Lotus-root-shaped eutrophic sediment remediation system capable of aeration

Abstract

The invention relates to a lotus-root-shaped eutrophic sediment remediation system capable of aeration. The system comprises a wind energy aeration body, an universal rotatory connection aeration body, a plant floating body, a lotus-root-shaped matrix body and a nitrobacteria reinforcement body which are successively in connection from top to bottom, and the plant floating body and the lotus-root-shaped matrix body are connected via a pulling rope. According to the invention, the oxygen supplementation effects of the wind energy aeration body and the universal rotary connection aeration body realize regeneration and utilization of biological zeolite and a biological ceramic ring; the system can effectively remove organic pollutants and nutritive salts in a sediment-water interface, and specifically has significant removal efficiency to nitrogen pollutants; meanwhile, through the harvesting of aquatic plants, applicability of pollutants to the eutrophic sediments with high content of the nitrogen pollutants is realized.

Description

technical field [0001] The invention explores a method or process for the restoration of eutrophic river and lake sediments by constructing a lotus root-shaped aerated eutrophic sediment restoration system. Background technique [0002] The content of pollutants such as nutrients and heavy metals in eutrophic sediments is often dozens of times higher than that in the overlying water, and the pollutants in them enter the human body through the biomagnification of the food chain, posing a threat to human health; and the pollutants will It returns to the water body through dissolution, analysis and biological decomposition, and becomes a secondary pollution source. Therefore, when exogenous pollution is controlled, the removal of pollutants in sediments has more important significance for the ecological restoration of eutrophic rivers and lakes. In situ capping is one of the common methods to control the release of pollutants in sediments. In-situ covering technology is to co...

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Problems solved by technology

However, these methods only emphasize the blocking of the release of sediment pollutants, without considering the fundamental removal of pollutants from the sediment, and the covering generally stays in place for a long time and is not easy to

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