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Method and device for coupling constructed wetland in composite vertical tidal flow microorganism electrolytic tank

A technology of artificial wetland and tidal flow, applied in the field of water environment treatment, can solve the problems that the dissolved oxygen affects the degree of nitrification reaction, affects the effect of denitrification, and cannot be completely restored, and achieves good purification effect, good reoxygenation effect, and strong recovery. The effect of oxygen capacity

Active Publication Date: 2017-10-17
INST OF AQUATIC LIFE ACAD SINICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

N 2 O comes from the oxidation of cyanamide in the traditional aerobic nitrification process, the reduction of nitrifying bacteria, and the reduction of nitrate nitrogen to N in the anaerobic denitrification process. 2 O, and further reduced to N 2 The process; while the amount of dissolved oxygen affects the degree of nitrification, and the lack of electrons often leads to N 2 O cannot be fully restored to N 2 , affect the denitrification effect, and release N 2 O into the environment

Method used

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  • Method and device for coupling constructed wetland in composite vertical tidal flow microorganism electrolytic tank
  • Method and device for coupling constructed wetland in composite vertical tidal flow microorganism electrolytic tank
  • Method and device for coupling constructed wetland in composite vertical tidal flow microorganism electrolytic tank

Examples

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Effect test

Embodiment 1

[0047] A method for coupling constructed wetlands with composite vertical tidal flow microbial electrolytic cells, the steps are:

[0048] A. A composite vertical tidal flow microbial electrolytic cell coupling artificial wetland automatic control water inlet and outlet device needs to be established and (initially) installed in the wetland, and the first DN2524V solenoid valve 1A and the second DN2524V solenoid valve 1B are respectively connected to the water inlet pipe 6 And tidal pipe 15, connect with electromagnetic valve controller with electric wire again, regulate the water in and out time by controller.

[0049] B. The start of the solenoid valve needs to meet a certain water pressure: 0.04 or 0.06 or 0.08 or 0.1Mpa. In order to ensure that the first DN2524V solenoid valve 1A can start normally, the water inlet pipe 6 should be connected to the first DN25Y type filter 3A first, and then connected to Into the first DN25280W pipeline booster pump 2A, the first DN25280W p...

Embodiment 2

[0059] A composite vertical tidal flow artificial wetland device, consisting of a first DN2524V solenoid valve 1A, a second DN2524V solenoid valve 1B, a first DN25280W pipeline booster pump 2A, a second DN25280W pipeline booster pump 2B, and a first DN25Y type filter 3A , The second DN25Y filter 3B, DN75 water collection pipe 4, DN75 water distribution pipe 5, DN25 water inlet pipe 6, 2P 10A air switch circuit breaker 7, 220V microcomputer time control switch 8, 220V solenoid valve controller 9, DN50 emptying pipe 10. Composed of 2m×1m×1m compound vertical flow artificial wetland with water storage tank 11, electrolytic layer electrodes and conductive substrate 12 of the downstream cell, electrolytic layer electrodes and conductive substrate 13 of the upstream cell, external power supply 14, and DN50 tidal tube 15.

[0060] It is characterized in that: 2m×1m×1m composite vertical flow artificial wetland 11 is composed of a descending pond and an ascending pond, two independent ...

Embodiment 3

[0070] The device in Example 2 is A according to the dry-wet time ratio. 0h: 24h; B. 6h:18h;C. 12h: 12h respectively run the small-scale composite tidal flow microbial electrolysis coupling artificial wetland with the filling height of the electrolytic layer matrix of 100cm×100cm×25cm and the filling height of the tidal layer matrix of 100cm×100cm×55cm. The voltage of the electrolytic layer is 15V, and the influent water quality is COD1500mg / L, TN60mg / L, TP15mg / L, daily processing capacity is 800L. After the operation is stable, the samples are collected and analyzed, and the monitoring data are as follows:

[0071]

[0072] According to the monitoring data of blockage degradation, porosity and filtration rate of the three sets of devices (the samples were collected after pre-buried), it is believed that the surface layer of the first set of constructed wetlands may be clogged, and the first set A is not operated in a dry-wet state. Composite Vertical Flow Constructed We...

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Abstract

The invention discloses a method and a device for coupling a constructed wetland in composite vertical tidal flow microorganism electrolytic tank. The method comprises the following steps: A, switching electromagnetic valves in a water inlet pipe and a tide pipe respectively; B, enabling the electromagnetic valves to be switched on, and switching the water inlet pipe into a pipeline filter; C, filtering gravel impurity in water by using the pipeline filter; D, enabling a pipeline booster pump to be connected with a time switch; E, for the tide pipe, enabling the booster pump to be standby under the control of a water pressure regulator; F, for the tide pipe, obtaining working time, and controlling the electromagnetic valves to be switched off; G, converting the dry and wet states of the tidal layer of composite vertical tidal flow constructed wetland; H, mounting the device in the wetland; I, regulating the dry and wet conditions of the tidal layer of the wetland. The device is provided with the electromagnetic valves, the pipeline booster pump, the filter, a water collection pipe, a water distribution pipe, the water inlet pipe, the composite vertical flow artificial wetland, a downstream and upstream tank and the tide pipe. The method is easy to operate, the operation is simple and convenient, and the water quality removal rate is improved; the accumulation of organic matters is reduced, and the porosity of the wetland is improved.

Description

technical field [0001] The present invention relates to the technical field of water environment treatment, more specifically to a (TF-MEC-IVCW) method for coupling a composite tidal flow microbial electrolytic cell to a constructed wetland, and also relates to a device for coupling a composite tidal flow microbial electrolytic cell to a constructed wetland , suitable for treating high pollution load sewage. In this technical method, the tidal layer realizes the switching between dry and wet states through the electromagnetic valve, strengthens the level of reoxygenation, and reduces the accumulation of organic matter. Strengthen the microbial metabolism of the relevant denitrification function, and improve the system's removal effect on pollutants. Background technique [0002] As a new type of water treatment process, constructed wetland has been widely used in the treatment of various types of sewage since its promotion; it consists of three parts: substrate, plants and ...

Claims

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Application Information

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IPC IPC(8): C02F3/30C02F3/32C02F3/34C02F3/00C02F101/10C02F101/16
CPCC02F3/005C02F3/006C02F3/308C02F3/32C02F3/34C02F2101/105C02F2101/16Y02W10/10
Inventor 贺锋黄涛吴振斌张义武俊梅周巧红徐栋
Owner INST OF AQUATIC LIFE ACAD SINICA
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