Municipal wastewater
Sewage collected from residential and commercial connections across a city or district network.
Resources
From liability
to recovered value.
Every input we take on has a place to go — a recovery pathway, an output, and a buyer. Below is the full value chain from raw stream to recovered resource, plus illustrative scenarios and answers to the questions that come up most in early conversations.
- 10+
- input streams accepted across the platform today
- 15+
- recovered outputs and products generated from those streams
- 4
- distinct revenue types from the same recovered stream
- 9%
- of the world's material use is estimated to be circular today
Value Chain · 01
Inputs
Every input we take on is treated as a resource stream with a recoverable output — not a waste stream with a disposal cost. These are the streams that enter the system.
Industrial wastewater
Process water discharged by manufacturing, food and beverage, and industrial operations.
STP & ETP sludge
The solid byproduct of municipal and industrial treatment processes, otherwise destined for landfill.
Organic waste
Food waste, garden waste and other biodegradable material from households and businesses.
Agricultural residues
Crop stubble, husks and other field leftovers from farming operations.
Biomass feedstock
Forestry offcuts, energy crops and other purpose-grown or byproduct plant material.
Commercial waste
Mixed waste streams generated by retail, hospitality and office operations.
Stormwater & rainwater
Runoff captured at the point it falls, before it reaches a drain or waterway.
Industrial by-products
Non-waste material generated as a secondary output of an industrial process.
Value Chain · 02
Recovery & Processing
The infrastructure layer that converts a captured stream into a usable output. This is where the actual transformation happens.
Anaerobic digestion
Breaking down organic material without oxygen to produce biogas and digestate.
Pyrolysis & gasification
Thermal processing that converts waste into syngas, oil or biochar.
Biofuel conversion
Fermentation, transesterification and hydrotreating pathways that turn biomass into liquid or gaseous fuel.
Composting
Aerobic breakdown of organic material into a stable, usable soil product.
Advanced water recovery
Membrane, biological and chemical treatment that recovers high-purity water from difficult streams.
Enhanced Rock Weathering
Accelerated mineral weathering that improves soil chemistry and locks away atmospheric carbon.
Value Chain · 03
Outputs
What the system produces once a stream has been recovered and processed — a resource, a product, or a credit, rather than something sent to disposal.
Recovered & reusable water
Treated water clean enough to return to operations, agriculture or the environment.
Renewable energy
Electricity, heat and steam generated from biogas and other recovered energy sources.
Low-carbon fuels & biomethane
Transport and industrial fuel that displaces its fossil equivalent.
Biochar
A stable, carbon-rich soil product created through pyrolysis of organic material.
Recovered nutrients & materials
Nitrogen, phosphorus, metals and other materials extracted for reuse.
Soil enhancement products
Products that improve soil structure, water retention or fertility.
Environmental credits
Verified carbon and environmental attributes structured into a saleable asset.
Improved ecosystem health
The measurable water quality, biodiversity and land health benefit of the work above.
Illustrative Scenarios
What this looks like in practice.
The scenarios below are illustrative — composite examples based on typical project profiles, not specific completed projects. They're here to show how the pieces fit together, not to claim a verified track record.
A Regional Airport
Challenge
Rising water costs and a 2030 net-zero commitment with no clear pathway to get there.
Approach
Water recovery retrofit across terminal operations, on-site organic waste processing from catering, and emissions monitoring aligned to the net-zero target.
Illustrative outcome
Reduced mains water withdrawal and a measurable pathway toward the airport's existing decarbonisation commitment.
Solutions involved
Water Recovery, Waste Recovery, Methane Avoidance & Landfill Diversion.
A Mid-Size Food Processor
Challenge
Rising disposal costs for high-strength organic wastewater and packaging waste.
Approach
On-site treatment and reuse of process water, combined with organic waste-to-biogas conversion to offset the facility's own energy use.
Illustrative outcome
Lower disposal costs, reduced fresh water intake per unit produced, and an on-site energy source that reduces exposure to grid price volatility.
Solutions involved
Water Recovery, Waste-to-Biofuels, Resource Recovery.
A Coastal Municipality
Challenge
Pressure to divert organic waste from a nearing-capacity landfill within a constrained public budget.
Approach
A regional resource recovery hub combining anaerobic digestion and composting, financed through a Build-Own-Operate structure.
Illustrative outcome
Extended landfill life, a new recovered-product revenue line, and no upfront capital outlay from the municipality.
Solutions involved
Processing Infrastructure, Asset Ownership & Financing, Carbon Sequestration.
Common Questions
Frequently asked questions.
The questions that come up most often in early conversations, answered directly.
How quickly can a project move from first conversation to construction?
It depends on the solution and site complexity. Single-solution retrofits like water recovery can move from feasibility to construction in months. Larger integrated platforms spanning multiple pillars take longer, simply because there's more to design and finance.
Do you take ownership of the asset, or do we?
Either. Our Asset Ownership & Financing service line lets us own and operate infrastructure on your site under a BOO or BOOT structure, or we can deliver it under EPC and hand it over for you to own and run yourself.
What happens if my site doesn't fit neatly into one of the four solution pillars?
The four pillars — water, waste, low-carbon fuels and decarbonisation — cover a wide range of combinations. If your site touches water use, waste generation or emissions reduction, there's almost always a relevant starting point. Talk to us directly if you're unsure.
How is your work measured and verified?
It depends on the outcome. Water and waste solutions are measured against agreed performance metrics in the operating contract. Carbon and environmental outcomes go through full MRV (measurement, reporting and verification) against recognised registries and standards.
What's the typical contract structure?
It ranges from a straightforward EPC contract for a one-off build, through to long-term Water-as-a-Service or Build-Own-Operate agreements that run for the life of the asset. Project Advisory is available if you want help structuring the right one for your situation.
Do you work with existing infrastructure, or only new builds?
Both. A large share of our work is retrofitting and optimising existing treatment plants and infrastructure rather than building from scratch — it's often faster and more capital-efficient than a full rebuild.
How does financing work if we don't want to fund it upfront?
Our Asset Ownership & Financing service line structures the capital stack — including BOO/BOOT models — so the infrastructure gets built and operated without requiring your own capital outlay.
What industries do you not currently serve?
We've built the deepest playbooks across the fifteen industries on our Industries page, but the underlying solutions apply to any operation managing water, waste or emissions. If your sector isn't listed, it's worth a conversation rather than an assumption either way.
Let's Talk Infrastructure
Have a water or waste liability worth turning into an asset?
Tell us about your site, your streams and your targets — we'll tell you what's recoverable.