Modular Moving Bed Filter technology is coming to the UK through an exclusive partnership deal. As phosphorus discharge consents tighten and AMP8 nutrient removal investment accelerates, here is what you need to know.
Hydro International, the Clevedon, Somerset-based water and wastewater treatment specialist, has announced an exclusive UK partnership with Brightwork BV, a Dutch company that makes modular tertiary treatment systems. The agreement gives Hydro International the right to supply and support Brightwork's Moving Bed Filter technology in the UK market — arriving at exactly the moment UK water companies need it most.
This is not a research project or a pilot programme. It is a commercial supply arrangement, and it reflects a growing urgency in the UK wastewater sector around one of AMP8's most capital-intensive challenges: phosphorus.
Phosphorus removal has become one of the defining technical challenges of AMP8. The Environment Agency requires tertiary treatment to be applied at wastewater treatment works serving a population equivalent of over 10,000 in sensitive catchment areas where discharge contributes significantly to the nutrient load of receiving water bodies. This covers a large portion of England's medium-sized STWs — and many of them are currently operating without compliant tertiary treatment.
The scale of the investment requirement is significant. United Utilities, Thames Water, Anglian Water, Southern Water and others all have major phosphorus removal programmes running through AMP8. The challenge for the supply chain is not just delivering the treatment capacity — it is doing so at pace, within tight site constraints, and at a cost that fits inside Ofwat-allowed expenditure.
This is precisely the market gap that the Hydro International / Brightwork partnership is designed to address.
The Moving Bed Filter is a continuous biofiltration system. Unlike conventional tertiary filters that require periodic backwashing cycles and process interruption, the MBF operates continuously — sand media is cleaned in a loop, separated from captured solids, and returned to service without stopping the process. This gives it a significant operational advantage over older tertiary treatment technologies.
The system targets all three of the key tertiary pollutants:
Both the tanks and filter units are standardised and manufactured off-site, then installed as a modular package. For contractors working in tight STW footprints with limited civils working space — a common constraint at the medium-sized works most affected by phosphorus consents — this significantly reduces the civil engineering scope and shortens programme. Consultants can also select additional filter modules to meet more stringent discharge permit requirements without redesigning the whole system.
The practical commercial implications of this partnership are different depending on where you sit in the supply chain.
The partnership adds a credible new option to the UK tertiary treatment market at a time when programme pressure on phosphorus works is acute. The combination of proven Dutch technology, UK supply chain support and modular manufacture addresses the three most common barriers to phosphorus consent compliance: programme, footprint and cost. Worth evaluating against existing preferred supplier arrangements and through your AMP8 framework delivery partners.
Hydro International is a long-established UK wastewater technology company, headquartered in Clevedon, Somerset. It is best known for its vortex separation, grit removal and stormwater treatment products, with equipment installed at water company sites across the UK and internationally. The addition of Brightwork's tertiary filtration technology significantly extends its product range into the biological and chemical tertiary treatment market.
Brightwork BV is a Dutch specialist that has built a strong reputation in the European market for nutrient removal and tertiary treatment technology. The Moving Bed Filter is its flagship product. Entering the UK through an exclusive partnership with an established UK supplier, rather than directly, is a considered market entry strategy that gives Brightwork immediate access to Hydro International's existing customer relationships and technical support infrastructure.
This partnership is one signal of a broader trend: European water technology specialists are increasingly looking to the UK as an attractive market, driven by AMP8's scale and the regulatory pressure on phosphorus and nutrient removal. Other examples include Netherlands-based Nijhuis Industries, which has UK operations, and the wider cluster of Dutch, German and Danish technology companies active in UK water sector tenders.
For UK-based suppliers and contractors, the practical question is how to position your business to work with — rather than compete against — these inbound technology partnerships. Hydro International's model (exclusive UK supply and support rights, local technical teams, established framework relationships) is likely to be replicated by others in the next twelve to eighteen months as AMP8 nutrient removal programmes accelerate.
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