Floating island system for remediation of eutrophic polluted water and water remediation method

Abstract

The invention provides a floating island system for remediation of eutrophic polluted water and a water remediation method. The floating island system comprises a matrix floating on the water surface, a micro-nano bubble generator arranged on the matrix, a control device arranged on the matrix and a plant soilless planting device on the matrix; and air bubbles generated by the micro-nano bubble generator has a diameter of 1 to 50 mum. The floating island system provided by the invention is convenient to operate and use and organically combines various treating manners; and moreover, an oxygen increasing manner adopted by the invention cannot damage an epilimnion of natural water and cannot change the ecological environment of the integral water area.

Description

technical field [0001] The invention relates to the technical field of water pollution control, in particular to a floating island system and a water body restoration method for restoration of eutrophication polluted water. Background technique [0002] At present, the situation of water pollution in our country is relatively common, especially some water bodies with less fluidity are more seriously polluted, and the eutrophication of water bodies is very serious now. At present, the methods for removing eutrophication of water bodies at home and abroad are mainly divided into pharmaceutical methods, biological methods, and engineering methods. Among them, the pharmaceutical method mainly inhibits the precipitation of N and P elements in the water body by adding drugs. The dosage of the drug is large, and there is an effective distribution problem. It is difficult to de-eutrophicate large-scale and deep water bodies; Low activity and low dissolved oxygen in water and uneven...

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Problems solved by technology

General aeration equipment, because the diameter of the bubbles produced is large, the rising speed is very fast. Even if the gas is injected into the deep water body to generate bubbles, the water body after the bubbles will rise with the bubbles and cannot remain in the deep water anoxic. location, and because the aerobic water cannot be fully mixed with the surrounding anoxic water, little effect has been achieved; in addition, the flow and mixing of eutrophic water can be promoted by means of full-layer aeration combined with mechanical stirring This method requires high energy consumption due to the need to make most of the water body flow in the water area, and the full-layer aeration method destroys the thermocline in the natural water body and changes the ecological environment of the entire water area. The adjustment and changes of the ecological chain caused by this are unpredictable

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