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

A device for simulating the impact of water level changes on the risk of release of nitrogen, phosphorus and heavy metals from sediments

A water level change and sediment technology, applied in the fields of environmental engineering and lake environmental science, can solve problems such as increased difficulty in operation, increased data error, and no occurrence, and achieves the effect of small footprint, low cost, and time-saving operation.

Active Publication Date: 2016-04-06
CHINESE RES ACAD OF ENVIRONMENTAL SCI
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But up to now, there is no experimental device in the prior art that can be used to simulate the release of nitrogen, phosphorus and heavy metals from sediments at different elevations
Although from the perspective of conducting laboratory experiments, to simulate the natural environment of sediments at different elevations, it can be realized by setting up multiple experimental containers with different liquid level heights, but this undoubtedly makes the experimental equipment more complicated. The difficulty will increase accordingly, and the error of the data obtained in the experiment will also increase.

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
  • A device for simulating the impact of water level changes on the risk of release of nitrogen, phosphorus and heavy metals from sediments
  • A device for simulating the impact of water level changes on the risk of release of nitrogen, phosphorus and heavy metals from sediments
  • A device for simulating the impact of water level changes on the risk of release of nitrogen, phosphorus and heavy metals from sediments

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The device for simulating the impact of water level changes on the release risk of sediment nitrogen, phosphorus and heavy metals provided in this example is as follows: figure 1 As shown, a test box 1 is included, and the size of the test box 1 is length × width × height = 2 meters × 2 meters × 2 meters; the test box 1 is made of tempered glass material and is transparent; the test box 1 is provided with five a surface that is in contact with the air;

[0060] A water body on-line detection system 5 is provided in the test chamber 1, and the water body on-line detection system 5 includes a heavy metal detector, a nitrogen and phosphorus detector and a pH / ORP / dissolved oxygen / conductivity / temperature multi-parameter measuring instrument for detecting water bodies Nitrogen concentration, phosphorus concentration, heavy metal concentration and pH value, DO value, Eh value and temperature.

[0061] In the test box 1 and on the bottom surface of the test box 1, five steps ...

Embodiment 2

[0073] The device for simulating the impact of water level changes on the release risk of sediment nitrogen, phosphorus and heavy metals described in this example is as follows: figure 2 As shown, the device described in this embodiment is also provided with on the basis of embodiment 1:

[0074]Particle collection pipe 6, the opening of the particle collection pipe 6 at one end of the particle collection pipe 6 is arranged in the water body in the test chamber 1, and a filter device is connected to the other end of the particle collection pipe 6 and the motor; a baffle plate is arranged at the opening in the water body facing the particle collection pipe 6, and the baffle plate includes a flat plate 13 facing the opening and two plates 13 respectively located at the opening of the water body Side plates 14 on both sides, the two side plates 14 are arranged between the flat plate 13 and the opening, and the two side plates 14 gradually expand outward along the direction from ...

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 device for simulating the impact of water level changes on the release risk of sediment nitrogen, phosphorus and heavy metals according to the present invention is provided with a plurality of steps in the test chamber, and the heights of the plurality of steps are set in gradients. There is a storage tank for depositing sediments; due to the large area of ​​the actual lake and the large fluctuations in the elevation of the sediments, it is impossible to set the elevation gradient change according to the test target in the field, but this device can be set through multiple steps. Efficiently model elevation gradients and water level changes in sediments. At the same time, the simulation device of the present invention is also equipped with an online water body detection system and an air supply pipe, so that the DO content in the water sample can be adjusted to simulate a real water depth environment.

Description

technical field [0001] The invention belongs to the category of lake environmental science and environmental engineering, and specifically relates to a simulation device suitable for studying the influence of lake water level changes on the content, form and biological effectiveness of sediment nitrogen, phosphorus and heavy metals. Background technique [0002] The sediments of lakes are enriched with a large amount of pollutants such as nitrogen, phosphorus, and heavy metals, which are an endogenous source of damage to the lake's water environment. The pollutants enriched in the sediments are easily released from the sediments when the lake water environment changes, thus affecting the lake water quality. Since endogenous pollution is a common problem in most lakes in my country, how to control the endogenous pollution of lakes has become an important topic in the environmental field. It is of great significance to simulate and study the release mechanism of phosphorus and...

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 Patents(China)
IPC IPC(8): G01N33/00G01N33/18
Inventor 王圣瑞倪兆奎席海燕
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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