Patents by Inventor Anthony Theodoor OOSTERHOFF

Anthony Theodoor OOSTERHOFF has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Controlled simultaneous nitrification and denitrification in wastewater treatment
    Patent number: 11339067
    Abstract: A process for controlling the aeration rate during the aerobic phase of a wastewater treatment process is disclosed, which comprises: (a) measuring at moment t1 the ammonium concentration [NH4+]1 and nitrogen oxide concentration [NOx]1 in a mixture of wastewater and microbial sludge; (b) determining a nitrogen oxide target concentration [NOx]F1 at the end of the aerobic phase based on at least the current ammonium concentration [NH4+]1 and the current NOx concentration [NOx]1; (c) determining a setpoint [NOx]SP1 based on interpolation between [NOx]1 and [NOx]F1; (d) adjusting the aeration rate to minimise error between [NOx]1 and [NOx]SP1; and (e) repeating steps (a) to (d) at further moments t1. The invention further concerns a process for the treatment of wastewater, using the process.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: May 24, 2022
    Assignee: HASKONINGDHV NEDERLAND B.V.
    Inventors: Edward John Henrik Van Dijk, Kim Michael Van Schagen, Anthony Theodoor Oosterhoff
  • CONTROLLED SIMULTANEOUS NITRIFICATION AND DENITRIFICATION IN WASTEWATER TREATMENT
    Publication number: 20200087181
    Abstract: A process for controlling the aeration rate during the aerobic phase of a wastewater treatment process is disclosed, which comprises: (a) measuring at moment t1 the ammonium concentration [NH4+]1 and nitrogen oxide concentration [NOx]1 in a mixture of wastewater and microbial sludge; (b) determining a nitrogen oxide target concentration [NOx]F1 at the end of the aerobic phase based on at least the current ammonium concentration [NH4+]1 and the current NOx concentration [NOx]1; (c) determining a setpoint [NOx]SP1 based on interpolation between [NOx]1 and [NOx]F1; (d) adjusting the aeration rate to minimise error between [NOx]1 and [NOx]SP1; and (e) repeating steps (a) to (d) at further moments t1. The invention further concerns a process for the treatment of wastewater, using the process.
    Type: Application
    Filed: November 22, 2019
    Publication date: March 19, 2020
    Inventors: Edward John Henrik VAN DIJK, Kim Michael VAN SCHAGEN, Anthony Theodoor OOSTERHOFF