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Method for cooperatively controlling microcystis aeruginosa and purifying water quality by using Plagiognathops microlepis, hyriopsis cumingii, Bellamya aeruginosa and calamus

A technology of patina patina and Microcystis aeruginosa, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., to increase biodiversity, easy to catch and harvest, and avoid secondary pollution effect

Active Publication Date: 2014-03-12
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the controversial problem of using organisms to treat Microcystis aeruginosa in the prior art, the present invention provides a method for synergistic control of Microcystis aeruginosa and water quality by slender pomfret, triangular sail mussel, patina aeruginosa, and calamus. The main fish of the non-classical biomanipulation technology was replaced with an "environmental protection fish" - Lepidopteris, and two kinds of benthic animals in the lake - triangular snail and ring snail and an emergent plant - calamus were introduced. Through the cooperation between them, they can effectively purify the eutrophic water body, in order to realize the comprehensive control of Microcystis aeruginosa at different depths of the water body, and at the same time purify the water quality.

Method used

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  • Method for cooperatively controlling microcystis aeruginosa and purifying water quality by using Plagiognathops microlepis, hyriopsis cumingii, Bellamya aeruginosa and calamus
  • Method for cooperatively controlling microcystis aeruginosa and purifying water quality by using Plagiognathops microlepis, hyriopsis cumingii, Bellamya aeruginosa and calamus

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Experimental program
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Embodiment 1

[0029] Step 2: Put the triangle sail mussel 5 into the mesh bag 4 of the continuous ecological floating bed, the diameter of the mesh bag 4 is 20cm, the size of the triangle sail mussel 5 is 120g / piece, and the feeding density of the triangle sail mussel 5 is 3kg / m 3 ;

[0030] Step 3: Press 300g / m into the water respectively 3 、2.5kg / m 3 Throw in 6 pomfrets and 7 snails at the same density, and there will be 8 activities at the bottom of the pond. Among them, the weight of a single tail of pomfret is 5-6g, and the weight of a single snail is 2.5-3.5g.

[0031]This embodiment utilizes the filtering effect of the triangular sail clam on the upper layer of water containing Microcystis aeruginosa, the filtering effect of the pomfret on the middle and lower layers of Microcystis aeruginosa, and the dormancy of the bottom layer of Microcystis aeruginosa by the snail. And the scraping effect of organic debris, the nutrient adsorption of calamus to Microcystis aeruginosa to contro...

Embodiment 2

[0035] With embodiment 1, difference is to select specific eutrophic waters, nitrogen, phosphorus, COD and BOD in water 5 The indicators meet the following requirements: 0.9mg / L5 3 ; The stocking densities of the slender pomfret and the patina were respectively 300g / m 3 、3kg / m 3 . The removal rate of algae is 50%, the removal rate of chlorophyll a is 60%, and the removal rate of N and P is 55%.

Embodiment 3

[0037] With embodiment 1, difference is to select specific eutrophic waters, nitrogen, phosphorus, COD and BOD in water 5 The indicators meet the following requirements: 0.7 mg / L5 3 ; The stocking densities of the slender pomfret and the patina patina were 400g / m respectively 3 、2.5kg / m 3 . The removal rate of algae is 70%, the removal rate of chlorophyll a is 73%, and the removal rate of N and P is 63%.

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Abstract

The invention discloses a method for cooperatively controlling microcystis aeruginosa and purifying water quality by using Plagiognathops microlepis, hyriopsis cumingii, Bellamya aeruginosa and calamus, and belongs to the technical field of water quality purification. The method comprises the following implementation steps: 1, selecting a specific eutrophication water area; 2, putting the hyriopsis cumingii into a net bag of a continuous ecological floating bed; and 3, throwing the Plagiognathops microlepis and the Bellamya aeruginosa into the water respectively. The method is simple and practical, can control the microcystis aeruginosa on upper, middle and lower layers of the water and microcystis aeruginosa hypopus in bottom mud and achieves an effect of purifying the water quality; various types of organisms are added, so the biological diversity of the water is improved and balance of a water ecological system is promoted; the hyriopsis cumingii, the Bellamya aeruginosa and the Plagiognathops microlepis are caught, so a certain economic value is achieved; and the calamus can be harvested at fixed period and can be used for feeding animals or serve as paper-making raw materials, so secondary pollution is avoided.

Description

technical field [0001] The invention belongs to the field of water quality purification, in particular, it relates to a fish, two kinds of benthic animals and a kind of emergent plants combined algae control and water purification method, more specifically, it relates to a kind of fish, cylindrica and spinnaker The invention discloses a method for synergistically controlling Microcystis aeruginosa with mussels, patina snails and calamus, and a water purification method, belonging to the technical field of water treatment. 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 importan...

Claims

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Application Information

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IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 张毅敏高月香周创汪龙眠杨飞刘海青吴晗
Owner NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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