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Method for inhibiting excessive growth of algae in water body by using masson pine leaves

A masson pine and algae technology, which is applied in chemical instruments and methods, water/sewage treatment, water/sludge/sewage treatment, etc. The effect of good algae effect, simple operation and low price

Active Publication Date: 2015-02-11
BEIJING WATER SCI & TECH INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biological method has good ecological security, but it is often slow to take effect, and the algae removal effect is greatly affected by biological activity

Method used

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  • Method for inhibiting excessive growth of algae in water body by using masson pine leaves
  • Method for inhibiting excessive growth of algae in water body by using masson pine leaves
  • Method for inhibiting excessive growth of algae in water body by using masson pine leaves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1 The inhibition of pine leaf powder to lower density Microcystis

[0021] Wash and dry fresh pine leaves, crush them into powders with a particle size of 40-200 mesh with a pulverizer, and sterilize them with ultraviolet light for 30 minutes to obtain pine leaves powder. Take 0.8g, 0.64g and 0.48g of pine leaf powder, respectively, and add them into 200mL of Microcystis aeruginosa culture solution with an initial density of 20,000 / mL. 1 time a day for 3 consecutive days. The experimental group and the control group each set 3 bottles in parallel. The optical density at 695nm of each bottle of algae liquid was measured every day on the 0-3 day after adding the masson pine leaf powder. On the third day after adding the masson pine powder, the optical density of the algae in the control group increased by 81%, while the optical density of the algae in the test groups decreased by 33%, 26% and 5% respectively compared with the beginning of the test. Compared wit...

Embodiment 2

[0023] Example 2 The inhibition of pine leaf powder to higher density Microcystis

[0024] Wash and dry fresh pine leaves, pulverize them into powder with a particle size of 40-200 mesh, and sterilize the powder by ultraviolet light for 30 minutes to obtain pine leaf powder. Take 0.8g, 0.70g, 0.6g and 0.5g of masson pine leaf powder respectively, and add them into 200mL of Microcystis aeruginosa culture medium with an initial density of 100,000 / mL. 1 time a day for 3 consecutive days. The experimental group and the control group each set 3 bottles in parallel. The optical density at 695nm of each bottle of algae liquid was measured every day on the 0-3 day after adding the masson pine leaf powder. On the third day after adding masson pine powder, the optical density of algae in the control group increased by 23%, while the optical density of algae in each experimental group decreased by 30%, 36%, 20% and 17% compared with the beginning of the test. Compared with the algae d...

Embodiment 3

[0026] Embodiment 3 Masson pine leaf juice inhibits algae experiment

[0027] Wash the fresh pine leaves, soak and grind to get the pine juice. Put 0.4 mL and 0.32 mL of pine leaf juice into 200 mL of Microcystis aeruginosa culture medium with an initial density of 35,000 / mL, respectively. 1 time a day for 3 consecutive days. The experimental group and the control group each set 3 bottles in parallel. On the 0-3 day after the masson pine leaf juice was added, the number of individual algae in each bottle of algae liquid was measured every day. On the 3rd day after adding masson pine juice, the number of algae individuals in the control group increased by 34%, while the number of algae individuals in each test group decreased by 39% and 11% respectively compared with the beginning of the experiment. Compared with the number of algae individuals in the control group, the algae inhibition rates of the experimental group were 54% and 32%, respectively.

[0028] Such as image...

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Abstract

The invention relates to a method for inhibiting excessive growth of algae in a water body by using masson pine leaves. The method comprises the steps of crushing or grinding the fresh masson pine leaves into pulp and putting into the water body to be treated, wherein the dosage is 1.76-4g / L per day and dosing is performed for consecutive 3 days. The method provided by the invention is low in price, good in algal inhibition effect, rapid in onset of action, simple to operate and safe in ecology. The method can be applied to algal control of natural water bodies or artificial water bodies, such as lakes, reservoirs, rivers, park landscape water bodies, family landscape water bodies and the like. By adopting the method, the algal inhibition rate is 32%-70% against the water body with the initial density of the algae of 35000-100000 / mL.

Description

technical field [0001] The invention relates to a method for controlling algae in a water body, in particular to a method for using masson pine leaves to suppress the excessive growth of algae in a water body. Background technique [0002] In recent years, with the rapid development of society, industrial wastewater and domestic sewage have been discharged in large quantities, nitrogen and phosphorus in agricultural non-point sources have been seriously lost, and a large number of organic pollutants and nutrient salts have directly or indirectly entered water bodies, resulting in increasingly serious water eutrophication trends. , many water bodies are at risk of water blooms. In my country, the most common microcystis bloom is the dominant species of Microcystis aeruginosa. For example, the cyanobacteria blooms that broke out in Taihu Lake, Chaohu Lake, and Dianchi Lake are all dominated by Microcystis aeruginosa. How to remove and control the excessive growth of harmful a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00
CPCC02F1/50C02F2303/20
Inventor 吴晓辉陈英硕王震康磊
Owner BEIJING WATER SCI & TECH INST
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