Silver carp and hyriopsis cumingii combined algae-controlling method

A technology of triangular sail clam and silver carp, applied in the field of joint control of algae growth in eutrophic water bodies, can solve the problems of low recovery rate of indigenous aquatic plants, low success rate, invasion of alien species, etc., and achieve the total level of control of algae , There is no secondary pollution, and the effect of reducing eutrophication

Inactive Publication Date: 2008-05-28
NANKAI UNIV
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among these methods, the chemical method is quick to remove algae, but the use of chemicals is easy to cause secondary pollution and residual effects
Physical methods are often time-consuming and costly
Among the biological methods, the planting of aquatic plants may cause the invasion of alien species, such as water hyacinth, which is difficult to control, while the recovery rate of indigenous aquatic plants in eutrophic water bodies has not been high; the use of microbial agents to control algae has certain health risks and ecological risk
The classic biological manipulation method adopted abroad removes zooplankton-eating fis...

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] In this embodiment, the stocking density of silver carp in eutrophic water body is 45g / m 3 , the stocking density of triangular sailfish is 40g / m 3 . The weight of a single tail of silver carp is 90-300g, and that of a triangular sail clam is 50-450g. After the silver carp and trigonophylla are put in, regularly check the changes in algae concentration and dead fish in the water body. If silver carp dies, add live silver carp of the same weight in time; if the number of large algae in the water body increases, Then add a proper amount of silver carp to the water body to increase its stocking density and inhibit the growth of macroalgae; if the number of small algae in the water body increases, add triangular sail clams to the water body to increase its stocking density, inhibit small algae, and then regularly Check maintenance.

Embodiment 2

[0019] In this embodiment, the stocking density of silver carp in eutrophic water body is 70g / m 3 , the stocking density of triangular sailfish is 55g / m 3 . The weight of a single tail of silver carp is 90-300g, and that of a triangular sail clam is 50-450g. After the silver carp and trigonophylla are put in, regularly check the changes in algae concentration and dead fish in the water body. If silver carp dies, add live silver carp of the same weight in time; if the number of large algae in the water body increases, Then add a proper amount of silver carp to the water body to increase its stocking density and inhibit the growth of macroalgae; if the number of small algae in the water body increases, add triangular sail clams to the water body to increase its stocking density, inhibit small algae, and then regularly Check maintenance.

Embodiment 3

[0021] In this embodiment, the stocking density of silver carp in eutrophic water body is 95g / m 3 , the stocking density of triangular sailfish is 70g / m 3 . The weight of a single tail of silver carp is 90-300g, and that of a triangular sail clam is 50-450g. After the silver carp and trigonophylla are put in, regularly check the changes in algae concentration and dead fish in the water body. If silver carp dies, add live silver carp of the same weight in time; if the number of large algae in the water body increases, Then add an appropriate amount of silver carp to the water body to increase its stocking density and inhibit the growth of macroalgae; if the number of small algae in the water body increases, add triangular sailfish to the water body to increase its stocking density and inhibit the microalgae. Regular inspection and maintenance.

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 biological combination control technical method of alga growth in eutrophic water bodies; the method is also applicable to water works and water source plants for controlling alga in source water. Chub and hyriopsis cumingii are bred in the eutrophic water bodies by the method; density of the chub in the eutrophic water bodies is 45 to 95 g/m<3>, and weight per chub is 90 to 300g; density of the hyriopsis cumingii in the eutrophic water bodies is 40 to 70 g/m<3>, and weight per hyriopsis cumingii is 50 to 450g. Compared with the existing alga control method, the invention has the advantages of low cost, simple operation, lasting effect, having no secondary pollution and no ecological risks caused by invasive species. Meanwhile, some nutritive salts are taken out of the water bodies by harvesting chubs and hyriopsis cumingiies, and certain economic benefits can be produced.

Description

technical field [0001] The invention relates to a technical method for jointly controlling the growth of algae in eutrophic water bodies, which can also be used for controlling algae in water sources in waterworks. Background technique [0002] The algal blooms caused by eutrophication of water bodies have become a problem that plagues many lakes and reservoirs in my country, especially for water sources. Excessive algae concentrations in water bodies not only cause damage to local ecosystems, but also cause damage to downstream water plants. Water treatment poses a huge burden. At present, the methods of algae control at home and abroad mainly include: (1) chemical method: such as adding chemical agents to remove algae; (2) physical method: such as mechanical algae removal, dredging sediment, dilution and washing, etc.; Plant large aquatic plants, release microbial agents, biological manipulation, etc. Among these methods, the chemical method is quick to remove algae, but ...

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): C02F3/32A01K61/00
CPCY02A40/81Y02A90/40
Inventor 王启山王嵩张丽彬王金鑫李建平戴永康
Owner NANKAI 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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap