What we do
Focused on what we do best.
BOT and EPCC delivery, portable demin, seawater desalination and water reclamation — the capabilities we've built the firm around, with the engineering to back them.
How we deliver
EPCC or BOT — your capital, your choice
Two ways to build with us: fund and own the asset outright, or buy treated water and let us carry the plant.
EPCC — you own the asset
Full engineering, procurement, construction and commissioning, delivered turnkey. You fund the plant; we design it, build it and hand it over commissioned, documented and performing — one accountable contractor from survey to start-up.
- Turnkey EPCC delivery
- Single-point accountability
- Commissioning, handover & training
BOT — we carry the plant
A Build-Operate-Transfer concession: we finance, build and operate; you simply pay for treated water or capacity. Zero client CAPEX, contractually guaranteed output, and a sound asset transferred to you at the end of the term.
- Zero client CAPEX
- Guaranteed output for the term
- Asset transferred at term
How a BOT concession runs
Build
We survey, design, finance and construct the plant — fixed scope, with cost and schedule overruns carried by us.
Operate
Our engineers run and maintain the asset for the concession term, with output contractually guaranteed.
Transfer
At the end of the term, a sound, well-maintained asset transfers to you — documented, compliant and ready to run.
Risk allocation
Your risks, carried by us.
Under a BOT concession, the burdens that normally fall on the client move to Envirotech for the life of the contract.
| Risk area | Conventional — you bear it | Envirotech BOT — we bear it |
|---|---|---|
| Capital funding | Full CAPEX funded up-front by the client | We finance the plant — zero client CAPEX |
| Design & technology | Client carries the risk if the plant under-performs | We own the design and technology selection |
| Construction | Cost and schedule overruns hit the client | Fixed scope — overruns are on us |
| Performance | Client is liable for shortfalls and breaches | Guaranteed output, backed by us |
| Operation & maintenance | Client staffs, runs and maintains the asset | We operate and maintain for the full term |
| Lifecycle | Client funds upgrades and obsolescence | We maintain and transfer a sound asset |
Portable Demineralised Water System
Water on wheels.
Our portable demin plants arrive containerised, pre-commissioned and ready to run — feed tank to treated water in one mobilised package, for turnarounds, emergency supply or bridging capacity while a permanent plant is built.
- Mobilised in days, not months
- Filtration, RO and mixed-bed polishing
- Short- and long-term hire options
Seawater desalination
Freshwater, engineered from the sea
Membrane desalination for coastal industry and utilities — where freshwater is the constraint on growth, SWRO turns the one resource you have plenty of into the one you need. We design to what the site actually requires, with energy and brine handled honestly from day one.
- SWRO system design & delivery
- Energy-conscious process selection
- Brine management
Water reclamation
Every drop, twice.
Closing the water loop — treating wastewater to a standard worth reusing, so effluent stops being a disposal cost and starts being supply. For water-stressed sites and tightening discharge limits, reclamation is usually the most defensible drop of water on the balance sheet.
- Water reclaim & reuse systems
- Effluent polishing & recovery
- Resource efficiency studies
Also in the offering
The engineering that holds it all together.
Water & Wastewater Treatment
Design, build and commissioning of treatment plants — from raw-water intake and process water to industrial effluent, engineered to your discharge limits.
Operation & Maintenance
Long-term plant operation with guaranteed performance — staffed, monitored and maintained by the engineers who built it.
Digital Monitoring & Compliance
Instrumentation and reporting that give you defensible data — water balance, quality trends and regulatory submissions.
Sectors we serve
Built for mission-critical operations.
Where reliability, compliance and environmental risk management are essential to business continuity.
Tell us which model fits — or let us model both.
Ask us to compare an EPCC build against a BOT concession for your site — the numbers usually make the decision easy.