Patents by Inventor Yongfeng JIA
Yongfeng JIA 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: 11633768Abstract: An in-situ reagents injection system comprises a compressed air storage tank, a remediation reagents storage tank, an injection adjusting valve, an injection pipe, an upper sealing device and a lower sealing device. When the reagents injection is carried out, the compressed air is injected before the remediation reagents is injected, the porosity of the aquifer medium is increased by utilizing the air pressure expansion technology to form a relatively uniform dominant channel, and the remediation reagents is injected to realize uniform and efficient conveying of the reagents. The in-situ reagents injection system and method can make the homogeneous and efficient conveying of the remediation reagents, and ensure the full utilization of the remediation reagents, with low energy consumption of injection equipment, simple process, and flexible operation. The injection is performed in sections from top to bottom according to the steps to improve the in-situ reagents injection efficiency and remediation efficiency.Type: GrantFiled: April 3, 2020Date of Patent: April 25, 2023Assignee: Chinese Research Academy of Environmental SciencesInventors: Yonghai Jiang, Beidou Xi, Yu Yang, Xinying Lian, Xiangjian Xu, Yongfeng Jia, Fu Xia, Xu Han
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Publication number: 20230026850Abstract: A device and method for preparing in-situ molded biochar with high specific surface area. Crushed and mixed biomass and modifier are fed into a hot pressing and pyrolysis device, and hot-pressing molding and pyrolysis carbonization are completed synchronously, which solves the problem of multiple steps and complicated equipment in the existing preparation process for molded biochar material. In-situ bonding molding is realized by adhesion, bridging, cross-linking and mechanical interlocking functions of low-temperature molten & softened lignin and pyrolytic tar. No additional cross-linking agent is needed in this process, so the production cost is low. Covering and suffocating actions of trace flame retardant modifier are utilized to reduce the temperature of biomass pyrolysis carbonization, inhibit excessive ablation and accelerate polycondensation reaction, thus to improve the specific surface area and yield of a product, and improve the cost performance of the product.Type: ApplicationFiled: September 18, 2020Publication date: January 26, 2023Inventors: Yuan GAO, Yongfeng JIA, Aimin LI, Shaofeng WANG, Xin WANG
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Patent number: 11535543Abstract: A medium material for removing phenol contamination from groundwater, a method of producing the same, and use of the same id disclosed. In at least some embodiments, the medium material is a granular material which has an average particle diameter of 0.5-1.5 cm and is formed from a bacteria-entrapping solution, a manganese sand filter material, modified bentonite, and biochar at a mass ratio of 1:0.2-0.4:0.2-0.4:0.1-0.2 by a series of processes including strain culturing, catalysis, mixing, solidification, and the like. The medium material can remove phenol from groundwater, is a safe and environment-friendly material, has a long service life, and/or achieves waste treatment with waste.Type: GrantFiled: March 19, 2020Date of Patent: December 27, 2022Assignee: Chinese Research Academy of Environmental SciencesInventors: Yonghai Jiang, Xinying Lian, Beidou Xi, Yu Yang, Yongfeng Jia, Fu Xia, Xu Han
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Publication number: 20220342112Abstract: A simulation system for an in-situ column experiment in a groundwater well and a simulation method are provided. The simulation system includes: an experimental column device, a sample taking device, and a sample injection device, where solid remediation agent and/or aquifer sediment are provided within the experimental column device, and is configured to be capable of being arranged in an experimental well and located below a water level; a bottom of the experimental column device is provided with a water inlet, and a top of the experimental column device is provided with a water outlet, where the top water outlet connects to the sample taking device, and the bottom water inlet connects to the sample injection device.Type: ApplicationFiled: May 29, 2020Publication date: October 27, 2022Inventors: Yongfeng Jia, Yonghai Jiang, Beidou Xi, Xinying Lian, Yu Yang, Xiangjian Xu, Fan Feng
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Patent number: 11225422Abstract: A field groundwater filtering sampling and moving-water flow index measuring device comprises a precipitation tank, an electrode measuring column of moving-water flow, a suction filter unit and a control unit; also provided is a measuring method by adopting the index measuring device. Sample filtering and electrode measuring work in the field groundwater sampling process can be integrally solved, sampling time point selection after well washing is scientifically and automatically achieved, and the sample filtering and collecting efficiency is remarkably improved; and meanwhile, the accuracy of testing various in-situ indexes such as pH value, oxidation reduction potential and the like in groundwater is remarkably improved in the design of moving-water flow electrode measurement. The method has good application prospect and value for carrying out groundwater monitoring and evaluation, remediation and governance, and the like.Type: GrantFiled: May 29, 2020Date of Patent: January 18, 2022Assignee: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCESInventors: Yonghai Jiang, Yongfeng Jia, Beidou Xi, Xinying Lian, Yu Yang, Xiangjian Xu, Fan Feng
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Patent number: 11203538Abstract: A remediation system based on pollution obstruction for underground water with DNAPL pollutant is provided, including a vertical obstructing wall, a pump-out treating unit and a recharging unit, wherein the vertical obstructing wall is distributed at the periphery of a polluted area to obstruct the polluted underground water in the vertical obstructing wall; the pump-out treating unit includes a plurality of water pumping wells and overground treatment facility that are distributed in the polluted area, the plurality of the water pumping wells are configured to pump the polluted underground water out and sending it into the overground treatment facility so as to be treated; the recharging unit includes a plurality of recharging wells, and water treated by the overground treatment facility is recharged into a target aquifer in the polluted area by the plurality of the recharging wells. A remediation method using the system is provided.Type: GrantFiled: November 20, 2018Date of Patent: December 21, 2021Assignee: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCESInventors: Yonghai Jiang, Yu Yang, Beidou Xi, Xinying Lian, Huan Huan, Fu Xia, Yongfeng Jia, Xu Han
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Publication number: 20200377389Abstract: A field groundwater filtering sampling and moving-water flow index measuring device comprises a precipitation tank, an electrode measuring column of moving-water flow, a suction filter unit and a control unit; the invention also provides a measuring method by adopting the index measuring device. According to the invention, sample filtering and electrode measuring work in the field groundwater sampling process can be integrally solved, sampling time point selection after well washing is scientifically and automatically achieved, and the sample filtering and collecting efficiency is remarkably improved; and meanwhile, the accuracy of testing various in-situ indexes such as pH value, oxidation reduction potential and the like in groundwater is remarkably improved in the design of moving-water flow electrode measurement. The method has good application prospect and value for carrying out groundwater monitoring and evaluation, remediation and governance, and the like.Type: ApplicationFiled: May 29, 2020Publication date: December 3, 2020Inventors: Yonghai JIANG, Yongfeng JIA, Beidou XI, Xinying LIAN, Yu YANG, Xiangjian XU, Fan FENG
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Publication number: 20200316662Abstract: An in-situ reagents injection system comprises a compressed air storage tank, a remediation reagents storage tank, an injection adjusting valve, an injection pipe, an upper sealing device and a lower sealing device. When the reagents injection is carried out, the compressed air is injected before the remediation reagents is injected, the porosity of the aquifer medium is increased by utilizing the air pressure expansion technology to form a relatively uniform dominant channel, and the remediation reagents is injected to realize uniform and efficient conveying of the reagents. The in-situ reagents injection system and method can make the homogeneous and efficient conveying of the remediation reagents, and ensure the full utilization of the remediation reagents, with low energy consumption of injection equipment, simple process, and flexible operation. The injection is performed in sections from top to bottom according to the steps to improve the in-situ reagents injection efficiency and remediation efficiency.Type: ApplicationFiled: April 3, 2020Publication date: October 8, 2020Inventors: Yonghai JIANG, Beidou XI, Yu YANG, Xinying LIAN, Xiangjian XU, Yongfeng JIA, Fu XIA, Xu HAN
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Publication number: 20200308035Abstract: A medium material for removing phenol contamination from groundwater, a method of producing the same, and use of the same id disclosed. In at least some embodiments, the medium material is a granular material which has an average particle diameter of 0.5-1.5 cm and is formed from a bacteria-entrapping solution, a manganese sand filter material, modified bentonite, and biochar at a mass ratio of 1:0.2-0.4:0.2-0.4:0.1-0.2 by a series of processes including strain culturing, catalysis, mixing, solidification, and the like. The medium material can remove phenol from groundwater, is a safe and environment-friendly material, has a long service life, and/or achieves waste treatment with waste.Type: ApplicationFiled: March 19, 2020Publication date: October 1, 2020Inventors: Yonghai JIANG, Xinying LIAN, Beidou XI, Yu YANG, Yongfeng JIA, Fu XIA, Xu HAN
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Publication number: 20190152815Abstract: A remediation system based on pollution obstruction for underground water with DNAPL pollutant is provided, including a vertical obstructing wall, a pump-out treating unit and a recharging unit, wherein the vertical obstructing wall is distributed at the periphery of a polluted area to obstruct the polluted underground water in the vertical obstructing wall; the pump-out treating unit includes a plurality of water pumping wells and overground treatment facility that are distributed in the polluted area, the plurality of the water pumping wells are configured to pump the polluted underground water out and sending it into the overground treatment facility so as to be treated; the recharging unit includes a plurality of recharging wells, and water treated by the overground treatment facility is recharged into a target aquifer in the polluted area by the plurality of the recharging wells. A remediation method using the system is provided.Type: ApplicationFiled: November 20, 2018Publication date: May 23, 2019Applicant: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCESInventors: Yonghai JIANG, Yu YANG, Beidou XI, Xinying LIAN, Huan XUN, Fu XIA, Yongfeng JIA, Xu HAN