"All you need is air"-sewage treatment plant Schladming
Challenge
The Schladming region is heavily influenced by tourism and sees a significant increase in visitor numbers every year. This results in strong seasonal fluctuations in the wastewater load at the local sewage treatment plant, which poses major challenges. This situation has prompted the operator to exhaust all technological possibilities to increase the plant's capacity.
Wagner Consult was commissioned to develop a concept specially tailored to the Schladming wastewater treatment plant, which uses the latest wastewater technology to better manage the strong fluctuations in wastewater load.
Solution
Wagner Consult was one of the first plants in Austria to implement the BIOCOS® process at the Schladming wastewater treatment plant back in 2011 for the Ski World Championships.
The BIOCOS® process is a cyclical activated sludge process that consists of a system of several specially arranged basins and combines the biological degradation of pollutants and the separation of the sludge from the purified clear water in one basin block. Compared to conventional systems, this innovative method does not use pumps, mixers or scrapers. The entire process (aeration, mixing, sludge transport) is operated via a common compressed air system. This makes the system simpler, cheaper to build, more energy-efficient to operate and requires less maintenance.
In addition to the BIOCOS® process, the main biology of the wastewater treatment plant has been improved with the patented inDENSE technology, which compacts the sludge and stabilizes the floc structure. The improved sludge properties lead to a 30% increase in the treatment capacity of the plant without the need to build additional tanks.
Community of Schladming
Sewage treatment plant
Key Facts
- „All you need in air” – Low mechanical equipment leads to less wear, energy consumption and maintenance.
- Reduced expenses for future reinvestments.
- By using inDense, the capacity could be increased by +30% without the construction of additional pool volume.
- A wood and steel construction was used for the partition walls instead of concrete, which leads to an improved CO2 balance.
- Increased biological P elimination and thus a reduction in precipitant consumption.
- Higher dewatering performance and lower disposal costs thanks to improved sludge properties.