NDLI: Effect of thermal pre-treatment on the availability of PAHs for successive chemical oxidation in contaminated soils

Content Provider	Springer Nature Link
Author	Usman, M. Chaudhary, A. Biache, C. Faure, P. Hanna, K.
Copyright Year	2015
Abstract	This is the premier study designed to evaluate the impact of thermal pre-treatment on the availability of polycyclic aromatic hydrocarbons (PAHs) for successive removal by chemical oxidation. Experiments were conducted in two soils having different PAH distribution originating from former coking plant sites (Homécourt, H, and Neuves Maisons, NM) located in northeast of France. Soil samples were pre-heated at 60, 100, and 150 °C for 1 week under inert atmosphere (N$_{2}$). Pre-heating resulted in slight removal of PAHs (<10 %) and loss of extractable organic matter (EOM). Then, these pre-heated soil samples were subjected to Fenton-like oxidation (H$_{2}$O$_{2}$ and magnetite) at room temperature. Chemical oxidation in soil without any pre-treatment showed almost no PAH degradation underscoring the unavailability of PAHs. However, chemical oxidation in pre-heated soils showed significant PAH degradation (19, 29, and 43 % in NM soil and 31, 36, and 47 % in H soil pre-treated at 60, 100, and 150 °C, respectively). No preferential removal of PAHs was observed after chemical oxidation in both soils. These results indicated the significant impact of pre-heating temperature on the availability of PAHs in contaminated soils and therefore may have strong implications in the remediation of contaminated soils especially where pollutant availability is a limiting factor.
Starting Page	1371
Ending Page	1380
Page Count	10
File Format	PDF
ISSN	09441344
Journal	Environmental Science and Pollution Research
Volume Number	23
Issue Number	2
e-ISSN	16147499
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-09-12
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	PAHs Temperature Availability Remediation Fenton oxidation Environment Environmental Chemistry Ecotoxicology Environmental Health Atmospheric Protection/Air Quality Control/Air Pollution Waste Water Technology Water Pollution Control Water Management Aquatic Pollution
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Health, Toxicology and Mutagenesis Pollution Medicine

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