We are one of the largest German companies in the field of water supply and infrastructure. Our core focus lies in providing and expanding water and wastewater solutions, energy services, as well as digital and industrial infrastructure – complemented by activities in the circular economy. With over 1,842 employees, we operate in more than 70 municipalities. In addition, we cooperate with around 30 utility companies that receive drinking water, natural gas, and electricity from us.
Recovery of phosphorus from sewage sludge ash
With the world’s first industrial Ash2Phos plant, we are setting new standards together with our Swedish partners. This innovative chemical process chain enables the recovery of over 90% of the phosphorus from sewage sludge ash – in a high-purity, pollutant-free and marketable form.
In addition, iron and aluminium compounds as well as sand are efficiently recovered. The process stands for clean separation of valuable materials and marks an important step towards a true circular economy.
Recovery of phosphorus from sewage sludge ash
We are one of the largest German companies in the field of water supply and infrastructure. Our core focus lies in providing and expanding water and wastewater solutions, energy services, as well as digital and industrial infrastructure – complemented by activities in the circular economy. With over 1,842 employees, we operate in more than 70 municipalities. In addition, we cooperate with around 30 utility companies that receive drinking water, natural gas, and electricity from us.
Foto: GELSENWASSER AG
Recovery of phosphorus from sewage sludge ash
We are one of the largest German companies in the field of water supply and infrastructure. Our core focus lies in providing and expanding water and wastewater solutions, energy services, as well as digital and industrial infrastructure – complemented by activities in the circular economy. With over 1,842 employees, we operate in more than 70 municipalities. In addition, we cooperate with around 30 utility companies that receive drinking water, natural gas, and electricity from us.
Foto: GELSENWASSER AG
Recovery of phosphorus from sewage sludge ash
We are one of the largest German companies in the field of water supply and infrastructure. Our core focus lies in providing and expanding water and wastewater solutions, energy services, as well as digital and industrial infrastructure – complemented by activities in the circular economy. With over 1,842 employees, we operate in more than 70 municipalities. In addition, we cooperate with around 30 utility companies that receive drinking water, natural gas, and electricity from us.
Foto: GELSENWASSER AG
Ash2Phos is an innovative environmental technology that sets new standards in the recovery of critical raw materials. In Schkopau (Saxony-Anhalt), the world’s first industrial-scale plant for phosphorus recovery from sewage sludge ash is currently under construction – a joint project by GELSENWASSER AG and Swedish environmental technology company EasyMining.
The chemical process chain enables the recovery of over 90% of the phosphorus contained in the ash – in a high-purity, pollutant-free and marketable form. In addition, iron and aluminium compounds as well as sand are efficiently separated and returned to the material cycle. This process represents a clean and economically viable approach to circular economy and already meets the legal requirements for phosphorus recovery that will apply across Germany from 2029.