Patents by Inventor ANDRA MIHAELA PREDESCU

ANDRA MIHAELA PREDESCU 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).

  • PHOTOCATALYSIS AND DEVICE IMPLEMENTING SAME
    Publication number: 20210261443
    Abstract: A method and apparatus for photodegradation of pollutants using a modular baffled wastewater purification tank. Baffle surfaces are lined with a photocatalyst film and arrange in such a way to provide liquid turbulence and increased time for the photodegradation processes to occur. For certain embodiments, after water treatment, the baffle walls may be washed, regenerated, and re-introduced in the water treatment tank. The water treatment tank includes a series of UV lamps placed on the top of the photocatalytic chamber. Because of the modular design of the baffled purification system, the water treatment and the change of baffle pads can take place singly or simultaneously.
    Type: Application
    Filed: February 20, 2020
    Publication date: August 26, 2021
    Applicant: POLITEHNICA UNIVERSITY OF BUCHAREST
    Inventors: CRISTIAN PREDESCU, RUXANDRA VIDU, ECATERINA MATEI, ANDRA MIHAELA PREDESCU, MIRELA GABRIELA SOHACIU, ANDREI CONSTANTIN BERBECARU, GRIGORE VLAD
  • Magnetic nanostructures and device implementing same
    Patent number: 9469555
    Abstract: A method and apparatus for selective removal of heavy ions, biological, cations, anions or other elements of interest from liquids using magnetic nanoparticles, and recovery of nanoparticles to be reused in the wastewater purification. For certain embodiments, after water treatment and magnetic separation, the loaded nanoparticles may be washed, regenerated, collected and re-introduced in the water treatment cycle. Water treatment and particle regeneration take place singly or simultaneously. In another disclosed embodiment of the process, the electricity consumed by the pumping system is supplied by renewable energy sources such as solar, wind, geothermal, biogas or small hydro.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: October 18, 2016
    Inventors: Cristian Predescu, Ecaterina Matei, Andra Mihaela Predescu, Andrei Constantin Berbecaru, Ruxandra Vidu
  • MAGNETIC NANOSTRUCTURES AND DEVICE IMPLEMENTING SAME
    Publication number: 20150368126
    Abstract: A method and apparatus for selective removal of heavy ions, biological, cations, anions or other elements of interest from liquids using magnetic nanoparticles, and recovery of nanoparticles to be reused in the wastewater purification. For certain embodiments, after water treatment and magnetic separation, the loaded nanoparticles may be washed, regenerated, collected and re-introduced in the water treatment cycle. Water treatment and particle regeneration take place singly or simultaneously. In another disclosed embodiment of the process, the electricity consumed by the pumping system is supplied by renewable energy sources such as solar, wind, geothermal, biogas or small hydro.
    Type: Application
    Filed: June 19, 2014
    Publication date: December 24, 2015
    Inventors: CRISTIAN PREDESCU, ECATERINA MATEI, ANDRA MIHAELA PREDESCU, ANDREI CONSTANTIN BERBECARU, RUXANDRA VIDU