Patents Assigned to Fraunhofer Gesellschaft zur Foerder der angewandten Forschung e. V.
  • Process for purifying dairy wastewater
    Patent number: 5746920
    Abstract: A process and apparatus for purifying lactose-containing wastewater. The process comprises first treating the wastewater with base. The treated wastewater is then introduced into a fermenter where the lactose present in the wastewater is fermented to form a fermentation broth and lactic acid. The broth is advantageously subjected to purification and the purified broth is subjected to bipolar electrodialysis to yield concentrated lactic acid and base solutions from the purified broth. A device is provided for carrying out the process.
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: May 5, 1998
    Assignee: Fraunhofer-Gesellschaft zur Foerder der Angewandten Forschung e.V.
    Inventors: Peter Boergardts, Wolfgang Krischke, Walter Troesch
  • Apparatus for determining the state of physical properties of rechargeable electric energy storage devices
    Patent number: 5349540
    Abstract: A process for determination of the state of physical properties of recharble electric energy storage device. Process input values of the energy storage device are measured and processed in a computer, in accordance with a predetermined model in the form of closed linear or non-linear multiparametric functions or a heuristic prametering process to generate derived values for physical properties, which are compared with the measured process input values, and the model or estimation is modified for the succeeding measurement.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: September 20, 1994
    Assignee: Fraunhofer Gesellschaft zur Foerder der angewandten Forschung e. V.
    Inventors: Michael Birkle, Gunther Grasemann, Hartwig Steusloff