About the Alpnach Nereda WWTP
Nereda technology was selected for the extension of the Alpnach Wastewater Treatment Plant in Switzerland. The innovative aerobic granular biomass technology provides an optimal and cost-effective solution to treat the wastewater as an alternative to conventional systems. The Nereda installation in Alpnach is the first Nereda in Switzerland.
The challenge
Alpnach Wastewater Treatment Plant in Switzerland was looking for a solution to expand its current treatment plant.
The solution
Nereda technology was selected for the extension of the Alpnach Wastewater Treatment Plant in Switzerland. The innovative aerobic granular biomass technology provides an optimal and cost-effective solution to treat the wastewater as an alternative to conventional systems.
The Nereda installation in Alpnach is the first Nereda in Switzerland. The extension of the Alpnach WWTP was tendered based on conventional SBR technology but WABAG Water Technology Switzerland – who signed a 10 year Cooperation Agreement with Royal HaskoningDHV in November 2014 to deliver Nereda to Switzerland – also evaluated the possibilities and advantages of the Nereda technology.
The outcome
After start-up in 2017 Alpnach WWTP is treating a municipal and industrial effluent load of 49,000 p.e. (or 65,000 p.e. in accordance with Swiss calculations), with a daily average flow of 14,000 m3/day and a peak flow of 1,872 m3/hour. The Nereda installation is based on a configuration of one buffer tank and three Nereda reactors.
