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.
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.
From electrical planning to installation and commissioning.
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.
During the production of marinades for meat and herb mixtures, the Pacovis company in Sassenberg (D) produces wastewater with a high concentration of COD (chemical oxygen demand). In order to relieve the local wastewater treatment plant, an SBR (Sequence Batch Reactor) treatment plant was installed, which pre-treats the waste water and reduces the COD concentration to below 800 mg/l before it is discharged into the public sewage system.
WVS Wasserverbund Seeland AG, ground water catchments and water tower Gimmiz
Last year, STEBATEC was allowed to replace the existing process control system and the control software of the water supply system and implement extensive process optimizations. Energie Service Biel/Bienne, Ener-gie Seeland AG and the Seeland Water Supply Association are partners of the Wasserverbund Seeland, which supplies drinking water to around 30 communities and 100,000 people in the Bernese Seeland.
PLC controls, ARAbella process control system, STEBalarm, Pneumatic discharge control TFPNA
The catchment area extends from Brienz to Axalp via Schwanden and Hofstetten. STEBATEC has already carried out the electrical planning mandate and will now also implement the control and instrumentation technology, as well as the STEBATEC IT and network concept. Two TFPNA pneumatic flow controllers will be used for water distribution on two roads and for precise flow measurement.
The Meiringen waste water treatment plant tre-ats the waste water of the municipalities of Mei-ringen, Hasliberg and Schattenhalb and – nitrogen reduction included – is designed for about 13,000 population equivalent. The old process control system had become outdated and the frequency of failures increased.
STEBalarm; software for call-out planning and alarm processing.
The AEK Energie AG is the leading energy supply company in the Jurasüdfuss region. The company, founded in 1894, manages a large range of different facilities that has been growing in the course of time and, among others, operates about 40 central heating plants at present. The gradual growth also reflects in the alarm sys-tems – several different independent solutions existed.
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