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handle: 10261/89340
[ES]: Los composts de residuos sólidos urbanos (RSU) procedentes de la planta de tratamiento de Villarrasa (Huelva), elaborados a partir de recogida no selectiva de los residuos, poseen, en potencia, un poder fertilizante considerable y en general contenidos admisibles de metales pesados, pero han presentado ciertos aspectos negativos (alta relación carbono/nitrógeno, alta proporción de vidrio y otros inertes, elevada falta de madurez, y ocasionalmente contenidos elevados de cobre o plomo) que limitan considerablemente sus posibilidades de uso y por tanto su potencial mercado. Varios de estos inconvenientes pueden soslayarse cuidando el proceso de compostaje (mayor tiempo y control) o tomando ciertas precauciones en su aplicación (incorporación suficientemente anticipada, dosis moderadas, corrección de la fertilización mineral aplicada). Sin embargo, otros aspectos dependen sobre todo de la propia naturaleza de los RSU y sólo podrán ser corregidos en la medida en que sean implantados sistemas más eficaces de recogida selectiva.
[EN]: Municipal Solid Waste (MSW) composts from a recycling plant in Villarrasa (Huelva) wich are prepared with wastes collected without any selection process at origin, have, potentially, an important fertilising capacity and acceptable heavy metal contents. However, they also have certain undesirable features (high C/N ratio, excessive glass and impurity contents, and lack of maturity) that limit their use and reduce the potential market for the product. Some of these negative aspects could be avoided by improving the composting process (longer duration and control of different parameters) or following certain precautions before their application (earlier incorporation, moderate doses, correction of the applied mineral fertililization). Finally, other negative aspects depend mainly on the properties of the fresh MSW and can only be corrected by improving the efficiency of the selective waste collecting system.
Este trabajo ha sido financiado por la Consejería de Medio Ambiente de la Junta de Andalucía: Proyecto Producción y Utilización de compost de RSU
13 páginas, 3 figuras, 4 tablas, 26 referencias.
Peer reviewed
Heavy metals, Municipal solid waste, Composts, Madurez, Maturity, Metales pesados, Residuos sólidos urbanos
Heavy metals, Municipal solid waste, Composts, Madurez, Maturity, Metales pesados, Residuos sólidos urbanos
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