Hydrolox S1800 Screens Safeguard Aquatic Life While Reducing Equipment Downtime

Case Study

Northumbrian Water

Location

Chester-Le-Street, River Wear UK

Industry

Municipal/Desalination Water

Solution

Fish Exclusion

Hydrolox screen and equipment on water

Customer Objectives

Northumbrian Water needed a new screen solution to meet the 2009 EEL Regulations at its River Wear intake at Chester-Le-Street, where 57 million liters of water are abstracted each day. The water company needed a low-approach velocity solution that would preserve eel stocks in adherence with a local regulation which requires that all such water intake structures adequately protect eel life at their abstraction points. Further, Northumbrian Water sought to reduce the heavy operator input and cleaning requirements of its existing inline bowl filters, which were causing excessive and costly downtime. In fact, during the region’s six-month storm season (October through March), the filters required weekly manual cleaning by two to three people, often outside of normal working hours.

The screens will improve resilience of the water supply to Lumley WTW and the improvement on strainter cleaning has taken a huge operational challenge for us!

Peter Bell
Northumbrian Water Operations

Hydrolox Execution

The Hydrolox engineering, design, and project teams partnered with Northumbrian Water and its framework partner, Mott MacDonald Bentley, to implement four Hydrolox Series 1800 Mesh Top screens with debris flights. Made from lightweight, UV-resistant, and corrosion-free materials, the S1800 screens prevent fish entrainment, improve debris removal, optimize water filtration, reduce maintenance costs with a self-cleaning mechanism, and virtually eliminate downtime. Northumbrian Water selected these screens for their ability to meet both current and anticipated regulations for the protection of eels and other fish species, ensuring ongoing compliance in an ever-changing environmental landscape

Results

The Hydrolox engineering, design, and project teams partnered with Northumbrian Water and its framework partner, Mott MacDonald Bentley, to implement four Hydrolox Series 1800 Mesh Top screens with debris flights. Made from lightweight, UV-resistant, and corrosion-free materials, the S1800 screens prevent fish entrainment, improve debris removal, optimize water filtration, reduce maintenance costs with a self-cleaning mechanism, and virtually eliminate downtime. Northumbrian Water selected these screens for their ability to meet both current and anticipated regulations for the protection of eels and other fish species, ensuring ongoing compliance in an ever-changing environmental landscape.

The new screens will greatly reduce the number of fish and eels entrained at the pumping station, and will remove a significant hazard to migratory species, particularly sea trout, eels, and salmon. These benefits will be felt along the entire 100-km length of the river, from source to sea.

WaterProjectsOnline.com
72-180cleaning personnel time saved over 6 months
Northumbrian Water: Living Water