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公开(公告)号：US11535543B2
公开(公告)日：2022-12-27
申请号：US16823330
申请日：2020-03-19
发明人： Yonghai Jiang , Xinying Lian , Beidou Xi , Yu Yang , Yongfeng Jia , Fu Xia , Xu Han
IPC分类号： C02F3/34 , C12N5/00 , C12N1/20 , C12N11/00 , C02F101/34 , C02F103/06
摘要： 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.
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公开(公告)号：US11420194B2
公开(公告)日：2022-08-23
申请号：US16840357
申请日：2020-04-04
发明人： Xiaosong He , Beidou Xi , Jun Cui
IPC分类号： B01J35/00 , B01J23/30 , B01J35/02 , B01J37/02 , B01J37/04 , C02F1/72 , C02F101/10 , C02F101/30 , C02F103/06
摘要： A visible light catalyst, its preparation method, a visible light catalyst activated persulfate system and its use. The visible light catalyst includes a carbon material, a transition metal compound and a coating material. The carbon material is conductive carbon material, and the transition metal compound is selected from one or more of transition metal oxides, transition metal sulfides, and acid or salt compounds containing a transition metal. The visible light catalyst has high visible light photocatalytic activity and performance of degrading organic pollutants and activating persulfate which can result in synergistically degrading degradation-resistant organic pollutants.
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公开(公告)号：US11174184B2
公开(公告)日：2021-11-16
申请号：US16770819
申请日：2018-12-12
发明人： Beidou Xi , Lei Wang , Jinsheng Wang , Wenbing Tan , Tongtong Li , Yangyang Wang , Hui Liu , Ruyue Yang , Yali Zhang , Feng Wu
IPC分类号： C02F9/00 , C02F1/28 , C02F3/30 , C02F3/32 , C02F3/34 , C02F101/10 , C02F101/20 , C02F101/30
摘要： The present invention relates to a method and a device for controlling pollutants in basin water used for irrigating farmland in extremely water-scarce areas. The device includes an alternate vertical flow constructed wetland, which is constructed 4-10 m far from basin revetment. After feeding basin water into the constructed wetland, pollutants, such as heavy metals, nitrogen, phosphorus and organic matters, are adsorbed or degraded through the constructed wetland, and then the treated basin water is transported to the farmland.
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4.发明公开公开(公告)号：US20240351005A1
公开(公告)日：2024-10-24
申请号：US18503234
申请日：2023-11-07
CPC分类号： B01J23/34 , B01J35/23 , B01J37/031 , B01J37/04 , C01G45/1214 , C02F1/722 , C02F1/725 , C01P2002/54 , C01P2004/03 , C01P2004/16 , C02F2101/38 , C02F2103/06
摘要： Provided are a silicate modified manganese-based material and a preparation method and application thereof. The silicate modified manganese-based material has a nanoscale needle like structure, and is prepared from a solution containing a manganese source and a soluble silicate source through an oxidation-reduction reaction and then a hydrothermal reaction. The manganese source includes a divalent manganese source and a heptavalent manganese source, with Mn (II) and Mn (VII) in a molar ratio of 0.5-5.5 to 1. The present disclosure uses silicate to regulate manganese oxides, significantly reducing the particle size of the manganese-based material, generating manganese vacancies, and changing the surface manganese valence state. An advanced oxidation system formed by the silicate modified manganese-based material and an oxidant has high removal rate and reaction rate for various organic compounds.
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公开(公告)号：US11993527B2
公开(公告)日：2024-05-28
申请号：US17039883
申请日：2020-09-30
发明人： Shouliang Huo , Jingtian Zhang , Beidou Xi , Chunzi Ma , Xiaochuang Li
CPC分类号： C02F3/34 , C02F11/008 , C02F11/02 , C12N1/20 , C02F2103/007
摘要： An immobilized microbial agent for in situ restoration of contaminated sediments, composed of Hangjin clay 2 #-loaded conductive microorganisms, obtained by the following methods: 1) pretreating Hangjin clay 2 # to obtain particulate filler; 2) amplification culture of conductive microorganisms to a bacterial liquid to be inoculated, and adding the Hangjin clay 2 # pretreated in step 1 in a certain ratio, mixing under anaerobic conditions, removing the supernatant after standing, and obtaining the immobilized microbial agent; the conductive microorganisms are Geobacter sulfurreducens, Geobacter metallireducens and Shewanella. The invention also discloses a method for preparing the immobilized microbial agent and the application of in situ restoration of contaminated sediments.
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公开(公告)号：US20220099650A1
公开(公告)日：2022-03-31
申请号：US17039073
申请日：2020-09-30
发明人： Juan Li , Beidou Xi , Yang Yang , Jun Tang , Yang Wang , Shunguo Bai , Junxiang Shi , Lei Chen
摘要： The present invention belongs to the technical field of warning for petroleum pollution, and particularly provides an early warning method for vadose zone and groundwater pollution in a contaminated site. The present invention can monitor and analyze the conductivity and water content of pore water in a vadose zone in real time and determine the pollution level according to a parameter variation and an analysis on collected samples; and furthermore, the present invention can give multi-level early warnings before groundwater is polluted, accurately determine the pollution level, and provide corresponding measures in time.
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公开(公告)号：US11261115B2
公开(公告)日：2022-03-01
申请号：US16770800
申请日：2018-12-12
发明人： Lei Wang , Beidou Xi , Jinsheng Wang , Wenbing Tan , Tongtong Li , Yangyang Wang , Hui Liu , Yali Zhang , Feng Wu , Qian Zhang
IPC分类号： C02F9/00 , C02F1/28 , C02F1/32 , C02F1/72 , C02F3/12 , C02F3/28 , C02F3/30 , C02F3/32 , C02F3/34 , C02F101/20 , C02F101/30 , C02F103/00
摘要： The present invention relates to a method and a device for controlling pollutants in basin water resources cycling utilization in agricultural activity areas. The method includes: providing an acidification tank, an aeration tank and a multi-media constructed wetland connected in sequence, which are 4˜10 m far from basin revetment, feeding basin water into the constructed wetland, adsorbing or degrading heavy metals and organic pollutants by the constructed wetland, and then transporting the treated basin water to the agricultural activity areas. The present invention effectively controls the content of heavy metals that will enter the agricultural activity areas, fundamentally reduces the content of heavy metals in the crops, promotes the growth of the crops, maintains sustainable and healthy development of agriculture, and therefore guarantees human health and safety.
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8.发明授权公开(公告)号：US11225422B2
公开(公告)日：2022-01-18
申请号：US16887556
申请日：2020-05-29
发明人： Yonghai Jiang , Yongfeng Jia , Beidou Xi , Xinying Lian , Yu Yang , Xiangjian Xu , Fan Feng
IPC分类号： C02F1/52 , G01N27/00 , C02F1/00 , C02F103/06
摘要： 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.
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公开(公告)号：US20210216681A1
公开(公告)日：2021-07-15
申请号：US17060937
申请日：2020-10-01
申请人： Technical Centre for Soil, Agricultural&Rural Ecology&Environment, Ministry of Ecology&Environment , Chinese Research Academy of Environmental Sciences
发明人： Juan Li , Yang Yang , Beidou Xi , Ying Wang , Junxiang Shi , Yang Wang , Haojie Lu , Jun Tang , Ningqing LV
IPC分类号： G06F30/20
摘要： The present disclosure discloses a method for designing SVE process parameters in a petroleum-type polluted field. The method includes the steps of: first step, clarifying the conditions of the field and the petroleum-type pollution; second step, by referring to field parameters, pollution parameters and SVE process parameters, establishing an SVE remediation model by using a TOUGH software and obtaining remediation rates; the third step, by using the method of grey correlation degree, screening p main control factors; fifth step, performing fitting verification to the results of simulation according to a multi-variable equation of linear regression, and judging whether the simulation accuracy satisfies design requirements; and sixth step, screening an optimum combination of the SVE process parameters and applying the combination.
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公开(公告)号：US10999141B2
公开(公告)日：2021-05-04
申请号：US16849389
申请日：2020-04-15
发明人： Jing Su , Yuanyuan Sun , Beidou Xi , Mao Lin , Juan Li , Mingxia Zheng , Danfeng Ji , Chang Liu
IPC分类号： G06F15/173 , H04L12/24 , G01N33/18
摘要： 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.
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