DE / EN / RU / AR WTE Group Services credentials R&D IMS Current Career Download Contact Patents Research projects Publications Lectures Research & Development As a future-oriented company, research and development are very important to us. That is why we also rely on cooperation with renowned research institutes. * The following innovations, for example, have been brought about through this cooperation. Patented method for sludge level measurement In contrast to the usual optical or acoustic methods for reflecting sludge in settling basins, the method we have developed uses passive pressure sensors to measure the density difference between the sludge layer and the clear water layer. The sensors measure the upper sludge level in the separation zone at the transition from the clear water to the incoming sludge as well as the lower sludge level at the transition from the storage zone to the thickened sludge on the bottom or in the funnel. This easy-to-use, patented process for measuring the density difference does not require any moving components in the secondary clarifier. Since the largely maintenance-free sensors are insensitive to contamination, they deliver particularly reliable measured values. Membrane degassing to reduce floating sludge With our also patented process for reducing floating sludge in sewage treatment plants, the oxygen requirement can be significantly reduced compared to pure oxygen stripping. Elemental nitrogen is produced by denitrification in biological wastewater treatment. The oversaturation of the activated sludge with nitrogen can disturb the sedimentation; it forms scum which endangers the effluent quality of the WWTP. The N2 membrane contactor developed by us avoids this. It removes excess nitrogen from the activated sludge before it enters the secondary clarifier and regulates the exchange of substances in direct contact between the two phases at the pore openings. Membrane degassing with the N2 membrane contactor is particularly recommended for applications where low operating costs are decisive for the choice of process. Joint project IBAS The aim of the joint project Innovative Biological Wastewater Treatment System, or IBAS for short, is to bring a biological wastewater treatment system with functionally differentiated biofilm reactors onto the market. The system will largely eliminate nitrogen compounds in accordance with the requirements of the European Water Framework Directive for sensitive areas. The spatial separation of heterotrophs and autotrophs makes it possible to set the optimal conditions in each case. The system brings advantages such as the reduction of the tank volume for carbon degradation and denitrification, greater stability of nitrification, energy savings in ventilation and low investment costs. It will be used in both new and existing sewage treatment plants. The project, which is funded by the Federal Ministry of Education and Research (BMBF), is being implemented by WTE Wassertechnik GmbH together with Martin Membrane Systems (MMS) AG, the Research Institute for Water and Waste Management at RWTH Aachen eV (FiW) and wastewater treatment Dietzenbach GmbH (adg) as an associated member. * Research Institute for Water and Waste Management at RWTH Aachen (FiW) eV; Technical University Hamburg-Harburg, Institute for Wastewater Management and Water Protection (AWW); TuTech Innovation GmbH; Ruhr University Bochum, Chair for Urban Water Management and Environmental Technology; Technical University of Dresden, Institute for Urban and Industrial Water Management You can find an overview of the research projects here . Contact Feel free to contact us! Lisa Heim-Neumann T +49 201 8968-571 F +49 201 8968-555 Lisa.HeimNeumann@wte.de begin R&D Contact WTE Wassertechnik GmbH +49 201 8968 571 Lisa Heim-Neumann Fax +49 201 8968 555 info@wte.de Ruhrallee 185 45136 Essen Germany WTE Group WTE Wassertechnik GmbH WTE Betriebsgesellschaft mbH WTE management Company profile Services Project modules Planning and construction business financing Services R&D Patents Research projects Publications Lectures IMS Quality management Environmental management Osh Energy management Download Annual report Company brochure Project data sheets imprint Terms of Use Disclaimer Copyright © 2016 by WTE Wassertechnik GmbH, Ruhrallee 185, 45136 Essen, Germany