Patents by Inventor Tarun Kumar Bera

Tarun Kumar Bera 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).

  • Patent number: 11535537
    Abstract: A method for efficiently removal of oxidised selenium from liquid, such as FGD wastewater. The method involves adding a non-iron-based reducing agent (e.g. sodium dithionite) and preferably Fe(II) ions to the liquid at a pH of above 7.5 or 8 and precipitating elemental selenium from the liquid.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: December 27, 2022
    Assignee: Ecolab USA Inc.
    Inventors: Tarun Kumar Bera, Jitendra T. Shah, Vaideeswaran Sivaswamy
  • Patent number: 10626750
    Abstract: Disclosed are methods useful in applications relating to blast furnace processes. The methods of the present invention provide enhanced deposition inhibition of particulate matter in top-pressure recovery turbines. The methods of the present invention comprise adding nitrogen-containing compounds to a top-pressure recovery turbine, inhibiting deposition of solids formed from blast furnace gas on top-pressure recovery turbine components.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: April 21, 2020
    Assignee: Ecolab USA Inc.
    Inventors: Tarun Kumar Bera, Fan Yang, Jiaqi Zhang, Glenn L. Scattergood, Roger W. Fowee
  • Patent number: 10358363
    Abstract: Novel fluorophores and their use as fluorescent tags for polymers used in wastewater treatment. The fluorophores are quaternary amine salts that can be used to synthesize fluorescent tagged polymers that are stable at varying pH, have significant water solubility, and may be fluorescent at wavelengths greater than 550 nm. The fluorophores readily undergo polymerization with vinylic monomers to form fluorescent tagged polymers with excellent incorporation of fluorophore into the polymer framework. The fluorescent tagged polymers are useful to monitor and optionally dose industrial wastewater.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: July 23, 2019
    Assignee: Ecolab USA Inc.
    Inventors: Tarun Kumar Bera, Deepak Jadhav, Kiran Phatangare, Trishul Artham, Jitendra Shah, Wesley Lamar Whipple, Winston Su, John David Morris, Paul Joseph Zinn
  • Patent number: 10301205
    Abstract: The present disclosure relates to a formulation and a process for the removal of inorganic impurities from waste water. The formulation consists of a blend of at least one alkali metal aluminate, at least one cationic organic coagulant and optionally at least one alkalinating agent in pre-determined proportions. The process for decontamination using the afore-stated formulation includes steps such as admixing, settling, microfiltration and optionally acidification, ultrafiltration and reverse osmosis. The disclosure further provides an apparatus for the removal of inorganic impurities from waste water.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: May 28, 2019
    Assignee: ECOLAB USA INC.
    Inventors: Tarun Kumar Bera, Manish Kumar Singh, Yogesh Bhole
  • Patent number: 10000393
    Abstract: Dewatering agents and methods of dewatering wastewater slurries are provided. Also disclosed are methods for improving the separation of solids from water. The water may be produced water, raw water, or wastewater, for example. The dewatering agents can be in solutions and the dewatering agent solutions may include various components in addition to soy protein, soy flour or a combination of soy flour and soy protein.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: June 19, 2018
    Assignee: ECOLAB USA INC.
    Inventors: Prasad Y. Duggirala, Weiguo Cheng, Darlington Mlambo, Tarun Kumar Bera, Luiz Wanderley Bratfisch Pace
  • Publication number: 20180163564
    Abstract: Disclosed are methods useful in applications relating to blast furnace processes. The methods of the present invention provide enhanced deposition inhibition of particulate matter in top-pressure recovery turbines. The methods of the present invention comprise adding nitrogen-containing compounds to a top-pressure recovery turbine, inhibiting deposition of solids formed from blast furnace gas on top-pressure recovery turbine components.
    Type: Application
    Filed: December 8, 2017
    Publication date: June 14, 2018
    Applicant: Ecolab USA Inc.
    Inventors: Tarun Kumar Bera, Fan Yang, Jiaqi Zhang, Glenn L. Scattergood, Roger W. Fowee
  • Publication number: 20180111858
    Abstract: Novel fluorophores and their use as fluorescent tags for polymers used in wastewater treatment. The fluorophores are quaternary amine salts that can be used to synthesize fluorescent tagged polymers that are stable at varying pH, have significant water solubility, and may be fluorescent at wavelengths greater than 550 nm. The fluorophores readily undergo polymerization with vinylic monomers to form fluorescent tagged polymers with excellent incorporation of fluorophore into the polymer framework. The fluorescent tagged polymers are useful to monitor and optionally dose industrial wastewater.
    Type: Application
    Filed: March 17, 2016
    Publication date: April 26, 2018
    Applicant: Ecolab USA Inc.
    Inventors: Tarun Kumar Bera, Deepak Jadhav, Kiran Phatangare, Trishul Artham, Jitendra Shah, Wesley Lamar Whipple, Winston Su, John David Morris, Paul Joseph Zinn
  • Publication number: 20170349462
    Abstract: A method for efficiently removal of oxidised selenium from liquid, such as FGD wastewater. The method involves adding a non-iron-based reducing agent (e.g. sodium dithionite) and preferably Fe(II) ions to the liquid at a pH of above 7.5 or 8 and precipitating elemental selenium from the liquid.
    Type: Application
    Filed: October 26, 2015
    Publication date: December 7, 2017
    Applicant: ECOLAB USA INC.
    Inventors: Tarun Kumar BERA, Jitendra T. SHAH, Vaideeswaran SIVASWAMY
  • Publication number: 20170096357
    Abstract: The present disclosure relates to a formulation and a process for the removal of inorganic impurities from waste water. The formulation consists of a blend of at least one alkali metal aluminate, at least one cationic organic coagulant and optionally at least one alkalinating agent in pre-determined proportions. The process for decontamination using the afore-stated formulation includes steps such as admixing, settling, microfiltration and optionally acidification, ultrafiltration and reverse osmosis. The disclosure further provides an apparatus for the removal of inorganic impurities from waste water.
    Type: Application
    Filed: February 17, 2015
    Publication date: April 6, 2017
    Applicant: ECOLAB USA INC.
    Inventors: Tarun Kumar BERA, Manish Kumar SINGH, Yogesh BHOLE
  • Publication number: 20160200600
    Abstract: Dewatering agents and methods of dewatering wastewater slurries are provided. Also disclosed are methods for improving the separation of solids from water. The water may be produced water, raw water, or wastewater, for example. The dewatering agents can be in solutions and the dewatering agent solutions may include various components in addition to soy protein, soy flour or a combination of soy flour and soy protein.
    Type: Application
    Filed: January 14, 2015
    Publication date: July 14, 2016
    Applicant: Ecolab USA Inc.
    Inventors: Prasad Y. Duggirala, Weiguo Cheng, Darlington Mlambo, Tarun Kumar Bera, Luiz Wanderley Bratfisch Pace