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http://hdl.handle.net/10201/49800
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Título: | Phyototoxicity and heavy metals speciation of stabilised sewage sludges |
Fecha de publicación: | 2004 |
Editorial: | Elsevier |
ISSN: | 0304-3894 |
Materias relacionadas: | 62 - Ingeniería. Tecnología |
Palabras clave: | Sewage sludge Heavy metals Sequential fractionation Phytotoxicity assay |
Resumen: | The presence of heavy metals in the sludges produced in wastewater treatment plants restricts their use for agricultural purposes. This study looks at different types of sludges (aerobic, anaerobic, unstabilised and sludge from a waste stabilisation pond) and compares the distribution of the heavy metals they contain according to the treatment that they have undergone. The sewage sludges were subjected to chemical characterisation and phytotoxicity testing, in absence of substrate, to provide a preliminary assessment of their suitability for land application. In addition, the total quantity of metals (Cd, Cr, Cu, Ca, K, Fe, Mg, Ni, Na, Pb and Zn) was determined. The BCR (Community Bureau of Reference) method for heavy metal speciation was followed. It was confirmed that the total concentration of heavy metals did not exceed the limits set out by European legislation and that the stabilisation treatment undergone by the sludges strongly influenced the heavy metal distribution and the phases to which they were associated. The sludge extracts did not exert any significant adverse effect on the relative seed germination (RSG) of barley (Hordeum vulgare L.) or cress (Lepidium sativum L.), although the reduction in germination index (GI) indicates that some characteristics existed did have an adverse effect on root growth. |
Autor/es principal/es: | Fuentes, Ana Llorens Pascual del Riquelme, Mercedes Sáez, José Aguilar Sanchís, María Isabel Ortuño Sandoval, Juan Francisco Meseguer Zapata, Víctor Francisco |
Facultad/Departamentos/Servicios: | Ingeniería Química |
Forma parte de: | Journal of Hazardous Materials, 108, 3, 2014 |
Versión del editor: | 10.1016/j.jhazmat..2004.02.014 |
URI: | http://hdl.handle.net/10201/49800 |
Tipo de documento: | info:eu-repo/semantics/article |
Número páginas / Extensión: | 27 |
Derechos: | info:eu-repo/semantics/openAccess |
Aparece en las colecciones: | Artículos: Ingeniería Química |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
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PHYTOTOXrev.pdf | 238,51 kB | Adobe PDF | ![]() Visualizar/Abrir |
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