Hover or focus a stage to see what it connects to. Dashed lines show verification touching several stages.
01
Catchments
Where material enters the system: households, industry and stormwater, each with its own contaminant profile.
02
Treatment
Wastewater treatment separates water from solids. Decisions here shape what the solids can later become.
03
Solids
Sludge, biosolids and digestate are different materials. Their identity and history matter.
04
Recovery
Energy, nutrients and thermal routes. Each creates new products and new residuals to account for.
05
Products
A recovered material becomes a product only after qualification, not because it has left the plant.
06
Receiving land
Soil, water and crop conditions determine whether a product is useful and acceptable at its destination.
07
Outcomes
Multi-year results beyond the facility boundary, including corrective action when results disappoint.
08
Verification
Measurement, records and independent review. It touches every stage rather than sitting at the end.
What changes when we follow the material all the way to its destination?
Wastewater resource recovery is not a single process. Decisions about incoming contaminants can determine product eligibility years later. Energy requirements can alter technology choice. Agricultural conditions can reshape processing specifications. We make those dependencies explicit.
Follow contaminants through every process output, not only the main product.
Nutrient presence is not agronomic performance
Compare available nutrients, controls and outcomes, not totals on a certificate.
Recovery is not regeneration
Verify effects beyond the facility boundary, over years, at the receiving site.
Illustration
How much water does drying remove?
D = M0 x DS0 / 100
M1 = D / (DS1 / 100)
Water removed = M0 - M1
Dry solids
20 dry t
Wet mass after drying
25 wet t
Water removed
75 t
Mass reduction
75 %
Illustration only, using hypothetical values. Dry solids are assumed constant; real operations may lose dry matter or add chemicals, and energy, cost and suitability are not calculated here.
Initiator and research convenor of VRCRI, based in Korumburra, Victoria. Interests include biochar, biosolids, resource recovery and regenerative land use.
Systems architecture
Rohan Michael Brown
Systems architecture and technical development, through Awonow. Awonow is a separate identity from VRCRI.