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

Method for controlling water bloom of branch of river-type reservoir based on water level regulation

A technology of water level adjustment and tributary flow, applied in water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve problems such as ineffective control and inability to effectively control water body algal blooms, etc., to achieve implementation Simple, strong operability and practicality, fast monitoring and evaluation of the effect

Inactive Publication Date: 2011-03-02
CHINA THREE GORGES UNIV
View PDF1 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pollution control is a long-term project, and the effect is not obvious in a short period of time; the current reservoir scheduling method can only guarantee traditional benefits such as flood control, power generation, navigation, and water replenishment, and cannot effectively control algal blooms in some water bodies

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 controlling water bloom of branch of river-type reservoir based on water level regulation
  • Method for controlling water bloom of branch of river-type reservoir based on water level regulation
  • Method for controlling water bloom of branch of river-type reservoir based on water level regulation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Taking the Three Gorges Reservoir as an example to illustrate the steps to control the occurrence of algal blooms in the tributaries of river-type reservoirs through water level regulation:

[0017] figure 1 It is a routine control scheme for the water level of the Three Gorges Reservoir. During the normal operation period of the Three Gorges Reservoir, starting from January 1, the Three Gorges Reservoir will start to discharge water from the normal storage level of 1, which is 175 meters, according to the actual situation. While considering power generation, the following are mainly used Swimming for ecological replenishment. By the end of March, the water level of the reservoir has dropped to the lowest water level of 2 in the dry season, which is 155 meters. The water will be released before the flood in early May, and it will drop to the flood control limit water level of 3, which is 145 meters, in mid-September. Water storage began in the second half of the year af...

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 relates to a method for controlling the water bloom of a branch of a river-type reservoir based on water level regulation. Based on the conventional water level scheduling scheme of the river-type reservoir, tide type scheduling is used in spring and summer, advancing impoundment type scheduling is used in autumn, and low-alga, uniformly blended and high-silt content water body is urged to flow into the branch from the principal river of the reservoir by increasing the strength and the range of influence of branch density current in the branch, so that the original distribution patterns of hydrodynamic force, nutritive salt and water bloom space in the branch can be broken, the vertical water body mixing degree can be increased, the thickness of the euphotic layer can be reduced, the flow rate of the branch can be quickened, and the detention time of the branch water body can be shortened, thereby achieving the purpose of controlling the outbreak of the branch water bloom or controlling the outbreak region. The invention can maintain the traditional benefits of the reservoir, such as flood control, power generation, navigation, water compensation and the like, and can achieve the ecological benefit of controlling the branch water bloom. Besides, the invention avoids the disadvantages of the traditional method for controlling the eutrophication of the water body, has the advantages of easy implementation and fast action, realizes fast monitoring and evaluation, and has high operability and applicability.

Description

technical field [0001] The invention relates to a method for controlling the occurrence of algal blooms in a water body, in particular to a method for controlling the occurrence of algal blooms in tributary streams of river-type reservoirs through water level regulation. Background technique [0002] At present, river-type reservoirs represented by the Three Gorges Reservoir have high pollution load discharges. After the reservoirs are impounded, the flow rate slows down, the water exchange capacity is weakened, and the problem of eutrophication (“bloom”) in some water bodies appears, and the safety of drinking water is affected. threaten. The eutrophication of water bodies in river-type reservoirs has attracted widespread attention at home and abroad. It is related to ensuring the health of the reservoir ecosystem, realizing the maximum value of its ecosystem services, and finally realizing the sustainable development of the ecosystem in the reservoir area. A matter of nat...

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): C02F1/00E02B3/00
CPCY02A10/11
Inventor 刘德富杨正健纪道斌黄钰铃马骏刘流孔松王从锋
Owner CHINA THREE GORGES 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