Patents by Inventor Davor Cotoras Tadic

Davor Cotoras Tadic 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).

  • Biosorbents for the extraction of metals
    Patent number: 8748153
    Abstract: A biosorbent for removing cationic and/or anionic metals from aqueous solutions, and a process for the production of the biosorbent. The biosorbent includes bacterial aggregates of Bacillus sp. VCHB-10, deposited as NRRL-B-30881, and treated with polyethyleneimine and glutaraldehyde. Among the metals in their cationic form, the following are considered: cations of Ag, Al, Au, Co, Cd, Cu, Cr, Fe, Hg, Mn, Ni, Pb, Pd, Pt, U, Th and Zn. Among the metals in their anionic form, the following are considered: anions of As, Cr and Mo. Removal or recovery of metals from wastewater using the biosorbent is also described.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: June 10, 2014
    Assignees: Universidad de Chile, Biotecnologia del Agua Ltda.
    Inventors: Davor Cotoras Tadic, Pabla Viedma, Juan Manuel Gajardo Sandoval
  • BIOSORBENTS FOR THE EXTRACTION OF METALS
    Publication number: 20120024795
    Abstract: A biosorbent for removing cationic and/or anionic metals from aqueous solutions, and a process for the production of the biosorbent. The biosorbent includes bacterial aggregates of Bacillus sp. VCHB-10, deposited as NRRL-B-30881, and treated with polyethyleneimine and glutaraldehyde. Among the metals in their cationic form, the following are considered: cations of Ag, Al, Au, Co, Cd, Cu, Cr, Fe, Hg, Mn, Ni, Pb, Pd, Pt, U, Th and Zn. Among the metals in their anionic form, the following are considered: anions of As, Cr and Mo. Removal or recovery of metals from wastewater using the biosorbent is also described.
    Type: Application
    Filed: May 11, 2011
    Publication date: February 2, 2012
    Applicants: BIOTECNOLOGIA DEL AGUA LTDA., UNIVERSIDAD DE CHILE
    Inventors: Davor Cotoras Tadic, Pabla Viedma, Juan Manuel Gajardo Sandoval
  • Plant for the removal of metals by biosorption from mining or industrial effluents
    Patent number: 7479220
    Abstract: A method and a plant to remove metals by biosorption from mining or industrial effluents comprising: (a) subject the effluent to at least one first stage of pre-treatment, selecting among: precipitation by pH rising, solvent extraction or solvent extraction on emulsified membranes in order to reduce its load of metals to a concentration level that allows it to be treated by the next stage of biosorption, and (b) subject the liquid that has been previously in the stage of pre-treatment to a second stage of continuous metals removal by biosorption.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: January 20, 2009
    Assignees: Universidad De Chile, Biotechnologies Del Aqua Ltda.
    Inventors: Davor Cotoras Tadic, Fernando Valenzuela Lozano, Miguel Esteban Zarzar Maza, Pabla Leticia Viedma Elicer
  • Process And Plant For The Removal Of Metals By Biosorption From Mining Or Industrial Effluents
    Publication number: 20080142422
    Abstract: A method and a plant to remove metals by biosorption from mining or industrial effluents comprising: (a) subject the effluent to at least one first stage of pre-treatment, selecting among: precipitation by pH rising, solvent extraction or solvent extraction on emulsified membranes in order to reduce its load of metals to a concentration level that allows it to be treated by the next stage of biosorption, and (b) subject the liquid that has been previously in the stage of pre-treatment to a second stage of continuous metals removal by biosorption.
    Type: Application
    Filed: December 4, 2007
    Publication date: June 19, 2008
    Applicants: UNIVERSIDAD DE CHILE, BIOTECHNOLOGIAS DEL AGUA LTDA.
    Inventors: Davor Cotoras Tadic, Fernando Valenzuela Lozano, Miguel Esteban Zarzar Maza, Pabla Leticia Viedma Elicer
  • Process for the removal of metals by biosorption from mining or industrial effluents
    Patent number: 7326344
    Abstract: A method and a plant to remove metals by biosorption from mining or industrial effluents comprising: (a) subject the effluent to at least one first stage of pre-treatment, selecting among: precipitation by pH rising, solvent extraction or solvent extraction on emulsified membranes in order to reduce its load of metals to a concentration level that allows it to be treated by the next stage of biosorption, and (b) subject the liquid that has been previously in the stage of pre-treatment to a second stage of continuous metals removal by biosorption.
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: February 5, 2008
    Assignees: Universidad de Chile, Biotechnologias del Agua Ltda.
    Inventors: Davor Cotoras Tadic, Fernando Valenzuela Lozano, Miguel Esteban Zarzar Maza, Pabla Leticia Viedma Elicer