A method for in-situ remediation of water bodies using bioelectrochemical enhancement of floating ecological beds

A bioelectrochemical, in-situ remediation technology, applied in the field of water body remediation, can solve the problems of short maintenance time of biological inoculants, limited contact area of ​​biological fillers, and inability to achieve treatment effects, so as to improve the anti-pollution load capacity and convenience. The effect of post-maintenance management and high species richness

Active Publication Date: 2022-06-03
HARBIN INST OF TECH
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  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the problems that the existing artificial floating island technology only relies on the absorption of plants and usually cannot achieve an effective treatment effect, the maintenance time of the activity of the biological bacteria agent in the existing strengthening method is short, the contact area of ​​the biological filler is limited, and the problems of high energy consumption, while Provides a method for in-situ restoration of water bodies using bioelectrochemical enhancement of floating ecological beds

Method used

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  • A method for in-situ remediation of water bodies using bioelectrochemical enhancement of floating ecological beds
  • A method for in-situ remediation of water bodies using bioelectrochemical enhancement of floating ecological beds
  • A method for in-situ remediation of water bodies using bioelectrochemical enhancement of floating ecological beds

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specific Embodiment approach 1

[0030] Embodiment 1: A method for in-situ restoration of water bodies using bioelectrochemical strengthening of floating ecological beds described in this embodiment is carried out according to the following steps:

[0031] 1. Select areas of polluted natural water bodies;

[0032] 2. Construct bioelectrochemical enhanced floating ecological beds in polluted natural water areas and fix them;

[0033] The bioelectrochemical enhanced floating ecological bed is formed by connecting a plurality of monomer bioelectrochemical enhanced floating ecological beds, and the single bioelectrochemical enhanced floating ecological bed is composed of a floating body material layer, a matrix material layer, plants and electrons. It is composed of conductive material; a layer of matrix material is arranged on the upper and lower sides of the floating body material layer, and a plurality of planting holes are arranged along the thickness direction of the single bioelectrochemical enhanced floati...

specific Embodiment approach 2

[0051] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the floating body material layer described in step 2 is composed of polyvinyl chloride pipes, polystyrene foam boards, phenolic foam boards and polyvinyl chloride foam boards. one or a combination of them. Others are the same as the first embodiment.

specific Embodiment approach 3

[0052] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the diameter of the polyvinyl chloride pipe is 24 cm to 48 cm; the polystyrene foam board, phenolic foam board and polystyrene foam board The thickness of the vinyl chloride foam board is 1 cm to 5 cm. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a water body restoration method in situ by using bioelectrochemistry to strengthen a floating ecological bed, and the invention relates to a water body restoration method. The invention aims to solve the problems that the existing artificial floating island technology usually cannot achieve an effective treatment effect only by relying on plant absorption, the maintenance time of the activity of the biological agent in the existing strengthening method is short, the contact area of ​​the biological filler is limited, and the problems of high energy consumption. Method: A bioelectrochemically enhanced floating ecological bed was constructed in the polluted natural water area. The bioelectrochemically enhanced floating ecological bed was composed of a floating body material layer, a matrix material layer, plants and electron-conducting materials; the electron-conducting material consisted of electron acceptor materials, electron The donor material and the conductor material are composed, and the electron acceptor material and the electron donor material are connected to the circuit device through the conductor material to form a closed circuit; a matrix material layer is arranged on the upper and lower layers of the floating body material layer, and a planting hole is arranged, and plants are planted in the planting hole.

Description

technical field [0001] The present invention relates to a water body restoration method. Background technique [0002] With the rapid development of urbanization, surface waters such as rivers and lakes have been seriously polluted. According to the 2018 Bulletin on the State of China's Ecological Environment, the proportion of water bodies of Class V and inferior Class V still accounted for 11.4% of the 1,613 water quality sections of surface water across the country. Eutrophication of surface water will affect the ecological environment, and pollutants can harm human health through irrigated farmland or food chain. [0003] Biological / ecological technologies are widely used in the in-situ restoration of surface water in rivers and lakes due to their advantages of low cost, low operating cost, low energy consumption and good effect. Such technologies mainly include artificial wetland technology and artificial floating island technology. Relying on the metabolism of organis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/00C02F3/28C02F3/32C02F101/30
CPCC02F3/32C02F3/005C02F3/28C02F2101/30Y02W10/10
Inventor 冯玉杰邱叶张倩文田言李鹤男何伟华
Owner HARBIN INST OF TECH
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