Water ecological purification system and method

Abstract

The invention relates to a water ecological purification system and method. Partition walls are arranged on the edge of water; a waterweed growth area and a fish growth area are arranged in the water area surrounded by the partition walls, the waterweed growth area and the fish growth area are separated latitudinally or longitudinally by a separation net; submerged plants are planted in the planting soil in the waterweed growth area, and the submerged plants of different colors and shapes are matched to create the underwater landscape; aquatic animals which are matched reasonably and can establish a stable ecological chain are raised in the fish growth area; and biological bases are distributed in water according to a proportion. A submerged plant and aquatic animal coexisting water purification system is established, and the submerged plant has the function of controlling the eutrophication. Due to the adoption of the water ecological purification system and method, a stable biological chain can be formed in water, the effect of purifying water is achieved.

Description

technical field [0001] The invention belongs to the field of ecological restoration, and in particular relates to a water body ecological purification system and a water body ecological purification method for slightly polluted eutrophic water bodies. Background technique [0002] The development of human civilization has led to a large amount of nitrogen and phosphorus nutrients being discharged into rivers and lakes, such as chemical fertilizers, pesticides, domestic washing water and so on. The natural water body itself has self-purification ability, but the self-purification ability has the maximum extreme value, and the massive injection of pollution sources exceeds the maximum purification extreme value of the water body, resulting in a large amount of excess nutrients, which provides convenient conditions for the growth of algae in the water body, so algae have become The dominant species causes flooding, covers the water surface, grabs sunlight and oxygen, causes the...

AI Technical Summary

Problems solved by technology

The natural water body itself has self-purification ability, but the self-purification ability has the maximum extreme value, and the massive injection of pollution sources exceeds the maximum extreme value of water purification, resulting in a large amount of excess nutrients, which provides convenient conditions for the growth of algae in the water body, so algae have become The dominant species causes flooding, covers the water surface, grabs sunlight and oxygen, causes the imbalance of the water ecosystem, and releases algae toxins, seriously pollutes the water quality and destroys the landscape

Algae are difficult to digest due to their small size, and cannot be effectively suppressed by filtration and higher aquatic animals

Although algae can be controlled by chemical methods and flocculants, it will produce secondary pollution, which is the worst method from an ecological point of view

Although the wetland method has a certain effect, it has the disadvantages of large area, easy to be disturbed by diseases and insect pests, high construction cost, and relatively low treatment efficiency, so it is not suitable for large-scale promotion

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