New Uses of Treated Urban Waste Digestates on Stimulation of Hydroponically Grown Tomato (Solanum lycopersicon L.)
| Autor: | N. Carreras, Enrique Eymar, Jaime Cuevas, Begoña Mayans, Rafael Antón-Herrero, Carlos García-Delgado, M. Alonso-Izquierdo, Raquel Camacho-Arévalo |
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| Přispěvatelé: | UAM. Departamento de Geología y Geoquímica, UAM. Departamento de Química Agrícola, Ayuntamiento de Madrid, Antón Herrero, Rafael, García Delgado, Carlos, Cuevas, Jaime, Carreras, Nely, Mayans, Begoña, Camacho-Arévalo, R., Eymar, Enrique, Antón Herrero, Rafael [0000-0002-6244-5449], García Delgado, Carlos [0000-0001-9358-361X], Cuevas, Jaime [ 0000-0001-6327-1404], Carreras, Nely [0000-0002-3309-4889], Mayans, Begoña [0000-0002-0563-135X], Camacho-Arévalo, R. [0000-0003-1641-7161], Eymar, Enrique [0000-0003-4982-1216] |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Nutrient cycle Environmental Engineering 020209 energy 02 engineering and technology Raw material 01 natural sciences Lycopersicon Anaerobic digestate Nutrient 010608 biotechnology 0202 electrical engineering electronic engineering information engineering Geología Organic matter Waste Management and Disposal chemistry.chemical_classification biology Nutrient recycling Renewable Energy Sustainability and the Environment Química biology.organism_classification Pulp and paper industry Waste treatment Biostimulant Anaerobic digestion Biostimulants chemistry Municipal solid wastes Solanum |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname Biblos-e Archivo. Repositorio Institucional de la UAM |
| ISSN: | 1877-265X 1877-2641 |
| DOI: | 10.1007/s12649-020-01137-8 |
| Popis: | 26 páginas, 5 tablas, 3 figuras. -- This is a post-peer-review, pre-copyedit version of an article published in Waste and Biomass Valorization. The final authenticated version is available online at: http://dx.doi.org/10.1007/s12649-020-01137-8 One strategy to re-use solid urban wastes is the production of energy by anaerobic digestion. This process also generates high volume of digestates, which are frequently disposal in landfills. The aim of this work is to assess anaerobic digestates as agricultural inputs. Three different biomethanation wastes from different plants were collected. Firstly, a complete physico-chemical characterization of the wastes was done according to the Spanish regulation, showing that the materials had the 90% of the particles below 25 mm, high values of pH, electric conductivity, organic matter, humic acids and soluble nutrients such as NO3−, SO42−, Ca2+, Mg2+, PO43− and K+. Total concentrations of heavy metals and microbiological parameters were below the threshold levels allowed for agricultural use. The wastes were then treated with a strong acid and a strong base having two different solutions (ATr and BTr, respectively) which were evaluated as biostimulants for tomato plants in hydroponic culture. Those liquid extracts, ATr and BTr, demonstrated their biostimulant ability towards root system of tomato enhancing the hair root density and plant biometric parameters including plants weight and chlorophyll content. This work demonstrates the re-use feasibility of treated digestates in agriculture as fertilizers and more over as feedstock for biostimulants production. The city Hall of Madrid funded this work. |
| Databáze: | OpenAIRE |
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