Project & Requirements

Yorkshire Water is making a significant investment at its Killinghall Wastewater Treatment Works near Harrogate to improve water quality in the River Nidd by reducing phosphorus levels in treated wastewater.

The scheme includes the construction of an aerated rush bed – the first of its kind at a Yorkshire Water site – which uses specially grown rushes to naturally remove phosphorus during storm conditions.

As part of the wider project, the contractor was tasked with constructing a Primary Settlement Tank (PST) to support the new treatment process.

The Solution

To form the perimeter walling of the PST, the contractor selected Sealwall 1050mm x 3300mm precast concrete panels from Naylor Concrete.

A robust precast solution, Sealwall panels were supplied with inlet holes, hydrophilic seals, and reinforcing bars to suit the site-specific requirements. Naylor’s technical team also provided design advice to accommodate features such as pipe entries, an internal launder channel, and provision for a potential external walkway.

Sealwall was chosen because:

• Butt-fit male/female joints – no in-situ jointing required

• Fast, simplified installation process

• Short lead times and responsive delivery

• Expert design support from the Naylor team

The Outcome

Sealwall panels provided a cost-effective, durable and installation-friendly solution for the PST construction – helping the contractor meet project deadlines while overcoming several technical challenges on site.

Why Use Sealwall Panels

• Robust precast concrete solution

• High durability and low maintenance

• Fast, straightforward installation

• Backed by full technical design service from Naylor Concrete