| Key Data Set Information | |
| Location | CN |
| Name |
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| Use advice for data set | Users of this data should consider the specific context of the co-combustion process when applying this data set. The functional unit of 1 ton dry sludge (1 t-DS) must be consistently used in LCA models. Attention should be paid to the energy mix and the emissions associated with the co-combustion process. It is essential to consider the regional variations in waste composition and energy infrastructure. |
| Technical purpose of product or process | This data set describes the process of municipal sludge treatment and disposal through co-combustion. The dry sludge derived from this process is primarily used for energy recovery in waste-to-energy facilities, where it is co-fired with other fuels. |
| Classification |
Class name
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Hierarchy level
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| General comment on data set | Several typical sludge treatment facilities in China, representing anaerobic digestion, composting, co-combustion, thermal drying-incineration, and cement production, respectively, are selected to carry out the inventory. Data are mainly taken from the site-specific measurement, either by field survey or by operation report. Sludge characteristics are based on the average values of the sites investigated. |
| Copyright | No |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) |
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| Functional Unit | One ton of sludge on a dry basis (1 t-DS) is defined as the functional unit. |
| Technological representativeness | |
| Technology description including background system | The dewatered sludge, with a moisture content of 78%, is mixed with coal at a ratio of 24% for co-combustion.23 The chosen power plant is of fluidized bed type. Sludge and coal are combusted at 850 °C, and exhaust gases from the combustion chamber are used for electricity generation. Twenty percent of the produced electricity is required to meet the input energy demand; with the remaining delivered to the city’s power grid. |
| LCI method and allocation | |||||
| Type of data set | Unit process, single operation | ||||
| Deviation from LCI method principle / explanations | None | ||||
| Deviation from modelling constants / explanations | None | ||||
| Data sources, treatment and representativeness | |||||
| Deviation from data cut-off and completeness principles / explanations | None | ||||
| Deviation from data selection and combination principles / explanations | None | ||||
| Deviation from data treatment and extrapolations principles / explanations | None | ||||
| Data source(s) used for this data set | |||||
| Completeness | |||||
| Completeness of product model | No statement | ||||
| Validation | |||||
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| Data generator | |
| Data set generator / modeller | |
| Data entry by | |
| Time stamp (last saved) | 2024-03-26T16:08:16+08:00 |
| Publication and ownership | |
| UUID | 86f8d0a3-1f25-495d-b9af-da34c1e351e6 |
| Date of last revision | 2024-04-20T14:37:20.756370+08:00 |
| Data set version | 00.01.005 |
| Permanent data set URI | https://lcadata.tiangong.world/showProcess.xhtml?uuid=86f8d0a3-1f25-495d-b9af-da34c1e351e6&version=01.00.000&stock=TianGong |
| Owner of data set | |
| Copyright | No |
| License type | Free of charge for all users and uses |
Inputs
| Type of flow | Classification | Flow | Location | Mean amount | Resulting amount | Minimum amount | Maximum amount | ||
|---|---|---|---|---|---|---|---|---|---|
| Product flow | Energy carriers and technologies / Electricity | 26924.4 MJ | 26924.4 MJ | ||||||
| Product flow | Energy carriers and technologies / Crude oil based fuels | 2.0 kg | 2.0 kg | ||||||
| Elementary flow | Resources / Resources from ground / Non-renewable energy resources from ground | 18900.0 MJ | 18900.0 MJ | ||||||
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| Product flow | Materials production / Inorganic chemicals | 55.5 kg | 55.5 kg | ||||||
| Product flow | Materials production / Inorganic chemicals | 49.7 kg | 49.7 kg | ||||||
| Product flow | Materials production / Other mineralic materials | 800.0 kg | 800.0 kg | ||||||
| Product flow | Wastes / Other waste | 1000.0 kg | 1000.0 kg | ||||||
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Outputs
| Type of flow | Classification | Flow | Location | Mean amount | Resulting amount | Minimum amount | Maximum amount | ||
|---|---|---|---|---|---|---|---|---|---|
| Product flow | Energy carriers and technologies / Electricity | 134625.6 MJ | 134625.6 MJ | ||||||
| Waste flow | Wastes / Production residues | 4700.0 kg | 4700.0 kg | ||||||
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