The wish for accurate control is fulfilled!
The initial situation
The Rietwiesen Wastewater Treatment Plant was planning to construct a new basin block for two biological and secondary treatment lines. However, the originally preferred gate valves, which had been used previously, were not capable of accurately controlling the oxygen content. A new solution was needed to remedy the situation. The plant operator also intends to avoid making a bad investment, instead making one that pays off while optimising energy consumption in the long term.
Project requirements
- Accurate control of oxygen content in biological treatment basins
- Cost savings thanks to optimal air consumption
- Electric motor drive
- Temperature- and climate-resistant for use outdoors
Bachofen’s solution
Bachofen’s specialists have hit the nail on the head with the sliding gate valve 8038 from Schubert & Salzer. The valve performs well in the four biological treatment basins, with an accurate control of oxygen content, an electric motor drive and its compact, space-saving intermediate flange. The ten valves were installed in two stages – additional valves are planned for a future project. In spite of the continuous flow and being used in all weathers, the smart sealing disc construction is practically maintenance-free and is easy to service. Thanks to low energy consumption, the lightweight valve is ecological and cost-effective. A real win – and definitely not a bad investment!