Process information
| Key Data Set Information | |
| Location | CN |
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| Use advice for data set | When utilizing this dataset for Life Cycle Assessment, it is important to treat the described unit process as a distinct operation within the sludge management system. Consider the energy and resource inputs required for both drying and incineration stages, as well as the emissions and residues resulting from the process. Users should ensure that the dataset is applicable to the geographic and technological context of the sludge treatment and correct for any differences in practice or scale. Additionally, if considering recycling or the environmental impact post-disposal, these aspects must be integrated into the overall LCA framework separately. |
| Technical purpose of product or process | The described process pertains to municipal sludge treatment and disposal. The sludge, characterized by a high moisture content of 80%, undergoes a process of drying followed by incineration. This is a unit process (single operation) capable of handling wet sludge at the specified moisture level. It is commonly utilized in the management of wastewater treatment plant byproducts and is a critical step for reducing sludge volume before final disposal. |
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| General comment on data set | The carbon dioxide content is estimated based on the 95% conversion rate of carbon in the sludge, and the conventional components and heavy metal content of other flue gas are from the on-site monitoring data of a sludge incineration plant. |
| Copyright | No |
| Owner of data set | |
| Quantitative reference | |
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| Functional Unit | In this paper, 1 t of 80% sludge with a moisture content is used as the functional unit for calculating environmental impact, resource consumption and economic cost. |
| Technological representativeness | |
| Technology description including background system | Wet sludge first enters the sludge dryer for drying treatment, from the moisture content of 80% to 50%; the dried sludge is sent to the fluidized bed for combustion, and the temperature of the fluidized bed is between 850~1 000 °C; the high-temperature flue gas produced by combustion enters the air preheater, and the preheated air enters the fluidized bed as combustion air; the flue gas from the air preheater enters the waste heat boiler to heat the boiler feed water, and the high-temperature steam (0.8 MPa, 200) produced by the waste heat boiler °C) enters the sludge dryer as a heat source to dry the sludge, and the cooled flue gas is discharged after ash removal and dust removal treatment. |
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Modelling and validation
Administrative information
Inputs and Outputs