Separation of coal-tar constituents from soil particles in a two-liquid-phase slurry system
(2003) In Environmental Technology 24(6). p.755-765- Abstract
- An evaluation has been made of the capability of rapeseed oil to dissolve polycyclic aromatic hydrocarbon (PAH) crystals in a biphasic system and of its capability to extract PAHs from polluted soil in a two-liquid-phase (TLP) slurry system. Up to 220 g l(-1) of the crystalline hydrocarbons could be dissolved in the organic phase, indicating oil/water-partitioning coefficients of 10(5). When soil from a former gasworks site was treated in a TLP slurry system, it was found that a certain critical amount of vegetable oil had to be added in order to form a free oil phase. Single and multiple extractions gave similar results for multiple short-term and single long-term treatments, with a maximum of 87% for pyrene release. Following a 30-day... (More)
- An evaluation has been made of the capability of rapeseed oil to dissolve polycyclic aromatic hydrocarbon (PAH) crystals in a biphasic system and of its capability to extract PAHs from polluted soil in a two-liquid-phase (TLP) slurry system. Up to 220 g l(-1) of the crystalline hydrocarbons could be dissolved in the organic phase, indicating oil/water-partitioning coefficients of 10(5). When soil from a former gasworks site was treated in a TLP slurry system, it was found that a certain critical amount of vegetable oil had to be added in order to form a free oil phase. Single and multiple extractions gave similar results for multiple short-term and single long-term treatments, with a maximum of 87% for pyrene release. Following a 30-day bioslurry treatment, the total concentration of the 16 EPA PAHs in the soil decreased from 2740 mg kg(-1) to 1366 mg kg(-1). This was followed by one of three different 12-day post-bioslurry treatments. Further bioslurry treatment reduced the final concentration to 1002 mg kg(-1). Abiotic treatment with a surfactant (Brij 30) achieved a reduction to 797 mg kg(-1). Treatment with rapeseed oil gave the best reduction to 343 mg kg(-1). (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/306123
- author
- Schuur, JHB and Mattiasson, Bo LU
- organization
- publishing date
- 2003
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- gasworks site, bioslurry, vegetable oil
- in
- Environmental Technology
- volume
- 24
- issue
- 6
- pages
- 755 - 765
- publisher
- Taylor & Francis
- external identifiers
-
- wos:000184174300012
- pmid:12868531
- scopus:0037629429
- ISSN
- 1479-487X
- language
- English
- LU publication?
- yes
- id
- 695790ab-2d7b-4f5f-88ee-7660f8ed1f70 (old id 306123)
- alternative location
- http://www.ingentaconnect.com/content/selp/envt/2003/00000024/00000006/art00012
- date added to LUP
- 2016-04-01 12:07:51
- date last changed
- 2022-01-26 23:14:06
@article{695790ab-2d7b-4f5f-88ee-7660f8ed1f70,
abstract = {{An evaluation has been made of the capability of rapeseed oil to dissolve polycyclic aromatic hydrocarbon (PAH) crystals in a biphasic system and of its capability to extract PAHs from polluted soil in a two-liquid-phase (TLP) slurry system. Up to 220 g l(-1) of the crystalline hydrocarbons could be dissolved in the organic phase, indicating oil/water-partitioning coefficients of 10(5). When soil from a former gasworks site was treated in a TLP slurry system, it was found that a certain critical amount of vegetable oil had to be added in order to form a free oil phase. Single and multiple extractions gave similar results for multiple short-term and single long-term treatments, with a maximum of 87% for pyrene release. Following a 30-day bioslurry treatment, the total concentration of the 16 EPA PAHs in the soil decreased from 2740 mg kg(-1) to 1366 mg kg(-1). This was followed by one of three different 12-day post-bioslurry treatments. Further bioslurry treatment reduced the final concentration to 1002 mg kg(-1). Abiotic treatment with a surfactant (Brij 30) achieved a reduction to 797 mg kg(-1). Treatment with rapeseed oil gave the best reduction to 343 mg kg(-1).}},
author = {{Schuur, JHB and Mattiasson, Bo}},
issn = {{1479-487X}},
keywords = {{gasworks site; bioslurry; vegetable oil}},
language = {{eng}},
number = {{6}},
pages = {{755--765}},
publisher = {{Taylor & Francis}},
series = {{Environmental Technology}},
title = {{Separation of coal-tar constituents from soil particles in a two-liquid-phase slurry system}},
url = {{http://www.ingentaconnect.com/content/selp/envt/2003/00000024/00000006/art00012}},
volume = {{24}},
year = {{2003}},
}