Abstract
The extraordinary accumulation of deposits of the seaweed Posidonia oceanica on the beaches of Sardinia has given rise to a series of problems linked to its disposal. Leafy deposits of Posidonia oceanica are treated as refuse and disposed of in waste dumps. This is an enormous waste of organic material.
Bearing this in mind, some composting experiments have been carried out using washed Posidonia oceanica, sludge and woody residues. The selected substrates were categorised and then mixed homogeneously, according to the previously established parameters, to obtain different mixtures which would satisfy the preliminary physical and chemical conditions for correct composting. The experiment was conducted using an open system with natural ventilation.
The final assessment of the chemical parameter values of the compost showed a good carbon, nitrogen and phosphorus content and a balanced C/N ratio. The degree of humification was raised appreciably, which indicated that the material had reached a high level of stability. The parameters for the physical characteristics (porosity, apparent density, easily available water and reserve water, etc.) were within the acceptable limits. No pathogenic microorganisms were found, which indicates that the compost was healthy, and the heavy metal content, in particular that of thallium, cadmium, chromium and lead, was below the levels established by law. These results offer an innovative solution to the disposal of Posidonia oceanica which would otherwise be taken to waste dumps, and offers undoubted advantages for the coastal communities interested in this problem.
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References
Adani F, Genevini P L, Gasperi F, Tambone F (1999) Composting and humification. Compost Sci Util 7: 24 — 33
Baldissera Nordio C, Gallarati Scotti G C (1967) Sulla composizione chimica delle foglie di Posidonia oceanica raccolte in varie epoche località e profondità. Atti Soc Ital Sci Vet XXI: 1 — 5
Chefetz B, Adani F, Genevini P L, Tambone F, Hadar Yitzhak, Yona Chen (1998) Humicacid transformation during composting of municipal waste. J Environ Qual 27: 794 —800
Ciavatta C, Antisari L V, Sequi P (1988) A first approach to the characterisation of the presence of humified materials in organic fertilisers. Agrochimica 32: 510 — 517
De Boodt M, Verdonck 0 (1974) Method for measuring the water release curve of organic substrates. Acta Hort 37: 2054 — 2061
Ghabbour E A, Khairy A H, Cheney D P, Gross V, Davies G, Gilbert T R, Zhang X (1994) Isolation of humic acid from the brown alga Pilayella littoralis. J Appl Phycol 6: 459 —468
Helfrich P, Chefetz B, Hadar Y, Chen Y, Schnabl H (1998) A novel method for determining phytotoxicity in composts. Compost Sci Util 6 (3): 6 — 13
Illera V, Walter I, Cuevas G, Cala V (1999) Biosolid and municipal solid waste effects on physical and chemical properties of a degraded soil. Agrochimica XLIII: 178–186
Martilotti F, Antongiovanni M, Rizzi L, Santi E (1987) Metodi di analisi per la valutazione degli alimenti di impiego zootecnico. Quad Metodol 8 IPRA: 122–134
Melis P, Cattivello C (1999) Valutazioni analitiche e colturali su alcuni substrati di coltivazione. Colt Protette 4: 65 — 70
Melis P, Castaldi P, Melis A (1999a) Caratteristiche fisiche e chimiche di substrati di coltivazione a base di compost derivato da rifiuti dell’attività agroindustriale e civile ed effetti sulle specie coltivate. Ricicla 99: 476 — 481
Melis P, Mulè P, Senette C, Castaldi P (1999b) The use of quality compost from olive milling waste in the preparation of growing media in floriculture. Proc Int Composting Symp 19 —23 September 1999 Halifax/Dartmouth Nova Scotia, Canada: 905 — 916
Michaelson G J, Ping C L (1997) Comparison of 0.1 N sodium hydroxide with 0.1 M sodium pyrophosphate in the extraction of soil organic matter from various soil horizons. Commun Soil Sci Plant Anal 28: 1141 — 1150
Min Agricoltura e Foreste D M (1989) Metodi Ufficiali di analisi per i fertilizzanti. Suppl n 1 G U della Repubblica Italiana del 23/ 8/ 1989: 40 — 47
Min Agricoltura e Foreste (1991) Metodi ufficiali di analisi per i fertilizzanti. Suppl n 2 G U della Repubblica Italiana del 4/ 2/ 1991: 31–39
Nappi P, Vincenzino E, Barberis R (1990) Criteri per la valutazione della qualità dei compost. Acqua Aria 3: 261 — 268
Piccolo A, Pietramellara G, Mbagwu J S C (1997) Use of humic substances as soil conditioners to increase aggregate stability. Geoderma 75: 267 — 277
Regione Piemonte (1992) Metodi di analisi dei compost. Collana Ambiente 6: 29–49
Sequi P, De Nobili M, Leita L, Cercignani G (1986) A new index of humification. Agrochimica, 30: 175
Szmidt RAK (1997) Composting processing residuals of seaweed (Ascophyllum nodosum). Compost Sci Util 5: 78 — 86
Thelin I, Giorgi J (1984) Production de feuilles dans un herbier superficiel a Posidonia oceanica, evaluée par une methode derivée de la methode de Zieman. Int Workshop Posidonia oceanica 1: 271 — 276
Watanabe A, Kuwatsuka S (1992) Chemical characteristics of soil fulvic acids fractionated using polyvinilpyrrolidone (PVP). Soil Sci Plant Nutr 38: 31 — 41
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© 2002 Springer-Verlag Berlin Heidelberg
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Castaldi, P., Melis, P. (2002). Composting of Posidonia oceanica and Its Use in Agriculture. In: Insam, H., Riddech, N., Klammer, S. (eds) Microbiology of Composting. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-08724-4_35
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DOI: https://doi.org/10.1007/978-3-662-08724-4_35
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