System and method for ecological purification of water body on basis of nanometer coupling material

Abstract

The invention discloses a system for ecological purification of a water body on the basis of a nanometer coupling material. The system comprises an exogenous interception unit, an endogenous control unit, an artificial purification unit and an ecological restoration unit, wherein the exogenous intercepting unit comprises an ecological intercepting ditch and a slope protection ecological intercepting belt which are respectively positioned at two sides of a river channel; the ecological intercepting ditch comprises a plurality of intercepting ditches and intercepting pools communicating with theintercepting ditches; gravel and a water treatment slow-release agent are laid on the bottom walls of the intercepting ditches; porous ceramic particles are laid on the bottom walls of the intercepting pools; the slope protection ecological interception belt comprises a plurality of moisture absorption ecological bags which are stacked layer by layer along the slope surface and are mutually locked; a moisture absorption material fills each moisture absorption ecological bag; the artificial purification unit comprises an air supply device and an aeration device; the air supply device comprisesa fan and a pipeline; the aeration device comprises a membrane frame and hollow fiber membrane assemblies fixedly arranged on the membrane frame; the membrane frame is of a hollow structure; one endof the membrane frame is connected with the pipeline; and the membrane frame is used for conveying gas to the hollow fiber membrane assemblies. The system provided by the invention constructs a complete ecological chain to reinforce the self-purification capacity of river water and stabilize the effect of water purification.

Description

technical field [0001] The invention relates to a water body ecological purification system and method based on nano-coupling materials, belonging to the technical field of environmental protection. Background technique [0002] With the rapid development of economy and society and the continuous expansion of cities, in the process of urban construction, the pollution of my country's urban water environment is becoming more and more serious. The water bodies in urban rivers are mostly polluted by organic pollutants, nitrogen, phosphorus and other pollutants. It is a common phenomenon in the rivers of cities in our country, and the governance of urban black and smelly rivers will be an environmental problem to be solved in the future. [0003] At present, many technologies for river purification have been developed. According to different principles of treating polluted rivers, river pollution control technologies can be divided into four categories: physical methods, chemical...

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Problems solved by technology

[0004] However, river pollution has the characteristics of many pollution channels, serious pollution, many types of pollutants, large quantity, wide pollution area, wide distribution, serious damage to natural ecosystems, and non-point source pollution is becoming more and more serious.

A single river management method can no longer effectively guarantee the complete restoration of the river water environment

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