Effects of compost stability and contaminant concentration on the bioremediation of PAHs contaminated soil through composting
Sayara, Tahseen A. S. (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Sarrà i Adroguer, Montserrat (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)
Sanchez, Antoni (Universitat Autònoma de Barcelona. Departament d'Enginyeria Química, Biològica i Ambiental)

Fecha:	2010
Resumen:	The objective of this study was to investigate the effect of two factors: the stability degree (0. 37-4. 55 mg O₂ g⁻¹ Organic Matter h⁻¹) of different composts derived from the organic fraction of municipal solid wastes and the concentration of a complex mixture of PAHs including flourene, phenanthrene, anthracene, flouranthene, pyrene and benzo(a)anthracene in the bioremediation of soil. The two factors were systematically studied applying central composite design methodology. The obtained results demonstrated that compost stability degree was particularly important during the first stage of the process. Stable composts enhanced the levels of degradation in soil-compost mixture and a degradation rate of 92% was achieved in this period, but only 40% was degraded with the least stable compost. The PAHs concentration was also important during the process, since the degradation rates increased with the increase in the PAHs concentration. Moreover, all the individual PAHs demonstrated a notable decrease in their concentrations after the incubation period, but pyrene was degraded to lower levels in some treatments compared to others PAHs.
Ayudas:	Ministerio de Ciencia e Innovación CTM2009-14073-C02-01
Derechos:	Tots els drets reservats.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió sotmesa a revisió
Materia:	Compost ; Polycyclic aromatic hydrocarbons (PAHs) ; Soil ; Stability; ; 18 Experimental design
Publicado en:	Journal of hazardous materials, Vol 179, Issues 1-3 (July 2010) , p. 999-1006, ISSN 0304-3894

DOI: 10.1016/j.jhazmat.2010.03.104

Pre-print 32 p, 804.4 KB

El registro aparece en las colecciones:
Documentos de investigación > Documentos de los grupos de investigación de la UAB > Centros y grupos de investigación (producción científica) > Ingeniería > Grupo de Investigación en Compostaje (GICOM)
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