Electrochemical water treatment device with ecological assistance of floating bed plants

Abstract

The utility model discloses an electrochemical water treatment device utilizing floating bed plant ecology assistance, which comprises a floating bed plant treatment area and an electrochemical treatment area, the lower part of the floating bed plant treatment area comprises a floating bed plant treatment pond, and the upper part of the floating bed plant treatment area is provided with a floating bed plant substrate layer; the upper portion of the floating bed plant substrate layer is formed by alternating solar power generation panel areas and aquatic plant planting areas, aquatic plants are planted in the aquatic plant planting areas, a second water outlet pipe is arranged on the pool wall of one side of the floating bed plant treatment pool, and the electrochemical treatment area is composed of an electrochemical treatment pool, an anode area and a cathode area. A filter membrane is arranged between the anode region and the cathode region, and a lower end fixing plate and an upper end fixing plate are arranged on the filter membrane. Compared with the prior art, the utility model has the advantage that the utility model can be used.

Description

Technical Field

[0001] The utility model relates to the field of water treatment equipment, in particular to an electrochemical water treatment device assisted by floating bed plant ecology. Background Art

[0002] Production and life generate a large amount of sewage and wastewater. In order to ensure the sustainable development and recycling of water resources, it is imperative to treat pollution and purify water. Good water treatment technology and efficient water treatment equipment can accelerate the process of water pollution control and make the water environment develop healthily.

[0003] At present, there are many advanced technologies for water treatment. Electrocoagulation technology produces soluble cations in the anode area, which develop into various hydroxyl complexes, polynuclear hydroxyl complexes and even hydroxides through a series of hydrolysis, polymerization and oxidation processes, so that colloidal impurities and suspended impurities in the wastewater are condensed and precipitated for separation. When wastewater is treated with electrolytic flocculation, it not only has a condensation and precipitation effect on colloidal impurities and suspended impurities, but also can remove a variety of pollutants in the water due to the oxidation effect of the anode and the reduction effect of the cathode.

[0004] Magnetic separation technology is a technology that uses magnetic field to treat substances. It uses the magnetism of impurity particles in wastewater to separate them. For non-magnetic or weakly magnetic particles in water, magnetic inoculation technology can make them magnetic, and with the help of external magnetic field, the magnetic suspended solids in the wastewater can be separated, thereby achieving the purpose of purifying water.

[0005] Electroflotation technology is a technology that generates bubbles, such as hydrogen, on the surface of the cathode or anode during the electrolysis of water. During the rising process, they can adhere to impurity particles and oil in the water and float to the surface of the water; membrane separation technology is a general term for the selective permeation of certain components in the liquid using special membranes. Commonly used membranes include microfiltration membranes (MF), ultrafiltration membranes (UF), nanofiltration membranes (NF), etc. Hydrogen-rich technology plays a certain role in plant stress resistance, mainly by regulating reactive oxygen species (ROS) to participate in the process of plant stress resistance. In the process of plant resistance to salt, metal ion and pesticide damage, hydrogen repairs oxidative damage by removing ROS. Hydrogen also regulates the expression of genes related to plant resistance to diseases and pests.

[0006] The floating bed plant root system water purification technology is to transplant aquatic plants with water purification, ornamental and economic value or terrestrial herbs and woody plants that have been improved and domesticated to the surface of eutrophic water bodies for planting, and use ecological floating boards that can float on the water surface and withstand heavy weight as carriers. Through the absorption, adsorption and interception of the powerful roots of plants deep in the water, the mechanism of species competition and antagonism, and the biochemical degradation of microorganisms, the N, P and organic matter in the eutrophic water bodies are reduced, thereby achieving the effect of purifying water quality. At the same time, it can also create a good water landscape and beautify the environment.

[0007] According to existing technology:

[0008] 1. The electrochemical water treatment mode technology is single and the water output effect is poor;

[0009] 2. The surface of the anode plate is easily covered by sediment, flocculent area and sludge after long-term use;

[0010] 3. The utilization rate of bubbles generated by electrical flotation is low and the effect is poor;

[0011] 4. There are few devices that combine membrane separation technology with flocculation technology. Utility Model Content

[0012] In order to solve the above problems, the technical solution of the utility model is: an electrochemical water treatment device using floating bed plant ecology as an aid, comprising a floating bed plant treatment area and an electrochemical treatment area, wherein the lower part of the floating bed plant treatment area comprises a floating bed plant treatment pool, and the upper part is provided with a floating bed plant matrix layer, the upper part of the floating bed plant matrix layer is alternately composed of a solar power generation panel area and an aquatic plant planting area, aquatic plants are planted in the aquatic plant planting area, and a second water outlet pipe is provided on the pool wall on one side of the floating bed plant treatment pool;

[0013] The electrochemical treatment area is composed of an electrochemical treatment cell, an anode area and a cathode area;

[0014] An anode plate is provided at the upper part of the anode area, and an anode plate wiring button is provided on the outer side of the pool wall of the anode plate, and the anode plate wiring button is fixedly connected with an anode wire, and a water inlet pipe and a magnetic powder adder are provided on the outer side of the pool wall of the anode area, and the pipe mouth of the water inlet pipe is higher than the anode plate, and a magnetic powder adding port is provided above the magnetic powder adder, and an agitator is provided inside the magnetic powder adder, and the source of water for the magnetic powder adder is the inlet water or the return water;

[0015] A cathode plate is provided at the lower part of the cathode zone, and the cathode plate is provided with a cathode plate connection button located on the outer side of the pool wall, and a cathode wire is fixedly connected to the cathode plate connection button. A defoaming filter material is provided at the upper part of the cathode zone, which is separated from the upper device in space, and a first water outlet pipe is provided at the upper end of the outer side of the pool wall of the cathode zone;

[0016] A filter membrane is provided between the anode region and the cathode region, and the filter membrane is located between the lower fixed plate and the upper fixed plate;

[0017] A magnetic separation area is provided at the lower end of the anode area, a magnetic adsorption plate is provided inside the magnetic separation area, a scraper is installed on the magnetic adsorption plate, a sediment outlet is provided at the lower right part of the magnetic separation area, and a return pipe is provided at the upper right end of the magnetic separation area, and sewage flows back to the anode area through a pump and the return pipe;

[0018] The electrochemical treatment tank is connected with a tank body interface, and the electrochemical treatment tank is connected with the floating bed plant treatment tank through the tank body interface.

[0019] As an improvement: the interface between the magnetic powder adder and the anode area is lower in height than the water inlet pipe and the anode plate.

[0020] As an improvement: the filter membrane can be made of ultrafiltration membrane pore material.

[0021] As an improvement: the anode plate is arranged at the upper part of the anode area, and the cathode plate is arranged at the lower part of the water body. The anode plate and the cathode plate are respectively composed of multiple plates with gaps in between.

[0022] As an improvement: a defoaming filter material is provided on the upper part of the cathode plate, and the defoaming filter material can be made of porous material.

[0023] As an improvement: a return water pump is provided on the right side of the magnetic separation area.

[0024] The advantages of the utility model compared with the existing technology are:

[0025] (1) The anode plate of the utility model is located at the upper part, which is not easily covered by the flocculent sediment and other impurities. The cathode plate is located at the lower part, and the generated bubbles are easy to go up and stay in the water for a long time, which plays a full role in floating the impurities in the water.

[0026] (2) The wastewater is separated by a filter membrane, making the electrochemical water treatment present a dual-zone dual-mode. The functions of the yin and yang zones are distinct and each performs its own duties. The synergistic effect of multiple technologies such as electrocoagulation, magnetic separation, electrical flotation, membrane separation, hydrogen enrichment, and plant purification is used to ensure the efficiency and effectiveness of the effluent water quality.

[0027] (3) The defoaming filter layer can intercept bubbles that are contaminated with impurities. The bubbles in the filter layer can move upward to the floating bed plant treatment area to form a hydrogen-rich habitat, which helps to relieve or weaken the stress environment of aquatic plants.

[0028] (4) The device uses floating bed plant root system water purification technology to enhance the degree of sewage purification and improve the ecological restoration function. At the same time, aquatic plants have a good effect on removing nitrogen, phosphorus and heavy metal ions in water, and also play a certain role in purifying the air.

[0029] (5) The cathode produces hydrogen, which is naturally released to the plant area without the need to set up separate hydrogen cylinders or other equipment, which is safe and environmentally friendly. In addition, hydrogen-enriched technology is used to regulate plant growth and development, improve yield quality, and enhance plant stress resistance.

[0030] (6) The magnetic powder is settled along with the flocculents at the end of the water treatment process, making the water treatment process more environmentally friendly. The magnetic powder can be recycled and reused. The anode plate and cathode plate are installed in a pull-out style for easy replacement. The defoaming filter material is placed in a wire mesh box to form a thin filter material layer that can be taken out for regeneration or replacement. The device combines electrochemical methods, physical methods and floating bed plant technology, which is highly enhanced. It has both water treatment process and plant cultivation functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a front view of an electrochemical water treatment device assisted by floating bed plant ecology according to the utility model.

[0032] Figure 2 The utility model is a three-dimensional diagram of an aquatic plant treatment area of ​​an electrochemical water treatment device assisted by floating bed plant ecology.

[0033] Figure 3 The utility model is a top view of an aquatic plant treatment area of ​​an electrochemical water treatment device assisted by floating bed plant ecology.

[0034] Figure 4 The utility model is a stereoscopic diagram of an electrochemical treatment area of ​​an electrochemical water treatment device using floating bed plant ecology as an aid.

[0035] As shown in the figure: 1-electrochemical treatment tank; 2-cathode area; 3-cathode plate; 4-cathode plate wiring button; 41-cathode wire; 5-anode area; 6-anode plate; 7-anode plate wiring button; 71-anode wire; 81-filter membrane lower end fixing plate; 82-filter membrane upper end fixing plate; 9-filter membrane; 10-defoaming filter material; 11-water inlet pipe; 12-magnetic powder adder; 13-magnetic powder adding port; 14-agitator; 15-flocculation sediment outlet; 16-magnetic separation area; 17-magnetic adsorption plate; 18-scraper; 19-sediment outlet; 20-pump; 21-return pipe; 221 first outlet pipe; 222-second outlet pipe; 23-aquatic plant treatment tank; 24-aquatic plant matrix layer; 25-aquatic plants; 26-solar power generation panel; 27-aquatic plant planting area; 28-interface between two tank bodies. DETAILED DESCRIPTION

[0036] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, wherein the same parts are represented by the same reference numerals.

[0037] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0038] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0039] like Figures 1 to 4 As shown, an electrochemical water treatment device using floating bed plant ecology as an aid is structured into two parts: a floating bed plant treatment area and an electrochemical treatment area; the lower part of the floating bed plant treatment area is a floating bed plant treatment pool 23, and the upper part is a floating bed plant matrix layer 24, and the upper part of the floating bed plant matrix layer 24 is alternately composed of a solar power generation panel 26 area and an aquatic plant planting area 27; aquatic plants 25 are planted in the aquatic plant planting area 27. A second water outlet pipe 222 is provided on the pool wall on one side of the floating bed plant treatment pool 23, and the electrochemical treatment pool 1 in the electrochemical treatment area is mainly composed of an anode area 5 and a cathode area 2.

[0040] Anode plate 6 is provided on the upper part of the anode area 5. Anode plate 6 is located outside the pool wall and has anode plate connection button 7 for fixed connection of anode wire 71. Water inlet pipe 11 and magnetic powder adder 12 are provided outside the pool wall of the anode area 5; the mouth of water inlet pipe 11 is higher than anode plate 6; magnetic powder adder 13 is provided above magnetic powder adder 12, and a stirrer 14 is provided inside for fully mixing magnetic powder with influent water; the water source of magnetic powder adder 12 is influent water or return water.

[0041] A cathode plate 3 is provided at the lower part of the cathode zone 2. The cathode plate 3 is located on the outer side of the pool wall and has a cathode plate wiring button 4 for fixing the cathode wire 41. A defoaming filter material 10 is provided at the upper part of the cathode zone 2 to separate it from the upper device in space. A first water outlet pipe 221 is provided at the upper end of the outer side of the pool wall of the cathode zone 2. The anode zone 5 and the cathode zone 2 are separated by a filter membrane 9, and the filter membrane 9 is fixed between a fixing plate 81 at the lower end of the filter membrane and a fixing plate 82 at the upper end of the filter membrane.

[0042] The magnetic separation area 16 is located at the lower end outside the anode area, and the flocculation and other sediments are discharged from the anode into the magnetic separation area 16 through a pump. A magnetic adsorption plate 17 is provided inside the magnetic separation area 16 for magnetically separating the sewage and the flocculation; a scraper 18 is installed on the magnetic adsorption plate 17 for assisting in scraping out the sediment; a sediment outlet 19 is provided at the lower right side of the magnetic separation area 16, and the separated sewage flows back to the anode area through a pump 20 and a return pipe 21.

[0043] The electrochemical treatment tank 1 is connected to the floating bed plant treatment tank 23 at the interface 28 between the two tank bodies, and the water body flows upward or downward therefrom.

[0044] There is an adjustment button at one end of the bottom of the solar power generation panel 26, which can adjust the support rod to make the power generation panel face the light. The power generated by the solar power generation panel 26 is used by various devices required for power consumption.

[0045] The magnetic powder adder 12 is arranged at the lower part of the water inlet pipe 11 and the anode plate 6 in terms of depth to prevent the magnetic powder from adhering to the anode plate 6 and affecting the electrode function.

[0046] The filter membrane 9 between the cathode region 2 and the anode region 5 can retain macromolecular substances in the anode region 5, and small molecular substances enter the cathode region 2. The filter membrane 9 can be made of ultrafiltration membrane pore material, which can retain macromolecular substances, such as organic pollutant molecules, micelles, flocculants, etc. in the anode region.

[0047] The anode plate 6 is arranged on the upper part of the anode area 5 to prevent the flocs produced by the reaction from covering the anode plate 6 and affecting the function of the electrode. The cathode plate 3 is arranged at the lower part of the water body, which can make the generated bubbles have a longer rising time in the water body, which is conducive to the flotation effect. The anode plate 6 and the cathode plate 3 are respectively composed of multiple plates with gaps in the middle.

[0048] The defoaming filter material 10 is arranged on the upper part of the cathode plate 3, and has the function of breaking bubbles and trapping pollutants and impurities. The defoaming filter material 10 can be made of porous material; at the same time, excess hydrogen can escape from the floating bed plant treatment area to help the plants above resist stress.

[0049] The return pump is located on the right side of the magnetic separation area, and can return the separated sewage to the anode area 5 for reprocessing. The device has two outlet pipes, which can be operated and used according to the water demand of the device. In order to prevent the problem of uneven water treatment in the anode and cathode areas, an agitator 14 can be added. The device can treat sewage and wastewater. If the wastewater containing heavy metal ions is treated, the chemical action of the cathode area 2 also includes removing heavy metal ions. In addition, when the material of the anode and cathode electrode plates is changed, the chemical changes in the pool will also change accordingly.

[0050] In specific use, the lower part of the floating bed plant treatment area is a floating bed plant treatment pool 23, and the upper part is a floating bed plant matrix layer 24. The upper part of the floating bed plant matrix layer 24 is alternately composed of a solar panel 26 area and an aquatic plant planting area 27; aquatic plants 25 are planted in the aquatic plant planting area 27. A second water outlet pipe 222 is provided on the pool wall of one side of the floating bed plant treatment pool 23.

[0051] 1. Installation of electrochemical treatment area and floating bed plant treatment area:

[0052] The anode plate 6 is installed on the upper part of the anode area 5, and the anode wire 71 is fixedly connected to the anode plate wiring button 7; the cathode plate 3 is installed on the lower part of the cathode area 2, and the cathode wire 41 is fixedly connected to the cathode plate wiring button 4. The filter membrane 9 is fixed between the lower end fixing plate 81 of the filter membrane and the upper end fixing plate 82 of the filter membrane to separate the anode area 5 and the cathode area 2. The defoaming filter material 10 on the upper part of the cathode area 2 is fixed well, and is separated from the floating bed plant treatment area in space.

[0053] Install the agitator 14 and the magnetic powder adding port 13 of the magnetic powder adding device 12.

[0054] Install the magnetic adsorption plate 17 and the scraper 18 inside the magnetic separation area 16.

[0055] The aquatic plant treatment tank 23 and the electrochemical treatment tank 1 are fixedly connected at the interface 28 of the two tank bodies.

[0056] 2. Device operation (taking sewage treatment as an example)

[0057] First, the two solar panels 26 are propped up at a certain angle to face the sun, increasing the contact area with the sun and providing electricity for the device. The aquatic plants are planted in the aquatic plant planting area 27; all the valves of the water outlet pipes and the flocculation sediment outlet 15 are closed to start the first water intake. The water inlet 11 is opened, and the water flows down from the anode area 5, passes through the filter membrane 9, gradually enters the cathode area 2, and then filters through the defoaming filter material 10 and enters the aquatic plant treatment pool 23 until it is full.

[0058] Start the power supply, the anode plate 6 produces soluble cations (such as aluminum ions, ferrous ions, etc.), which undergo a series of hydrolysis, polymerization and oxidation processes to develop into various hydroxyl complexes, polynuclear hydroxyl complexes and even hydroxides, etc., which have adsorption and encapsulation effects. At the same time, the water inlet valve of the magnetic powder adder 12 and the valve of the magnetic powder adding port 13 are opened, and under the action of the agitator 14, the incoming water and the magnetic powder are fully mixed and flow into the anode area. At this time, the floccules, macromolecular pollutants and magnetic powder form a flocculent mass that is coagulated together, and has magnetism, is heavy and easy to precipitate at the bottom of the tank, so that it condenses and precipitates and separates. In addition, the oxidation of the anode can remove a variety of pollutants in the water.

[0059] Under the action of the filter membrane 9, macromolecular substances are retained in the anode area 5, and small molecular substances are filtered to the cathode area 2. A large amount of hydrogen generated by the cathode plate 3 continuously adheres to impurities during the rising process to produce flotation. When it reaches the defoaming filter material 10, it intercepts the bubbles with impurities. The bubbles in the filter layer can ascend to the floating bed plant treatment area to form a hydrogen-rich habitat, which helps to relieve or weaken the stress environment of aquatic plants.

[0060] The flocculent pollutants generated by the anode plate 6 are precipitated to the bottom of the anode area 5 and are pumped to the magnetic separation area 16 by the action of the pump 20, where magnetic separation occurs. Specifically, the flocculent pollutants adhere to the plate under the action of the magnetic adsorption plate 17, and can be scraped downward by the scraper 18 to the sediment outlet 19. The separated sewage flows back to the anode area 5 through the pump 20 and the return pipe 21.

[0061] After running for a period of time, the water can be discharged according to the water storage capacity of the device to discharge the treated water.

[0062] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. An electrochemical water treatment device using floating bed plant ecology, characterized in that: The invention comprises a floating bed plant treatment area and an electrochemical treatment area, wherein the lower part of the floating bed plant treatment area comprises a floating bed plant treatment pool (23), and the upper part is provided with a floating bed plant matrix layer (24); the upper part of the floating bed plant matrix layer (24) is alternately composed of a solar power generation panel (26) area and an aquatic plant planting area (27); aquatic plants (25) are planted in the aquatic plant planting area (27); and a second water outlet pipe (222) is provided on the pool wall of one side of the floating bed plant treatment pool (23); The electrochemical treatment area is composed of an electrochemical treatment cell (1), an anode area (5) and a cathode area (2); An anode plate (6) is provided on the upper part of the anode area (5), and an anode plate wiring button (7) is provided on the outer side of the pool wall of the anode plate (6), and an anode wire (71) is fixedly connected to the anode plate wiring button (7). A water inlet pipe (11) and a magnetic powder additive (12) are provided on the outer side of the pool wall of the anode area (5), and the pipe mouth of the water inlet pipe (11) is located higher than the anode plate (6). A magnetic powder adding port (13) is provided above the magnetic powder additive (12), and an agitator (14) is provided inside the magnetic powder additive (12). The water source of the magnetic powder additive (12) is the inlet water or the return water. A cathode plate (3) is provided at the lower part of the cathode zone (2), and a cathode plate wiring button (4) is provided on the outer side of the pool wall of the cathode plate (3), and a cathode wire (41) is fixedly connected to the cathode plate wiring button (4). A defoaming filter material (10) is provided at the upper part of the cathode zone (2), which is spatially separated from the upper device. A first water outlet pipe (221) is provided at the upper end of the outer side of the pool wall of the cathode zone (2); A filter membrane (9) is provided between the anode region (5) and the cathode region (2), and the filter membrane (9) is located between a lower fixed plate (81) and an upper fixed plate (82); A magnetic separation area (16) is provided at the lower end of the anode area (5), a magnetic adsorption plate (17) is provided inside the magnetic separation area (16), a scraper (18) is installed on the magnetic adsorption plate (17), a sediment outlet (19) is provided at the lower right part of the magnetic separation area (16), and a pump (20) and a return pipe (21) are provided at the upper end of the outer side of the magnetic separation area (16); a cell body interface (28) is connected to the electrochemical treatment cell (1), and the electrochemical treatment cell (1) is connected to the floating bed plant treatment cell (23) via the cell body interface (28).

2. The electrochemical water treatment device using floating bed plant ecology as an aid according to claim 1, characterized in that: The magnetic powder adder (12) and the anode area interface are lower in height than the water inlet pipe and the anode plate (6).

3. The electrochemical water treatment device using floating bed plant ecology as an aid according to claim 1, characterized in that: The filter membrane (9) may be made of ultrafiltration membrane pore material.

4. The electrochemical water treatment device using floating bed plant ecology as an aid according to claim 1, characterized in that: The anode plate (6) is arranged on the upper part of the anode region, and the cathode plate (3) is arranged on the cathode region. (2) In the lower part, the anode plate (6) and the cathode plate (3) are respectively composed of a plurality of plates with gaps in between.

5. The electrochemical water treatment device using floating bed plant ecology as an aid according to claim 1, characterized in that: A defoaming filter material (10) is provided on the upper part of the cathode plate (3), and the defoaming filter material (10) can be made of a porous material.

6. The electrochemical water treatment device using floating bed plant ecology as an aid according to claim 1, characterized in that: A return water pump is provided on the right side of the magnetic separation area (16).

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