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Leaching of polycyclic aromatic hydrocarbons from oil shale processing waste deposit: A long-term field study
被引:15
作者:
Jefimova, Jekaterina
[1
,2
]
Irha, Natalya
[1
]
Reinik, Janek
[1
]
Kirso, Uuve
[1
]
Steinnes, Eiliv
[3
]
机构:
[1] NICPB, EE-12618 Tallinn, Estonia
[2] Univ Tartu, Inst Chem, EE-50411 Tartu, Estonia
[3] Norwegian Univ Sci & Technol, Dept Chem, N-7491 Trondheim, Norway
关键词:
PAHs;
Field study;
Spent shale;
Industrial wastes;
Leaching;
SOLID-PHASE MICROEXTRACTION;
POLYCHLORINATED-BIPHENYLS;
BEHAVIOR;
SOIL;
SEDIMENTS;
SEMICOKE;
TESTS;
PAHS;
D O I:
10.1016/j.scitotenv.2014.02.105
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
The leaching behavior of selected polycyclic aromatic hydrocarbons (PAHs) from an oil shale processing waste deposit was monitored during 2005-2009. Samples were collected from the deposit using a special device for leachate sampling at field conditions without disturbance of the upper layers. Contents of 16 priority PAHs in leachate samples collected from aged and fresh parts of the deposit were determined by GC-MS. The sum of the detected PAHs in leachates varied significantly throughout the study period: 19-315 mu g/l from aged spent shale, and 36-151 mu g/1 from fresh spent shale. Among the studied PAHs the low-molecular weight compounds phenanthrene, naphthalene, acenaphthylene, and anthracene predominated. Among the high-molecular weight PAHs benzo[a]lanthracene and pyrene leached in the highest concentrations. A spent shale deposit is a source of PAHs that could infiltrate into the surrounding environment for a long period of time. (C) 2014 Elsevier B.V. All rights reserved.
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页码:605 / 610
页数:6
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