Aquatron STP by India Water Systems · Available all over India
Sludge free.
Smell free.
Operator free.Aquatron® sewage treatment plants (STP) for India
A patented European separation process that keeps faecal solids out of your sewage line altogether — no moving parts, no electricity, no chemicals. 400+ plants in India, 12,000+ worldwide, engineered and serviced by India Water Systems at sites across the country.
Design · Execution · Retrofits · O&M
Measured against a conventional STP of the same capacity
Less to build. Less to run.
Capital cost
35%
Lower project CAPEX
Power bill
65%
Less electricity drawn
Running cost
80%
Lower annual OPEX
Footprint
60%
Less built-up space
The four advantages every Aquatron owner gets
Why Aquatron® STP
One separation decision changes everything downstream — what you build, what you spend and who you need on site.
No sludge to handle
Solids never enter the plant, so there is no sludge pump, no press and nothing to cart away.
No operator up to 500 KLD
No moving parts in the separation stage means routine attention instead of round-the-clock shifts.
50-year design life
Patented European technology, proven over 38+ years with 12,000+ installations worldwide.
Water fit for reuse
Filtered and UV-disinfected output for gardening, flushing and chiller make-up.
Proven worldwide since 1986 · 400+ sites in India
Compact, energy-efficient, sludge-free STP solutions
Designed for CPCB-compliant, reliable and odour-free operation. Reduce costs, remove the hassle, get more out of the plant — an Aquatron STP is less a treatment system than a smarter investment across the whole life of your project.
01
Lower project cost from day one
Measured against a conventional STP of the same capacity, an Aquatron plant keeps saving:
- Up to 35% lower CAPEX
- Up to 80% lower OPEX
- Up to 65% less power drawn
- Up to 60% smaller footprint — the area you free up goes back into revenue-earning space
02
Operations without the usual headaches
The day-to-day running of the plant stops being a problem to manage:
- No sludge to handle or dispose of
- Odour-free operation
- Low-noise system design
- Steady performance through load swings
- Barely any dependence on skilled operators
03
Built for modern infrastructure projects
Especially suited to sites where every square metre is accounted for:
- Fits space-constrained developments
- Straightforward compliance and approvals
- Cuts long-term maintenance risk
- Adds to project value and sustainability credentials
04
Compliance and green building standards
Engineered to satisfy the norms your project is assessed against:
- Treatment in line with NGT and PCB discharge standards
- IGBC GreenPro-certified technology
- Treated water fit for reuse applications
| Comparison point | Conventional STP | Aquatron-based STP |
|---|---|---|
| Complexity of equipment | High | Low |
| Repair and maintenance requirements | High | Low |
| Skilled operator requirement | Yes | No |
| Energy consumption and cost | High | Low |
| Likelihood of odour problems | High | Low |
| Required tank capacity | 2× actual wastewater volume | Actual wastewater volume |
| Lifespan of equipment | 10 years | 50 years |
| Quality of output | PCB standard | PCB standard |
Performance and savings may vary with project conditions.
Trusted where downtime is not an option
High-altitude army posts, hospitals running continuous loads, co-working floors and residential towers — the same separation process, sized to the site. First prize at Swachhathon 1.0 in 2017, 38+ years of field history.
See installed references →At a glance
- Plants in India
- 400+
- Worldwide
- 12,000+
- Years of field history
- 38+
- Design life
- 50 yrs
Serving projects all over India
Our head office is in Hyderabad, and we work across the country. Aquatron STP solutions from India Water Systems are surveyed, sized, installed and serviced at sites in every state of India, from Ladakh to Chennai, with compact STP installations for villas, farmhouses, apartments, offices, malls, hospitals and factories.
Where Aquatron® STPs are working
The same process scales from a single farmhouse to a 380 KLD institutional plant — only the number of units changes.
Large apartment complexes
Hundreds of WCs on one line, zero sludge to cart away.
Hospitals
Continuous 24×7 load with no plant downtime.
Commercial & office buildings
Retrofits around live plumbing, no new plant room.
Malls & retail
Peak-hour surges handled at 60 l/s per unit.
Factories & industrial campuses
Sanitary streams treated without an operator on shift.
Villas & farmhouses
₹88.9 L against ₹1.64 Cr conventional on a 75 KLD layout.
Our STP solutions and services
Aquatron STP solutions from India Water Systems work to your treatment standard at capacities from 1 KLD up to several MLD. Tell us the site and we take it from there — design, execution, retrofits, and operation and maintenance to the extent you want us involved.
Retrofits · Upgrade your existing STP
Struggling with your current STP? Convert it to Aquatron®
Smell, breakdowns and high running costs usually come from the plant, not the building. We retrofit and upgrade existing systems around live plumbing — no new plant room needed — as we did at the 50 KLD WeWork BlueOne Square retrofit in Gurgaon. It's a practical fix for underperforming STPs.
Get a retrofit assessment- Better treatment efficiency and cleaner output
- Odour problems eliminated
- Lower power and maintenance bills
- Fast payback — often within months
01
Design
Engineering built around your site
Every plant is designed to the site's conditions, required capacity and discharge standard.
- –Layouts tuned for treatment performance and efficiency
- –Detailed tank drawings and plant layouts
- –Tied into your existing plumbing and sewer lines
Engineered for compliance and decades of dependable running.
02
Execution
One team from supply to commissioning
Our technical team runs and supervises the whole implementation.
- –Equipment supply and logistics
- –Tank construction or fabrication
- –Plumbing and electrical integration
- –Installation and commissioning
Smooth delivery with minimal delays.
03
O&M
Dependable operation and support
Plants are built for automation, so they run efficiently with very little manual work.
- –Remote monitoring and performance tracking
- –Preventive maintenance and servicing
- –Operator support on larger installations
Less complexity, less dependence on staff.
Who we work with · 400+ installations in India
- Corporate & commercial
- Residential apartments & villas
- Hospitals & healthcare
- Industrial & manufacturing
- Educational institutions
- Government & defence
- Hotels & resorts
Channel partners wanted
Partner with India Water Systems for Aquatron® solutions in your city
We are seeking interested channel partners across India — STP consultants, STP vendors & service providers, MEP consultants, green building consultants and others who want to offer a compact, low maintenance STP to customers in their region.
Proven product
400+ Aquatron installations across India to point customers to.
Technical backing
Sizing, design support and commissioning help from our Hyderabad team.
Growing demand
Every apartment, hospital, hotel and factory in your city needs a working STP.
Questions engineers ask us first
How can a sewage plant run without producing sludge?+–
The patented European separation stage pulls faecal solids out of the flow before biology begins. Those solids drop into a bio-chamber and compost down to a small volume of dry humus, so there is no wet sludge, no press and nothing to cart away.
Does the separation stage really use no electricity?+–
The separator has no moving parts and works on surface tension and gravity alone. Power is only drawn by the downstream liquid treatment, filtration and UV — which is why sites report up to 65% less electricity than a conventional plant.
Do we need a full-time operator?+–
Up to 500 KLD the plant runs without a dedicated operator. Routine attention — checking the bio-chamber, filters and UV lamp — is enough, and that is the main reason annual OPEX falls by up to 80%.
Is the treated water safe to reuse?+–
Yes. Output is filtered and UV-disinfected for gardening, flushing and chiller make-up. Lab results from installed sites clear NGT and CPCB limits comfortably — for example BOD down from 77 to 7.3 mg/l and E. coli absent.
Will it smell, and how much space does it need?+–
Solids stay sealed in the bio-chamber, so there is no open sludge and no odour nuisance. The layout needs about 60% less built-up space than a conventional STP of the same capacity.
Can it be retrofitted into an existing building?+–
Yes. Retrofits are routine — the WeWork BlueOne Square 50 KLD plant in Gurgaon replaced an existing system. Each unit is 600 × 500 × 500 mm with 110 mm inlet and outlet, serving up to 25 WCs at a 60 l/s peak.
What does it cost compared with MBBR, SBR or MBR?+–
For a 1 MLD plant the indicative CAPEX is ₹5.14 Cr against ₹7.61 Cr for MBR, ₹8.24 Cr for SBR and ₹9.15 Cr for MBBR — roughly 35% lower project cost, before the running-cost savings.
How long does the plant last and who services it?+–
Design life is 50 years, backed by 38+ years of field history, 400+ plants in India and 12,000+ worldwide. India Water Systems handles supply, installation and service anywhere in the country.