LANDFARMING IN A PAH-CONTAMINATED SOIL.

Autor: Picado, Ana, Nogueira, Anabela, Baeta-Hall, Lina, Mendonça, Elsa, de Fátima Rodrigues, Maria, do Céu Sàágua, Maria, Martins, Aida, Anselmo, Ana
Předmět:
Zdroj: Journal of Environmental Science & Health. Part A. Toxic/Hazardous Substances & Environmental Engineering; Oct2001, Vol. 36 Issue 9, pN, 1p
Abstrakt: The present work describes a coke oven soil treatability study by landfarming, conducted on-site in a field scale facility covering 100 m[SUP2]. The soil contamination was mainly due to high concentrations of polynuclear aromatic hydrocarbons (PAHs) up to 1140 mg/Kg dry weight (ΣEPA). Along the treatment process the soil was characterised at the chemical, microbiological and ecotoxicological levels. After 3 months a reduction of 63% in total PAHs concentration was observed, being detected a more pronounced reduction for PAHs with 2, 3 and 4 rings (79%). Concomitantly, a change in the composition of the microbial population was observed with a significant increase in the PAHs degrading and total heterotrophic colonies. Concerning the ecotoxicity and genotoxicity data no effect was detected in the treated soil samples eluates. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index