Method for inhibiting algae growth by reed

A technology of reeds and algae, which is applied in the field of harmful algae control in natural water bodies, and can solve the problems of loss of water bodies for industrial and agricultural utilization, landscape, breeding, etc.

Inactive Publication Date: 2006-07-12
TSINGHUA UNIV
View PDF1 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The eutrophication of the water body leads to the growth of algae, which makes the water b

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 inhibiting algae growth by reed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] 0.2 kilograms of reeds were soaked in 400 milliliters of deionized water for 7 days and filtered, and the filtrate was concentrated to 100 milliliters. Take concentrated solution 1, 2, 3, 4, 5 milliliters and add respectively in 200 milliliters Microcystis aeruginosa culture liquid, after cultivating for 5 days, inhibition rate is respectively 42%, 78%, 94%, 97%, 99%.

[0014] Such as figure 1 As shown, the curves indicate that adding concentrates 1, 2, 3, 4 and 5 milliliters to 200 milliliters of algae culture solution respectively, after cultivating for 5 days, the inhibition rates were 42%, 78%, 94%, 97%, and 99%, respectively. It shows that the growth of algae has been substantially completely inhibited at 4 milliliters.

Embodiment 2

[0016] After 1 kg of reed was extracted with 2 liters of ethanol for 12 hours, 5 milliliters of the obtained extract was added to 200 milliliters of chlorella culture solution. After 5 days, the algae density was only 3% of that of the control group, that is, the inhibition rate was 97%.

[0017] After 1 kg of reed was extracted with 2 liters of ethanol for 48 hours, 5 milliliters of the obtained extract was added to 200 milliliters of chlorella culture solution. After 5 days, the density of algae was only 2.5% of that of the control group, that is, the inhibition rate was 97.5%.

[0018] After 1 kg of reed was extracted with 5 liters of ethanol for 12 hours, 5 milliliters of the obtained extract was added to 200 milliliters of chlorella culture solution. After 5 days, the density of algae was only 21% of that of the control group, that is, the inhibition rate was 79%.

[0019] After 1 kg of reed was extracted with 5 liters of ethanol for 48 hours, 5 milliliters of the obtained...

Embodiment 3

[0021] Bundle 15 grams of reeds into small bundles, put them into 3 liters of algae culture solution, and cultivate them under natural light and 25°C for 3 days, the density of chlorella is only 4% of that of the control group, that is, the inhibition rate is 96%. After the algae are suppressed, the reeds are taken out to avoid secondary pollution caused by the rotten reeds.

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

A method of inhibiting algae growth by using reed, belonging to water treating field, binding the reed plants or preparing reed powder, then loading to the nylon pocket, putting to the pretreated water body to inhibit the algae growth in water; after the algae growth is inhibited, getting the nylon basket out of water to prevent second pollution. The method is characterized by the good effect of algae inhibiting, low price of the material, ease to get, control, and ecological safety.

Description

[0001] This patent application is a divisional application of the original patent application "Application of Reed as Algae Inhibition Material" (application date is November 7, 2003, application number is 200310103192.0). technical field [0002] The invention belongs to the field of water treatment, in particular to a new method for controlling harmful algae in natural water bodies. Background technique [0003] Eutrophication of water body is the main reason for the deterioration of water environment. The eutrophication of the water body leads to the growth of algae, which makes the water body lose its functions such as industrial and agricultural utilization, landscape, and breeding. Existing anti-algae technology mainly utilizes copper ions (Cu 2+ ) herbicides to kill algae. However, copper ions cannot be degraded in water bodies, and will be transmitted in the ecosystem through the food chain, and the higher the trophic level, the higher the concentration of copper i...

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): A01N65/00A01P13/00A01N65/44
Inventor 胡洪营李锋民
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
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