Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Method for judging and early warning outbreak potential of water bloom of water body

A water body and potential technology, applied in the direction of testing water, material inspection products, etc., can solve the problems of emitting odor, affecting the living environment and living environment of urban residents, changing dissolved oxygen in water bodies, etc., and achieves high measurement frequency and speed. Comprehensive Strong, predictable effects

Inactive Publication Date: 2010-05-12
TSINGHUA UNIV +1
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to economic development, urban domestic sewage, and agricultural sewage, the degree of eutrophication in urban water bodies, especially landscape water bodies, is getting higher and higher, while the water volume and flow rate are getting lower and lower, resulting in a large number of algae growth and reproduction, and even The formation of algae blooms will change the dissolved oxygen, pH, and toxin content of the water body, emit odor, endanger the use function and landscape effect of the water body, and seriously affect the living environment and living environment of urban residents, as well as the survival of urban aquatic animals and plants surroundings

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 judging and early warning outbreak potential of water bloom of water body
  • Method for judging and early warning outbreak potential of water bloom of water body
  • Method for judging and early warning outbreak potential of water bloom of water body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Install the online dissolved oxygen meter in the water body to obtain the real-time value of dissolved oxygen in the water body. The dissolved oxygen value is represented by DO value. Installed in areas where the water flow is relatively slow and easy to form stagnation, the probe is placed 5.0cm below the water surface; the water body is an artificial landscape water body with a water surface area of ​​several hundred square meters and an average depth of 1.2 meters. The DO value of the water body is within one day. Changes such as figure 1 As shown, among them, the maximum DO value is 8.8mg / L, the minimum value is 6.5mg / L, and the ΔDO value is 2.3mg / L. According to the early warning rules, a primary alarm is issued, indicating that there are few algae in the water body and algal blooms will occur in a short period of time. less likely. On that day, the transparency of the lake water was greater than 1.2m, and the density of algae was less than 1×10 4 / L, and there w...

Embodiment 2

[0036] Install the online dissolved oxygen meter in the water body to obtain the real-time value of dissolved oxygen in the water body. The dissolved oxygen value is represented by DO value. Installed in areas where the water flow is relatively slow and prone to stagnation, the probe is placed 4.5cm below the water surface; the water body is an artificial landscape water body with a water surface area of ​​several hundred square meters and an average depth of 1.2 meters. The DO value of the water body is within one day. Changes such as figure 2 As shown, among them, the maximum DO value is 17.86mg / L, the minimum value is 13.89mg / L, and the ΔDO value is 3.97mg / L. According to the early warning rules, a medium-level alarm is issued, indicating that the algae content in the water body is moderate, and the algae outbreak will occur in a short period of time. Moderate potential. In fact, the transparency of the lake was greater than 1.2m on that day, and the density of algae was ...

Embodiment 3

[0038] Install the online dissolved oxygen meter in the water body to obtain the real-time value of dissolved oxygen in the water body. The dissolved oxygen value is represented by DO value. Installed in areas where the water flow is relatively slow and prone to stagnation, the probe is placed 4.5cm below the water surface; the water body is an artificial landscape water body with a water surface area of ​​several hundred square meters and an average depth of 1.2 meters. The DO value of the water body is within one day. Changes such as image 3 As shown, among them, the maximum DO value is 17.47mg / L, the minimum value is 12.69mg / L, and the ΔDO value is 4.78mg / L. Therefore, a high-level alarm should be issued, indicating that there are more algae in the water body, and the outbreak of algal blooms in a short period of time Potential is high. In fact, the transparency of the lake water was about 1.0m on that day, and the density of algae was about 8.6×10 7 individual / L, green ...

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 method for judging and early warning outbreak potential of water bloom of a water body and belongs to the technical field of water environmental protection. The method comprises the following steps of: placing on-line dissolved oxygen monitoring equipment in the water body to obtain a real-time value, which is expressed by a DO value, of the dissolved oxygen in the water body, and judging the outbreak potential of the water bloom of the water body according to the deltaDO value and giving out the early warning, wherein the deltaDO value is the difference between the maximum value and the minimum value of the DO values of the water body within 24 hours, and the outbreak potential of the water bloom increases along with the increase of the deltaDO value. The method has the advantages that: the method is simple and quick, uses the on-line measurement of the on-line dissolved oxygen instrument, can replace the methods of alga counting, chlorophyll measurement and the like, which are complex, time consuming and expensive, and has quite high measurement frequency and speed; by analyzing indexes of the deltaDO value, overall growing conditions of alga in the water body are effectively shown, not only aiming at one special kind of algae; and the method is strong in real-time property and foreseeability.

Description

technical field [0001] The invention belongs to the technical field of water environment protection, in particular to a method for judging and early warning of the outbreak potential of algal blooms in a water body. Background technique [0002] Urban water bodies, including rivers, lakes, reservoirs, artificial lakes, artificial waterscapes, drinking water intakes, etc., are an important part of the urban water system and an important part of the urban ecosystem, providing urban residents with water sources, landscapes, leisure A place for entertainment also provides environmental conditions for the reproduction and habitat of aquatic plants and aquatic animals. However, due to economic development, urban domestic sewage, and agricultural sewage, the degree of eutrophication in urban water bodies, especially landscape water bodies, is getting higher and higher, while the water volume and flow rate are getting lower and lower, resulting in a large number of algae growth 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
IPC IPC(8): G01N33/18
Inventor 周律李涛刘晶晶赵珊周军甘一萍
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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