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Process Data set: Caisson-based gate ; 2.4 m diameter ; In-situ groundwater remediation ; PRB ; Funnel-and-gate configuration PRB (en) en zh

Key Data Set Information
Location US
Geographical representativeness description PRB is assumed to be installed at a simulated site
Reference year 2011
Name
Caisson-based gate ; 2.4 m diameter ; In-situ groundwater remediation ; PRB ; Funnel-and-gate configuration PRB
Use advice for data set When using this dataset, ensure to model the in-situ groundwater remediation process accurately by considering the unique installation methodology of the caisson-based gate, its diameter, and the nature of the reactive materials used within the gate. The dataset includes all major raw materials and essential energy consumption, which should be accounted for in the life cycle assessment. Users should note the functional unit of the process – a single operation – and its application to a simulated polluted site for PRB installation.
Technical purpose of product or process The caisson-based gate described is employed as a component within a permeable reactive barrier (PRB) system for in-situ groundwater remediation. Its function is to direct contaminated groundwater through an impermeable funnel into the gate, where it is then treated by passing through reactive materials within the gate. The term 'caisson-based' refers to the installation process of the gate, which involves the use of the caisson method, a technique that allows for the construction of the gate in an underwater environment.
Classification
Class name : Hierarchy level
  • ILCD: Unit processes / Other Services / Repair and maintenance
General comment on data set The gate is one of the components of the groundwater PRB system. The impermeable funnel guides or collects polluted groundwater flow into the gate. The gate is filled with active materials to dispose of the groundwater flowing through it. Caisson-based gate refers to a gate installed using the caisson-based method.
Copyright No
Owner of data set
Quantitative reference
Reference flow(s)
Technological representativeness
Flow diagram(s) or picture(s)
  • PdQ4bwBuhoQ1hXx1xuocEsyOnkd.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) 2024-03-25T14:56:51+08:00
Publication and ownership
UUID decbb5e5-fcd4-48ca-91be-b403f956399f
Date of last revision 2024-04-20T15:02:24.815679+08:00
Data set version 00.01.005
Permanent data set URI https://lcadata.tiangong.world/showProcess.xhtml?uuid=decbb5e5-fcd4-48ca-91be-b403f956399f&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
Materials production / Other materials 139000.0 kg139000.0 kg
General comment Assume Fe0 is mixed with quartz sand in 1:1 (w:w)
Elementary flow
Resources / Resources from ground / Non-renewable material resources from ground 139000.0 kg139000.0 kg
General comment Assume Fe0 is mixed with quartz sand in 1:1 (w:w)
Product flow
Transport services / Other transport 44480.0 t*km44480.0 t*km
General comment Transport distance of the materials to the site is assumed to be 160 km (100 mile)
Product flow
Energy carriers and technologies / Electricity 483000.0 MJ483000.0 MJ
General comment Reactive media construction. Replacement of reactive media is assumed to occur three times.
Product flow
Materials production / Raw materials 37200.0 kg37200.0 kg
General comment Gate (caisson) steel 9300 kg/gate (caisson)
Elementary flow Resources / Resources from ground / Non-renewable material resources from ground 72100.0 kg72100.0 kg
Product flow Transport services / Other transport 17488.0 t*km17488.0 t*km
Product flow
Energy carriers and technologies / Electricity 731000.0 MJ731000.0 MJ
General comment Gate (caisson) construction energy 182.7 GJ/ gate (caisson), including ① Soil excavation energy 1.151 GJ/m3  soil and ② Backfilling energy 1.74 MJ/kg backfills
Elementary flow
Resources / Resources from ground / Non-renewable material resources from ground 21400.0 kg21400.0 kg
General comment Backfilling the pretreatment and post-treatment zones with quartz sand

Outputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Product flow Materials production / Other materials 4.0 Item(s)4.0 Item(s)