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Method for restoring algal-inhibition submerged vegetation in eutrophic water

A submerged vegetation, eutrophic technology, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc. Become secondary bare land and other problems, to achieve the effect of improving water transparency, improving water quality, and achieving remarkable results

Inactive Publication Date: 2012-06-20
INST OF AQUATIC LIFE ACAD SINICA
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Problems solved by technology

However, at present, due to the intensification of eutrophication in most of the lakes in my country, the transparency of the water body has dropped sharply, and there has been a severe situation in which many submerged plants have disappeared, the area of ​​submerged vegetation has shrunk, the vegetation species have become monotonous, and the lakes have become secondary bare land.

Method used

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  • Method for restoring algal-inhibition submerged vegetation in eutrophic water
  • Method for restoring algal-inhibition submerged vegetation in eutrophic water
  • Method for restoring algal-inhibition submerged vegetation in eutrophic water

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Embodiment Construction

[0037] The following is a detailed description in conjunction with the accompanying drawings and implementation examples:

[0038] 1. Method

[0039] Such as figure 1 ,

[0040] ① Select 10 submerged plants

[0041] Prioritize the dominant species in the nearby water body, which require fast growth, strong regeneration ability, and high photosynthetic efficiency; for example, in Taihu Lake, choose bitter grass, sunflower seedlings, chrysanthemum spicosa, weed and black algae .

[0042] ②Clay selection 20

[0043] The clay used is dried at 80°C, ground, and sieved through a 200-mesh sieve to make it a powder with a particle size of 72 μm; the purpose is to increase its adsorption contact surface and facilitate operations such as weighing, dissolving, and splashing;

[0044] Choose a professional clay sewage treatment agent such as JC-ZF-01 water treatment agent produced by Jiangsu Jiuchuan Nano Material Technology Co., Ltd.

[0045] ③Modification of clay 30

[0046] The ...

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Abstract

The invention discloses a method for restoring algal-inhibition submerged vegetation in the eutrophic water, and relates to a technology for large-area and large-scale water environment biological control. The invention comprises the following steps: 1, selection of submerged vegetation (10); 2, selection of clay (20); 3 modification of clay (30); 4, transplantation of vegetable (40); and 5, implementation and management (50). The invention has the advantages of simple method, low cost, convenience in material selection and construction and remarkable effect, can effectively improve water quality and water transparency, remarkably decreases nutrient salt, maintains the stability of water in the oligotrophic state, can quickly restore submerged vegetation in eutrophic shallow lakes, and issuitable for restoration works for lake aquatic vegetation and diversified lakes water plants or lake aquatic ecological system ecological reconstruction works.

Description

technical field [0001] The invention relates to a large-scale water environment biological treatment technology, in particular to a method for inhibiting algae and helping submerged water vegetation recovery in nutrient-rich water bodies. Background technique [0002] Eutrophication of natural water bodies and frequent outbreaks of cyanobacterial blooms have become major environmental problems facing the world, and the situation in my country is also very severe. After Taihu Lake in Wuxi, Dianchi Lake in Yunnan and Chaohu Lake in Anhui, severe cyanobacteria blooms also broke out in Changchun Xinlicheng Reservoir and some bay areas of East Lake in Wuhan. The outbreak of cyanobacterial blooms has had a serious impact on aquaculture and landscape tourism. Studies have shown that 80% of the outbreaks of cyanobacteria blooms produce toxins, and these toxins can not only enter drinking water sources directly to endanger human health, but also can be enriched in aquatic animals su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 汤鑫曹特倪乐意
Owner INST OF AQUATIC LIFE ACAD SINICA
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