Reduced bioavailability of polycyclic aromatic hydrocarbons (PAHs) in sediments impacted by carbon manufacturing plant effluent: Evaluation by ex situ passive sampling method

Bioremediation of contaminated soils has gained increasing interest in recent years as a low-cost and environmentally friendly technology to clean soils polluted with anthropogenic contaminants. However, some organic pollutants in soil have a low biodegradability or are not bioavailable, which hampers the use of bioremediation for their removal. This is the case of polycyclic aromatic hydrocarbons (PAHs), which normally are stable and hydrophobic chemical structures. In this review, several approaches for the decontamination of PAH-polluted soil are presented and discussed in detail. The use of compost as biostimulation- and bioaugmentation-coupled technologies are described in detail, and some parameters, such as the stability of compost, deserve special attention to obtain better results. Composting as an ex situ technology, with the use of some specific products like surfactants, is also discussed. In summary, the use of compost and composting are promising technologies (in all the approaches presented) for the bioremediation of PAH-contaminated soils.

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Monitoring of Occupational Exposure to Polycyclic Aromatic Hydrocarbons in a Carbon-electrode Manufacturing Plant

The Annals of Occupational Hygiene ◽

10.1093/annhyg/42.2.105 ◽

1998 ◽

Cited By ~ 9

Keyword(s):

Polycyclic Aromatic Hydrocarbons ◽

Occupational Exposure ◽

Aromatic Hydrocarbons ◽

Carbon Electrode ◽

Manufacturing Plant ◽

Polycyclic Aromatic

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Ex-situ bioremediation of polycyclic aromatic hydrocarbons in sewage sludge

Environmental Toxicology II ◽

10.2495/etox080201 ◽

2008 ◽

Author(s):

J. E. Schmidt ◽

S. B. Larsen ◽

D. Karakashev

Keyword(s):

Polycyclic Aromatic Hydrocarbons ◽

Sewage Sludge ◽

Aromatic Hydrocarbons ◽

Ex Situ ◽

Polycyclic Aromatic

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Bioengineered Approach for Ex situ Vermiextraction of Acenaphthylene, Benzo (E)Pyrene and Benzo (Ghi) Perylene Soil Contamination

Current Journal of Applied Science and Technology ◽

10.9734/cjast/2021/v40i3231556 ◽

2021 ◽

pp. 29-36

Author(s):

C. Fawole ◽

S. J. Salami ◽

D. A. Dashak ◽

H. A. Chimezie-Nwosu

Keyword(s):

Polycyclic Aromatic Hydrocarbons ◽

Organic Pollutants ◽

Persistent Organic Pollutants ◽

Aromatic Hydrocarbons ◽

Contaminated Soil ◽

Analytical Procedure ◽

Ex Situ ◽

Polycyclic Aromatic ◽

Petroleum Contaminated Soil ◽

Us Epa

The ex situ study of vermiextraction of Acenaphthylene (AcPY), Benzo(e)pyrene (BeP) and Benzo(ghi)perylene (BP) form constructed vermiculture containing petroleum contaminated soil (8.00±0.01, 9.80±0.00 and 5.02±0.00 mg/kg respectively) and vermiaccumulation (AcPY, 1.05±0.00, BeP, 2.01±0.00 and BP, 1.73±0.00 mg/kg) by Esenia fetida squirms with mean vermiremoval efficiency of 100% while vermiconversions were AcPY, 86.88, BeP, 79.49 and BP, 65.54%. The identification and quantification of the 3 polycyclic aromatic hydrocarbons (3PAHs) were performed by GS/MD in accordance with analytical procedure of US. EPA 8270; 625. The bioengineered approach by E. fetida squirms in the vermiculture proved effective to detoxify and remove the persistent organic pollutants of the 3PAHs. The ex situ study of vermiextraction of Acenaphthylene (AcPY), Benzo(e)pyrene (BeP) and Benzo(ghi)perylene (BP) form constructed vermiculture containing petroleum contaminated soil (8.00±0.01, 9.80±0.00 and 5.02±0.00 mg/kg respectively) and vermiaccumulation (AcPY, 1.05±0.00, BeP, 2.01±0.00 and BP, 1.73±0.00 mg/kg) by Esenia fetida squirms with mean vermiremoval efficiency of 100% while vermiconversions were AcPY, 86.88, BeP, 79.49 and BP, 65.54%. The identification and quantification of the 3 polycyclic aromatic hydrocarbons (3PAHs) were performed by GS/MD in accordance with analytical procedure of US. EPA 8270; 625. The bioengineered approach by E. fetida squirms in the vermiculture proved effective to detoxify and remove the persistent organic pollutants of the 3PAHs.

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