Process information
| Key Data Set Information | |
| Location | CN |
| Geographical representativeness description | Tai Lake Watershed |
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| Use advice for data set | When using this dataset for Life Cycle Assessment, ensure inclusion of all relevant lifecycle stages of sludge treatment and disposal. Pay particular attention to the methodological appropriateness of the data especially regarding the Tai Lake Watershed context. Consider the representativeness of the data for the specific geographic region and time period. It is advised to account for technology variations and operational practices that may affect greenhouse gas emissions. The functional unit of one dry ton of sludge should be consistently applied across the assessment. |
| Technical purpose of product or process | The described process is utilized for the treatment and disposal of municipal sludge specifically within the Tai Lake Watershed area. The process involves dewatering of the sludge to produce dry sludge suitable for further processing or final disposal. The data associated with this process may be applied to assess environmental impacts in systemswhere treatment and management of municipal waste sludge is a component, especially when assessing greenhouse gas emissions on a per dry ton basis. |
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| General comment on data set | The main data sources used in our study are as follows: 1) Energy consumption and material inputs are obtained from investigations in Tai Lake Watershed; 2) The energy use emission factor is obtained from our own calculation, IPCC, and the literature.3) The fugitive emissions during landfilling, incineration, and composting are mainly determined by the model given in the other study as well as by the IPCC factors (2006), except for the CH4 emission in landfilling, which is obtained from study.4) Data from theoretical calculations (see Incineration section). |
| Copyright | No |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) | |
| Functional Unit | The functional unit used for GHGs in this LCA is one dry ton (DT) of sludge. |
| Technological representativeness | |
| Technology description including background system | According to the operating data, about 12.7 tons of cement is produced per ton of the dried sludge considering the combustion loss in the kiln |
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Modelling and validation
Administrative information
Inputs and Outputs