Patents by Inventor Mingxia ZHENG
Mingxia ZHENG 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).
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Patent number: 11850664Abstract: A silicified modified zero-valent iron, whose surface layer is a silicon-containing oxide layer formed by silicate, which is obtained by the following method: dissolved silicate and micron iron powder are used as raw materials and mixed in proportion, and ball milling under an inert gas atmosphere to obtain the silicified modified zero-valent iron. The invention also discloses the application of silicified modified zero-valent iron in repairing polluted water bodies. The invention uses green silicate as silicon source to carry out surface silicification modification of micron zero-valent iron, which has simple operation, low cost and is convenient for large-scale production. Moreover, the prepared silicified zero-valent iron has good dispersibility, high reduction activity and strong recycling performance, and can be used for the treatment of various polluted water bodies and soil.Type: GrantFiled: October 15, 2021Date of Patent: December 26, 2023Assignee: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCESInventors: Minda Yu, Mingxia Zheng, Beidou Xi, Jing Su, Yuanyuan Sun, Xiaosong He
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Patent number: 11618871Abstract: An integrated two-phase anaerobic dry fermentation reactor based on a biomimetic principle of rumen includes a reactor body; wherein the reactor body includes a dry fermentation chamber, a secondary fermentation chamber, and a liquid storage chamber. The dry fermentation chamber is arranged at an upper portion of the reactor body. The liquid storage chamber is arranged at a bottom of the reactor body. The secondary fermentation chamber is arranged between the dry fermentation chamber and the liquid storage chamber in the reactor body. The dry fermentation chamber is connected to the secondary fermentation chamber by a porous structure.Type: GrantFiled: May 18, 2018Date of Patent: April 4, 2023Assignee: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCESInventors: Mingxia Zheng, Jing Su, Beidou Xi, Xin Hao, Yuanyuan Sun, Mao Lin, Juan Li
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Patent number: 11530145Abstract: The disclosure is a method for recovering groundwater contaminated with organic phenols. The method includes the step of injecting a remediation agent into the groundwater extracted from the stratum to be rehabilitated or ex-situ extracted, followed by the step of injecting manganese-based oxidant. By adding a suitable proportion of soluble silicon to the water to be treated as a remediation agent, the efficiency of manganese-based oxidant in the treatment of phenolic pollutants is enhanced based on interface properties and stability of various manganese oxides in the regulating and recovering process. The method for recovering groundwater contaminated with organic phenols provided by the disclosure has a simple process and is convenient to operate, the adopted chemicals are inexpensive and easy to obtain, cause little corrosion to the injection equipment, and has a wide range of applications in practice. The adopted oxidant will not produce halogenated toxic by-products during the treatment process.Type: GrantFiled: July 24, 2020Date of Patent: December 20, 2022Assignee: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCESInventors: Mingxia Zheng, Xiaosong He, Minda Yu, Beidou Xi, Xuhui Mao, Jiaxin Cui
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Publication number: 20220118516Abstract: A silicified modified zero-valent iron, whose surface layer is a silicic-containing oxide layer formed by silicate, which is obtained by the following method: dissolved silicate and micron iron powder are used as raw materials and mixed in proportion, and ball milling under an inert gas atmosphere to obtain the silicified modified zero-valent iron. The invention also discloses the application of silicified modified zero-valent iron in repairing polluted water bodies. The invention uses green silicate as silicon source to carry out surface silicification modification of micron zero-valent iron, which has simple operation, low cost and is convenient for large-scale production. Moreover, the prepared silicified zero-valent iron has good dispersibility, high reduction activity and strong recycling performance, and can be used for the treatment of various polluted water bodies and soil.Type: ApplicationFiled: October 15, 2021Publication date: April 21, 2022Inventors: Minda Yu, Mingxia Zheng, Beidou Xi, Jing Su, Yuanyuan Sun, Xiaosong He
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Patent number: 11249023Abstract: Provided are a rapid detection method for a condition of landfill leachate polluting groundwater and an application thereof. The rapid detection method includes: carrying out fluorescence detection on groundwater in a specific region of a landfill, and determining whether the groundwater is polluted according to a ratio of fluorescence intensities at specific excitation/emission wavelengths in a specific fluorescence region. The rapid detection method provided by the solution establishes characteristic fluorescence spectrum regions, fluorescence intensities and regular characteristics thereof of organic matters in leachate-polluted groundwater of a landfill in a fluorescence spectrum region, and can achieve the rapid detection of a condition of landfill leachate polluting groundwater by means of a portable fluorescence detector on site. The detection method provided by the solution is characterized by rapid detection, no need of chemical reagents, simple operation, high detection sensitivity and lower cost.Type: GrantFiled: June 22, 2020Date of Patent: February 15, 2022Assignee: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCESInventors: Xiaosong He, Mingxia Zheng, Beidou Xi, Guangchun Shan, Jing Su, Xuemei Fu, Yuanyuan Sun, Hongyu Ding
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Publication number: 20210198131Abstract: The disclosure is a method for recovering groundwater contaminated with organic phenols. The method includes the step of injecting a remediation agent into the groundwater extracted from the stratum to be rehabilitated or ex-situ extracted, followed by the step of injecting manganese-based oxidant. By adding a suitable proportion of soluble silicon to the water to be treated as a remediation agent, the efficiency of manganese-based oxidant in the treatment of phenolic pollutants is enhanced based on interface properties and stability of various manganese oxides in the regulating and recovering process. The method for recovering groundwater contaminated with organic phenols provided by the disclosure has a simple process and is convenient to operate, the adopted chemicals are inexpensive and easy to obtain, cause little corrosion to the injection equipment, and has a wide range of applications in practice. The adopted oxidant will not produce halogenated toxic by-products during the treatment process.Type: ApplicationFiled: July 24, 2020Publication date: July 1, 2021Applicant: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCESInventors: Mingxia ZHENG, Xiaosong HE, Minda YU, Beidou XI, Xuhui MAO, Jiaxin CUI
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Patent number: 10999141Abstract: A multi-objective optimization method for groundwater pollution monitoring network, which mainly includes four steps: groundwater numerical value simulation, groundwater vulnerability assessment, the establishment of the monitoring network optimization model, and the solving of the optimization model. The core of the method is to establish a multi-objective optimization model aimed at establishing the least monitoring wells, monitoring the maximum pollutant concentration, and monitoring the maximum regional vulnerability value. Solving the optimization model by the algorithm and considering the relationship between the quality error and the number of monitoring wells comprehensively to determine the well number and location of the monitoring network.Type: GrantFiled: April 15, 2020Date of Patent: May 4, 2021Assignee: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCESInventors: Jing Su, Yuanyuan Sun, Beidou Xi, Mao Lin, Juan Li, Mingxia Zheng, Danfeng Ji, Chang Liu
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Publication number: 20200378018Abstract: The present invention discloses a carbon dots-based photocatalytic electrode for simultaneous organic matter degradation and heavy metal reduction and preparation method and use thereof, which belong to the field of multifunctional environmental materials and water treatment. With respect to the insufficient ability of simultaneous organic matter degradation and heavy metal reduction of existing photocatalytic electrodes, the present application provides a photocatalytic electrode with a Z-type heterojunction structure constructed by using carbon dots (CDs) as an electronic assistant. The directional transfer ability of photo-generated electrons is improved, while the recombination efficiency of photo-generated electrons and holes is reduced. The performance of a photocatalytic electrode in simultaneous organic matter degradation and heavy metal reduction is thereby improved.Type: ApplicationFiled: July 10, 2020Publication date: December 3, 2020Inventors: Xiaosong HE, Mingxia ZHENG, Jun CUI, Beidou XI, Xuemei FU, Hongyu DING, Yuanyuan SUN
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Publication number: 20200348232Abstract: Provided are a rapid detection method for a condition of landfill leachate polluting groundwater and an application thereof. The rapid detection method includes: carrying out fluorescence detection on groundwater in a specific region of a landfill, and determining whether the groundwater is polluted according to a ratio of fluorescence intensities at specific excitation/emission wavelengths in a specific fluorescence region. The rapid detection method provided by the solution establishes characteristic fluorescence spectrum regions, fluorescence intensities and regular characteristics thereof of organic matters in leachate-polluted groundwater of a landfill in a fluorescence spectrum region, and can achieve the rapid detection of a condition of landfill leachate polluting groundwater by means of a portable fluorescence detector on site. The detection method provided by the solution is characterized by rapid detection, no need of chemical reagents, simple operation, high detection sensitivity and lower cost.Type: ApplicationFiled: June 22, 2020Publication date: November 5, 2020Applicant: Chinese Research Academy of Environmental SciencesInventors: Xiaosong HE, Mingxia ZHENG, Beidou XI, Guangchun SHAN, Jing SU, Xuemei FU, Yuanyuan SUN, Hongyu DING
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Publication number: 20200252283Abstract: A multi-objective optimization method for groundwater pollution monitoring network, which mainly includes four steps: groundwater numerical value simulation, groundwater vulnerability assessment, the establishment of the monitoring network optimization model, and the solving of the optimization model. The core of the method is to establish a multi-objective optimization model aimed at establishing the least monitoring wells, monitoring the maximum pollutant concentration, and monitoring the maximum regional vulnerability value. Solving the optimization model by the algorithm and considering the relationship between the quality error and the number of monitoring wells comprehensively to determine the well number and location of the monitoring network.Type: ApplicationFiled: April 15, 2020Publication date: August 6, 2020Inventors: Jing SU, Yuanyuan SUN, Beidou XI, Mao LIN, Juan LI, Mingxia ZHENG, Danfeng JI, Chang LIU
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Publication number: 20200208085Abstract: An integrated two-phase anaerobic dry fermentation reactor based on a biomimetic principle of rumen includes a reactor body; wherein the reactor body includes a dry fermentation chamber, a secondary fermentation chamber, and a liquid storage chamber. The dry fermentation chamber is arranged at an upper portion of the reactor body. The liquid storage chamber is arranged at a bottom of the reactor body. The secondary fermentation chamber is arranged between the dry fermentation chamber and the liquid storage chamber in the reactor body. The dry fermentation chamber is connected to the secondary fermentation chamber by a porous structure.Type: ApplicationFiled: May 18, 2018Publication date: July 2, 2020Applicant: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCESInventors: Mingxia ZHENG, Jing SU, Beidou XI, Xin HAO, Yuanyuan SUN, Mao LIN, Juan LI