Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Drainage basin non-point source pollutant transport simulation test device and drainage basin non-point source pollutant transport simulation test method

A simulation test and pollutant technology, applied in the field of water pollutant transport research, can solve the problems of unclear influence mechanism of pollutant excretion concentration and transport time length, and inability to obtain tracer transport time, etc.

Active Publication Date: 2022-07-29
HOHAI UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic research on the transport process of non-point source pollutants in river basins is still immature, mainly because the impact mechanism of pollutant excretion concentration and transport time is unclear
Among the existing test devices for the transport process of non-point source pollutants in watersheds, CN102520131A discloses a groundwater pollution simulator based on a multi-layer aquifer groundwater flow system, although it can observe the migration of tracers in the aquifer status, but the lack of real-time monitoring of the tracer excretion concentration and the infusion time of the tracer cannot be obtained

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Drainage basin non-point source pollutant transport simulation test device and drainage basin non-point source pollutant transport simulation test method
  • Drainage basin non-point source pollutant transport simulation test device and drainage basin non-point source pollutant transport simulation test method
  • Drainage basin non-point source pollutant transport simulation test device and drainage basin non-point source pollutant transport simulation test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] like figure 1 As shown, a watershed non-point source pollutant transport simulation test device includes a sand box 1, and the sand box 1 is a rectangular steel sand box, and the length×width×height is 2m×0.5m×1m. The inside of the flask 1 is coated with an aliphatic polyurethane finish (DuralDeck), which forms a non-corrosive surface in contact with the soil material. A porous plastic plate 4 is arranged on the downstream boundary (ie, the place where water flows out from the inside of the flask 1). The porous plastic plate 4 has a total porosity of 14% and a pore diameter of 2 mm. The sand box 1 is rotatably arranged on the support frame, the water outlet of the sand box 1 is close to the rotating end, and the support frame is provided with a hydraulic push rod to push the sand box 1 to adjust the gradient α, and the maximum gradient α is 10°. The ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a drainage basin non-point source pollutant transport simulation test device and method, an inlet of a spraying device is provided with an electromagnetic flowmeter, a pressure sensor is arranged below a sand box, a water outlet is connected with a tipping-bucket rain gauge through a pipeline, a conductivity probe is arranged on the pipeline, and a water level recorder is arranged in the sand box; a tensiometer and a soil humidity sensor are also arranged in the sand box; during testing, rainfall is simulated through a pulse method, precipitation, underground water storage variable, discharge flow, tracer discharge concentration, underground water level and soil moisture content are monitored through a sensor, a change curve of the monitoring variables along with time is generated, and the correlation between the tracer discharge concentration and other monitoring variables is researched based on the change curve; and the underground transportation duration of the tracer agent is calculated through a transient transportation duration distribution theory. According to the method, the influence mechanism of the discharge concentration and the transport duration of the non-point source pollutants can be revealed, the transport duration of the tracer from rainfall to discharge is calculated, and guidance is provided for non-point source pollution prevention and control.

Description

technical field [0001] The invention belongs to the field of water pollutant transport research, and in particular relates to a simulation test device and method for the transport of non-point source pollutants in a river basin. Background technique [0002] The eutrophication of surface water and groundwater caused by excessive discharge of reactive nitrogen has become a major environmental problem. How to describe the transport mechanism of non-point source pollutants in the basin is currently a difficult problem. Domestic research on the transport process of non-point source pollutants in river basins is still immature, mainly because the influence mechanism of pollutant discharge concentration and transport duration is unclear. Among the existing test devices for the transport process of non-point source pollutants in the basin, CN102520131A discloses a groundwater pollution simulator based on a multi-layer aquifer groundwater flow system, although it can observe the tra...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N33/18G01F1/58G01L11/00G01W1/14G01N27/06G01F23/00G01N33/24
CPCG01N33/18G01F1/58G01L11/00G01W1/14G01N27/06G01F23/00G01N33/246
Inventor 井淼鲁春辉叶逾徐腾谢一凡杨杰
Owner HOHAI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com