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Process Data set: Municipal sludge treatment and disposal;wet sludge moisture content 80%;850℃ pyrolysis (en) en zh

Key Data Set Information
Location CN
Name
Municipal sludge treatment and disposal;wet sludge moisture content 80%;850℃ pyrolysis
Use advice for data set When utilizing this data set for Life Cycle Assessment (LCA), ensure that the sludge processing conditions mirror those specified (e.g., moisture content of 80% and pyrolysis temperature of 850℃). For the impact assessment phase, consider the potential outputs and their treatment methods, such as syngas production, char utilization, and liquid effluent treatment. Exclude the impacts of upstream processes (such as sludge collection and transportation) and include any significant emissions during the pyrolysis step.
Technical purpose of product or process The municipal sludge treatment and disposal process described represents a unit process for the pyrolysis of wet sludge with a moisture content of 80% at a temperature of 850℃. It typically serves the purpose of converting wet municipal sludge into more stable materials, which can be used for energy recovery, soil amendment, or further chemical processing. The functional unit for this process is defined as the treatment of 1 ton of municipal sludge.
Classification
Class name : Hierarchy level
  • ILCD: Unit processes / End-of-life treatment / Wastewater treatment
General comment on data set Through experiments, the relevant data of the sludge pyrolysis treatment process under different working conditions are collected and distributed, and the input and output of materials and energy in each process are quantified, and the environmental pollutant emissions are quantified.
Copyright No
Owner of data set
Quantitative reference
Reference flow(s)
Functional Unit 1 t of sludge is selected as the functional unit, the moisture content of wet sludge is 80%.
Technological representativeness
Technology description including background system The rated power of the tube furnace in the pyrolysis link is 4 kW, the no-load power is 1.4 kW, nitrogen is introduced for 2~3 minutes before the reaction to ensure an oxygen-free environment, the nitrogen flow rate is 30 ml/min, the heating rate of the tube furnace is 80 °C/min, and the final temperature of pyrolysis is maintained for 10min.
Flow diagram(s) or picture(s)
  • UeocbLVraofAw3x0iotciYDrn9d.png Image
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
Type of review
Dependent internal review
Reviewer name and institution
Data generator
Data set generator / modeller
Data entry by
Time stamp (last saved) 2024-03-26T19:23:53+08:00
Publication and ownership
UUID 9fa687ec-5030-499f-81f4-04c4bc684a40
Date of last revision 2024-04-20T14:37:48.375481+08:00
Data set version 00.01.005
Permanent data set URI https://lcadata.tiangong.world/showProcess.xhtml?uuid=9fa687ec-5030-499f-81f4-04c4bc684a40&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 2080.008 MJ2080.008 MJ
Product flow Materials production / Inorganic chemicals 5.63 kg5.63 kg
Product flow
Wastes / Other waste 1000.0 kg1000.0 kg
General comment The moisture content of 1t of wet sludge is 80%

Outputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Elementary flow Emissions / Emissions to air / Emissions to air, unspecified 1.29 kg1.29 kg
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 22.13 kg22.13 kg
General comment The original text does not distinguish between biogenic and fossil, and according to experts, it is biogenic here.
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 3.37 kg3.37 kg
General comment The original text does not distinguish between biogenic and fossil, and according to experts, it is biogenic here.
Elementary flow Emissions / Emissions to air / Emissions to air, unspecified 0.45 kg0.45 kg
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 21.19 kg21.19 kg
General comment The original text does not distinguish between biogenic and fossil, and according to experts, it is biogenic here.
Product flow Materials production / Other materials 69.68 kg69.68 kg
Product flow Materials production / Other materials 75.76 kg75.76 kg