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Smart Water Solutions. Local Expertise. Global Impact

We offer a comprehensive range of both proven and innovative technologies and solutions for water and wastewater challenges. Our expertise covers wastewater treatment, sludge management, water reuse, and the recovery of valuable resources and energy from water streams. We're focused on turning your environmental costs into opportunities, helping you meet the evolving demands of both industrial and municipal sectors. With our Design, Build, Finance, Maintain, and Operate (DBFMO) model, we provide full-service project execution. We're always extending our offering to ensure you stay ahead of the latest environmental regulations and market trends.

Our 'Customer for Life' philosophy means we join you at the beginning of your water journey and stay with you every step of the way, helping you realize the full value of your water and wastewater assets. Through our Technology, Services, Solutions, and our Reduce, Reuse, Remove, and Recycle (4R) Principle, we're committed to protecting our planet's most precious resource.

This is our #MissionWater. Are you ready to join us in shaping a more sustainable future?

4 R principle, Reduce, Remove, Reuce, Recycle

About Us

Our Mission

At NSI UK & Ireland, we believe water is our planet's most precious resource, and it's time everyone treats it that way. Our purpose is to be an advocate for water, ensuring that municipalities, industries, communities, and individuals across the UK and Ireland truly value it.

Beyond our daily work of providing reliable water supplies and responsible treatment solutions, we're committed to acting and influencing others. Together, we can invest in saving water and innovate new models to preserve this vital resource.

For too long, we've treated clean water as an endless, cheap commodity, overlooking its true worth, but with increasing pressure on water quantity and quality, it's clear this resource desperately needs revaluing – environmentally, socially, economically, and technologically. It’s time to turn the tide - we need to ensure water is valued as the revitalising force it has always been, making its benefits accessible to all.

We call this #MissionWater. Are you ready to join the movement and help us secure a sustainable water future for the UK and Ireland?

Discover our solutions

Econvert Anaerobic Rental at Nordzucker
  • Industrial
  • Food & Beverage
  • Pulp & Paper

Anaerobic – Econvert Anaerobic Rental

  • Wastewater
  • Industrial water
  • Resource Recovery
We understand that CAPEX is not always readily available to invest in anaerobic wastewater treatment, or that you may want to avoid long-term financial commitments. At Econvert, (...)
  • Industrial
  • Food & Beverage

Anaerobic – Econvert-DGF

  • Resource Recovery
  • Industrial water
  • Wastewater
The Econvert-DGF® (Dissolved Gas Flotation) is an anaerobic solution developed to treat raw wastewater with high concentrations of total suspended solids (TSS) and fats, oils, (...)
  • Municipal
  • Municipal drinking water
  • Municipal wastewater

Digital solution – Hydranet

  • Wastewater
  • Drinking water
Real-Time Energy Optimization for Water Networks Hydranet is Riventa’s digital platform designed to monitor, analyze, and optimize the performance of pumps, blowers, fans, and (...)
  • Industrial
  • Food & Beverage
  • Pulp & Paper
  • Fish processing
  • Pharma & personal care
  • Mining and minerals
  • Energy
  • Municipal
  • Municipal wastewater
  • Municipal drinking water

Filter – FlooScreen™

  • Drinking water
  • Process water
  • Industrial water
  • Wastewater
FlooScreen™ screening units are advanced filtration systems designed for industries, communities where high capacities of high-quality water screening is necessary to efficiently (...)
  • Municipal
  • Municipal drinking water
  • Municipal wastewater
  • Industrial
  • Energy

DAF – High rate concrete i-DAF

  • Industrial water
  • Drinking water
  • Wastewater
The NSI high rate concrete i-DAF, a dissolved air flotation system, removes solids in primary, secondary, and tertiary water treatment within compact spaces.
  • Municipal
  • Municipal drinking water
  • Municipal wastewater
  • Industrial
  • Food & Beverage
  • Fish processing
  • Pulp & Paper
  • Pharma & personal care
  • Semiconductor industry
  • Mining and minerals
  • Energy

NSI Digital Platform

  • PFAS
  • Micropollutants
  • Wastewater
  • Drinking water
  • Source water
  • Rainwater
  • Resource Recovery
  • Sludge
  • Process water
  • Industrial water
NSI Digital Solutions’ Platform and our other services and designed are developed to combine deep industry expertise with advanced digital capabilities, supporting industrial (...)
Econvert-RTF Biogas Desulfurization
  • Industrial
  • Food & Beverage
  • Pulp & Paper
  • Energy

Anaerobic – Econvert-RTF

  • Wastewater
  • Industrial water
The Econvert-RTF® is a regenerative trickling filter which achieves high H2S removal efficiency, consumes no caustic soda and enables aerobic effluent reuse. The technology prevents (...)
Econvert-Dsulph biogas desulfurization
  • Municipal
  • Municipal wastewater
  • Industrial
  • Food & Beverage
  • Pulp & Paper
  • Energy

Anaerobic – Econvert-Dsulph

  • Resource Recovery
  • Industrial water
  • Sludge
  • Wastewater
The Econvert-Dsulph® is a proven, high-efficiency biogas desulfurization solution that combines the chemical absorption of hydrogen sulfide (H2S) in the scrubber with the biological (...)
  • Municipal
  • Municipal wastewater
  • Industrial
  • Food & Beverage
  • Energy

Ammonia stripper – ByoFlex

  • Resource Recovery
  • Industrial water
  • Sludge
  • Wastewater
With the revolutionary ByoFlex® system nitrogen is recovered from highly contaminated substrates. The ByoFlex® system is a one-of-a-kind ammonia stripping unit. Through years (...)
  • Industrial
  • Food & Beverage
  • Fish processing
  • Pulp & Paper
  • Energy
  • Municipal
  • Municipal wastewater

Screw press – NSP

  • Industrial water
  • Sludge
  • Wastewater
The sludge dewatering screw press from NSI (NSP) offers a cost-effective and sustainable solution for sludge dewatering. Designed to treat both primary and biological sludge, the (...)
  • Industrial
  • Pharma & personal care
  • Energy

Membrane – DEEPEST®

  • Wastewater
  • Industrial water
  • Process water
The Deepest System® is a patented multi-stage, multi-membrane purification system developed by Sodai. It employs sequential microfiltration, nanofiltration, and reverse osmosis (...)
  • Municipal drinking water

Membrane – CeraMac®

  • Drinking water
Ceramic Membrane Microfiltration System   CeraMac® is an innovative and cost-effective ceramic membrane filtration solution, designed to provide high-performance, sustainability, (...)
  • Municipal
  • Municipal wastewater
  • Industrial
  • Food & Beverage
  • Pulp & Paper
  • Pharma & personal care
  • Mining and minerals
  • Energy

Aerobic – BIOCTOR-FlooBed®

  • Wastewater
  • Industrial water
A highly efficient and compact biological treatment process to treat a wide variety of industrial and municipal wastewater streams and ensure environmental compliance. The patented (...)
  • Municipal
  • Municipal wastewater
  • Industrial
  • Food & Beverage
  • Pulp & Paper

Anaerobic – Econvert-IR

  • Wastewater
  • Industrial water
The Econvert-IR® (Internal Recirculation) is designed to create the ideal process conditions – even under extreme conditions. Thanks to its unique two-stage settling system, (...)
  • Food & Beverage
  • Industrial
  • Pulp & Paper

Anaerobic – Econvert-UASB

  • Wastewater
  • Industrial water
The Econvert-UASB®(Upflow Anaerobic Sludge Blanket) has a proven track record for decades. Its robust and reliable configuration enables the handling of large varieties of wastewater (...)
Econvert-EGSB Anaerobic Wastewater treatment
  • Food & Beverage
  • Pulp & Paper
  • Pharma & personal care
  • Industrial

Anaerobic – Econvert-EGSB

  • Wastewater
Econvert-EGSB® (Expanded Granular Sludge Bed) is the optimal solution after decades of experience, development and optimization. Combining a small footprint with robust internals (...)
  • Pulp & Paper
  • Food & Beverage
  • Fish processing
  • Pharma & personal care
  • Energy
  • Mining and minerals
  • Municipal
  • Industrial
  • Municipal wastewater

DAF – FlooDaf®

  • Process water
  • Industrial water
  • Resource Recovery
  • Wastewater
  • Sludge
  • Drinking water
A high-capacity, compact flotation solution for various large-scale water and wastewater treatment applications enabling raw material recovery, decreased water consumption and (...)
  • Municipal drinking water
  • Municipal

Flocculation-coagulation – ILCA®

  • Drinking water
In-Line Coagulation and Adsorption ILCA® is a compact in-line coagulation and adsorption process developed by PWNT to simplify and optimise pre-treatment upstream of advanced (...)
CirTec IntenSieve Gaarkeuken
  • Municipal
  • Municipal wastewater
  • Industrial
  • Food & Beverage
  • Fish processing

Filter – IntenSieve®

  • Wastewater
  • Industrial water
  • Resource Recovery
The IntenSieve® is a rotating belt finesieve. A compact, chemical-free finesieving solution that removes suspended solids and frees biological capacity.

Our References

  • Municipal
  • Municipal drinking water

Mayflower Water Treatment Works (South West Water)

More about this reference
  • Food & Beverage
  • Industrial
Rock, Cornwall, United Kingdom

Sharp’s Brewery Wastewater Treatment Plant

More about this reference

Contact our experts

NSI UK & Ireland - Truro Office

Main Office

Nanjerrick Court,
Allet
Truro
TR4 9DJ
United Kingdom

NSI UK & Ireland - Wokingham Office

15 Metro Centre,
Toutley Road
Wokingham
RG41 1QW
United Kingdom

NSI UK & Ireland - Stoke Office

NSI Mobile Water Solutions UK Ltd
Whittle Road
Stoke-on-Trent,
ST3 7QD
United Kingdom

NSI UK & Ireland - Grangemouth Office

Dundas Building – North Gate
Earls Road
Grangemouth
FK3 8XG
United Kingdom

NSI UK & Ireland - Gainsborough Office

Unit 33,
Corringham Road Industrial Estate,
Gainsborough,
DN21 1QB
United Kingdom

NSI UK & Ireland - Wallsend Office

Town Hall Chambers,
High Street East
Wallsend,
NE28 7AT
United Kingdom

NSI UK & Ireland - Wynyard Office

Evolution1, Wynyard Avenue,
Wynyard Park,
Billingham,
TS22 5TB
United Kingadom
Team collaboration, Vacancies

Join #MissionWater and be part of NSI UK & Ireland team