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Synergistic control of Microcystis aeruginosa by Pomfret stenifolius, Triangular sail mussel, and Apatina patina

A technology of pomfret slender scales and snail patina, which is applied in the field of water treatment, can solve the problems of inability to remove algae and effectively remove Microcystis aeruginosa, so as to benefit the water ecosystem, increase biodiversity, and inhibit The effect of increasing

Active Publication Date: 2015-12-30
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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Problems solved by technology

[0005] Aiming at the problem that the application of the prior art poses a certain threat to the ecological balance of the water body and cannot effectively remove the algae in each water layer of the water body, especially Microcystis aeruginosa, the present invention provides a kind of pomfret slender scales and triangular sail clam 1. A method for synergistic control of Microcystis aeruginosa by snails. It is a treatment method specifically aimed at the treatment of Microcystis aeruginosa with a mass ratio greater than or equal to 50% in polluted waters. It replaces the main fish of the traditional non-classical biological manipulation technology with a The "environmental protection fish" - Pomfret chinensis, and the introduction of two common benthic animals in lakes - triangular sail mussel and patina patina, can realize all-round synergistic control of Microcystis aeruginosa at different depths of water bodies

Method used

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  • Synergistic control of Microcystis aeruginosa by Pomfret stenifolius, Triangular sail mussel, and Apatina patina

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (a) Select eutrophic waters, nitrogen, phosphorus, COD and BOD in water 5The indicators meet the following requirements: 0.7mg / L5 <8mg / L, and the maximum depth does not exceed 3m, the flow velocity of the water is 0-0.1m / s, the mass ratio of Microcystis aeruginosa in the aquatic algae is equal to 76%, and polyethylene floating ball 1 is placed on the water surface, polyethylene floating ball 1 is provided with polyethylene net bag 3 below, and polyethylene net bag 3 is connected with polyethylene floating ball 1 by acrylic fiber rope 2; The diameter of polyethylene floating ball 1 is 10cm.

[0033] (b) Put a single triangle sail mussel 4 with a weight of 120g into a polyethylene net bag 3 with a diameter of 20cm. The distance between the polyethylene net bag 3 and the polyethylene float 1 is 45cm, and the feeding density of the triangle sail mussel 4 is 3kg / m 3 .

[0034] (c) Put 0.3kg / m into the water respectively 3 5 and 2.5kg / m 3 The ratio of the three is 3:30:25...

Embodiment 2

[0038] Example 3

Embodiment 3

[0040] Example 4

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Abstract

The invention discloses a method for synergistically controlling Microcystis aeruginosa by the pomfret slender scales, the triangular sail mussel and the patina snail, and belongs to the technical field of water treatment. It is a method for treating waters where the indicators of nitrogen, phosphorus, COD and BOD5 meet certain requirements in water; through the present invention, the upper, middle and lower layers of Microcystis aeruginosa and the dormant body of Microcystis aeruginosa at the bottom can be cleaned up, increasing the water quality. The biological diversity is beneficial to the balance of the water body ecosystem, and at the same time, by catching the triangular sail mussel, the patina ring snail and the slender gnats, it has a certain economic value. The invention has a simple structure, a reasonable design, and is easy to implement. advantage.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a method for synergistically controlling Microcystis aeruginosa with fish and two benthic animals, and more specifically relates to Pomfret chinensis, Triangle clams, and ring patina A method for synergistic control of Microcystis aeruginosa by snails. Background technique [0002] Lakes are one of the important water resources in my country, providing irreplaceable ecological and social service functions for human beings. However, the eutrophication of lakes in my country is becoming more and more serious. The most obvious characteristics of lake eutrophication are the "frenzied growth" of algae and the outbreak of algal blooms. Therefore, the removal of excessive algae in eutrophic water is an important aspect of eutrophication control. Microcystis aeruginosa is the most common algal species in water bloom outbreaks, and it dominates in quantity and freque...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32
Inventor 张毅敏周创高月香汪龙眠杨飞刘海青吴晗车昱晓
Owner NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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