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Botanical algaecide for filamentous algae and preparation method of botanical algaecide

A plant-derived, filamentous algae technology, applied in botanical equipment and methods, plant growth regulators, herbicides and algicides, etc. The preparation method is simple, the effect of overcoming drug residues and abundant raw materials

Active Publication Date: 2017-03-08
SHANGHAI OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Physical methods mainly use manual methods such as aeration and salvage and automatic machinery such as air flotation to separate the algae from the water, but the physical method is time-consuming and laborious, and the algae filaments are easy to break during salvage, and the broken algae filaments can be separated by cell division. Rapid growth of new filamentous algae, therefore, physical methods cannot fundamentally solve the problem; chemical methods mainly use chemical agents to directly inhibit algal cells, destroying the physiological structure, thereby controlling the impact of algae growth
The chemical method has the advantages of quick effect and remarkable effect, but the chemical reagent itself is often poisonous, easily causes secondary pollution, and has certain adverse effects on aquatic organisms and water quality
Biological manipulation is to inhibit the growth of algae by rebuilding the biological community, such as using algae to control algae, higher aquatic plants to control algae, filter-feeding fish to eat algae, etc. The ecological method is undoubtedly an environmentally friendly algae removal method, but due to the Algae takes a long time, and it is easy to rebound, it is difficult to achieve the desired effect

Method used

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  • Botanical algaecide for filamentous algae and preparation method of botanical algaecide
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  • Botanical algaecide for filamentous algae and preparation method of botanical algaecide

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Effect test

Embodiment 1

[0027] A pure natural plant source preparation for removing filamentous algae in water, composed of pine needles, willow leaves and metasequoia leaves, wherein 5g of pine needles, 15g of willow leaves, and 10g of metasequoia leaves, each component is dried and crushed and passed through 100-200 mesh After the sieve, each component is mixed evenly and packed into bags with 300-mesh silk cloth bags, 3g / bag. Prepare a 1L beaker, add 1L of filtered lake water, and add vigorous Spirogyra with a fresh weight of about 2g. Take a bag of plant-derived inhibitors and dip them into a beaker, observe the color and shape of the algae, and measure the photosynthetic activity and fresh weight. After 24 hours, Spirogyra shrank obviously in the drug-dosing group. After 48 hours, the filamentous algae began to die. The color of the filamentous algae gradually changed from green to yellowish brown and brown, and the algae clusters became loose sand and all sank to the bottom. Microscopic observ...

Embodiment 2

[0029] A pure natural plant source preparation for removing filamentous algae in water, composed of pine needles, willow leaves and metasequoia leaves, wherein 10g of pine needles, 10g of willow leaves, and 10g of metasequoia leaves, each component is dried and crushed and passed through 100-200 mesh Sieve, mix evenly, and pack into bags with 300-mesh silk cloth bags after mixing, 3g / bag. Prepare a 1L beaker, add 1L of filtered lake water, and add vigorous Cladophora with a fresh weight of about 2g. Take a bag of plant-derived inhibitors and dip them into a beaker, observe the color and shape of the algae, and measure the photosynthetic activity and fresh weight. After 24 hours, the group of Cladophora began to wither, and after 48 hours, the color of the filaments gradually changed from emerald green to yellow, and even turned white and sank to the bottom (such as image 3 shown). After 96 hours, all the algae sank to the bottom. Compared with the control group, the photosy...

Embodiment 3

[0030] Embodiment 3: (for the treatment effect of Coleopsis)

[0031] A pure natural plant source preparation for removing filamentous algae in water, composed of pine needles, willow leaves and metasequoia leaves, wherein 5g of pine needles, 30g of willow leaves, and 25g of metasequoia leaves, each component is dried and crushed and passed through 100-200 mesh Sieve, mix evenly, and pack into bags with 300-mesh silk cloth bags after mixing, 3g / bag. Prepare a 1L-sized beaker, add 1L of filtered lake water, and add vigorous Coleopsis algae with a fresh weight of about 1g. Take a bag of plant-derived inhibitors and dip them into a beaker, observe the color and shape of the algae, and measure the photosynthetic activity and fresh weight.

[0032] After 24h, the Coleopsis algae in the dosing group began to wither and turn yellow (such as Figure 5 shown), after 48h, the color of the filaments gradually changed from emerald green to brownish yellow, and began to sink to the botto...

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Abstract

The invention belongs to technical methods for eliminating algae in water, and particularly relates to a botanical algaecide for filamentous algae and a preparation method of the botanical algaecide. The botanical algaecide comprises pine needles, willow leaves and metasequoia leaves. The preparation method includes: cleaning, drying, smashing and screening the pine needles, the willow leaves and the metasequoia leaves, and mixing the screened materials proportionally. The botanical algaecide for the filamentous algae has the advantages that natural plant sources including fallen leaves of familiar plants are taken as raw materials, the preparation method is simple, and the filamentous algae can be eliminated quickly and effectively.

Description

technical field [0001] The invention belongs to a technical method for eliminating algae in water, and in particular relates to a plant-derived algicide for filamentous algae and a preparation method thereof. Background technique [0002] Filamentous algae are commonly known as "Qingmoss, Shuimaozi". In ponds, paddy fields and other water bodies with slow water flow, filamentous algae can often be seen forming messy filaments and occupying the space of the water body. The massive growth of filamentous algae has not only caused harm to the ecological environment of water bodies, but also caused significant economic losses to fishery resources and production, and has also brought harm to tourism and human beings. It has become one of the global environmental disasters. [0003] At present, domestic treatment technologies for filamentous algae can be roughly divided into three categories: physical methods, chemical methods and biological manipulation methods. Physical methods...

Claims

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Application Information

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IPC IPC(8): A01N65/08A01P13/00
CPCA01N65/00A01N65/08A01N2300/00
Inventor 邵留贾睿姬芬凌云李娟英张饮江何培民
Owner SHANGHAI OCEAN UNIV
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