Co-application of sewage sludge with biochar increases disappearance of polycyclic aromatic hydrocarbons from fertilized soil in long term field experiment

2017 ◽  
Vol 599-600 ◽  
pp. 854-862 ◽  
Author(s):  
Magdalena Stefaniuk ◽  
Patryk Oleszczuk ◽  
Krzysztof Różyło
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Sewage Sludge ◽  
Field Experiment ◽  
Aromatic Hydrocarbons ◽  
Fertilized Soil ◽  
Polycyclic Aromatic ◽  
Term Field

Fate of polycyclic aromatic hydrocarbons during composting of activated sewage sludge with green waste

2008 ◽  
Vol 99 (18) ◽  
pp. 8819-8823 ◽  
Author(s):  
M. Hafidi ◽  
S. Amir ◽  
A. Jouraiphy ◽  
P. Winterton ◽  
M. El Gharous ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Sewage Sludge ◽  
Aromatic Hydrocarbons ◽  
Green Waste ◽  
Polycyclic Aromatic ◽  
Activated Sewage Sludge

Enhancement of polycyclic aromatic hydrocarbons removal during anaerobic treatment of urban sludge

2003 ◽  
Vol 48 (4) ◽  
pp. 53-60 ◽  
Author(s):  
E. Trably ◽  
D. Patureau ◽  
J.P. Delgenes
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Sewage Sludge ◽  
Aromatic Hydrocarbons ◽  
Agricultural Soils ◽  
Biogas Production ◽  
Bacterial Consortium ◽  
Anaerobic Treatment ◽  
Biological Degradation ◽  
Low Concentrations ◽  
Polycyclic Aromatic

Anaerobically stabilized sewage sludge has potential to partially substitute synthetic fertilizers. The main risk with the recycling of urban sludge on agricultural soils is the accumulation of unwanted products, such as trace metals and organic micropollutants. In this context, the polycyclic aromatic hydrocarbons (PAHs) are particularly monitored because of their toxic properties at low concentrations and their high resistance to biological degradation. The aim of the present study was to optimize PAHs removal during anaerobic digestion of contaminated sewage sludge. Thirteen PAHs were monitored in laboratory-scale anaerobic bioreactors under mesophilic (35°C) and thermophilic (55°C) methanogenic conditions. Abiotic losses were statistically significant for the lightest PAHs, such as fluorene, phenanthrene and anthracene. It was shown that PAH removal was due to a specific biological activity. Biological PAHs removal was significantly enhanced by an increase of the temperature from 35°C to 55°C, especially for the heaviest PAHs. Bioaugmentation experiment was also performed by addition of a PAH-adapted bacterial consortium to a non-acclimated reactor. Significant enhancement of PAHs removal was observed. It was finally shown that PAH removal efficiencies and methanogenic performances were closely linked. The rate of biogas production may be used as an indicator of bacterial activity on PAH removal.

scholarly journals Polycyclic aromatic hydrocarbons in biochar amended soils: Long-term experiments in Brazilian tropical areas

Chemosphere ◽  
2018 ◽  
Vol 200 ◽  
pp. 641-648 ◽  
Author(s):  
Michele Fabri de Resende ◽  
Taila Figueredo Brasil ◽  
Beata Emoke Madari ◽  
Annibal Duarte Pereira Netto ◽  
Etelvino Henrique Novotny
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Amended Soils ◽  
Long Term Experiments ◽  
Polycyclic Aromatic ◽  
Tropical Areas
Sign in / Sign up

Export Citation Format

Share Document