Removal of Polycyclic Aromatic Hydrocarbons (PAHs) from Industrial Soil with Solar and UV Light

2018 ◽  
Vol 40 (4) ◽  
pp. 1238-1250 ◽  
Author(s):  
Gizem Eker ◽  
Burcu Sengul
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Uv Light ◽  
Industrial Soil ◽  
Polycyclic Aromatic

An environmentally friendly method for the determination of polycyclic aromatic hydrocarbons in different soil typologies

2019 ◽  
Vol 16 (7) ◽  
pp. 517
Author(s):  
Flavia De Nicola ◽  
Estefanía Concha-Graña ◽  
Enrica Picariello ◽  
Valeria Memoli ◽  
Giulia Maisto ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Human Health ◽  
Aromatic Hydrocarbons ◽  
Analytical Method ◽  
Solid Phase ◽  
Environmentally Friendly ◽  
Limit Of Quantification ◽  
Industrial Soil ◽  
Relative Standard ◽  
Polycyclic Aromatic

Environmental contextPolycyclic aromatic hydrocarbons (PAHs) are widespread organic pollutants that tend to accumulate in soil. We developed an environmentally friendly analytical method for PAHs to evaluate human health risks associated with their presence in soils. The method is feasible for the analysis of soils with widely varying PAH contamination levels, and is well suited to environmental monitoring studies of relevance to human health. AbstractA microwave-assisted extraction, with a dispersive solid-phase purification step followed by programmed temperature vaporisation–gas chromatography–tandem mass spectrometry, is proposed as an environmentally friendly, simple and cheap analytical method for polycyclic aromatic hydrocarbons (PAHs) in soil. Different extraction and clean-up operating variables were tested to achieve satisfactory analytical performances: trueness from 92 to 114%, limit of quantification (LOQ) from 0.4 to 2µgkg−1 for most PAHs and intermediate precision, calculated as relative standard deviation (RSD), below 10%. The method was validated using both Certified Reference Material and real soil samples collected at sites subjected to different human activities. PAH contents ranged from 0.11 (in holm oak forest soil) to 1mgkg−1 d.w. (in an industrial soil) according to the anthropic gradient. The soil PAH contents measured were used to estimate the risk to human health, which suggested the exposure to the PAHs in soil as a potential risk for human health, especially at the industrial site. The feasibility of the method for soils with different PAH contamination degrees makes it relevant in monitoring programs.

scholarly journals PHOTOLYSIS OF FLUORENE AND 9-FLUORENONE A TOXIC ENVIRONMENTAL CONTAMINANT: STUDIES IN THE EFFECT OF SOLVENT AND INTENSITY OF THE SOURCE

2020 ◽  
Vol 4 (12) ◽  
pp. 55-59
Author(s):  
Rekha Nagwanshi ◽  
Dr. Jeeven Singh Solanki ◽  
Sandhya Bageriab ◽  
Shubha Jain
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Uv Light ◽  
Environmental Contaminant ◽  
Effect Of Solvent ◽  
Polycyclic Aromatic ◽  
Effect Of Light

Polycyclic aromatic hydrocarbons (PAHs) are a class of genotoxic environmentalcontaminants and are always exposed to solar radiations. Fluorenes are important PAHswidely distributed in nature and hence the studies in the effect of light on them are of ulmostsignificance. Therefore in this paper, we have studied the photo irradiations of fluorene (1)and 9-fluorenone (2) with UV light in different solvents, which results in the formation ofdifferent products.

scholarly journals Polycyclic aromatic hydrocarbons and pesticides in soil of Vojvodina

2004 ◽  
pp. 93-100 ◽  
Author(s):  
Mira Pucarevic ◽  
Petar Sekulic
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Vegetable Crops ◽  
Industrial Soil ◽  
Polycyclic Aromatic ◽  
Novi Sad ◽  
Persistent Pesticides ◽  
Vojvodina Province ◽  
Long Term Studies

The paper deals with several groups of compounds that represent the most frequent pollutants of soil in the world. The paper also reviews results of long-term studies conducted at the Institute of Field and Vegetable Crops in Novi Sad on the residues of pesticides and polycyclic aromatic hydrocarbons (PAHs) in the soil of the Vojvodina Province. The analyzed samples have been found to contain residues of persistent pesticides and their metabolites lindane and its metabolites 6,20 ?g/kg, alachlor 3,56 ?g/kg, aldrin 2,3 ?g/kg, heptachlor epoxide 0,99 ?g/kg, chlordane 3,82 ?g/kg, DDT and its metabolites 10,77 ?g/kg, dieldrin 2,04 ?g/kg, endrin 3,57 ?g/kg and endrin aldehyde 1,36 ?g/kg. Soil samples from Novi Sad municipality contained 53,69 ?g/kg of DDT and its metabolites. The values of atrazine ranged from 0,0005 to 0,8 mg/kg. The values of PAHs were 6,64 mg/kg in industrial soil, 4,93 mg/kg in agricultural soil, and 4,55 mg/kg and 5,48 mg/kg in the Novi Sad municipality. The lowest value, 0.83 mg/kg, was found for nonagricultural/nonindustrial soils.

Removal of polycyclic aromatic hydrocarbons from municipal sludge using UV light

2012 ◽  
Vol 44 (1-3) ◽  
pp. 324-333 ◽  
Author(s):  
Nezih Kamil Salihoglu ◽  
Gizem Karaca ◽  
Güray Salihoglu ◽  
Yücel Tasdemir
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Uv Light ◽  
Municipal Sludge ◽  
Polycyclic Aromatic

Effect of UV Intensity and Wavelengh on Photocatalytic Degradation of Polycyclic Aromatic Hydrocarbons

2011 ◽  
Vol 233-235 ◽  
pp. 466-469
Author(s):  
Li Hong Zhang ◽  
Cheng Bin Xu ◽  
Zhong Lin Chen ◽  
Xue Mei Li
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Photocatalytic Degradation ◽  
Light Source ◽  
Uv Irradiation ◽  
Aromatic Hydrocarbons ◽  
Uv Light ◽  
Irradiation Intensity ◽  
Degradation Rates ◽  
Polycyclic Aromatic

The photocatalytic degradation of pyrene (PYRE) and benzo[a]pyrene (BaP) on soil surfaces in the presence of Fe2O3 using ultraviolet (UV) light source was investigated in a photo chamber, in which the temperature was maintained 30 . The effects of UV irradiation intensity and UV wavelength on the degradation performance of polycyclic aromatic hydrocarbons (PAHs) were studied. The results show that with the intensity of UV irradiation being enhanced, the photocatalytic degradation rates of PAHs were increased. Photocatalytic degradation rates of PYRE and BaP on soil surfaces with 5% Fe2O3 were different at UV irradiation wavelengths of 254, 310 and 365 nm, respectively.

Photocatalytic Degradation of Polycyclic Aromatic Hydrocarbons on Soil Surfaces Using Fe2O3 under UV Light

2011 ◽  
Vol 189-193 ◽  
pp. 420-423 ◽  
Author(s):  
Li Hong Zhang ◽  
Nan Jia ◽  
Cheng Bin Xu ◽  
Xue Mei Li
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Humic Acid ◽  
Photocatalytic Degradation ◽  
Aromatic Hydrocarbons ◽  
Uv Light ◽  
First Order Kinetics ◽  
Degradation Rates ◽  
Polycyclic Aromatic ◽  
Alkaline Conditions ◽  
Neutral Conditions

The photocatalytic degradation of phenanthrene (PHE), pyrene (PYRE) and benzo[a]pyrene (BaP) on soil surfaces in the presence of Fe2O3 using ultraviolet (UV) light source was investigated. The effects of various factors, namely Fe2O3, soil pH, and humic acid, on the degradation performance of polycyclic aromatic hydrocarbons (PAHs) were studied. The results show that photocatalytic degradation of PAHs follows the pseudo-first-order kinetics. Catalyst Fe2O3 accelerated the photodegradation of PHE, PYRE and BaP significantly. In acidic or alkaline conditions, the photocatalytic degradation rates of the PAHs were greater than those in neutral conditions. Humic acid significantly enhanced the PAH photocatalytic degradation by sensitizing radicals capable of oxidizing PAHs.

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