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Application of a kind of watermelon rind in inhibiting the excessive growth of algae in water body

A watermelon rind and water body technology, applied in the fields of application, plant growth regulators, and chemicals for biological control, etc., can solve the problems of large impact on biological activity and slow effect of algae removal methods, and achieve good algae inhibition effect, Fast onset time and simple method

Active Publication Date: 2020-12-01
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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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 method is greatly affected by biological activity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: a kind of application of watermelon rind in suppressing the excessive growth of algae in water body, its steps are as follows:

[0022] Collect fresh watermelon rinds, wash them after removing the green clothes and red flesh, weigh 2 grams, 4 grams and 6 grams of washed watermelon rinds, and add them to 100 mL of single-cell aeruginosa with an initial algae cell density of 1 million / mL Microcystis aeruginosa culture fluid, as the experimental group; 100mL initial algae cell density of 1 million / mL single-cell Microcystis aeruginosa culture fluid as a blank control group, each experimental group and control group were set in three parallel. After 72 hours of dosing, the algae solution was counted. Compared with the control group, the average algae inhibition rate of the experimental group was 62.3%, 87.4% and 98.9%.

Embodiment 2

[0023] Embodiment 2: a kind of application of watermelon rind in suppressing the excessive growth of algae in water body, its steps are as follows:

[0024] Collect fresh watermelon rinds, remove green clothes and red flesh, and wash them. Take 6 grams of washed watermelon rinds and add them to 100 mL of unicellular Microcystis aeruginosa and Microcystis aeruginosa with an initial algae cell density of about 9 million / mL. The culture fluids of Cystis algae, A. wateriana and Anabaena blooms were used as the experimental group; their respective cultured fluids were used as the blank control group, and each experimental group and control group were respectively set up in three parallels. After 72 hours of dosing, the algae liquid was counted. Compared with the control group, the average algae inhibition rate of the experimental group was 97.9% for unicellular Microcystis aeruginosa, 93.6% for Microcystis group, 94.5% for A. Anabaena 95.7%.

Embodiment 3

[0025] Embodiment 3: a kind of application of watermelon rind in suppressing the excessive growth of algae in water body, its steps are as follows:

[0026] Collect fresh watermelon rinds, remove green clothes and red flesh, wash them, and dry them in an oven at 60°C until they reach constant weight. Take 0.2, 0.4, and 0.6 grams of dried watermelon rinds and add them to 100 mL of initial algae with a cell density of about In the single-cell Microcystis aeruginosa culture fluid of 9 million / mL, as experimental group; 100mL initial density is the single-cell Microcystis aeruginosa culture fluid of 9,000,000 / mL as blank control group, each experimental group and Three parallel groups were set up for each control group. After 72 hours of dosing, the algae liquid was counted. Compared with the control group, the average algae inhibition rate of the experimental group was 49.9%, 90.6% and 94.5%.

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Abstract

The invention belongs to the field of water treatment, and concretely discloses an application of watermelon peel in inhibition of overgrowth of algae in water. The application comprises the followingsteps: removing surface green skin and internal melon pulp of fresh watermelon peel, and directly throwing the obtained watermelon peel into water to be treated, or performing drying under the temperature condition of not higher than 60 DEG C and then throwing the obtained dried watermelon peel into water to be treated, wherein the throwing amount is 20-60g (fresh weight) / L or 2-6g (dry weight) / L, and the throwing manner is one-time throwing, and 1-5 days after throwing, fishing out the watermelon peel. According to the application disclosed by the invention, for the water with a starting algae cell density of 1-9 million / mL, the algae inhibiting rate three days after throwing is performed can reach 99.2%; and the materials used in the method are easy to obtain, the algae inhibiting effects are good, the onset time is quick, the operation is simple, secondary pollution to the water is not caused, the application is not restricted by areas, solar terms, temperatures and the like, and the application is beneficial for practical promotion and use.

Description

technical field [0001] The invention belongs to the field of water treatment, and in particular relates to an application of watermelon rind in inhibiting excessive growth of algae in a water body. Background technique [0002] In recent years, with the growth of population and the rapid development of economy, the intensity of resource utilization has increased, and industrialization and urbanization have developed rapidly, resulting in the degradation of lake ecosystems in my country and the rapid development of lake eutrophication. In many water bodies in my country, such as Chaohu Lake, Taihu Lake, and Dianchi Lake, cyanobacteria blooms frequently occur, seriously threatening human safety and health. Therefore, how to remove and control the excessive reproduction of algae in water bodies, especially harmful cyanobacterial blooms, is a major environmental science problem to be solved urgently in my country and even in the world. [0003] At present, the main technologies...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/50A01N65/08A01P13/00
CPCA01N65/00A01N65/08C02F1/50C02F2303/20
Inventor 张胜花廖富贤常晓宜梁菊徐沛瑶
Owner SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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