible heavy metal accumulation in edible parts. This study aims at evaluating the suitability of a municipal solid waste compost (MSWC) and a sewage sludge compost (SSC) as components of growing media for the soilless cultivation of lettuce (Lactuca sativa L.). Heavy metal content of SSC complied with legislation limits but, in MSWC, it exceeded (Cu, Pb) or was very close (Cd, Zn) to safe limits. A greenhouse experiment was carried out by cultivating four lettuce cultivars ("Maximus," "Murai," "Patagonia," and "Aleppo") in pots containing a mixture of MSWC and perlite (MSWC + P), SSC and perlite (SSC + P), or peat and perlite (peat + P), the latter used as control. Plant biometric parameters measured after 72 days of growth revealed that the yield of plants cultivated on SSC + P was similar to control plants, independently of the cultivar. Conversely, MSWC + P suppressed in general the biomass production, especially for Murai and Patagonia cultivars. Compared to peat + P, both compost-based substrates reduced the leaf accumulation of heavy metals, with a major effect in Maximus plants. The levels of Cd and Pb in the edible part were always below the safe limits imposed by European regulation. Therefore, risks of heavy metal intake in food chain associated with the replacement of peat with compost in the growing media are negligible, even when a compost with a significant amount of heavy metals is used. Besides compost quality monitoring, also an appropriate varietal choice is crucial to obtain good yields and safe products.
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Affiliation(s)
- Concetta Eliana Gattullo
- Department of Soil, Plant and Food Sciences, University of Bari "Aldo Moro", Via Amendola 165/A, 70126, Bari, Italy
| | - Carlo Mininni
- C.N.R.-National Research Council, Institute of Sciences of Food Production, Via Amendola 122/O, 70126, Bari, Italy
| | - Angelo Parente
- C.N.R.-National Research Council, Institute of Sciences of Food Production, Via Amendola 122/O, 70126, Bari, Italy.
| | - Francesco Fabiano Montesano
- C.N.R.-National Research Council, Institute of Sciences of Food Production, Via Amendola 122/O, 70126, Bari, Italy
| | - Ignazio Allegretta
- Department of Soil, Plant and Food Sciences, University of Bari "Aldo Moro", Via Amendola 165/A, 70126, Bari, Italy
| | - Roberto Terzano
- Department of Soil, Plant and Food Sciences, University of Bari "Aldo Moro", Via Amendola 165/A, 70126, Bari, Italy
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Seagrass Ecosystem Services and Their Variability across Genera and Geographical Regions. PLoS One 2016; 11:e0163091. [PMID: 27732600 PMCID: PMC5061329 DOI: 10.1371/journal.pone.0163091] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 09/02/2016] [Indexed: 12/03/2022] Open
Abstract
Threats to and loss of seagrass ecosystems globally, impact not only natural resources but also the lives of people who directly or indirectly depend on these systems. Seagrass ecosystems play a multi-functional role in human well-being, e.g. food through fisheries, control of erosion and protection against floods. Quantifying these services reveals their contributions to human well-being and helps justify seagrass conservation. There has been no comprehensive assessment as to whether seagrass ecosystem services are perceived to vary over the globe or amongst genera. Our study compiles the most complete list of ecosystem services provided by seagrasses so far, including bioregional- and genus-specific information from expert opinion and published studies. Several seagrass ecosystem services vary considerably in their (known) provision across genera and over the globe. Seagrasses genera are clearly not all equal with regard to the ecosystem services they provide. As seagrass genera are not evenly distributed over all bioregions, the presence of an ecosystem service sometimes depends on the genera present. Larger sized seagrass genera (e.g. Posidonia, Enhalus) are perceived to provide more substantial and a wider variety of ecosystem services than smaller species (e.g. Halophila, Lepilaena). Nevertheless, smaller species provide important services. Our findings point out data gaps, provide new insight for more efficient management and recommend caution in economic valuation of seagrass services worldwide.
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13
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Cheng HH, Whang LM, Wu SH. Enhanced bioenergy recovery from oil-extracted microalgae residues via two-step H2/CH4or H2/butanol anaerobic fermentation. Biotechnol J 2016; 11:375-83. [DOI: 10.1002/biot.201500285] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 09/14/2015] [Accepted: 12/10/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Hai-Hsuan Cheng
- Department of Environmental Engineering, National Cheng Kung University; Tainan Taiwan
| | - Liang-Ming Whang
- Department of Environmental Engineering, National Cheng Kung University; Tainan Taiwan
- Sustainable Environment Research Laboratory (SERL), National Cheng Kung University; Tainan Taiwan
- Research Center for Energy Technology and Strategy (RCETS), National Cheng Kung University; Tainan Taiwan
| | - Shu-Hsien Wu
- Department of Environmental Engineering, National Cheng Kung University; Tainan Taiwan
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Mininni C, Grassi F, Traversa A, Cocozza C, Parente A, Miano T, Santamaria P. Posidonia oceanica (L.) based compost as substrate for potted basil production. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2015; 95:2041-6. [PMID: 25228315 DOI: 10.1002/jsfa.6917] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 09/04/2014] [Accepted: 09/10/2014] [Indexed: 05/27/2023]
Abstract
BACKGROUND Peat is the main component of growing media but is also a non-renewable resource; therefore European policy strongly encourages the use of peat alternatives such as compost. Posidonia is a Mediterranean seagrass that produces very conspicuous onshore deposits that can be composted. In this study, a commercial green compost and a Posidonia residue-based compost were tested in order to assess their potential use as substitutes or complements to peat. RESULTS All macro and micro-element concentrations of the substrates were positively and significantly related to the percentage of composts in the growing media. Plant grown on peat showed higher content of P, Ca, K, Na, Cu, Mn, Zn and Fe, and a slightly higher biomass production in comparison to compost-based growing media. In contrast, plants grown on compost-based substrates showed lower uptake of Cd and Cr than peat. CONCLUSION The results indicate that both composts can be used as a complement to the peat for substrate preparation, especially at a rate of 30%. The Posidonia-based compost showed better productive results in comparison to the green one. Basil grown on the two compost-based media showed reduced absorption level of potentially toxic metals in comparison to peat.
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Affiliation(s)
- Carlo Mininni
- Istituto di Scienze delle Produzioni Alimentari (ISPA), Consiglio Nazionale delle Ricerche (CNR), Via Amendola 122/O, 70126, Bari, Italy
| | - Francesco Grassi
- Dipartimento di Scienze Agro-Ambientali e Territoriali, University of Bari 'Aldo Moro', Via Amendola 165/A, 70126, Bari, Italy
| | - Andreina Traversa
- Dipartimento di Scienze Agrarie, degli Alimenti e dell'Ambiente, University of Foggia, 71122, Foggia, Italy
| | - Claudio Cocozza
- Dipartimento di Scienze del Suolo, della Pianta e degli Alimenti, University of Bari 'Aldo Moro', Via Amendola 165/A, 70126, Bari, Italy
| | - Angelo Parente
- Istituto di Scienze delle Produzioni Alimentari (ISPA), Consiglio Nazionale delle Ricerche (CNR), Via Amendola 122/O, 70126, Bari, Italy
| | - Teodoro Miano
- Dipartimento di Scienze del Suolo, della Pianta e degli Alimenti, University of Bari 'Aldo Moro', Via Amendola 165/A, 70126, Bari, Italy
| | - Pietro Santamaria
- Dipartimento di Scienze Agro-Ambientali e Territoriali, University of Bari 'Aldo Moro', Via Amendola 165/A, 70126, Bari, Italy
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Han W, Clarke W, Pratt S. Composting of waste algae: a review. WASTE MANAGEMENT (NEW YORK, N.Y.) 2014; 34:1148-55. [PMID: 24602833 DOI: 10.1016/j.wasman.2014.01.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Revised: 01/17/2014] [Accepted: 01/25/2014] [Indexed: 06/03/2023]
Abstract
Although composting has been successfully used at pilot scale to manage waste algae removed from eutrophied water environments and the compost product applied as a fertiliser, clear guidelines are not available for full scale algae composting. The review reports on the application of composting to stabilize waste algae, which to date has mainly been macro-algae, and identifies the peculiarities of algae as a composting feedstock, these being: relatively low carbon to nitrogen (C/N) ratio, which can result in nitrogen loss as NH3 and even N2O; high moisture content and low porosity, which together make aeration challenging; potentially high salinity, which can have adverse consequence for composting; and potentially have high metals and toxin content, which can affect application of the product as a fertiliser. To overcome the challenges that these peculiarities impose co-compost materials can be employed.
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Affiliation(s)
- Wei Han
- School of Chemical Engineering, University of Queensland, Queensland, Australia
| | - William Clarke
- School of Chemical Engineering, University of Queensland, Queensland, Australia; School of Civil Engineering, University of Queensland, Queensland, Australia
| | - Steven Pratt
- School of Chemical Engineering, University of Queensland, Queensland, Australia.
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The use of banquettes of Posidonia oceanica as a source of fiber and minerals in ruminant nutrition. An observational study. Animal 2014; 8:1663-6. [DOI: 10.1017/s1751731114001505] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Pilavtepe M, Sargin S, Celiktas MS, Yesil-Celiktas O. An integrated process for conversion of Zostera marina residues to bioethanol. J Supercrit Fluids 2012. [DOI: 10.1016/j.supflu.2012.04.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Serrano O, Mateo MA, Dueñas-Bohórquez A, Renom P, López-Sáez JA, Martínez Cortizas A. The Posidonia oceanica marine sedimentary record: A Holocene archive of heavy metal pollution. THE SCIENCE OF THE TOTAL ENVIRONMENT 2011; 409:4831-4840. [PMID: 21889788 DOI: 10.1016/j.scitotenv.2011.08.001] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Revised: 07/06/2011] [Accepted: 08/01/2011] [Indexed: 05/31/2023]
Abstract
The study of a Posidonia oceanica mat (a peat-like marine sediment) core has provided a record of changes in heavy metal abundances (Fe, Mn, Ni, Cr, Cu, Pb, Cd, Zn, As and Al) since the Mid-Holocene (last 4470yr) in Portlligat Bay (NW Mediterranean). Metal contents were determined in P. oceanica. Both, the concentration records and the results of principal components analysis showed that metal pollution in the studied bay started ca. 2800yr BP and steadily increased until present. The increase in Fe, Cu, Pb, Cd, Zn and As concentrations since ca. 2800yr BP and in particular during Greek (ca. 2680-2465cal BP) and Roman (ca. 2150-1740cal BP) times shows an early anthropogenic pollution rise in the bay, which might be associated with large- and short-scale cultural and technological development. In the last ca. 1000yr the concentrations of heavy metals, mainly derived from anthropogenic activities, have significantly increased (e.g. from ~15 to 47μg g(-1) for Pb, ~23 to 95μg g(-1) for Zn and ~8 to 228μg g(-1) for As). Our study demonstrates for the first time the uniqueness of P. oceanica meadows as long-term archives of abundances, patterns, and trends of heavy metals during the Late Holocene in Mediterranean coastal ecosystems.
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Affiliation(s)
- O Serrano
- Centro de Estudios Avanzados de Blanes, c/Accés a la Cala St. Francesc, 14. 17300 Blanes, Girona, Spain.
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