Patents by Inventor Xusheng Meng

Xusheng Meng 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).

  • Zero-valent iron two-phase anaerobic reactor
    Patent number: 8758616
    Abstract: The invention, belongs to the field of wastewater treatment technology, is a two-phase anaerobic reactor enhanced by addition of zero valent iron (ZVI). In the reactor, 2˜4 ZVI-filling layers are settled in the middle of the anaerobic hydrolysis-acidification tank, the effluent of which is fed into the rear anaerobic methanogenic tank. The degradation of organics is effectively enhanced in the anaerobic hydrolysis-acidification tank with dosing of ZVI, which may produce more acetic acid that is a desired substrate for the subsequent methanogenesis. Meanwhile, the acidic environment of the hydrolysis-acidification tank is helpful for the dissolution of ZVI to maintain its activity. The reactor is reasonably designed with high performance and strong shock resistance in anaerobic treatment of various wastewaters. Tests in lab-scale showed that hydrolysis-acidification and methanogenesis in this combined system were significantly improved compared with a reference reactor without addition of ZVI.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: June 24, 2014
    Assignee: Dalian University of Technology
    Inventors: Yaobin Zhang, Yiwen Liu, Xie Quan, Xusheng Meng, Shuo Chen, Zhiqiang Zhao
  • ZERO-VALENT IRON TWO-PHASE ANAEROBIC REACTOR
    Publication number: 20130313172
    Abstract: The invention, belongs to the field of wastewater treatment technology, is a two-phase anaerobic reactor enhanced by addition of zero valent iron (ZVI). In the reactor, 2˜4 ZVI-filling layers are settled in the middle of the anaerobic hydrolysis-acidification tank, the effluent of which is fed into the rear anaerobic methanogenic tank. The degradation of organics is effectively enhanced in the anaerobic hydrolysis-acidification tank with dosing of ZVI, which may produce more acetic acid that is a desired substrate for the subsequent methanogenesis. Meanwhile, the acidic environment of the hydrolysis-acidification tank is helpful for the dissolution of ZVI to maintain its activity. The reactor is reasonably designed with high performance and strong shock resistance in anaerobic treatment of various wastewaters. Tests in lab-scale showed that hydrolysis-acidification and methanogenesis in this combined system were significantly improved compared with a reference reactor without addition of ZVI.
    Type: Application
    Filed: September 21, 2011
    Publication date: November 28, 2013
    Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Yaobin Zhang, Yiwen Liu, Xie Quan, Xusheng Meng, Shuo Chen, Zhiqiang Zhao