Marks E.A.N., Kinigopoulou V., Arkout H., Azzaz A.A., Doulgeris C., Jellali S., Rad C., Sanchez Zulueta P., Tziritis E., El-Bassi L., Matei Ghimbeu C., Jeguirim M. (2020). Potential for production of biochar-based fertilizers from olive mill waste in mediterranean basin countries : an initial assessment for Spain, Tunisia, and Greece. Sustainability, 01/08/2020, vol. 12, n. 15, p. 1-15.
https://doi.org/10.3390/su12156081
https://doi.org/10.3390/su12156081
Titre : | Potential for production of biochar-based fertilizers from olive mill waste in mediterranean basin countries : an initial assessment for Spain, Tunisia, and Greece (2020) |
Auteurs : | E.A.N. Marks ; V. Kinigopoulou ; H. Arkout ; A.A. Azzaz ; C. Doulgeris ; S. Jellali ; C. Rad ; P. Sanchez Zulueta ; E. Tziritis ; L. El-Bassi ; C. Matei Ghimbeu ; M. Jeguirim |
Type de document : | Article |
Dans : | Sustainability (vol. 12, n. 15, August 2020) |
Article en page(s) : | p. 1-15 |
Langues : | Anglais |
Langues du résumé : | Anglais |
Catégories : |
Catégories principales 06 - AGRICULTURE. FORÊTS. PÊCHES ; 6.6 - Technique Agricole (sols, engrais, mécanisation)Thésaurus IAMM ENGRAIS ; GESTION DES DECHETS ; UTILISATION DES DECHETS ; DECHET AGRICOLE ; MOULIN ; EAU USEE ; AMENDEMENT DU SOL ; BIOMASSE ; SUBSTANCE NUTRITIVE ; REGION MEDITERRANEENNE ; GRECE ; TUNISIE ; ESPAGNE |
Résumé : | Olive mill wastes continue to be a management challenge due to the large volumes produced, particularly due to their toxicity and impacts on the environment. Thermal conversion through pyrolysis or hydrothermal carbonization techniques can detoxify wastes while conserving nutrient contents. In this work, we produced up-to-date data on olive mill waste flows in Spain, Tunisia, and Greece and characterized representative samples in the laboratory. Assays of thermal conversion of olive mill wastewaters and solid wastes were also performed to understand biochar yields and final properties, and the total quantities of nutrients contained were estimated. Of particular note were the quantities of potassium in Tunisian wastewaters, representing 0.6% of the total mass and an annual flow of approximately 5000 t, and in the Spanish solid wastes, an average of 1.7% of the total mass is potassium, representing an annual flow of approximately 23,000 t. Concerning phosphorus, Spanish solid wastes had the highest contents (0.1%), double that of other countries wastes. Annually, olive mill wastes from the three countries are estimated to contain approximately 35 × 103 tons of potassium and 2.6 × 103 tons of phosphorus. With this resource converted to biochar, each year more than 700 km2 of soils could be enriched in 0.2% carbon with biochar at an application rate of 7 t ha−1. |
Cote : | En ligne |
URL / DOI : | https://doi.org/10.3390/su12156081 |