e-journal

PAHs soil decontamination in two steps: Desorption and electrochemical treatment

---

Abstract.
The presence of carcinogenic polycyclic aromatic hydrocarbons (PAHs) in soils poses a potential threat to
human health if exposure levels are too high. Nevertheless, the removal of these contaminants presents
a challenge to scientists and engineers. The high hydrophobic nature of PAHs enables their strong sorption
onto soil or sediments. Thus, the use of surfactants could favour the release of sorbed hydrophobic
organic compounds from contaminated soils. In this work, five surfactants, namely Brij 35, Tergitol NP10,
Tween 20, Tween 80 and Tyloxapol, are evaluated on the desorption of PAHs [benzanthracene (BzA),
fluoranthene (FLU), and pyrene (PYR), single and in mixture] from a model sample such as kaolin. In all
cases, the best results were obtained when Tween 80 was employed. In order to obtain the global decontamination of PAHs, their electrochemical degradation is investigated. It is concluded that the order of
increasing degradation for single compounds is BzA > FLU > PYR when they are subject to the same electrochemical treatment. In addition, there is a direct relationship between the ionization potential and the electrochemical degradation of PAH.

Keywords:
Benzanthracene
Electrochemical treatment
Desorption
Fluoranthene
PAHs
Pyrene
Surfactants

---

Ketersediaan

Tidak ada salinan data

Informasi Detail

Judul Seri

Journal of Hazardous Materials

No. Panggil

-

Penerbit

London : Elsevier B.V.., 2009

Deskripsi Fisik

Journal of Hazardous Materials 166 (2009) 462–468

Bahasa

English

ISBN/ISSN

-

Klasifikasi

-

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

LINGKUNGAN HIDUP

Info Detail Spesifik

-

Pernyataan Tanggungjawab

agus

Versi lain/terkait

Lampiran Berkas

Komentar

---

Anda harus masuk sebelum memberikan komentar