Floating bed filter screen type biofilm grid

Abstract

The invention relates to a floating bed filter screen type biofilm grid. A main body of the floating bed filter screen type biofilm grid comprises a filter screen and an ecological floating bed. The filter screen has the characteristics of light weigh, excellent water vapour permeability and strong impact resistance. The aperture of the filter screen is 50-200cm. The ecological floating bed can be formed by combining a plurality of planting carriers or adopts a forming monomer; sectional bamboo canes, on one end of the ecological floating bed, which is fixed with a wall body, are respectivelyprovided with buckles; anchor bolt hooks are arranged under inner-ring bamboo canes; and the buckles are buckled with corresponding slide bars or iron chains and other fixed manners arranged under a river channel discharge opening, so that the floating bed is fixed, can be prevented from being carried away along with water flow, and can be floated up and down along with the water level. The invention provides a water environment treatment method and device which are used for intercepting suspended matters discharged from a pipeline due to rain wash through a screening function of the filter screen and an adsorption effect of a root system of the ecological floating bed, and not only can suppress further deterioration of waterway environment, but also have a certain landscape effect. The floating bed filter screen type biofilm grid has the characteristics of low cost, convenience in installation, simplicity and easiness in maintenance, and certain landscape effect, and can be widely applied in harnessing of urban rivers.

Description

technical field [0001] The invention relates to the technical field of water pollution control engineering, in particular to a physical interception method and a device for intercepting pipeline sediment and suspended matter in rainy days in urban river and lake treatment. Background technique [0002] Drainage pipeline sediments mainly come from suspended solids in domestic sewage and suspended solids brought into drainage pipelines by runoff in rainy days. Its properties are affected by factors such as the characteristics of the drainage area, the type and structure of the drainage system, and the nature of the sewage. [0003] According to the physicochemical properties of pipeline sediments, pipeline sediments can be divided into three types: bottom coarse-grained sediments, organic layers and biofilms. The bottom coarse-grained sediment is located at the bottom of the pipeline, showing inorganic characteristics, black and gray, and the particles are relatively coar...

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Problems solved by technology

However, the equipment purchase cost of this method is relatively expensive, and in addition, special personnel are required for maintenance, which is inconvenient

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