STP & ETP optimisation
Upgrading existing sewage and effluent treatment plants to run at higher efficiency, capacity and recovery rates without a full rebuild.
Solutions
One planet.
One circular ecosystem.
Every litre of water, every tonne of waste, and every unit of carbon sits inside one connected system. VIVENT's four solution pillars — Water Systems, Waste Systems, Low-Carbon Fuels and Decarbonisation — are engineered to work together, because on one planet, nothing really operates in isolation. Below, each pillar is broken down into its three core solutions and the specific capabilities behind them.
- 40%
- of the global population already experiences water scarcity for part of the year
- 1/3
- of all food produced globally is lost or wasted before it's ever consumed
- 20%
- of global methane emissions come from landfilled and organic waste
- 2x
- global biofuel demand is projected to more than double by 2050 under net-zero pathways
Water Systems · 01
Water Recovery
Treats a site's wastewater problem and water-cost problem as one — retrofitting STPs and ETPs, deploying industrial recycling loops, and capturing water at the point it's generated instead of shipping it off-site. The result: less drawn from the mains, less discharged to regulators, and the fastest payback of any water solution.
Industrial water recycling loops
Closed-loop systems that treat and reuse process water on-site, cutting fresh intake and discharge volumes simultaneously.
Water reuse systems (greywater & blackwater)
Separating and treating wastewater by source so lower-grade uses draw on recycled water instead of potable supply.
Decentralised, modular treatment systems
Compact, prefabricated treatment units deployed close to the point of use, reducing pipework and enabling phased capacity growth.
Advanced membrane & biological recovery technologies
Ultrafiltration, reverse osmosis and biological treatment combined to recover higher-purity water from difficult streams.
Real-time water quality monitoring
Continuous sensor-based tracking of key water quality parameters, catching problems before they become compliance breaches.
Water Systems · 02
Water Security
Gives a site a second, independent water source — rainwater and atmospheric harvesting, storage and catchment management — so a mains disruption, drought or regulatory tightening never becomes an operational crisis. Built as a resilience layer that's used in daily operations, not a backup that sits idle.
Rainwater harvesting (RWH) systems
Capturing and storing roof and surface run-off for use in irrigation, cooling, cleaning and non-potable applications.
Atmospheric water harvesting (AWH)
Extracting water directly from humidity in the air, giving sites in water-stressed regions a supply source independent of rainfall.
Bulk & modular water storage
Scalable storage infrastructure that buffers supply against seasonal shortages and demand spikes.
Catchment & watershed management
Managing the land and waterways that feed a site's water source to protect volume and quality over the long term.
Drought & climate-resilience planning
Modelling site-specific water risk under different climate scenarios and building contingency supply into design from day one.
Alternative-source blending & backup supply design
Combining multiple water sources so no single failure point can interrupt supply.
Water Systems · 03
Water Resource Enhancement
Looks beyond the site to the watershed, river system or catchment it depends on, restoring the water quality and soil-water retention that protect it long-term. This is also where Enhanced Rock Weathering sits, improving alkalinity with durable carbon removal as a genuine co-benefit.
Watershed regeneration programs
Restoring degraded catchments so they retain, filter and release water more effectively over time.
River & wetland restoration
Rebuilding natural river and wetland systems that buffer flooding, filter pollutants and support biodiversity.
Water quality improvement initiatives
Targeted interventions that reduce pollutant loads and improve raw water quality at the source.
Alkalinity enhancement (ERW-linked)
Applying finely ground silicate rock to improve water and soil alkalinity while sequestering carbon.
Soil-water retention improvement
Improving soil structure so agricultural and catchment land holds more water and requires less irrigation.
Ecosystem & biodiversity monitoring
Tracking the ecological health of a watershed over time to measure whether interventions are working.
Waste Systems · 01
Waste Recovery
Captures, sorts and characterises municipal, industrial, organic and agricultural waste streams before anything can be recovered from them — the step that determines the value of everything downstream. Cleaner input streams mean higher-value outputs and lower processing costs at every later stage.
Municipal & commercial waste recovery
Capturing recoverable material from household and business waste streams before it reaches landfill.
Industrial waste recovery
Recovering usable material and energy value from manufacturing and processing waste streams.
Organic waste management
Diverting food and organic waste into composting or anaerobic digestion rather than landfill.
Agricultural residue management
Collecting and processing crop residues and farm waste into usable feedstock rather than burning or dumping.
Biosolids management
Treating and repurposing sewage sludge into safe soil amendments or energy feedstock.
Source-separation & sorting infrastructure
Equipment and processes that separate waste streams at or near the point of generation for cleaner downstream processing.
Waste Systems · 02
Resource Recovery
Extracts the materials and nutrients still locked inside sorted waste — nitrogen, phosphorus and potassium from organics; metals, plastics and glass from municipal streams. Every tonne recovered here becomes a product revenue line instead of a disposal cost.
Nutrient recovery (nitrogen, phosphorus, potassium)
Extracting agricultural nutrients from waste streams and returning them to productive use.
Material recovery (metals, plastics, glass)
Sorting and reprocessing recyclable materials into secondary raw material streams.
Circular economy product design
Designing recovered outputs to meet the specifications of the markets that will buy them.
Resource separation systems
Mechanical and manual systems that isolate valuable fractions from mixed waste streams.
Landfill diversion programs
Structured programs that measurably reduce the volume of waste sent to landfill.
Secondary raw material market access
Connecting recovered materials to manufacturers who need them as inputs.
Waste Systems · 03
Processing Infrastructure
The physical plant that makes recovery possible at scale — anaerobic digesters, pyrolysis and gasification units, composting facilities and integrated multi-stream hubs, designed as modular assets sized for a single site or a regional facility.
Anaerobic digestion plants
Facilities that break down organic waste in the absence of oxygen to produce biogas and digestate.
Pyrolysis & gasification units
Thermal processing technology that converts waste into syngas, oils or biochar.
Composting facilities
Aerobic processing sites that turn organic waste into stable, usable soil products.
Resource recovery facilities (MRFs)
Materials recovery facilities that sort mixed waste at scale into saleable fractions.
Integrated multi-stream processing hubs
Single sites engineered to handle several waste types together for efficiency of scale.
Modular, scalable plant design
Standardised processing units that can be added incrementally as volumes grow.
Low-Carbon Fuels · 01
Biomass-to-Biofuels
Converts forestry and agricultural biomass into ethanol, biodiesel and renewable diesel through established, bankable pathways, with sourcing and logistics built alongside the conversion asset so the plant is never feedstock-constrained.
Ethanol production
Fermenting biomass sugars into ethanol for blending into transport fuel.
Biodiesel production
Converting fats and oils into biodiesel through transesterification.
Renewable diesel (HVO) pathways
Producing drop-in diesel replacement fuel through hydrotreating of renewable feedstocks.
Feedstock sourcing & aggregation
Building the supply networks that keep a biofuels plant reliably fed with raw material.
Transport & logistics networks
Moving bulky, low-density feedstock efficiently from source to processing facility.
Fuel quality certification
Testing and certifying output fuel against the technical and regulatory standards buyers require.
Low-Carbon Fuels · 02
Agricultural Inputs-to-Biofuels
Turns crop residues that are usually burned or left to decompose into fuel-grade feedstock through on-farm pre-processing, with offtake agreements that give farmers a new income line from material they used to pay to dispose of.
Crop residue (straw, husk, stover) valorisation
Turning leftover crop material into fuel-grade feedstock instead of burning or leaving it to decompose.
Energy crop cultivation partnerships
Working with landowners to grow dedicated energy crops on land unsuited to food production.
On-farm pre-processing & densification
Compressing bulky residues into transportable, energy-dense pellets or bales at the point of collection.
Farmer offtake agreements
Long-term purchase contracts that give farmers price certainty for their residue and energy crop supply.
Seasonal feedstock storage
Storage infrastructure that smooths supply across harvest cycles.
Supply chain traceability
Tracking feedstock from field to fuel to support sustainability certification requirements.
Low-Carbon Fuels · 03
Waste-to-Biofuels
Routes municipal and organic waste already inside our Waste Systems infrastructure into biomethane, RNG and synthetic fuel pathways — typically the fastest low-carbon fuels solution to bring online, because it reuses infrastructure already built for waste processing.
Anaerobic digestion to biomethane
Upgrading raw biogas from digesters into pipeline-quality biomethane.
Gasification & synthetic fuel pathways
Converting waste into syngas that can be synthesised into liquid or gaseous fuels.
Renewable Natural Gas (RNG) upgrading
Removing impurities from biogas so it meets natural gas grid specifications.
Grid injection & pipeline connection
Physically connecting a biomethane facility to existing gas distribution infrastructure.
Offtake agreements with fuel buyers
Long-term supply contracts that de-risk the economics of a fuels project.
Carbon intensity (CI) scoring & certification
Quantifying and certifying the lifecycle emissions profile of a fuel for regulatory and market purposes.
Decarbonisation · 01
Methane Avoidance & Landfill Diversion
Addresses one of the single largest controllable sources of methane emissions globally by diverting organics into digestion, managing biosolids responsibly, and monitoring for fugitive leaks — delivering an outsized climate benefit per tonne diverted.
Landfill diversion programs
Systematically redirecting organic waste away from landfill and into recovery infrastructure.
Anaerobic digestion of organics
Processing organic waste in digesters instead of letting it decompose anaerobically in landfill.
Biosolids & sludge diversion
Redirecting sewage sludge into productive processing rather than landfill disposal.
Landfill gas capture (where applicable)
Capturing methane from existing landfill sites for flaring or energy use.
Methane leak detection & monitoring
Identifying and addressing fugitive methane emissions across a site or asset.
Regulatory compliance reporting
Producing the emissions data and documentation regulators require.
Decarbonisation · 02
Enhanced Rock Weathering
Spreads finely ground silicate rock across farmland and watersheds, locking away atmospheric CO₂ as stable minerals while raising soil and water alkalinity — carbon removal as the durable co-benefit of an intervention built for soil and water outcomes.
Agricultural & watershed application
Spreading ground silicate rock across farmland and catchments to accelerate natural weathering.
River & coastal alkalinity enhancement
Increasing alkalinity in waterways to counteract acidification and support aquatic ecosystems.
Long-term durable carbon removal
Locking atmospheric carbon into stable mineral form over geological timescales.
Soil health & crop yield co-benefits
Improving soil pH and nutrient availability alongside the carbon removal effect.
Rock sourcing & particle-size optimisation
Selecting and grinding rock to the particle size that maximises weathering rate.
Field trial design & monitoring
Running controlled trials to measure weathering rate and carbon removal under real conditions.
Decarbonisation · 03
Carbon & Environmental Markets
Turns avoided methane, sequestered carbon and displaced fossil fuel use into a transactable credit through full MRV, registry listing and buyer matching — or structures offtake and portfolio arrangements for customers who want the benefit without holding the credit.
Carbon credit origination
Structuring a verified emissions reduction or removal project into a saleable carbon credit.
Environmental attribute certification
Certifying environmental outcomes against recognised standards and registries.
Emissions monitoring & reporting (MRV)
Measuring, reporting and verifying emissions data to the standard credit buyers require.
Registry listing & verification support
Managing the process of listing a project on a recognised carbon registry.
Buyer matching & offtake structuring
Connecting verified credits with corporate buyers through structured offtake agreements.
Portfolio & risk management advisory
Helping customers manage carbon credit exposure across a portfolio of projects.
The Payoff
Value addition for business.
Every solution above is engineered to a technical outcome — cleaner water, diverted waste, a new fuel stream, a verified credit. Underneath that, each one also moves a specific set of business levers.
Lower operating costs
Reduced freshwater withdrawal and disposal fees compound over the life of an asset, often outweighing the cost of the infrastructure itself.
New revenue streams
The same tonne of waste or litre of water can generate service, product and environmental revenue at once, instead of a single disposal cost.
Regulatory & compliance confidence
Infrastructure built ahead of tightening water, waste and emissions regulation, with the monitoring and reporting already in place.
Operational resilience
Less exposure to water scarcity, waste disposal risk and energy price volatility — each one a growing line item on the risk register.
ESG & reporting credibility
Measurable, verifiable outcomes that hold up under investor, lender and regulator scrutiny, not just a sustainability page claim.
Asset & enterprise value
Long-life infrastructure and long-term contracts that strengthen the balance sheet rather than sitting on it as a cost centre.
Delivery
How our services bring this to life.
None of the solutions above are self-installing. Every one of them is delivered through the same six service lines — engaged independently, or as a single integrated delivery model from design through to decades of operation.
EPC
Turns every solution above from design into built, commissioned infrastructure.
Project Advisory
Structures the technical and commercial case before a shovel goes in the ground.
Operations & Maintenance
Keeps recovery, fuels and carbon infrastructure performing at design capacity for the life of the asset.
Asset Ownership & Financing
Owns and finances the infrastructure so customers don't have to carry the capital risk.
Carbon Sequestration
Extends decarbonisation solutions into dedicated nature-based, technology-based and hybrid carbon removal projects.
Research & Innovation
Pilots the next generation of recovery and fuels technology before it reaches commercial scale.
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.