STP cost guide
Sewage treatment plant cost in India
The price of an STP depends on its capacity, its technology and what it costs to run for years afterwards. Below are indicative figures from real Aquatron STP projects, compared with conventional MBBR, SBR and MBR plants of the same size.
1 MLD plant: upfront cost (CAPEX)
| Technology | Indicative CAPEX |
|---|---|
| Aquatron STP | ₹5.14 Cr |
| MBR | ₹7.61 Cr |
| SBR | ₹8.24 Cr |
| MBBR | ₹9.15 Cr |
That's roughly 35% lower project cost than a conventional plant, before any running-cost savings.
75 KLD villa development: CAPEX and AMC
| Item | Conventional STP | Aquatron STP |
|---|---|---|
| Upfront cost | ₹1.64 Cr | ₹88.9 L (45.8% less) |
| Annual maintenance (AMC) | ₹15 L | ₹3.2 L |
Why running costs fall too
Up to 65% less electricity
The separation stage has no moving parts and uses no power.
Up to 80% lower OPEX
No dedicated operator is needed for plants up to 500 KLD.
No sludge disposal
Solids compost in a sealed bio-chamber, so there's nothing to cart away.
About 60% less space
Built-up area is released back to the development.
Get a cost estimate for your site
Figures are indicative. Final cost depends on flow, site conditions and reuse needs. Share your details and India Water Systems will size an Aquatron STP for you, anywhere in India.