Sweco’s water specialists are world leaders, meeting increasing demands for drinking water, waste recycling and flood mitigation, through sustainable creative solutions. Our water specialists are outperforming our client’s business plan budgets and tackling embedded/operational carbon footprint targets with the use of innovative and lowest whole of life cost focused solutions. Our commitment is future focused, finding solutions for the future’s challenges, today.


  • Asset Management Period (AMP7) Frameworks
  • Flood Risk Management
  • Process Technologies
  • Sludge Treatment
  • Wastewater Non-Infrastructure
  • Wastewater Infrastructure
  • Water Non-Infrastructure
  • Water Resources
  • Water Infrastructure

Process Technologies

Sweco‘s forward thinking engineers excel at delivering exciting and innovative water treatment works solutions that meet the complex challenges of the future, today.

We have a proven track record in providing innovative pan European wide sourced technologies that successfully reduce operational costs and lower carbon footprint solutions for our clients. Technologies that we hold the European Licence for include:

SHARON® (Single reactor system for High activity Ammonium Removal Over Nitrite) is a sewage treatment process used for the removal of ammonia and organic nitrogen components from wastewater flow streams. The process results in stable nitrite formation, rather than complete oxidation to nitrate.

DEMON® is a continuous or SBR de-ammonification process that partly converts ammonia to nitrate and then converts the remaining ammonia and nitrate into nitrogen gas. The process uses only 40% of energy compared to conventional biological treatment systems and does not require an external carbon source.

EssDE® - Energy Self Sufficient DE-ammonification is a process that utilises DEMON® surplus sludge in Activated Sludge Plants to significantly reduce O2 demand.

InDENSE® that can be integrated into any existing plant, increases process throughput and performance through the selection of dense sludge aggregates with improved settling rates and the promotion of enhanced biological phosphorus removal.

BIOCOS® is a compact footprint, low energy activated sludge process that is operated at a constant water level during the whole process cycle, and therefore represents a hybrid technology (Biological Combined System) comprising features of continuous flow and SBR systems.

Triple A Technology® is a novel A-stage biological wastewater treatment technology that consists of two alternating reactors that switch between feeding, aeration and settling regimes. The technology allows for stable operation and results in no wash out of A-stage sludge and Homogeneous fluidization.