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Plant-carrier biofilm reactor

A biofilm reactor, biofilm technology, applied in sustainable biological treatment, biological water/sewage treatment, chemical instruments and methods, etc. High, easy to manage, low energy consumption effect

Inactive Publication Date: 2008-04-09
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In summary, the disadvantage of the existing biofilm reactor is that the removal rate of total nitrogen in the water body is low, which endangers the ecological structure of the water body.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A plant-filler biofilm reactor, which is composed of a biofilm reactor and an emergent plant 4, placed in a water body to be treated during use, the biofilm reactor includes a frame 2 and a filler 1, and the frame 2 is capable of floating A frame on the water surface or a metal frame with buoys, the filler 1 is tied to the frame 2 in the form of a string by means of a rope 3, and each piece of filler 1 is attached to a filler biofilm that grows naturally in a natural state and contains a large number of denitrifying bacteria , it is characterized in that, the emergent plant 4 is fixed on the biofilm reactor in the way that the root system 5 and the filler 1 are entangled together, the stem of the emergent plant 4 and the root system 5 are respectively exposed to the water surface and submerged in the water, and the surface of the root system 5 Attached to it are root biofilms that grow naturally in a natural state and contain a large number of heterotrophic bacteria, nit...

Embodiment 2

[0017] This embodiment is identical with embodiment 1 except that the following is different from embodiment 1: the frame 2 is a metal frame with a buoy, and the buoy is a rectangle surrounded by a PVC pipe 6 and a PVC pipe elbow 7 The buoys, adjacent PVC pipes 6 are connected together by PVC pipe elbows 7, the metal is aluminum, and the rectangular buoys are fixed on the top of the aluminum frame.

Embodiment 3

[0019] This embodiment is identical with embodiment 1 except that the following is different from embodiment 1: emergent plant 4 is canna.

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Abstract

A vegetable-filling biological membrane reactor belongs to the technical field of environment protection and aqueous ecology restoration devices. The reactor consists of a biological membrane reactor and emerging plants in combination, wherein, roots of the emerging plants and fillings are intertwined together and then fixed on the biological reactor. While for use, the reactor is placed in water to be treated so that different membranes growing on the roots and the fillings performnitration and anti-nitration reactions simultaneously in different parts of the water body, thereby effectively removing the total nitrogen contained therein and restoring the water body. Without aeration, the reactor has the advantages of easy management, low energy consumption and high removal rate of the total nitrogen in the water.

Description

technical field [0001] The invention relates to a plant-filler biofilm reactor, which belongs to the technical field of environmental protection and water body ecological restoration devices. Background technique [0002] Existing biofilm reactors are usually used to treat domestic sewage and industrial sewage, and are also used to restore natural water bodies. In existing biofilm reactors, the fillers are fixed on the frame in the form of strings and put into the water body to be treated. The filler is attached with a biofilm that grows naturally in a natural state. The water quality of the water body can be treated with biofilm reactor alone, or both with biofilm reactor and aeration treatment. However, aeration has the disadvantages of high equipment energy consumption and difficult management. In the case of more dissolved oxygen in the water body, the existing biofilm reactor will cause more accumulation of nitrate and nitrite in the water body; in the case of less d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/10C02F3/32
CPCY02W10/10
Inventor 李秀艳杨清海
Owner EAST CHINA NORMAL UNIV