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

Grass carp, cladophora and daphnia hyaline multi-biology cooperated algae control method

A technology for hair algae and grass carp, applied in the field of algae content, can solve the problems of many by-products and high operating costs

Inactive Publication Date: 2007-09-19
HARBIN INST OF TECH
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of high operating cost and many by-products in the existing algae control methods, and provide a method for synergistic algae control of grass carp, Cladophora and hyaline multi-organisms

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

specific Embodiment approach 1

[0005] Specific embodiment 1: The method of this embodiment is: putting grass carp in a eutrophic water body, the amount of grass carp is 20-100g per cubic meter of water, and the weight of a single tail of grass carp is 20-100g; placing the grass carp in the water body where the grass carp is put Floating cages, open net cages made of stainless steel wire mesh with a hole diameter of 4-6mm, floating net cages with a length×width×height dimension of 1~2m×1~2m×1~2m, floating net The four corners of the upper and bottom of the box are fixed with floats so that the side wall of the floating cage is 0.2~0.4m above the water surface. Two pieces of nylon wire mesh parallel to the side walls and perpendicular to the upper and lower bottoms are fixed inside the floating cage. The left and right sides and bottom of the nylon mesh are sewn together with the side walls and bottom of the floating cage respectively. The distance between the two pieces of nylon mesh and the side walls of the fl...

specific Embodiment approach 2

[0006] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the amount of grass carp in the eutrophic water body is 25~55g / m 3 . The other methods are the same as in the first embodiment.

specific Embodiment approach 3

[0007] Specific embodiment three: This embodiment is different from specific embodiment one in that the amount of grass carp in the eutrophic water body is 30-50g / m 3 . The other methods are the same as in the first embodiment.

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 present invention relates to a method of cooperative control of alga in a water body comprising grass carp, cladophora and daphnia hyaline, which relates to a water treatment method and solves the problem of high operating cost and much of the by-products of the current alga control method. In the present invention grass carp is cultured in eutrophication water body with a culturing density of 20~100 g / m<3> and a single weight of 20~100 g; a floating net cage is arranged in the eutrophication water body, which is an open net cage made from stainless wire net having an aperture of 4~6 mm, besides, the four corners of the upper bottom of the floating net cage are provided with floater, by which the side walls of the floating net cage can overtop the water level by 0.2~0.4 m. The present invention is simple and easy, and can reduce the alga content and the trophic level in raw water of water plant effectively so as to solve the problem of that the eutrophication high algae-laden raw water affects the conventional treatment in current water plant, to reduce the cost and improve the water quality. The present invention make the best of the food habit difference between grass carp and daphnia hyaline, and comparing with the prior art, the present invention is simple and easy, economy and shortcut, and has high efficiency and convenient operation.

Description

Technical field [0001] The invention relates to a water treatment method, in particular to a method for synergistically controlling the content of algae in the eutrophic raw water of a water plant by using multiple freshwater aquatic organisms. Background technique [0002] Water body eutrophication is the water body effect caused by the excessive input of nutrients such as nitrogen and phosphorus. It is mainly manifested by the excessive growth of algae in the water. At the same time, it is accompanied by a series of water quality and ecological changes, resulting in a decrease in water transparency and deterioration of water quality. The eutrophic raw water greatly affects the normal production of water plants. [0003] Among the existing algae removal methods, there are chemical methods using strong oxidants and algaecides as algae removal methods, as well as physical and chemical methods represented by air flotation, and physical methods such as microfiltration and membrane f...

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): C02F3/00C02F3/32
CPCY02W10/37
Inventor 崔福义范振强马华何文杰阴沛军王振江贾柏樱
Owner HARBIN INST OF TECH
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