Ecological treatment system and method of natural water body

Abstract

The invention discloses an ecological treatment system and method of a natural water body. The system comprises water purification treatment, aeration for oxygen enrichment and water body circulation;water purification treatment means that a treated water body is lifted to a water body reaeration purification device for purification, pollutants are cleared, and the water body transparency is improved; aeration for oxygen enrichment means that the purified water body is supplemented with dissolved oxygen to improve a redox potential of the water body; water body circulation means that water subjected to treatment of aeration for oxygen enrichment is returned to a renovated water body through a water body circulation oxygen enrichment device; then the water body circulation oxygen enrichment device is used for further supplementing the renovated water body with dissolved oxygen, promoting running water, further purifying the water quality, reducing ammonia nitrogen and improving the transparency and the redox potential. According to the ecological treatment system and method of the natural water body, water quality improvement, ecological remediation and landscape ascension are combined, the system and the method have the characteristics that energy is saved, the algal inhibition effect is good, ecological restoration is fast, the treatment cost is low, and the like, and the system and the method have better social benefits and ecological benefits.

Description

technical field [0001] The invention relates to the field of water environment management and ecological restoration, in particular to an ecological management system and method for natural water bodies. Background technique [0002] With the acceleration of urbanization and the improvement of industrialization, the direct discharge of excessive living pollution has caused water eutrophication, and even caused the water in the river to turn black and smelly, completely losing the use function of the water body, forming black and smelly water. Black and odorous water bodies not only cause serious damage to aquatic organisms and ecosystems, but also have a great impact on human living environment and health. [0003] When the water body is polluted by organic matter and reducing substances, the dissolved oxygen in the water body decreases. Dissolved oxygen in water has a vital impact on the survival of aquatic organisms. When dissolved oxygen is lower than 2mg / L, it will caus...

AI Technical Summary

Problems solved by technology

In the process of pond aquaculture, due to the relatively closed nature of the pond itself, the flow and circulation of the water body is not smooth. In addition, the environment continues to deteriorate in the process of industrialization, the water body is polluted, and water quality problems occur frequently, which brings many troubles and challenges to pond aquaculture.

[0004] At present, there are technologies such as Roots blower and aquatic plants in the water treatment methods for black and odorous water, aquaculture, and sewage purification, but due to various constraints, such as difficult construction, high cost, and poor results, it cannot Fundamentally improve and repair urban water ecological environment and aquaculture problems

[0005] In the existing treatment methods for black and odorous water bodies, aeration method and planting method are mainly used; wherein, the aeration method is to pass air or oxygen into the black and odorous water body to increase the oxygen content in the water body and increase the oxygen content in the water body. The activity of aerobic microorganisms can oxidize the sulfide in the water body to solve the odor phenomenon of the water body. However, when using this method to treat the black and odorous water body, it is necessary to introduce a large amount of oxygen-containing gas into the water body. The scale is huge, and at the same time, adopting this method can not reduce the concentration of nitrogen and phosphorus in the water body, therefore, it cannot fundamentally solve the eutrophication problem of the water body; Herbaceous plants absorb nitrogen and phosphorus in black and odorous water to reduce the content of nitrogen and phosphorus in the water. However, in this method, the oxygen produced by the photosynthesis of herbaceous plants is released into the air through the leaves, so it is difficult to effectively increase the dissolved oxygen in the black and odorous water. amount, the governance effect is not significant

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