Rispri LabsENGINEERING A CIRCULAR FUTURE

RESEARCH PARTNERSHIPS

Research partnerships with
IIT Bombay and ICT Mumbai.

Rispri Labs takes proven technologies from two of India's most respected institutes and builds them into working plants for industry and cities. Less water wasted, less energy burnt, less sent to landfill, and safer work for the people who run it.

Request a pilot Find your solution
RESEARCH TO REALITYInstitute science. Industrial delivery.
Zero liquid discharge treatment plant
Research partnerships

In partnership with

Indian Institute of Technology Bombay logo
Indian Institute of Technology Bombay#3 in engineering, NIRF 2025
 Institute of Chemical Technology, Mumbai logo
Institute of Chemical Technology, MumbaiIndia's chemical technology institute since 1933
Rispri Labs logo
Rispri LabsEngineering, delivery and NABL-accredited testing since 1999

The partnership

India's leading research. One partner to deliver it.

Breakthrough treatment science too often stays in journals. The institutes bring patented, peer-reviewed technology. Rispri brings site testing, process engineering, installation, operation and verification, so you deal with one accountable partner from pilot to full scale.

#3
IIT Bombay among India's engineering institutes, NIRF 2025
1933
Year ICT Mumbai began training India's chemical industry
6
Granted Indian patents behind our solution portfolio
10
Solutions ready for a pilot at your site

The impact

Results anyone can understand.

Every figure below comes from the research teams' pilot plants, field trials and industrial installations.

86 of 100

litres of RO reject turned back into clean water in pilot runs.

RO reject recovery · with ICT Mumbai ↗944 of 1,000

litres of water recovered from every 1,000 litres of paneer whey.

Dairy whey recovery · with ICT Mumbai ↗98 of 100

parts of oil separated from water by the membrane.

Oily wastewater · with ICT Mumbai ↗Zero

workers sent down a manhole to clear a blockage.

Sewer and drain safety · with IIT Bombay ↗30 minutes

to cut COD in dye effluent by over 80%.

Dye effluent treatment · with ICT Mumbai ↗No steam

Your effluent evaporates using outside air or heat you already throw away.

ZLD evaporator · with IIT Bombay ↗

Our partners

Two institutes. Ten solutions.

Each institute brings the research. Rispri Labs brings site testing, engineering, installation and operation, so you deal with one accountable partner.

Indian Institute of Technology Bombay

One of India's top-ranked engineering institutes, and the country's #2 for innovation. Its heat-transfer, process and civil engineering labs developed the hardware behind our ZLD, biogas and sewer-safety solutions.

Established
1958
NIRF 2025, engineering
#3
NIRF 2025, innovation
#2
Solutions with Rispri
4
Zero liquid discharge on air, not steamConcentrate RO reject and effluent using ambient air or waste heat instead of live steam.
No steamambient air or waste heat
Biogas upgrading with just waterRemove CO₂ from raw biogas at near-atmospheric pressure, with plain water and no compressor.
0compressors before scrubbing
Sewers cleaned with no one insideClear blocked sewers without manual entry, keep drains free of debris and warn crews of toxic gas.
0workers in the manhole
Waste heat into drying and fresh waterTurn low-grade waste heat into product drying and fresh water with a compact panel exchanger.
13.5×more surface

Institute of Chemical Technology, Mumbai

For over 90 years the institute that trained India's chemical industry. Its separation, materials and process chemistry research powers our forward osmosis, advanced materials and resource-recovery solutions.

Established
1933
Specialism
Chemical technology
Status
Deemed university
Solutions with Rispri
6
Turn RO reject into water and fertiliserRecover water from RO reject at near-atmospheric pressure and sell the concentrate as fertiliser or brine.
86%of reject recovered
Dairy whey into water and lactoseRecover 94% of the water in whey and concentrate lactose for sale, at low pressure.
94%water recovered
Dye effluent cleared in 30 minutesBreak down dyes with a reusable graphene catalyst and polish colour with selective adsorbents.
83%COD cut in 30 min
Oil out of water, 98% of itSeparate oil and water at over 98% efficiency with reusable graphene sponges and membranes.
98%oil separated
Recover metals instead of making sludgeCapture heavy metals and rare earths from acidic streams with selective, reusable polymer adsorbents.
90%+metals captured
Farm waste into clean fuel pelletsTurn banana root waste into binder-free, sulphur-free fuel pellets for boilers and co-firing.
16.3MJ/kg energy

Find your solution

Start with the problem you have.

Zero liquid discharge treatment plant
IIT BombayOperating in industry
Paying too much to reach ZLD?

Zero liquid discharge on air, not steam

Concentrate RO reject and effluent using ambient air or waste heat instead of live steam.

No steamambient air or waste heat
Reverse osmosis plant
ICT MumbaiPilot scale
Stuck with RO reject?

Turn RO reject into water and fertiliser

Recover water from RO reject at near-atmospheric pressure and sell the concentrate as fertiliser or brine.

86%of reject recovered
Bio-CNG upgrading plant layout
IIT BombayField validated
Want Bio-CNG from a small digester?

Biogas upgrading with just water

Remove CO₂ from raw biogas at near-atmospheric pressure, with plain water and no compressor.

0compressors before scrubbing
Municipal infrastructure works
IIT BombayField demonstrated
Sending workers into manholes?

Sewers cleaned with no one inside

Clear blocked sewers without manual entry, keep drains free of debris and warn crews of toxic gas.

0workers in the manhole
Food and dairy processing
ICT MumbaiPilot scale
Is whey overloading your ETP?

Dairy whey into water and lactose

Recover 94% of the water in whey and concentrate lactose for sale, at low pressure.

94%water recovered
Textile dyeing and processing
ICT MumbaiValidated in trials
Colour and COD won't come down?

Dye effluent cleared in 30 minutes

Break down dyes with a reusable graphene catalyst and polish colour with selective adsorbents.

83%COD cut in 30 min
Oil and petroleum facility
ICT MumbaiValidated in trials
Oil and grease over the limit?

Oil out of water, 98% of it

Separate oil and water at over 98% efficiency with reusable graphene sponges and membranes.

98%oil separated
Chemical process plant
ICT MumbaiValidated in trials
Metals leaving in acidic effluent?

Recover metals instead of making sludge

Capture heavy metals and rare earths from acidic streams with selective, reusable polymer adsorbents.

90%+metals captured
Industrial cooling tower
IIT BombayPrototype proven
Throwing away low-grade heat?

Waste heat into drying and fresh water

Turn low-grade waste heat into product drying and fresh water with a compact panel exchanger.

13.5×more surface
Agricultural fields
ICT MumbaiValidated in trials
Looking to replace coal?

Farm waste into clean fuel pellets

Turn banana root waste into binder-free, sulphur-free fuel pellets for boilers and co-firing.

16.3MJ/kg energy
A restored pond with water lilies

Project spotlight · 11

A town lake brought back to life in Marathwada.

A 5.7-hectare lake in one of India's most drought-hit regions was revived as a complete water system, not just desilted. Every stream that enters or leaves it is put to use.

  1. Decentralised sewage treatment stops untreated sewage reaching the lake.
  2. Desilting restores storage and groundwater recharge.
  3. An RO unit turns lake water into safe drinking water for the town.
  4. Forward osmosis recovers the RO reject as nutrient solution for nearby farms, so nothing is wasted.
  5. Constructed wetlands with hardy native plants polish rural wastewater naturally.
Our pond and lake programme

How we work

From research result to running plant.

  1. 1

    Test

    Our accredited lab characterises your effluent, sludge or water.

  2. 2

    Match

    We match the right technology with our research partners.

  3. 3

    Pilot

    A skid or pilot module runs on your own stream.

  4. 4

    Scale

    Rispri engineers, builds and commissions the full plant.

  5. 5

    Verify

    Ongoing testing proves performance and compliance.

Why partner with us

The science of an institute. The accountability of a contractor.

Patented, peer-reviewed

Every solution rests on granted patents or published, peer-reviewed results from IIT Bombay and ICT Mumbai.

Proven on your stream

Our accredited laboratory tests before, during and after, so performance is measured, not assumed.

Delivery since 1999

The team that builds ETPs, STPs and ZLD plants across India takes each technology from pilot to full scale.

Circular by design

Reject becomes fertiliser, whey becomes lactose, biogas becomes fuel. Waste streams turn into revenue.

Questions

Frequently asked questions.

Can we try a technology before committing to a full plant?

Yes. Most solutions start with a pilot or skid running on your own effluent, water or waste. Our laboratory measures the results so you can decide on full scale with real data from your site.

How ready are these technologies?

Each solution shows its stage. Some are already operating in industry, some have run as pilot plants or field demonstrations, and some have been validated in controlled trials. We recommend the right path for each, from a site pilot to direct full-scale design.

Who designs, builds and maintains the plant?

Rispri Labs. Our research partners develop the core technology; we handle site assessment, process design, installation, commissioning, operation and testing as one accountable partner.

Our problem is not listed. Can you still help?

Very likely. These solutions grow as our research partnerships do. Tell us about your stream and we will look for the best fit across our partners and our own treatment portfolio.

THE NEXT STEP

Put institute research
to work at your site.

Tell us about your effluent, reject stream or waste. We will recommend a technology and a pilot to prove it.

Request a pilot
EXPLORE ANOTHER SOLUTIONETP, STP & ZLD plantsCONTINUE EXPLORINGOur accredited laboratory