Effect of sewage sludge sonication parameters on the content of organic compounds in the supernatant liquid

2020 ◽  
Vol 199 ◽  
pp. 66-71
Author(s):  
Małgorzata Worwąg
Keyword(s):  
Sewage Sludge ◽  
Organic Compounds ◽  
Supernatant Liquid ◽  
Sonication Parameters

scholarly journals Thermal Transformation of Carbon and Oxygen-Containing Organic Compounds in Sewage Sludge During Pyrolysis Treatment

Energies ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 2258
Author(s):  
Yanjun Hu ◽  
Yanjun Lu ◽  
Wenchao Ma ◽  
Linjie Wang ◽  
Haryo Wibowo ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Thermal Behavior ◽  
Volatile Compounds ◽  
Organic Compounds ◽  
Thermal Transformation ◽  
Gas Chromatography Mass Spectrometry ◽  
Pyrolysis Gas ◽  
Evolved Gas ◽  
Polycyclic Aromatic ◽  
Insight Into

Organic carbon (C) and oxygen (O) contained in sewage sludge strongly impact its thermal behavior during pyrolysis treatment. This study was aimed at getting an insight into the decomposition mechanism of organic compounds containing C and O during sludge pyrolysis using thermo-gravimetric Fourier transform infrared spectroscopy (TG-FTIR) and pyrolysis-gas-chromatography/mass spectrometry (Py-GC/MS) and helpfully improving energy conversion of sewage sludge. The temperature domains of transformation were determined and indications of the main compounds produced during each stage were obtained. Results showed that the volatile compounds that evolved after sludge pyrolysis were mainly distributed into six groups: alkenes, aromatic hydrocarbons, alcohols, aldehydes, phenols and carboxylic acids. Comparison in thermal behavior and composition of the evolved volatile compounds were observed. In the low temperature stage (<350 °C), compounds containing O–C=O accounted for the highest proportion in the evolved gas (55%). Over 350 °C, the production of C=C, –OH, and –C6H5 compounds gradually increased; but little was found of compounds containing O–C=O. Above 550 °C, as thermal chemical reaction involving oxygen-containing groups enhanced, compounds containing O–C=O and –OH tended to disappear, and an increasing amount of macromolecular polycyclic aromatic hydrocarbon was formed. Finally, the thermal transformation pathways of the oxygen and carbon-containing compounds were proposed.

Phytoremediation of sewage sludge contaminated by trace elements and organic compounds

2018 ◽  
Vol 164 ◽  
pp. 356-366 ◽  
Author(s):  
Werther Guidi Nissim ◽  
Alessandra Cincinelli ◽  
Tania Martellini ◽  
Laura Alvisi ◽  
Emily Palm ◽  
...  
Keyword(s):  
Trace Elements ◽  
Sewage Sludge ◽  
Organic Compounds

Activated carbon preparation from pyrolysis char of sewage sludge and its adsorption performance for organic compounds in sewage

Fuel ◽  
2020 ◽  
Vol 266 ◽  
pp. 117053 ◽  
Author(s):  
Yu-huan Li ◽  
Feng-min Chang ◽  
Bo Huang ◽  
Ya-peng Song ◽  
Hong-yu Zhao ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Sewage Sludge ◽  
Organic Compounds ◽  
Adsorption Performance

VARIABILITY OF SELECTED PARAMETERS AS A RESULT OF MICROWAVE DISINTEGRATION OF SEWAGE SLUDGE

2018 ◽  
Vol 171 (51) ◽  
pp. 60-68
Author(s):  
Justyna Czajkowska ◽  
Piotr Nowak ◽  
Maciej Malarski ◽  
Katarzyna Pergół
Keyword(s):  
Wastewater Treatment ◽  
Sewage Sludge ◽  
Wastewater Treatment Plant ◽  
Initial Treatment ◽  
Treatment Plant ◽  
Supernatant Liquid ◽  
Suppression Process

This article contains the results of investigations conducted at the WULS in Warsaw concerning initial treatment of sewage sludge by means of microwave disintegration. Sewage sludge were taken from the "Mokre Łąki" wastewater treatment plant in the municipality of Izabelin. Experiments were carried out on concentrated and non-concentrated sludge. Each of the sludges was disintegrated in portions of varying volumes and also at different time of microwave interactions. Significant changes in the values of the tested parameters such as COD, turbidity and temperature due to the sludge suppression process were considered. These parameters have a significant impact on the course of further processes that treated sludge and supernatant liquid can be processed. Therefore, determining the volatility of these parameters is important.

scholarly journals THE EFFECTIVENESS OF THE ORGANIC COMPOUNDS RELEASED DUE TO THE HYDRODYNAMIC DISINTEGRATION OF SEWAGE SLUDGE

2017 ◽  
Vol 18 (3) ◽  
pp. 47-55 ◽  
Author(s):  
Ewa Szatyłowicz ◽  
Agnieszka Garlicka ◽  
Monika Żubrowska-Sudoł
Keyword(s):  
Sewage Sludge ◽  
Organic Compounds

Identification of surfactant degradation products as toxic organic compounds present in sewage sludge

2001 ◽  
Vol 3 (2) ◽  
pp. 232-237 ◽  
Author(s):  
Marinel la Farré ◽  
María-Jesús García ◽  
Montserrat Castillo ◽  
Josep Riu ◽  
Damià Barceló
Keyword(s):  
Sewage Sludge ◽  
Organic Compounds ◽  
Degradation Products ◽  
Surfactant Degradation ◽  
Toxic Organic Compounds

Recovery of Organic Compounds from Sewage Sludge by Proton Transfer

1990 ◽  
pp. 311-327
Author(s):  
Mamadou S. Diallo ◽  
James H. Johnson ◽  
Ramesh Chawla ◽  
Joseph N. Cannon ◽  
Frank E. Senftle
Keyword(s):  
Sewage Sludge ◽  
Proton Transfer ◽  
Organic Compounds
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