scholarly journals Bacterial Consortium and Axenic Cultures Isolated from Activated Sewage Sludge for Biodegradation of Imidazol ium-Based Ionic Liquid

2016 ◽  
pp. 83-100
Author(s):  
M Markiewicz ◽  
J Henke ◽  
A Brillowska-Dąbrowska ◽  
S Stolte ◽  
J Łuczak ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Sewage Sludge ◽  
Bacterial Consortium ◽  
Axenic Cultures ◽  
Activated Sewage Sludge

scholarly journals Bacterial Consortium and Axenic Cultures Isolated from Activated Sewage Sludge for Biodegradation of Imidazolium-based Ionic Liquid

2016 ◽  
pp. 201-216
Author(s):  
Marta Markiewicz ◽  
Joanna Henke ◽  
Anna Brillowska-Dabrowska ◽  
Stefan Stolte ◽  
Justyna Luczak ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Sewage Sludge ◽  
Bacterial Consortium ◽  
Axenic Cultures ◽  
Activated Sewage Sludge

scholarly journals Bacterial consortium and axenic cultures isolated from activated sewage sludge for biodegradation of imidazolium-based ionic liquid

2013 ◽  
Vol 11 (7) ◽  
pp. 1919-1926 ◽  
Author(s):  
M. Markiewicz ◽  
J. Henke ◽  
A. Brillowska-Dąbrowska ◽  
S. Stolte ◽  
J. Łuczak ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Sewage Sludge ◽  
Bacterial Consortium ◽  
Axenic Cultures ◽  
Activated Sewage Sludge

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 Adsorptive desulfurization of diesel using activated sewage sludge: kinetics, equilibrium and thermodynamics studies

2019 ◽  
Vol 10 (1) ◽  
pp. 1-12 ◽  
Author(s):  
David Stan Aribike ◽  
Mohammed Awwalu Usman ◽  
Mojirade M. Oloruntoba
Keyword(s):  
Sewage Sludge ◽  
Fossil Fuels ◽  
Freundlich Isotherm ◽  
Entropy Change ◽  
Oxidizing Agent ◽  
Optimum Conditions ◽  
Adsorptive Desulfurization ◽  
Equilibrium Study ◽  
Enthalpy Changes ◽  
Activated Sewage Sludge

AbstractCombustion of fossil fuels gives rise to sulfur oxides, which are harmful to the environment. Adsorptive desulfurization (ADS) of diesel was conducted using sewage sludge activated with H2O2 as the oxidizing agent. A full 22 central composite response surface design was employed to determine optimum conditions for the production of activated sewage sludge (ASS). The adsorbent (ASS) was characterized using SEM, EDX and FTIR and the results of the analysis showed that it has the capacity to desulfurize diesel significantly. The ASS was subsequently used to conduct batch ADS of diesel with a view to investigate the kinetics, equilibrium and thermodynamics of the process. The optimum conditions established for the production of ASS using H2O2 as the oxidizing agent were: temperature 400 °C and holding time 60 min. The Elovich model gave the best fit to the kinetic data of the ADS of diesel using ASS, while the equilibrium study showed that the Freundlich isotherm fitted the data at 35 °C better than Temkin and Langmuir isotherms. The positive values of the free energy and enthalpy changes revealed that the process was non-spontaneous and endothermic, respectively, while the negative entropy change is evidence of decrease in randomness of the adsorbed species. 33% desulfurization was achieved in 100 min during ADS of diesel showing that the adsorbent developed by activating SS with H2O2 was very good and effective. Thus, ASS can be used to gain more insight into kinetics, equilibrium and thermodynamics of the ADS of middle-distillate petroleum fractions.

Mobility and biodegradability of an imidazolium based ionic liquid in soil and soil amended with waste sewage sludge

2015 ◽  
Vol 17 (8) ◽  
pp. 1462-1469 ◽  
Author(s):  
M. Markiewicz ◽  
C. Jungnickel ◽  
C.-W. Cho ◽  
S. Stolte
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Sewage Sludge ◽  
P Sorption ◽  
Waste Sewage Sludge ◽  
Soil And Water

Sorption on solids and biodegradation are main phenomena that can mitigate the pollution of soil and water by ionic liquids (ILs).

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