Victorian infrastructure project
Victorian Infrastructure Project
Validate the expected resource recovery outcomes from 13,000m3 (26,000T) of contaminated soils destined for landfill. The aim was to remediate as much soil as possible, preserve natural resources, reduce waste, and turn waste into an asset.
Validate the expected resource recovery outcomes from 13,000m3 (26,000T) of contaminated soils destined for landfill. The aim was to remediate as much soil as possible, preserve natural resources, reduce waste, and turn waste into an asset.
17,000T
Of contaminated soil recycled
5.5K
Return trips avoided
24%
Cost saving
Scope
RE3 carried out early work investigations to test and validate the performance of our mobile soil washing and separating solution for the material on the project. This process was a key step toward contributing to a circular economy by ensuring that as much of the contaminated soil as possible could be recovered and reused, rather than disposed of as waste.
Stage 2 – Planning and Design
Early works investigation
The early works investigation included bench scale testing that simulates the soil treatment process RE3 uses on site and assessed:
- Particle Size Distribution (PSD): Understanding the PSD of the soil will enable validation of expected yields and resultant resource streams achieved by the washing process,
- Bulk material densities: Validate conversion from m3 to tonnes to validate the disposal liabilities for the recovered resource streams
- Migration of contaminants: Validate how the contaminants of concern migrate through the material matrix as part of the washing process into the recovered aggregate, silt/clay, and water streams
- Reuse/ Reclassify: Validation of the capacity for the washed and separated resources to be reclassified for reuse or disposal, against:
- Victorian EPA Publication 1828.2 Waste disposal categories (VIC EPA 1828.2)
- EPA Designation – Classification of PFAS-impacted soil
- Victoria Government Gazette 2022
- PFAS National Environmental Management Plan NEMP 2.0 National Environment Protection (Assessment of Site Contamination) Measure 1999, as amended in 2013 (ASC NEPM)Thresholds
- Gate Fees: Validate the locations and corresponding gate fees for the disposal of material to licenced facilities should reuse not be viable.
- Trade Waste (Water): Validate the opportunity to dispose of surplus waste-water to sewer through a trade waste agreement
Stage 2 – Planning and Design
RE3 Solutions
- Site investigation and sampling
- Laboratory testing
- Methodology development (For Endorsement by 3rd party SQP and CLA):
- Equipment Selection
- Treatment section
- Testing Regime
Our Impact
We reclaimed valuable resources
This investigation highlighted the powerful potential of resource recovery and reuse:
- Particle Size Distribution (PSD): Based on the samples received, ~66% of sand and gravel resources are expected to be recovered
- Reuse/ Reclassify: The results of classification testing for the separated resources and clay fines confirmed that the clay fines are expected to remain Category D, with recovered sands and aggregates achieving clean fill classification.
- Impact:
- ~8500m3 (17,000T) of resources to be recovered, rather than being disposed of to landfill – reducing waste and protecting natural resources
- >5500 return trips avoided, for materials being disposed of – reducing fuel use, emissions, and disruption to local communities.
- >24% cost saving, compared to traditional disposal methods demonstrating that sustainable practices can be both environmentally and economically advantageous
Through this project, we didn’t just clean soil—we reclaimed valuable resources that would have otherwise been lost. This project showcases how careful planning and innovative solutions can transform contaminated materials into assets, reducing the need for raw resource extraction and contributing to a sustainable, circular economy.
Scope
Scope
RE3 carried out early work investigations to test and validate the performance of our mobile soil washing and separating solution for the material on the project. This process was a key step toward contributing to a circular economy by ensuring that as much of the contaminated soil as possible could be recovered and reused, rather than disposed of as waste.
RE3 carried out early work investigations to test and validate the performance of our mobile soil washing and separating solution for the material on the project. This process was a key step toward contributing to a circular economy by ensuring that as much of the contaminated soil as possible could be recovered and reused, rather than disposed of as waste.
Stage 2 – Planning and Design
Early works investigation
The early works investigation included bench scale testing that simulates the soil treatment process RE3 uses on site and assessed:
- Particle Size Distribution (PSD): Understanding the PSD of the soil will enable validation of expected yields and resultant resource streams achieved by the washing process,
- Bulk material densities: Validate conversion from m3 to tonnes to validate the disposal liabilities for the recovered resource streams
- Migration of contaminants: Validate how the contaminants of concern migrate through the material matrix as part of the washing process into the recovered aggregate, silt/clay, and water streams
Stage 2 – Planning and Design
Early works investigation
The early works investigation included bench scale testing that simulates the soil treatment process RE3 uses on site and assessed:
- Particle Size Distribution (PSD): Understanding the PSD of the soil will enable validation of expected yields and resultant resource streams achieved by the washing process,
- Bulk material densities: Validate conversion from m3 to tonnes to validate the disposal liabilities for the recovered resource streams
- Migration of contaminants: Validate how the contaminants of concern migrate through the material matrix as part of the washing process into the recovered aggregate, silt/clay, and water streams
- Reuse/ Reclassify: Validation of the capacity for the washed and separated resources to be reclassified for reuse or disposal, against:
- Victorian EPA Publication 1828.2 Waste disposal categories (VIC EPA 1828.2)
- EPA Designation – Classification of PFAS-impacted soil
- Victoria Government Gazette 2022
- PFAS National Environmental Management Plan NEMP 2.0 National Environment Protection (Assessment of Site Contamination) Measure 1999, as amended in 2013 (ASC NEPM)Thresholds
- Gate Fees: Validate the locations and corresponding gate fees for the disposal of material to licenced facilities should reuse not be viable.
- Trade Waste (Water): Validate the opportunity to dispose of surplus waste-water to sewer through a trade waste agreement
- Reuse/ Reclassify: Validation of the capacity for the washed and separated resources to be reclassified for reuse or disposal, against:
- Victorian EPA Publication 1828.2 Waste disposal categories (VIC EPA 1828.2)
- EPA Designation – Classification of PFAS-impacted soil
- Victoria Government Gazette 2022
- PFAS National Environmental Management Plan NEMP 2.0 National Environment Protection (Assessment of Site Contamination) Measure 1999, as amended in 2013 (ASC NEPM)Thresholds
- Gate Fees: Validate the locations and corresponding gate fees for the disposal of material to licenced facilities should reuse not be viable.
- Trade Waste (Water): Validate the opportunity to dispose of surplus waste-water to sewer through a trade waste agreement
Stage 2 – Planning and Design
Stage 2 – Planning and Design
RE3 Solutions
RE3 Solutions
- Site investigation and sampling
- Laboratory testing
- Methodology development (For Endorsement by 3rd party SQP and CLA):
- Equipment Selection
- Treatment section
- Testing Regime
- Site investigation and sampling
- Laboratory testing
- Methodology development (For Endorsement by 3rd party SQP and CLA):
- Equipment Selection
- Treatment section
- Testing Regime
OUR IMPACT
OUR IMPACT
We reclaimed valuable resources
We reclaimed valuable resources
This investigation highlighted the powerful potential of resource recovery and reuse:
- Particle Size Distribution (PSD): Based on the samples received, ~66% of sand and gravel resources are expected to be recovered
- Reuse/ Reclassify: The results of classification testing for the separated resources and clay fines confirmed that the clay fines are expected to remain Category D, with recovered sands and aggregates achieving clean fill classification.
This investigation highlighted the powerful potential of resource recovery and reuse:
- Particle Size Distribution (PSD): Based on the samples received, ~66% of sand and gravel resources are expected to be recovered
- Reuse/ Reclassify: The results of classification testing for the separated resources and clay fines confirmed that the clay fines are expected to remain Category D, with recovered sands and aggregates achieving clean fill classification.
- Impact:
- ~8500m3 (17,000T) of resources to be recovered, rather than being disposed of to landfill – reducing waste and protecting natural resources
- >5500 return trips avoided, for materials being disposed of – reducing fuel use, emissions, and disruption to local communities.
- >24% cost saving, compared to traditional disposal methods demonstrating that sustainable practices can be both environmentally and economically advantageous
Through this project, we didn’t just clean soil—we reclaimed valuable resources that would have otherwise been lost. This project showcases how careful planning and innovative solutions can transform contaminated materials into assets, reducing the need for raw resource extraction and contributing to a sustainable, circular economy.
- Impact:
- ~8500m3 (17,000T) of resources to be recovered, rather than being disposed of to landfill – reducing waste and protecting natural resources
- >5500 return trips avoided, for materials being disposed of – reducing fuel use, emissions, and disruption to local communities.
- >24% cost saving, compared to traditional disposal methods demonstrating that sustainable practices can be both environmentally and economically advantageous
Through this project, we didn’t just clean soil—we reclaimed valuable resources that would have otherwise been lost. This project showcases how careful planning and innovative solutions can transform contaminated materials into assets, reducing the need for raw resource extraction and contributing to a sustainable, circular economy.
17,000T
Of contaminated soil recycled
5.5K
Return trips avoided
24%
Cost saving
17,000T
Of contaminated soil recycled
5.5K
Return trips avoided
24%
Cost saving
