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Process Data set: Remediated soil ; Continued encapsulation ; Soil risk control ; Sheet pile wall maintenance+Hydraulic gradient control (en) en zh

Key Data Set Information
Location DK
Geographical representativeness description The contaminated site BGroyne 42 is located on the west coast of Denmark. The site is one of the largest contaminated sites in Denmark and covers an area of approximately 20,000 m2.
Reference year 2017
Name
Remediated soil ; Continued encapsulation ; Soil risk control ; Sheet pile wall maintenance+Hydraulic gradient control
Use advice for data set Data users should account for this dataset within Life Cycle Assessments focusing on soil contamination control strategies that are in situ, impermeable barriers such as the sheet pile walls described. The data includes long-term maintenance of these control technologies and the energy and material consumption onsite without accounting for any transportation or final material disposal processes. Considerations regarding technological applicability should include the indefinite maintenance period of the infrastructure as well as the local conditions for the hydraulic interventions. Abstraction and treatment facilities are presumed to operate for at least 100 years, although actual operation timeframes are indefinite.
Technical purpose of product or process The described process pertains to a risk management strategy specifically used for the containment and control of soil contamination at one of the largest polluted sites in Denmark. The process does not eliminate the pollution but instead focuses on indefinite maintenance and containment through the use of continuous sheet pile walls. The hydraulic control component involves the abstraction and treatment of contaminated groundwater using activated carbon filtration to manage the pollution risk within the contaminated zone. This strategy is used to prevent further environmental dispersion of pesticides in the soil over an assumed timeframe of 100 years.
Classification
Class name : Hierarchy level
  • ILCD: Unit processes / Other Services / Repair and maintenance
General comment on data set A risk control strategy for contaminated soil that cannot eliminate pollution, and the site has installed steel plate continuous walls, which only involves maintenance of the installed steel plate walls.
Copyright No
Owner of data set
Quantitative reference
Reference flow(s)
Functional Unit The functional units include steel pile walls that have been installed in a pesticide contaminated site covering an area of approximately 20000 square meters, 100 years of maintenance work, and related hydraulic control engineering.
Technological representativeness
Technology description including background system Continued encapsulation involves maintenance of the sheet pile wall, which is already installed, for an indefinite period. Groundwater is abstracted from the contaminated area to remove infiltrating water and to maintain a gradient towards the site. The abstracted water is treated by activated carbon filtration near the site. A 100-year timeframe is assumed although the time frame is actually indefinite.
Flow diagram(s) or picture(s)
  • T0vBbvRBIostbMxZT7lcv3AQn1g.png Image
LCI method and allocation
Type of data set Unit process, black box
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) 2024-03-25T14:05:57+08:00
Publication and ownership
UUID 82bdb908-b0ed-4c8c-b096-dedef2c50821
Date of last revision 2024-04-20T15:00:43.179267+08:00
Data set version 00.01.005
Permanent data set URI https://lcadata.tiangong.world/showProcess.xhtml?uuid=82bdb908-b0ed-4c8c-b096-dedef2c50821&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 7920000.0 MJ7920000.0 MJ
General comment Electricity: 22 MWh/year, in total 2200 MWh
Product flow
Materials production / Raw materials 200000.0 kg200000.0 kg
General comment Activated carbon: 2 tons/year, in total 200 tons
Product flow
Materials production / Raw materials 2700000.0 kg2700000.0 kg
General comment Steel: 900 tons per renewal, in total 2700 tons
Product flow Energy carriers and technologies / Crude oil based fuels 0.0247 kg0.0247 kg
Product flow Materials production / Water 20000.0 m320000.0 m3

Outputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Product flow End-of-life treatment / Waste water treatment 20000.0 m320000.0 m3