What is HX?

HX is the essence of Hydro. It’s interwoven into every strand of Hydro’s story, from our products to our people, our engineering pedigree to our approach to business and problem-solving.

HX is a stamp of quality and a mark of our commitment to optimum process performance. A Hydro solution is tried, tested and proven.

There is no equivalent to Hydro HX.

What is HX?

The HX Promise

HX is inspired by Hydro’s passion for engineering innovation and our drive to push the boundaries of water management technologies. It’s the basis of everything we do.

We question... we challenge... we test and test again until we find the answers... and then we look to make improvements.

No other manufacturer can claim to deliver to the exacting standards of Hydro HX.

The HX Promise

HX is inspired by Hydro’s passion for engineering innovation and our drive to push the boundaries of water management technologies. It’s the basis of everything

We question... we challenge... we test and test again until we find the answers... and then we look to make improvements.

No other manufacturer can claim to deliver to the exacting

The HX Spirit

HX is Hydro’s DNA. It is born of a pioneering spirit that has always kept our products ahead of their time. It’s the driving force that ensures they are robust for 21st century challenges.

HX is our thirst for knowledge... and our dedication to rigorous R & D.

HX is our desire not just for product, but for process excellence. Our products are designed to get the best performance from the entire engineering system of which they are a part.

The HX Spirit

HX is Hydro’s DNA. It is born of a pioneering spirit that has always kept our products ahead of their time. It’s the driving force that ensures they are robust for 21st century challenges.

HX is our thirst for knowledge... and our dedication to rigorous

HX is our desire not just for product, but for process excellence. Our products are designed to get the best performance from the entire engineering system of which

The HX Pedigree

The HX passion was kindled by two visionary men with the same ambition to turn water around and make it work sustainably.

Bernard Smisson, Hydro’s founding father, built and tested the very first full-scale vortex Combined Sewer Overflow in the UK in the early 1960s. His pioneering research marked the beginnings of the technology of hydrodynamic separation and led to the use of vortex technology across the world to power low energy, low maintenance solutions for water management.

The HX Pedigree

The HX passion was kindled by two visionary men with the same ambition to turn water around and make it

Bernard Smisson, Hydro’s founding father, built and tested the very first full-scale vortex Combined Sewer Overflow in the UK in the early 1960s. His pioneering research marked the beginnings of the technology of hydrodynamic separation and led to the use of vortex technology across the world to power low energy, low maintenance solutions

The HX Pedigree

George Wilson, a peer of Smisson’s working in the US sanitation industry, spearheaded the development of vortex technology for the removal of grit in municipal wastewater treatment. His manifesto, The Grit Book, would become a technical ‘bible’ of the US water industry.

The companies Smisson and Wilson founded more than 30 years previously, came together in 2008. Hydro became the world’s authority on advanced vortex hydrodynamic separation technologies and vortex flow control systems for wastewater and stormwater management.

The HX Pedigree

George Wilson, a peer of Smisson’s working in the US sanitation industry, spearheaded the development of vortex technology for the removal of grit in municipal wastewater treatment. His manifesto, The Grit Book, would become a technical ‘bible’ of the US water industry.

The companies Smisson and Wilson founded more than 30 years previously, came together in 2008. Hydro became the world’s authority on advanced vortex hydrodynamic separation technologies and vortex flow control systems for wastewater and stormwater management.

HX People

The HX spark ignited by Smisson and Wilson continues to shine in Hydro people today.

They are inventive, resourceful and tenacious.

They see every engineering problem through to an effective solution.

They take the lead in their fields of expertise.

For them, there is no other way than the HX way.

HX People

The HX spark ignited by Smisson and Wilson continues to shine in Hydro people today.

They are inventive, resourceful and tenacious.

They see every engineering problem through to an

They take the lead in their fields of expertise.

For them, there is no other way than the HX way.

What does HX mean for our customers?

What does HX mean for our customers?

Today, Hydro is a truly international company, which provides strictly local engineering solutions, helping our customers to achieve their water management goals with a broad range of vortex and complementary technologies.

Inspired by HX, we work side by side with our customers, striving to optimise engineering performance – whatever it takes.

Every one of Hydro’s water management products, its advice and service has the HX guarantee. HX is a byword for quality – and confidence for our customers.

Wherever we are in the world, we continue to set the standard.

which provides strictly local engineering solutions, helping our customers to achieve their water management goals with a broad range of vortex and complementary technologies.

Inspired by HX, we work side by side with our customers, striving to optimise engineering performance – whatever

Every one of Hydro’s water management products, its advice and service has the HX guarantee. HX is a byword for quality – and confidence for our customers.

Wherever we are in the world, we continue to set

HX Performance

HX Performance

Hydro HX is our unique commitment to quality, backed by more than 30 years of continuous product development, academic research and industry collaboration.

Hydro’s solutions for the control and treatment of stormwater and wastewater, and for Combined Sewer Overflows are diverse. But in every case we work with our customers to ensure our products integrate into their engineering processes to achieve optimum performance. Whether it is minimising the footprint of a flood storage area, removing pollution from highway runoff or separating solids from wastewater, HX performance provides an assurance our customers can rely on.

Hydro HX is our unique commitment to quality, backed by more than 30 years of continuous product development, academic research and industry

Hydro’s solutions for the control and treatment of stormwater and wastewater, and for Combined Sewer Overflows are diverse. But in every case we work with our customers to ensure our products integrate into their engineering processes to achieve optimum performance. Whether it is minimising the footprint of a flood storage area, removing pollution from highway runoff or separating solids from wastewater, HX performance provides an assurance our

HX Performance - UK Stormwater

HX Performance - UK Stormwater

White Cart Water Flood Prevention Scheme, Scotland

Hydro was challenged to design and build the world’s five largest ever Hydro-Brake® Flow Controls central to Glasgow City Council’s £53m White Cart Water Flood Prevention Scheme.

Normally a shallow river, White Cart Water is prone to flash flooding. As few as twelve hours of rain can cause water levels to rise by six metres. The Hydro-Brakes were central to an attenuation solution using three flood storage areas in the uplands to hold back water during peak storm events. • A total of 2.59bn litres of flood water can be held back by

the three flood storage areas.

• 45% maximum reduction in peak flows

• 1 in 200 years’ flood protection capability

to Glasgow City Council’s £53m White Cart Water Flood

Normally a shallow river, White Cart Water is prone to flash flooding. As few as twelve hours of rain can cause water levels to rise by six metres. The Hydro-Brakes were central to an attenuation solution using three flood storage areas in the uplands to hold back water during peak storm events.

A total of 2.59bn litres of flood water can be held back by

• 45% maximum reduction in peak flows

• 1 in 200 years’ flood protection capability

HX Performance - UK Wastewater

HX Performance - UK Wastewater

Thames Water Invests in Hydro’s Sludge Handling Technology

Thames Water is investing in innovative Zickert sludgehandling technology from Hydro in contracts totalling £24mat its major sewage works in London, England.

Hydro’s Zickert continuous bottom scraping and surfacescum removal technology will collect sludge from a total of53 primary settlement tanks at Beckton, Crossness andMogden sewage works.

In the largest project underway at Beckton STW, thecompleted installation will cover more than 56,000 squaremetres – equivalent to more than 11 football pitches.

Thames Water is making the investment based on theproven performance of existing installations.

• Increased sewage treatment capacity• Improved operating efficiency• Reduced odour• Lower operating and infrastructure costs• Higher throughput reducing secondary

treatment requirements• More primary sludge produced with a higher calorific

value for incineration

In the largest project underway at Beckton STW, thecompleted installation will cover more than 56,000 squaremetres – equivalent to more than 11 football pitches.

Thames Water is making the investment based on theproven performance of existing installations.

• Increased sewage treatment capacity

• Lower operating and infrastructure costsHigher throughput reducing secondary

More primary sludge produced with a higher calorific

HX Performance - US Stormwater

HX Performance - US Stormwater

Reg-U-Flo® saves Chevy Chase Bank over $150,000, Maryland, USA

The development site of a new Chevy Chase Bank branch, had to meet the strict Montgomery County stormwater requirements. The Reg-U-Flo® Vortex Valve proved to be an effective method of stormwater control, allowing for a storage system with a smaller footprint than a traditional orifice plate flow control solution.

• High density urban site needed onsite treatment and underground stormwater storage

• Two flow control methods designed to meet the drain down volume of the Water Quality Volume were evaluated

• The smallest allowable conventional outlet control – a 2” orifice – would over-discharge during intense storms resulting in the need to increase the required storage volume by 42%

• Reg-U-Flo® Vortex Valve eliminated 100% of the excess storage volume and reduced cost of storage system by over $150,000

system with a smaller footprint than a traditional orifice plate

High density urban site needed onsite treatment and underground stormwater storageTwo flow control methods designed to meet the drain down volume of the Water Quality Volume were evaluatedThe smallest allowable conventional outlet control – a 2” orifice – would over-discharge during intense storms resulting in the need to increase the required storage

Vortex Valve eliminated 100% of the excess storage volume and reduced cost of storage system by

HX Performance - US Wastewater

HX Performance - US Wastewater

Fox Lake, Illinois, USA – Eutek HeadCell® Retrofit to Increase Performance

• Fox Lake Illinois had an aerated grit basin that was nearing the end of its usable product life. The existing grit removal system was only capturing 10% of the grit entering the plant. The plant needed to retrofit a new system into the existing grit basin while increasing grit removal performance. The stacked tray design of the Eutek HeadCell system proved to be the ideal retrofit solution.

• Highly efficient over a wide range of flows• Large surface area in a small footprint • Using existing concrete / structures reduced overall

project costs• New system provided significant performance improvements

Fox Lake Illinois had an aerated grit basin that was nearing the end of its usable product life. The existing grit removal system was only capturing 10% of the grit entering the plant. The plant needed to retrofit a new system into the existing grit basin while increasing grit removal performance. The stacked tray design of the Eutek HeadCell system proved

• Highly efficient over a wide range of flows• Large surface area in a small footprint

Using existing concrete / structures reduced overall

• New system provided significant performance improvements

HX Performance - US Wet Weather

HX Performance - US Wet Weather

Saco, Maine, USA – The Storm King® Solution

Combined Sewer Overflows were allowing untreated sewage to drain into the Saco River during intense storm events. The city had already converted seven of its eight CSO outfall sites into separate wastewater and stormwater treatment systems, but the remaining CSO site was located in a downtown location which would have significantly increased the land acquisition costs. The solution was a 22’ diameter Storm King unit to provide the sedimentation, screening, and disinfection treatment needed.

• Smaller, more economical, and more efficient than conventional clarifier tanks

• Storm King provides primary treatment equivalency in a low maintenance device

• During an intense storm event, system performance was measured at 83% BOD removal and 72% TSS removal

• Reg-U-Flo® vortex valves control flow volumes entering the Storm King®

but the remaining CSO site was located in a downtown location which would have significantly increased the land acquisition costs. The solution was a 22’ diameter Storm King unit to provide the sedimentation, screening, and disinfection

Smaller, more economical, and more efficient than

Storm King provides primary treatment equivalency in a low

During an intense storm event, system performance was measured at 83% BOD removal and 72% TSS removal

vortex valves control flow volumes entering the

HX Performance - International

HX Performance - International

A groundbreaking €175m sanitation project in the ancient Belgian city of Namur

An ambitious €175m project to modernise wastewater treatment in the Belgian city of Namur is helping to achieve vital North European water quality targets.

Distributed at-source stormwater treatment was integral to the project with the installation of 33 Storm King® advanced hydrodynamic separators across the city.

The frequent risk of overflow of pumping stations after rainfall could cause unwanted wastewater discharges into the river system via Combined Sewer Outfalls (CSOs). The Storm Kings® control onward flows and prevent overloading of the downstream network, whilst providing pre-treatment of sediments, grits and floatables.

• The project was part of a milestone wastewater treatment solution for the city’s 125,000 inhabitants

• Previously a complex sewage and stormwater network which had developed during two centuries was discharging overflow wastewater through nearly 50 separate outfalls directly into the rivers

• Supports the requirements of the European Water Framework Directive

could cause unwanted wastewater discharges into the river system via Combined Sewer Outfalls (CSOs). The Storm

control onward flows and prevent overloading of the downstream network, whilst providing pre-treatment of

The project was part of a milestone wastewater treatment solution for the city’s 125,000 inhabitantsPreviously a complex sewage and stormwater network which had developed during two centuries was discharging overflow wastewater through nearly 50 separate outfalls

Supports the requirements of the European Water

Find out more, visit:www.hydro-international.biz

How can HX inspire you?