Self-anchored immersed ecological filter bed and method thereof for in situ purifying micro-polluted surface water

Abstract

The invention discloses a self-anchored immersed ecological filter bed and a method thereof for purifying micro-polluted surface water in situ, wherein the filter bed comprises a three-dimensional rectangle framework, parallel ropes (nylon cords or ropes of other materials), contact oxidation fillers and biomembranes; the plurality of parallel ropes are correspondingly arranged on the upper surface and the lower surface of the three-dimensional rectangle framework; the contact oxidation fillers are bound among the parallel ropes on the upper surface and the lower surface; the biomembranes areadhered to the surfaces of the contact oxidation fillers; and an anchored heavy things is connected to the bottom of the three-dimensional rectangle framework. The method thereof for purifying water comprises the steps of arranging the filter bed in the water body needing purification, anchoring the anchored heavy things at the bottom of a river (lake) bed, leading the filter bed to be immersed and suspended in the water body, and leading the bottom of the filter bed not to contact the river (lake) bed. The invention has the characteristics of large contact specific surface area, high biomass,quick purification speed, high efficiency, no affection on the sight and the like.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a self-anchored submerged ecological filter bed and a method for purifying slightly polluted surface water in situ. Background technique [0002] In the prior art, the ecological filter bed utilizes the huge specific surface area of ​​the elastic filler or the combined filler to allow microorganisms to grow on the surface of the filler to form a biofilm, thereby playing the role of biological filtration and biotransformation. It can be used for in-situ enhanced purification of micropolluted and eutrophic surface waters. However, the surface area of ​​the traditional ecological filter bed is not large enough, the implantation of microorganisms and algae is not easy, and it is fixedly installed, which has poor flexibility, affects water navigation, and has poor wind and wave resistance, which makes the effect of purifying water quality unsatisfactory. Contents of the inve...

AI Technical Summary

Problems solved by technology

However, the surface area of ​​the traditional ecological filter bed is not large enough, the implantation of microorganisms and algae is not easy, and it is fixed installation, the flexibility is poor, affecting the navigation of water bodies, and the anti-wind and wave ability is also poor, so the effect of purifying water quality is not ideal.

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