Aquatron® STP technology and specifications

Separate first, treat second

The Aquatron sewage treatment plant is a solid-liquid separation technology STP: faecal solids are diverted before the plant, so only liquid is treated. That is what makes it a compact STP with no sludge pumps, no presses and nothing for an operator to babysit — a low maintenance STP whose separation stage runs on flush energy alone.

Commercial office tower in India with an Aquatron sewage treatment plantLarge apartment complex in India served by Aquatron STP unitsIndustrial factory campus in India with an Aquatron sewage treatment plant

01

Separation

Flush momentum, centrifugal force and gravity part solids from water. No motors, no power, no chemicals.

02

Bio-chamber

Solids dry and compost naturally. Bacteria convert up to 95% into vapour and CO₂, leaving a scoop of soil.

03

Liquid treatment

98% of the liquid joins grey water for aeration and ozonation — a far lighter load than mixed sewage.

04

Polish & reuse

Sand and carbon filtration plus UV disinfection deliver water for gardening, flushing or chiller make-up.

What does Aquatron® do?

  • Separates solids and liquids the instant they arrive
  • Uses only the momentum of the flushing water, centrifugal force and gravity
  • Stops sludge from ever forming

What happens to the liquids?

  • 98% of the liquid is separated off immediately
  • The remaining 2% drops into the bio-chamber and drains out
  • Separated flushing water and urine can be mixed with grey water
  • Separated liquids are then treated to the standard you need with conventional STP stages
Diagram of the Aquatron separator splitting urine and water from faeces and paper into the bio-chamber
Separator and bio-chamber: liquids drain away, solids compost dry.
Aquatron STP process — extracted at high resolution from the January 2026 brochure.

What happens to the solids?

  • Faecal matter, toilet paper and any other solids fall into the bio-chamber
  • Natural bacteria consume and convert up to 95% of it into water vapour and carbon dioxide
  • What is left is a small scoop of hygienic, odourless manure
  • The bio-chamber rarely needs emptying, and the compost is easy to handle
  • No insects or odours around the dry bio-chamber
Decomposed faecal matter in the Aquatron bio-chamber — dark, hygienic compost ready to scoop out
Decomposed faecal matter in the bio-chamber.

Aquatron® versus conventional STPs

Conventional technologies such as MBBR and SBR treat sewage as one mixed stream of solids and liquids. That choice is what produces sludge without pause, pushes up energy use and makes the plant operationally complex.

Aquatron starts somewhere else entirely: solids and liquids are parted at the source. Sludge never forms, and the need for aeration, pumping and manual intervention drops sharply. The result is a plant that is more energy-efficient, easier to run, far less dependent on skilled manpower, and more compact and cost-effective over its life.

By dealing with the root cause of sludge rather than its symptoms, Aquatron offers a more efficient and more sustainable alternative to conventional STP technology.

What comes out the other end

Readings from the 50 KLD Aquatron® retrofit at WeWork BlueOne Square, Gurgaon — combined inlet versus final treated water. Every parameter clears NGT and CPCB limits.

Third-party lab tested
ParameterInletTreatedStatus
BOD (3 days)30 mg/ltr777.3PASS
COD100 mg/ltr19824PASS
TSS40 mg/ltr975.2PASS
Ammoniacal nitrogen5 mg/ltr140.67PASS
Oil and grease10 mg/ltr6.10.2PASS
ColiformsCFU/100 ml9,1005PASS
E. coliCFU/100 ml128AbsentPASS

Against MBBR, SBR and MBR

A 75 KLD villa layout costs ₹1.64 Cr as a conventional plant and ₹88.9 L with Aquatron® — 45.8% less upfront, and an AMC of ₹3.2 L instead of ₹15 L.

Aquatron®₹5.14 Cr
MBR₹7.61 Cr
SBR₹8.24 Cr
MBBR₹9.15 Cr
Original technology comparison chart from the January 2026 Aquatron brochure.
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Installed projects, their sites and what changed

Gurgaon, Haryana · 50 KLD

WeWork BlueOne Square

Retrofit around live plumbing. Treated water measured BOD 7.3, coliforms down from 9,100 to 5 and E. coli absent — every parameter inside NGT and CPCB limits.

India · 320 KLD

Apollo Hospitals

A continuous 24×7 load carried with roughly 65% less power than a conventional plant and no operator on shift.

Ladakh · High-altitude site

Indian Army post

Separation runs without any power at all and the bio-chamber sits frost-protected — no sludge to remove in a place where removal is not practical.

Chennai, Tamil Nadu · 110 KLD

Voora's Ocean 27

About 60% less plant area released back to the development, with an AMC of ₹3.2 L against ₹15 L for the conventional option.

New Delhi · 380 KLD

Arun Jaitley Cricket Stadium

Match-day peaks absorbed with no operator on shift and nothing to cart away afterwards.

Wadala, Mumbai, Maharashtra · 380 KLD

Shantilal Sanghavi Cancer Hospital

Odour-free treatment running 24×7 immediately alongside patient areas, with no open sludge anywhere on site.

Wadala, Mumbai, Maharashtra · 160 KLD

Wadala Eye Hospital

A compact footprint on a tight urban plot, with treated water reused for flushing.

India · 75 KLD

Villa development layout

₹88.9 L installed against ₹1.64 Cr for a conventional plant of the same duty — 45.8% less upfront.

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