Acidogenic Fermentation Facilitates Anaerobic Biodegradation of Polycyclic Aromatic Hydrocarbons in Waste Activated Sludge

2019 ◽  
Vol 7 (5) ◽  
pp. 5404-5411 ◽  
Author(s):  
Leiyu Feng ◽  
Jianguang Chen ◽  
Feng Wang ◽  
Yinguang Chen ◽  
Jingyang Luo
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Activated Sludge ◽  
Aromatic Hydrocarbons ◽  
Anaerobic Biodegradation ◽  
Waste Activated Sludge ◽  
Acidogenic Fermentation ◽  
Polycyclic Aromatic

Bioaugmentation strategy to enhance polycyclic aromatic hydrocarbons anaerobic biodegradation in contaminated soils

Chemosphere ◽  
2021 ◽  
Vol 275 ◽  
pp. 130091
Author(s):  
Alberto Ferraro ◽  
Giulia Massini ◽  
Valentina Mazzurco Miritana ◽  
Antonio Panico ◽  
Ludovico Pontoni ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Contaminated Soils ◽  
Anaerobic Biodegradation ◽  
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.

Distribution, partition and removal of polycyclic aromatic hydrocarbons (PAHs) during coking wastewater treatment processes

2015 ◽  
Vol 17 (5) ◽  
pp. 975-984 ◽  
Author(s):  
Wanhui Zhang ◽  
Chaohai Wei ◽  
Guanfeng An
Keyword(s):  
Wastewater Treatment ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Activated Sludge ◽  
Aromatic Hydrocarbons ◽  
Full Scale ◽  
Coking Wastewater ◽  
Conventional Activated Sludge ◽  
Treatment Processes ◽  
Polycyclic Aromatic

In this study, we report the performance of a full-scale conventional activated sludge (A–O1–O2) treatment in eliminating polycyclic aromatic hydrocarbons (PAHs).

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