Patents by Inventor Baijun Wang

Baijun Wang 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).

  • Method for sludge-reduced electrocatalytic reduction-oxidation pretreatment of nitrotoluene production wastewater
    Patent number: 9944545
    Abstract: Embodiments herein relate to methods for sludge reduction for pretreatment of nitrotoluene wastewater using electro-catalytic redox. The embodiments may include (a) adjusting a pH of the nitrotoluene wastewater to 1.5 to 2.0, standing for precipitation, draining sludge of the nitrotoluene wastewater at the bottom, obtaining supernatant of nitrotoluene wastewater, placing the supernatant through a cathode inlet into a cathode chamber of an electrochemical reactor; (b) performing electrochemical treatment, wherein reduction reaction of the supernatant of the nitrotoluene wastewater takes place at the cathode chamber, the nitrotoluene wastewater is placed into the anode chamber for oxidation reaction through the cathode outlet, the catholyte tank, and the anode inlet in sequence; (c) adjusting the nitrotoluene wastewater treated in step (b) via the anolyte tank, and then discharging the nitrotoluene wastewater into a biochemical system.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: April 17, 2018
    Assignee: NANJING UNIVERSITY
    Inventors: Aimin Li, Yeli Jiang, Changming Wang, Qing Zhou, Zhaolian Zhu, Baijun Wang, Zixiao Xu, Mengqiao Wang
  • Method for Sludge-Reduced Electrocatalytic Reduction-Oxidation Pretreatment of Nitrotoluene Production Wastewater
    Publication number: 20160257582
    Abstract: Embodiments herein relate to methods for sludge reduction for pretreatment of nitrotoluene wastewater using electro-catalytic redox. The embodiments may include (a) adjusting a pH of the nitrotoluene wastewater to 1.5 to 2.0, standing for precipitation, draining sludge of the nitrotoluene wastewater at the bottom, obtaining supernatant of nitrotoluene wastewater, placing the supernatant through a cathode inlet into a cathode chamber of an electrochemical reactor; (b) performing electrochemical treatment, wherein reduction reaction of the supernatant of the nitrotoluene wastewater takes place at the cathode chamber, the nitrotoluene wastewater is placed into the anode chamber for oxidation reaction through the cathode outlet, the catholyte tank, and the anode inlet in sequence; (c) adjusting the nitrotoluene wastewater treated in step (b) via the anolyte tank, and then discharging the nitrotoluene wastewater into a biochemical system.
    Type: Application
    Filed: September 23, 2014
    Publication date: September 8, 2016
    Inventors: Aimin Li, Yeli Jiang, Changming Wang, Qing Zhou, Zhaolian Zhu, Baijun Wang, Zixiao Xu, Mengqiao Wang