Spray Nozzle People

Suppliers of spray systems and solutions, including the StormBlaster™ stormwater attenuation tank cleaning system, the ScreenBlaster CSO screen cleaning head and specialised spray solutions for odour control, foam suppression and other water and wastewater applications.

There are many applications for spray nozzles and systems within the water and wastewater treatment sector. SNP have worked on projects for most of the main water suppliers in the UK & Ireland as well as with many in Europe and beyond.

We have listed some key applications for spray nozzles below. For a full list of applications and for further details on key applications, follow the menu to the right.

Cleaning systems

The United Kingdom’s water industry is poised for its most ambitious transformation yet under the AMP8 (Asset Management Period 8) investment cycle, which runs from 2025 to 2030.

Backed by an unprecedented £108 billion investment, the largest in the sector’s history, AMP8 is focused not only on maintaining and upgrading ageing infrastructure but also on addressing growing environmental and regulatory challenges.

A significant £11 billion of this total has been earmarked specifically for stormwater and sewage spill mitigation, reflecting mounting pressure from regulators, the public, and environmental groups to curb pollution in rivers, lakes, and coastal waters.

At the heart of this environmental push lies the urgent need for more stormwater retention tanks and combined sewage overflow (CSO) systems. It is estimated that some 2,000 such systems will need to be updated, refurbished or built in the AMP round of funding. This stormwater management infrastructure is vital if the target of reducing spills and sewage discharges into waterways by 44% is to be met. Much of this new infrastructure will require specialised cleaning systems.

Storm water attenuation tanks can cause serious smell pollution if left improperly cleaned after usage. The StormBlaster tank cleaning system is a more effective alternative to tipping buckets, swirl eductors and manual entry cleaning.

Screen cleaning

Combined Sewer Overflows (CSOs) are a key feature of combined sewer systems, where rainwater and wastewater share the same pipework. During heavy rainfall, these systems can become overwhelmed without proper control measures.

CSO chambers manage excess flows by allowing water levels to rise and diverting surplus into overflow pipes. A crucial component of CSOs is the screening system, which traps solids and keeps them within the sewer network. This prevents solid waste from entering local waterways and protects the environment.

Foam control

The formation of a stable foam in the water treatment process is a common problem. Foam can occur in aeration tanks, anaerobic digesters or secondary clarifiers.

Foam is undesirable because it can overflow vessels, create slippery and unsafe working conditions, interfere with processing, damage materials, and cause tanks to drain and dry slowly. Controlling foam can be accomplished by spraying liquid onto the pool, vessel, or reservoir’s surface and allowing the spray’s droplets to impact the foam bubbles, causing them to break.

Spray nozzle arrays positioned above fluid level can be used to knock back the foam and keep it under control.

Odour control

The use of sprays to knock down and neutralise odour is a common application for our spray nozzles. Nozzles are either used to directly treat odour particles in the air or as part of scrubber systems.