Test methods for simulating sediment pollutant release under effect of river channel erosion

US11821885B2 · kind B2 · utility

Assignees

• TIANJIN PORT ENGINEERING INSTITUTE CO., LTD. OF CCCC FIRST HARBOR ENGINEERING CO., LTD. · CN
• CCCC FIRST HARBOR ENGINEERING CO., LTD. · CN
• TIANJIN PORT ENGINEERING QUALITY TESTING CENTER CO., LTD. · CN
• CHANGJIANG WUHAN WATERWAY ENGINEERING COMPANY · CN

Inventors

• Zhichao Dong · Tianjin, CN
• Danzhong Liu · 红钢城街道, CN
• Jinfang Hou · Tianjin, CN
• Aimin Liu · Beijing, CN
• Binbin Xu · Xi'an, CN

Key dates

• Filing date: Feb 8, 2023
• Grant date: Nov 21, 2023
• Expiry date: Feb 8, 2043

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N33/24
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The disclosure discloses a test method for simulating sediment pollutant release under the effect of river channel erosion, which comprises preparing a test device, presetting a water depth and a flow velocity in a test water tank, and calculating a flow rate in the test water tank; paving the sediment in a sediment storage box, and covering an upper surface of the sediment with a water baffle; adding water into the test water tank until a preset water depth, starting a variable speed motor to drive a flow-making propeller to run to make the flow rate reach the required flow rate and keep the flow velocity constant; after the water flow becomes constant, the water baffle retracting to expose the surface of the sediment; opening sampling ports for layered sampling; measuring water; and respectively measuring concentration variation and vertical distribution features of sediment pollutant under different simulated power conditions.