Several hamlet on the territory of the municipalities of Burgdorf and Kirchberg had no link-up to the central sewer system. To improve this unsatisfactory situation, the intention was to collect the residential wastewater from the different hamlets in pump wells and then dispose of it into the public sewer systems. On the basis of the available connections, totally six smaller pumping stations and one main pumping station were needed.
City of Winterthur (CH), Wastewater storage basin Dättnau
The sewerage network of the city of Winterthur consists of over 600 km of private and public sewerage. It collects wastewater from Winterthur and 11 surrounding municipalities and directs it to the ARA Hard. During heavy rainfall, the sewerage system below the Dättnau stormwaterbasin was overloaded even though the Dättnau stormwater basin above was almost never filled.
Operating cost divider according to stationarily measured external water quantities.
An association of twelve municipalities in Wallis was looking for a just cost allocation solution to account for the high foreign water content in the waste water entering the treatment plant. The measuring system installed now records the different outflows and thereby rewards those municipalities that already have installed a separation system.
Computer, control and process control technology as a carefree package.
Viteos SA is a major water and power supplier inthe canton of Neuchâtel, who also operates ownhydropower plants. The short course of the Serrière River in Neuchâtel, which receives waterfrom an extensive karstic catchment area, hasbeen generating electricity since 1939. The plantwas modernized in 1978 and rebuilt completelyin 2016. Part of the project was the moderniza-tion and simplification of the old screen systemwhich Viteos SA requested STEBATEC to do.The order also included level measurements forcontrolling the screen cleaning machine and monitoring the plant, an alarm system and aweb-based control of the main gate in the turbine inflow.
For 15 years, VKA and STEBATEC, the German Association for Sewerage and Wastewater Treatment, have been working together successfully. The latest milestone is the introduction of ARAbella ONLINE: With the web-based process control system, processes can be controlled online via remote access. A management of the waste water quantities becomes possible.
The Zermatt sewage treatment plant, which was built underground in rock caverns, was completely rehabilitated, almost doubling its biological treatment capacity. From the mandate of electrical planning and execution, a close cooperation developed, which today covers the entire measurement and control technology.
Association of the Schwarze Pumpe Industry Park, D-Spremberg
As municipal company of the association of the Industry Park Schwarze Pumpe, the city of Spremberg and the municipality of Spreetal, the ASG Spremberg GmbH is the service provider to one of the largest industry parks in the south of Brandenburg state with many large and medium size companies that provide over 4,300 jobs.
The City of Grenchen is currently renewing itsfour stormwater basins constructed in differentyears. The first such basin to be refurbished isthe second-oldest and the biggest of the four basins built in 1975 ad named after the publicswimming pool nearby. The basin had a numberof structural defects but most pressing were therectification of issues of operating the basin andproblems of work safety.
Electromechanical equipment for the Ipsach rainwater basin
The Association for Sewers and Waste Water (VKA) in Nidau is responsible for the waste water treatment plants from Port to Moeringen on the southern banks of Lake Bielersee. The Association manages several rainwater basins and pumping station. The Ipsach rainwater basin was built in the early 1990s. The unique feature is that this is a rainwater basin in a connected system.
When ready, the Gotthard base tunnel will be the world’s longest railway tunnel. After a successful initial installation phase in 2006, additional installations for measuring the flows of water from the construction site and the entering well water are required in the section from Faido towards Sedrun in 2009.In the Faido – Sedrun section, the water flows in the drai-nage ducts after the Piora syncline and in the Borel zone are to be measured, the measuring data transferred to the tunnel portal by a suitable data transmission system and processed automatically by customized computer software so that the measuring results can be submitted to the supervisory authorities and the geologists as fully analyzed data sets.
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