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Electrocatalysis experimental device for downward subsurface flow constructed wetland

A technology for constructed wetlands and experimental devices, applied in electrochemical sludge treatment, chemical instruments and methods, biological sludge treatment, etc. control effect

Pending Publication Date: 2019-11-01
YANCHENG INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, current studies have shown that the provided electron acceptors are selective for the degradation of pollutants, and select small organic molecules that are easily reduced; for mud layers that are deeply polluted by chlorinated organic substances, they also lack the effect of deep repair.

Method used

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  • Electrocatalysis experimental device for downward subsurface flow constructed wetland
  • Electrocatalysis experimental device for downward subsurface flow constructed wetland
  • Electrocatalysis experimental device for downward subsurface flow constructed wetland

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Embodiment Construction

[0028] The preferred technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] The present invention relates to an electrocatalytic experimental device for a downward subsurface flow artificial wetland, which involves the redox process between microorganisms, electrodes and pollutants, can remove chlorinated organic matter in the root system of wetland plants, and solve the problem of high concentration in the sediment of the existing downflow subsurface flow wetland The accumulation of persistent chlorinated organic pollutants, which leads to the reduction of the activity of metabolic enzymes in plant roots, and further leads to the decay of plant roots, which eventually leads to the degradation of constructed wetlands.

[0030] like figure 1 As shown, the existing electrocatalysis experimental device includes a water isolation fence 1 with an upper opening, a polyethylene film anti-seepage layer is ...

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Abstract

The invention discloses an electrocatalysis experimental device of a downward subsurface flow constructed wetland. A solar power supply device is arranged outside a water isolation fence, a unit cathode is arranged in a water-soil mixed layer, a unit anode is arranged in a water outlet pipe, a cathode wire is arranged between the solar power supply device and the unit cathode, and an anode wire isarranged between the solar power supply device and the unit anode. Compared with the prior art, the electrocatalysis experimental device for the downward subsurface flow constructed wetland solves the problems that high-concentration persistent chlorinated organic pollutants are accumulated in the bottom mud of an existing downward subsurface flow wetland, so that the metabolic enzyme activity ofa plant root system is reduced, further, the plant root system is rotten, and a constructed wetland is finally degraded.

Description

technical field [0001] The invention relates to an electrocatalysis experimental device for a downward subsurface flow artificial wetland, which belongs to the technical field of environmental protection. Background technique [0002] Some chlorinated organic compounds are widely used as an important chemical raw material, organic solvent and intermediate in the industries of medicine, pesticide, leather, paper and so on. Chlorinated organic pollutants widely exist in industrial wastewater, are biologically toxic, and are difficult to biodegrade. After treatment, there is still a certain concentration in the tail water, and the tail water is degraded by the artificial wetland. The degradability of persistent pollutants is poor, but they will be adsorbed and accumulated in the plant roots. When the chlorinated pollutants accumulate to a certain concentration , resulting in biological toxicity. Chlorinated toxic organics (such as chlorophenols) can penetrate cells leading to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/02C02F101/30
CPCC02F11/006C02F11/02C02F2101/30
Inventor 陈天明代国庆远野金天璐陈丽娜
Owner YANCHENG INST OF TECH
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