公开(公告)号：US11713253B2

公开(公告)日：2023-08-01

申请号：US17412893

申请日：2021-08-26

Applicant: NANJING HYDRAULIC RESEARCH INSTITUTE

Inventor： Qiuwen Chen ,  Hanlu Yan ,  Jianyun Zhang ,  Xueke Liao ,  Tianqi Yao ,  Zhiyuan Wang ,  Cheng Chen

IPC: C01F7/785 ,  C02F1/28 ,  C02F101/36

CPC classification number: C01F7/785 ,  C02F1/288 ,  C01P2002/22 ,  C01P2002/85 ,  C01P2004/62 ,  C01P2004/64 ,  C02F1/281 ,  C02F2101/36 ,  C02F2305/08

Abstract: It discloses a method for preparing a magnesium-aluminum hydrotalcite-loaded nano zero-valent iron material for specifically removing perfluorooctanoic acid in a water environment and an optimized process for removing perfluorooctanoic acid thereby, and relates to the technical field of removing persistent organic pollutants in water using adsorption method and oxidation-reduction method and, in particular, to a composite material prepared by loading a nano zero-valent iron on magnesium-aluminum hydrotalcite using liquid phase reduction method.

公开(公告)号：US20230385490A1

公开(公告)日：2023-11-30

申请号：US18323363

申请日：2023-05-24

Applicant: NANJING HYDRAULIC RESEARCH INSTITUTE

Inventor： Junliang Jin ,  Zhangkang Shu ,  Jianyun Zhang ,  Lin Wang ,  Guoqing Wang ,  Zhenxin Bao ,  Yanli Liu ,  Cuishan Liu ,  Ruimin He ,  Qiuwen Chen ,  Zhiyuan Wang

IPC: G06F30/28

CPC classification number: G06F30/28 ,  G06F2111/06

Abstract: The present invention discloses a hydrological model considering the uncertainty of a runoff production structure and a method for quantifying influence on a surface-subsurface hydrological process. The present invention quantifies the uncertainty of runoff production structures including a surface runoff structure, an interflow structure and a base flow structure by using parameters, and constructs a hydrological model considering the uncertainty of a runoff production structure by combining an added confluence module. Compared with an original hydrological model, the hydrological model has higher precision, which is capable to quantify the uncertainty of surface runoff, interflow and base flow of the runoff production structure and its impact on the surface-subsurface hydrological process, better improve precision of runoff simulation, and enhance understanding and cognition of the basic rule of a hydrological physical process.

公开(公告)号：US10794887B2

公开(公告)日：2020-10-06

申请号：US16297454

申请日：2019-03-08

Applicant: Nanjing Hydraulic Research Institute

Inventor： Qiuwen Chen ,  Juhua Yu ,  Jianyun Zhang ,  Wenyong Yu ,  Wenqing Shi ,  Yuqing Lin ,  Liuming Hu ,  Zhiyuan Wang

IPC: G01N1/10 ,  G01N1/08 ,  G01N33/18 ,  G01N35/04 ,  G01N1/16

Abstract: An ultra-deep reservoir stratified water sample and sediment core integrated artificial intelligence sampling device, comprising a sampling device main chamber, an attitude balance sensor, a propeller, a balance base, and a sampler body, wherein the attitude balance sensor and the sampler body are disposed inside the sampling device main chamber; the propeller is disposed outside the sampling device main chamber; and the balance base is located at a bottom end of the sampling device main chamber. The sampling device of the present invention is an intelligent sampling device integrating high-definition underwater topography observation, undisturbed sediment core collection, vertical stratified accurate sampling of water bodies, and real-time in-situ monitoring of key physical and chemical parameters, and can be flexibly applied to deep and shallow water environments under complicated conditions.

公开(公告)号：US20220234906A1

公开(公告)日：2022-07-28

申请号：US17412893

申请日：2021-08-26

Applicant: NANJING HYDRAULIC RESEARCH INSTITUTE

Inventor： Qiuwen Chen ,  Hanlu Yan ,  Jianyun Zhang ,  Xueke Liao ,  Tianqi Yao ,  Zhiyuan Wang ,  Cheng Chen

IPC: C01F7/00 ,  C02F1/28

Abstract: It discloses a method for preparing a magnesium-aluminum hydrotalcite-loaded nano zero-valent iron material for specifically removing perfluorooctanoic acid in a water environment and an optimized process for removing perfluorooctanoic acid thereby, and relates to the technical field of removing persistent organic pollutants in water using adsorption method and oxidation-reduction method and, in particular, to a composite material prepared by loading a nano zero-valent iron on magnesium-aluminum hydrotalcite using liquid phase reduction method.