Emission of greenhouse gases from wastewater treatment processes

Publication Date Jan 1, 1995


Abstract Biological wastewater treatment processes are a source of emission of the greenhouse gases CO 2 , CH 4 and N 2 O into the atmosphere. Studies were carried out to quantify the emissions of these gases from the municipal wastewater treatment plants in The Netherlands, which in 1987 handle a total waste load of 17,049,000 population equivalents. On the basis of detailed calculations for the different treatment methods and assumptions for the formation of N 2 O the following emissions were calculated: CO 2 -880 million kg/yr (0.5% of the total CO 2 -emission in The Netherlands), CH 4 -12.5 million kg/yr (1% of the total CH 4 -emission) and N 2 O-829,000 kg N per year (0.9% of the total N 2 O-emission). Measurements of N 2 O-emissions from 2 low load activated sludge plants were carried out. First results indicated that the N 2 O formation and emission amount to 0.1% of the total N-load with the influent to the wastewater treatment plants.


Population Equivalents Municipal Wastewater Treatment Plants Wastewater Treatment Wastewater Treatment Processes Emission Of Greenhouse Gases Total CO Treatment Plants Emission Of Gases Biological Treatment Processes Treatment Methods

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