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

Method for analyzing sediment source nitrogen and phosphorus in-river load through real-time monitoring and CSSI technology

A real-time monitoring and sediment technology, applied in the field of agricultural non-point source pollution monitoring, can solve real-time quantitative analysis and other problems, and achieve the effect of preventing and controlling sediment load

Pending Publication Date: 2022-06-03
GUANGXI UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are problems in the principle of the combination of FRN and CSSI), so the combined FRN-CSSI tracing technology cannot conduct real-time quantitative analysis of the flux process of nitrogen and phosphorus loss from farmland into the surface water system under heavy rainfall conditions

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
  • Method for analyzing sediment source nitrogen and phosphorus in-river load through real-time monitoring and CSSI technology
  • Method for analyzing sediment source nitrogen and phosphorus in-river load through real-time monitoring and CSSI technology
  • Method for analyzing sediment source nitrogen and phosphorus in-river load through real-time monitoring and CSSI technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Taking a certain watershed as an example, in a rainstorm event, a sample of suspended sediment in the estuary was collected. After filtering the sediment, a part was dried at 105°C to calculate the sediment concentration in the runoff, and the other part was dried at 40°C for measurement. Nitrogen and phosphorus content of sediment, sediment nitrogen and sediment phosphorus were determined by Kjeldahl method and HClO, respectively. 4-H 2 SO 4 - Determined by molybdenum blue colorimetric method, combined with real-time monitoring of the watershed to calculate the total load of sediment, nitrogen and phosphorus into the river. The results are shown in Table 1.

[0036] Table 1 The total sediment nitrogen and phosphorus load in the river

[0037]

[0038] The mobile sediment samples of 0-2 cm from farmland, forest land, river banks and road catchment areas in the basin were collected after rain, and suspended sediment samples were collected at the estuary of the basin...

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 belongs to the technical field of agricultural non-point source pollution monitoring, and particularly relates to a method for analyzing sediment source nitrogen and phosphorus in-river load through real-time monitoring and a CSSI technology, and the method comprises the following steps: S1, monitoring the content of nitrogen and phosphorus in runoff sediment at a drainage basin outlet in real time, and determining the total nitrogen and phosphorus in-river load of sediment in the drainage basin; s2, identifying river-entering sediment sources in the drainage basin by applying a CSSI source-tracing technology, and calculating contribution percentages of different land utilization type sediment sources; and S3, quantitatively determining the in-river pollution load of different lands utilizing the nitrogen and phosphorus of the eroded soil by jointly applying real-time monitoring and CSSI sediment tracing. The method can be used for simply, comprehensively, accurately and quantitatively analyzing the river-entering pollution load of different lands utilizing the nitrogen and phosphorus of the eroded soil, and a scientific basis is provided for water ecological management.

Description

technical field [0001] The invention belongs to the technical field of agricultural non-point source pollution monitoring, and in particular relates to a method for real-time monitoring and CSSI technology to analyze the load of nitrogen and phosphorus from sediment sources into rivers. Background technique [0002] Excessive application of nitrogen and phosphorus fertilizers to farmland and soil erosion have become the main contributors to non-point source pollution of global rivers, lakes and other surface water bodies (Ongley et al., 2010; Sun et al., 2012). At present, most studies mainly focus on the loss of soluble nitrogen and phosphorus at the farmland scale and the prevention and control of non-point source pollution by reducing fertilizer application at the source, but little is known about the contribution of soil erosion driven by intensive agricultural production to non-point source pollution of river and lake water (Fissore et al., 2017; Sarapatka et al., 2018)...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F119/06
CPCG06F30/20G06F2119/06
Inventor 李勇黄智刚郭豪
Owner GUANGXI 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