Articles & Case Studies

Siltbuster Process Solutions secures framework with Dwr-Cymru Welsh Water

Posted: Tuesday 6th August 2013

Siltbuster Process Solutions (SPS) has been appointed on a two-year region-wide framework with Dwr-Cymru Welsh Water, to provide a range of wastewater treatment equipment. The agreement will help the water company, which is the sixth largest in England and Wales, maintain effluent quality when its works are being refurbished, and bolster treatment capacity at peak times.

Welsh Water, which supplies water and sewerage services to over three million people, has a significant maintenance and upgrade programme planned for 2013/14. SPS’ unique fleet of mobile treatment units, comprised of dissolved air flotation plants (DAFs) and lamella clarifiers, will play an important role in this programme by enabling Welsh Water to complete maintenance on its single stream works whilst continuing to meet its consent.

This is a major breakthrough, especially with regard to essential maintenance of final settlement tanks on activated sludge plants, where diverting flow from the site can be difficult, requiring expensive offsite tankering. The alternative made possible by SPS is for mixed liquors from the activated sludge plant to be diverted to a DAF for solids liquid separation. The treated water is then discharged whilst the removed solids are returned to the activated sludge plant. This leaves the water company free to take its final settlement tanks off-line for maintenance or upgrade.

Siltbuster Process Solutions’ team has over 100 years of combined experience in the water industry, and the company has provided solutions to Scottish Water and most water companies serving England and Wales.

Nia Derec, Welsh Water Local Asset Management Solutions Manager says: “To have that level of knowledge and process solution expertise in a single contact point, at the end of the phone, makes a tremendous difference”.

“We also really value the agility of the SPS system and the fact they have a large fleet which we can draw on as and when we need it”

Welsh Water operates 81 reservoirs, 105 water treatment works and supplies an average 900 million litres of water every day. Prior to making the appointment, Welsh Water had already prioritised a number of sites for refurbishment in 2013. During this time, the SPS team completed a process review of each, to identify their site specific characteristics and the best solution for each application without impeding the main refurbishment works. This included some sampling, with analysis carried out at SPS’s base in Monmouth, followed up by a physical inspection of the sites in question to determine any constraints and enable the equipment to be located for ease of access and maintenance. This meant that immediately on appointment, SPS could respond, getting the appropriate plant onto site within programme constraints set by the client, ensuring there was no delay to the capital programme.

According Paul Lewis, Managing Director at Siltbuster Process Solutions, the contract with Dwr-Cymru Welsh Water is part of a wider trend: “We are seeing more and more requests from the water companies for our services as the challenge upon capital project expenditure becomes ever more apparent in the current economic climate. The SPS team are technically strong and able to not only provide single process units but more commonly, complete solutions that reduce the client’s risk and create breathing space enabling the water companies to meet the regulatory demands whilst at the same time, allowing more time to value engineer and reduce CAPEX costs.

“As we move into AMP6 where the emphasis generally more focused on the capital maintenance of existing assets, SPS can offer a real environmental, cost effective and sustainable alternative as opposed to the high cost and man-power intensive options to tanker off-site or over-pumping’.




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December 2018

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