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New media product from FLI Water provides temporary treatment or long-term solutions

Posted: Thursday 5th January 2017

FLI Water has introduced a new multi-zone structured media product, FSAF. The product has been designed to provide short-term temporary biological treatment or offer a long-term, permanent solution at wastewater treatments works (WwTW).

The FSAF plant is a natural development of FLI Water's multifunctional HSAF product and has been designed to build upon its success. The new FSAF plant is suited to both removal of BOD and ammonia and is compliant with the water company's asset standards. It has been developed as both a permanent long-term solution and also as a temporary treatment.

This user-friendly treatment provides high quality effluent within a small footprint and with no sludge build-up, it also uses less power than traditional methods due to the high efficiency of the process air system, which ensures a low air and power requirement. One scheme where it has been successfully introduced is at Thames Water's White Waltham Wastewater Treatment Works (WwTW). The project was to provide additional biological treatment to enable White Waltham to meet its works consent.

Thames Water identified that it needed to augment the existing plant at White Waltham WwTW while the refurbishment of the trickling filter beds was undertaken. Due to its efficiency in cost and reliability FLI Water's FSAF plant was selected as a front end roughing treatment to shed load off the trickling filters. Although initially the investment was for a temporary solution, Thames Water was impressed with the plant's performance and decided to purchase it as a long-term solution.

The success of this contract means that Thames Water is now considering the installation of FSAF units at other sites across the region. Business Development Director, Duncan Wildgoose commented: "We are very pleased with the outcome at White Waltham. FSAF provides efficient removal of BOD and ammonia upon any surface area, which makes it an ideal long term solution for Thames Water. Now we have had the opportunity to demonstrate its enormous capabilities, I look forward to seeing its installation in similar situations in the future."

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