Scottish Water To Construct Bonnycraig Water Treatment Works Using Proven PWNT Innovations

Plant producing 4 MLD utilises PWNT’s ILCA® and CeraMac® technologies

The Netherlands, 4 August 2021 – Scottish Water (SW) has selected PWNT’s CeraMac® filtration and Inline Coagulation and Adsorption (ILCA®) technologies for the construction of its new-build water treatment plant at Peebles, Scotland. The new plant, shall replace an existing installation dating from 1970 and is expected to become operational in December 2022.

The decision to use PWNT’s technologies at Bonnycraig was made after a series of successful pilots in Invercannie (2017), Turriff (2018), and Marchbank/Bonnycraig (2019/20) in line with two key principles: a plant that would be sustainable, and the minimisation of landscape impact.

Consisting of four C-19 CeraMac® vessels and four ILCA® 270 vessels, the plant using feedwater from Megget Reservoir is expected to produce 4 MLD, and shall be constructed relying on the Transportable Treatment Units developed by Ross Shire Engineering (RSE). RSE’s modular units, complete with PWNT equipment, will be fabricated and assembled in RSE’s Muir of Ord workshops, prior to being transferred to site at Bonnycraig WTW, Peebles. Transporting the completed unit direct to site will overall reduce the MEICA and civil construction impact on the local community and wider environment.

Says Stewart Sutherland, Membrane Treatment Specialist at Scottish Water : “Having tested multiple systems based on key parameters including long-term reliability, we’re pleased to have chosen PWNT’s technologies given their successful implementation in other municipal plants worldwide. Using technology that can ensure the reliable flow of clean drinking water in an effective, robust and sustainable way is certainly beneficial to our constituents.”

Adds Allan Dallas, Managing Director, RSE, “ RSE has worked collaboratively with PWNT over the past two years to design a Transportable Treatment Unit (TTU) with integrated CeraMac® filtration and In-line Coagulation and Adsorption (ILCA®) technologies. Incorporating PWNT’s standard offering into RSE’s modular TTU system has facilitated a fully off-site fabricated and tested unit, devised for Scottish Water. We look forward to delivering the next phase of the project in conjunction with PWNT and providing Peebles with a high quality and reliable water supply for years to come.“

Concludes Clement Pierart, COO, PWNT, “PWNT’s technology has already been successfully implemented in water treatment plants worldwide, with the largest plant to date producing 180 MLD commissioned in August 2019 in Singapore. We are pleased that our technology is being applied in Scotland’s latest water treatment plant. The ceramic membranes used in CeraMac®, produced by our Japanese partners METAWATER, have been proven to last more than 20 years without breakage and may be disposed of without toxicity; in an era of increased sustainability concerns, we are confident of the benefits our technology brings to both end-users and the environment.”

Media Contacts
For SW: Keith Sinclair, Media Manager |
For RSE: Daniel Sutherland, Senior Project Manager |
For PWNT: Daniel Chua, Marketing & Communications Director |