Release of Polycyclic Aromatic Hydrocarbons, Dissolved Organic Carbon, and Suspended Matter from Disturbed NAPL-Contaminated Gravelly Soil Material

2006 ◽  
Vol 5 (1) ◽  
pp. 469-479 ◽  
Author(s):  
Kai Uwe Totsche ◽  
Steffen Jann ◽  
Ingrid Kögel-Knabner
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Aromatic Hydrocarbons ◽  
Suspended Matter ◽  
Soil Material ◽  
Gravelly Soil ◽  
Polycyclic Aromatic

scholarly journals Contamination of Arctic Lakes with Persistent Toxic PAH Substances in the NW Part of Wedel Jarlsberg Land (Bellsund, Svalbard)

Water ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 411
Author(s):  
Sara Lehmann-Konera ◽  
Marek Ruman ◽  
Łukasz Franczak ◽  
Żaneta Polkowska
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Phenolic Compounds ◽  
Organic Compound ◽  
Organic Carbon ◽  
Chemical Analysis ◽  
Dissolved Organic Carbon ◽  
Aromatic Hydrocarbons ◽  
Arctic Lakes ◽  
Polar Regions ◽  
Polycyclic Aromatic

The expansion of glacier-free areas in polar regions favours the appearance of lakes in the non-glaciated parts of glacier basins. This paper presents the differentiation of organic compound concentrations in fifty-four Arctic lakes collected in four locations (Logne Valley, in the vicinity of the Scott, Renard and Antonia glaciers). We cover meteorological measurements, chemical analysis of sixteen dioxin-like compounds (Polycyclic Aromatic Hydrocarbons (PAHs)), formaldehyde (HCHO), sum parameters of phenolic compounds (∑phenols) and dissolved organic carbon (DOC). The most contaminated with PAH compounds were lakes exposed to the influence of the Greenland Sea (Logne Valley lakes) and to the prevailing winds (Scott and Renard lakes). Interpretation of the PAH compounds results allowed for identification of pyrogenic sources as the main sources of PAH compounds in the year 2012. The highest levels of HCHO and ∑phenols were observed for the Scott lakes, while the highest DOC levels were noted in Antonia lakes.

Effects of meteorology on diurnal and nocturnal levels of priority polycyclic aromatic hydrocarbons and elemental and organic carbon in PM10 at a source and a receptor area in Mexico City

2009 ◽  
Vol 43 (17) ◽  
pp. 2693-2699 ◽  
Author(s):  
Diana Guzmán-Torres ◽  
Arantza Eiguren-Fernández ◽  
Pablo Cicero-Fernández ◽  
Marisela Maubert-Franco ◽  
Armando Retama-Hernández ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Organic Carbon ◽  
Mexico City ◽  
Aromatic Hydrocarbons ◽  
Polycyclic Aromatic

scholarly journals Modelling PAHs removal in activated sludge process: effect of disintegration

2019 ◽  
Vol 80 (4) ◽  
pp. 794-805
Author(s):  
I. Mozo ◽  
M. Bounouba ◽  
E. Mengelle ◽  
N. Lesage ◽  
M. Sperandio ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Activated Sludge ◽  
Aromatic Hydrocarbons ◽  
Suspended Matter ◽  
Activated Sludge Process ◽  
Mass Balances ◽  
Colloidal Matter ◽  
Main Driver ◽  
Polycyclic Aromatic

Abstract The removal of polycyclic aromatic hydrocarbons (PAHs) in activated sludge was evaluated using two laboratory-scale bioreactors, coupled or not with a disintegration system (sonication). Mass balances performed on each system underlined that PAHs removal was significantly improved after sludge disintegration, especially for the higher molecular weight PAHs studied, which tended to adsorb to suspended matter. A model was developed in order to study the effect of sludge disintegration on the content of dissolved and colloidal matter (DCM), and to predict the potential impacts on PAHs availability and degradation. Results showed that this new model was efficient for capturing apparent degradation improvement trends and for discriminating between the involved mechanisms. This study showed that DCM content increased after sludge disintegration, and proved to be the main driver for improving PAHs apparent degradation.

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