The IWR in research and teaching

A scientifically sound basis supports day-to-day practice. In the field of water and water management, our engineers are always eager to be active in research and teaching.

Bachelor thesis – Energy recovery system in a drinking water pipeline – economic feasibility study and design

Part of the drinking water network of Wasserbeschaffungsverband Dörnberg is a drinking water pipeline with a length of about 10.51 km, located between the two elevated tanks Dörnberg III and Staufenberg. A particular feature of this pipe is its considerable drop height. In the context of the bachelor thesis of Ms Danielle Scharr, an energy recovery system was designed in order to utilise the unexploited energy potential in an efficient and environmentally beneficial way. A dynamic cost comparison calculation provided conclusions in regard to the economic feasibility and profitability of various versions chosen in advance.

Bachelor thesis – How can effective documentation manage the quality of a rainwater retention basin with the help of digitalisation?

The bachelor thesis of Mr Berend van der Lee details the process of the creation and digitalisation of documentation, using the software upkeepr and applying it to the construction of a new rainwater retention basin in the city of Böblingen, Baden-Württemberg. The digital documentation was devised to support the quality management for the construction of the rainwater retention basin as effectively as possible, to save costs and time and to minimise the risk of mistakes during the implementation. In particular, the reinforcement and concrete work had to be evaluated for its quality. To this end, a document to log this type of work was developed according to the requirements of the German Industrial Standard (DIN). As a result of this thesis, the new paper-based documentation was digitalised with upkeepr.

Admittance to DWA work-group ES-3.10. ‘Pneumatic systems’

The DWA in July 2017 accepted our appointment to the work-group ES-3.10. ‘Pneumatic systems’ so that IWR GmbH with its numerous credentials in regard to the planning and managing of pneumatic sewer systems will henceforth contribute to the new working paper ‘Pumpsysteme außerhalb von Gebäuden – Teil 3: Unterdrucksysteme’ (Pump systems outside of buildings – Part 3: Pneumatic Systems). We have been a proud member of DWA since March 2012. We are delighted about the now intensified exchange of experience!

BioSuck – an international research project

The research project BioSuck aims at using pneumatic sewer systems in order to reduce the high amount of wastewater produced in the foodstuffs industry and to optimise the reuse of valuable leftover materials. Furthermore, we want to raise awareness with regard to the handling of waste materials. The task force consists of us, IWR GmbH, as well as Fraunhofer UMSICHT, the Norwegian University of Science and Technology Trondheim NTNU and the Institute for Ecology of Industrial Areas Katowice IETU, and is led by the Ministry of the Environment of Poland and supported by the German Federal Ministry of Education and Research BMBF.

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Master's thesis – Processes of selective phosphorus elimination

In industry and agriculture phosphorus is mainly used in the production of weapons, matches and especially in fertilisers. About 90% of phosphorus production worldwide is used in phosphate fertilisers.

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Bachelor thesis – Design of facilities for the automatic cleaning of rainwater overflow tanks in the municipality of Ahnatal

Several rainwater overflow basins form part of the approximately 65-km-long sewer network of the municipality of Ahnatal in Hesse. In the context of the bachelor thesis of Mr Jan-Lars Kleine-Tebbe, facilities for the automatic cleaning of the basins Seesenweg and Dörnbergstraße were planned to the final design stage. This included site measuring and its documentation in a field book, the creation of a detailed as-completed drawing, the designing of different planning options for the automatic tank cleaning and their evaluation as well as the final, workable design of the preferred option.