scholarly journals Greenhouse gas emissions from different sewage sludge treatment methods in north

2018 ◽  
Vol 177 ◽  
pp. 483-492 ◽  
Author(s):  
Sari Piippo ◽  
Maria Lauronen ◽  
Heini Postila
Keyword(s):  
Sewage Sludge ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Sludge Treatment ◽  
Gas Emissions ◽  
Treatment Methods ◽  
Sewage Sludge Treatment

scholarly journals Sewage sludge treatment: evaluation of the energy potential and methane emissions with COD balancing

2015 ◽  
Vol 5 (4) ◽  
pp. 437-445 ◽  
Author(s):  
C. Schaum ◽  
D. Lensch ◽  
P.-Y. Bolle ◽  
P. Cornel
Keyword(s):  
Sewage Sludge ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Electricity Generation ◽  
Methane Emissions ◽  
Anaerobic Sludge ◽  
Sludge Treatment ◽  
Gas Emissions ◽  
Dissolved Methane ◽  
Methane Slip

Sewage sludge is an important resource for the generation of electricity and heat within a wastewater treatment plant (WWTP). Taking a holistic approach to such use involves considering the greenhouse gas emissions. In particular, for anaerobic sludge treatment, methane emissions are a matter of concern. Therefore, the utilization of a carbon balance, based on the chemical oxygen demand (COD), will be a focus for evaluating the magnitude of methane losses within the sludge treatment. In addition to biogas production and use in combined heat and power plants (CHPs), dissolved methane in digested sludge, as well as the methane slip, have to be considered. Measurements of dissolved methane concentrations in sewage sludge from digesters of various WWTPs show a concentration of about 17–37 mg CH4/L. The COD balance indicates a ratio of the methane emissions (methane slip, dissolved methane and residual gas) of < 4% of the total methane production during digestion. Considering the electricity generation by CHPs and the higher global warming potential of methane, compared to carbon dioxide, emissions of approximately 300 g CO2-equ./kWhel result, which is in a similar range to greenhouse gas emissions caused by electricity generation by fossil fuels.

Evalution of the fate of greenhouse gas emissions from the sludge mineralisation process in Sludge Treatment Wetlands

2021 ◽  
Vol 159 ◽  
pp. 106124
Author(s):  
Junyu Liang ◽  
Yubo Cui ◽  
Mingyue Zhang ◽  
Zhaobo Chen ◽  
Shiquan Wang ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Treatment Wetlands ◽  
Sludge Treatment ◽  
Gas Emissions

Quantification of greenhouse gas emissions from sludge treatment wetlands

2012 ◽  
Vol 46 (6) ◽  
pp. 1755-1762 ◽  
Author(s):  
Enrica Uggetti ◽  
Joan García ◽  
Saara E. Lind ◽  
Pertti J. Martikainen ◽  
Ivet Ferrer
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Treatment Wetlands ◽  
Sludge Treatment ◽  
Gas Emissions
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