Black and odorous water body treatment and restoration system

Abstract

The invention discloses a black and odorous water body treatment and restoration system. The system has the advantages of low investment cost, favorable nitrogen/phosphorus removal effect, stable operation and the like, and is convenient for installation. The system comprises a biochemical in-situ reinforced treatment region and an aquatic plant restoration region, wherein the biochemical in-situ reinforced treatment region is an integrated water body in-situ restoration facility, and is mainly composed of a main body frame, an aerator, a cofferdam, a drawer-type filler unit, a floating-type biological filler, an aeration main pipe, a fan, a fan hood, a floater and a fan support; the aquatic plant restoration region is an ecological floating island restoration system and is composed of a planting net and aquatic plants; the aquatic plant restoration region is distributed around the biochemical in-situ reinforced treatment region; the cofferdam of the biochemical in-situ reinforcement treatment region divides the biochemical in-situ reinforced treatment region and aquatic plant restoration region into two independent regions; and water purified by the biochemical in-situ reinforced treatment region flows to the surrounding aquatic plant restoration region from the upper edge of the cofferdam.

Description

Technical field [0001] The invention relates to a water treatment and restoration system, in particular to a black and odorous water treatment and restoration system. Background technique [0002] In recent years, excessive human interference has destroyed the aquatic environment of the river system, causing problems such as the decline of the river's self-purification capacity, deterioration of water quality, and decline of biodiversity. The water quality of most rivers is already at or inferior to Category V. Therefore, the treatment and restoration of the polluted rivers brook no delay. [0003] Common water treatment and restoration technologies include: sediment dredging, aeration, dosing of chemicals and bacteria, biological grid and ecological base, ecological restoration, and various combined technologies. These technical measures have their own advantages and disadvantages. Sediment dredging can reduce the impact of pollutants on the water body within a certain period of ...

AI Technical Summary

Problems solved by technology

Sediment dredging can reduce the impact of pollutants on water bodies for a certain period of time, but it only realizes the transfer of pollutants without fundamentally removing pollutants, and the cost is high

Oxygen-increasing aeration technology is widely used, which can realize the oxygenation and stirring effect of water body, but different aeration equipment often cannot meet the requirements of both oxygenation efficiency and energy consumption, and cannot fundamentally solve water body pollution

Dosing chemicals and strains, the effect is quick, but the cost of chemicals is high, and secondary pollution may occur

Biological barriers and ecological bases can intercept pollution sources to a certain extent. Its essence is to provide a carrier technology for the growth and attachment of microorganisms. Microorganisms can gather and grow on the carrier, and remove pollution in water bodies through a large number of microbial communities. This method has low investment, low energy consumption, simple maintenance, and can remove organic matter, nitrogen, phosphorus, and algae in water, but the filler is slow to form a film, and the biofilm is easy to fall off, thereby reducing the purification efficiency.

[0004] Ecological floating islands refer to aquatic plants cultivated with the help of floating bodies. Through the action of the roots of aquatic plants and the microorganisms attached to their roots, they absorb nutrients in the water body, thereby removing the total nitrogen, phosphorus and other substances in the water body. However, they are easily affected by seasonal changes. Disadvantages such as long processing time and unstable processing effect

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