The Yorkshire Water contracts delivery partner Byzac Entec commissioned WPL after a formal tendering process against the Yorkshire Water asset standard and taking into account whole life costs.
WPL were challenged with the task to design and manufacture the largest bespoke modular steel wastewater process solution (N-SAF) the company have ever supplied. The unit had to handle 50 l/sec FFT, almost twice the average, so something out of the ordinary was devised. WPL’s design engineers came up with eight modular tanks manufactured from steel, as per specification, which were assembled off-site in the factory.
To provide ultra-efficient and cost-effective tertiary treatment, WPL selected Warden’s Biomarble 310. Biomarble 310 is made from recycled polypropylene with internal fins and large openings, offering a surface area of 310m²/m³ and high voidage of 90%.
Andrew Haywood, Sales Manager at WPL said:
“We are very pleased with the business relationship we share with Warden. Their Biomedia range has been a great asset in the design process of our wastewater treatment plants and has always met expectations for efficiency and performance”.
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Biomarble 310


