GUO Qia.Lack and Correction of DOC Value in IPCC Calculation Model of Sludge Carbon Emission[J].China Water & Wastewater,2020,36(16 16):49-53.
Lack and Correction of DOC Value in IPCC Calculation Model of Sludge Carbon Emission
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
16 16
Page:
49-53
Column:
Date of publication:
2020-08-17
- Keywords:
- sludge treatment and disposal; carbon emission; default value model; degradable organic carbon (DOC)
- Abstract:
- The default value model proposed by the Intergovernmental Panel on Climate Change (IPCC) was based mainly on the sanitary landfill process of solid waste, and for different sludge treatment and disposal processes, the default value model used in the accounting of carbon emissions will make the calculation results inconsistent with the actual situation. Therefore, the accounting process of carbon emission and the deficiency of parameter value in sludge treatment and disposal process were analyzed and studied, and the determination method and calculation formula of sludge degradable organic carbon (DOC) were put forward, and the sludge DOC of several sewage treatment plants in different regions of China was determined. The results showed that the actual DOC of sludge in China was between 10%-20%, which was quite different from the recommended value of IPCC (50%), which indicated that the recommended value could not be simply used in the accounting of sludge carbon emissions. The inaccuracy of parameter values would cause inaccuracy in the calculation of greenhouse gas emissions such as carbon dioxide and methane during sludge treatment and disposal.
Last Update:
2020-08-17