Ecological system suitable for deepwater environment restoration and construction method thereof

Abstract

The invention relates to an ecological system suitable for deepwater environment restoration and a construction method thereof. According to the ecological system, the underwater illumination system, the photocatalysis bionic net and the aquatic vegetation are matched, light energy of the underwater illumination system is absorbed by utilizing a photocatalysis material on the photocatalysis bionic net, water body pollutants are continuously adsorbed and degraded, microflora is enriched, water body organic pollutants are decomposed into nutrition ingredients for growth of the aquatic vegetation, and the aquatic vegetation starts photosynthesis through underwater illumination, and growth is accelerated. The whole system depends on a photocatalytic material with visible light response, photosynthetic water ecology natural recovery is started, and the power of nature is started to purify a water body and restore ecology. In addition, the photocatalytic bionic net can absorb light energy and is used for decomposing water to generate oxygen, a large amount of newly-generated oxygen can attract fishes and shrimps, breeding of surrounding aquatic ecological plants is promoted, and dynamic balance of aquatic ecology is achieved.

Description

technical field [0001] The invention belongs to the technical field of water environment restoration, and in particular relates to an ecological system suitable for deep water environment restoration and a construction method thereof. Background technique [0002] With the progress of society and the improvement of people's living standards, the discharge of domestic sewage and industrial wastewater has also increased rapidly, followed by the gradual increase in the range of black and odorous water bodies in rivers and river courses, and the degree of organic matter pollution in water quality has intensified. The main way to control water pollution in China is to build sewage treatment plants. Although the construction of sewage treatment plants is a very effective measure, the investment is relatively large, and the pollution of water bodies such as lakes and rivers can only be treated in situ. [0003] In the in-situ treatment method, physical or microbial methods are mai...

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Problems solved by technology

[0005] In the prior art, there are two methods for the treatment of pollutants in deep water areas: one is to set up floating islands on the water surface, and set up floating islands and bottom beds in the middle and lower layers of the water body, and set up floating islands, middle floating islands, and bottom beds The lower ends of each are equipped with rubber balloons, and the rubber balloons are connected with air pumps arranged on the floating islands. This method purifies the water body by using the plants on the floating islands and the bottom bed, but in places where there is no light in the deep water area, it cannot provide plant growth The required conditions cannot achieve the effect of purifying deep water

The second is to treat organic pollutants through photocatalysis. If this method is mainly based on ultraviolet radiation from artificial light sources, it will not only cost high but also consume a lot of electric energy; if natural light is used as the light source, it will be affected by the depth and turbidity of the water body. Catalyzes well

In addition, the existing titanium dioxide photocatalytic materials have low utilization rate of visible light and poor photocatalytic performance, which greatly limits the application of photocatalytic technology.

[0006] Therefore, the main problems of the prior art are: 1. The prior art cannot act on the dark deep water environment in the restoration process of the ecological water environment, and can only purify the upper water body, but cannot purify the deep water body

2. The existing technology is difficult to realize the comprehensive treatment and repair of eutrophic water bodies and industrial wastewater polluted water bodies, the treatment cost is high, and the operation process is complicated

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