An electrolytic water treatment device with built-in biological rotating disk function

Abstract

The present invention belongs to the technical field of sewage treatment in the discipline of environmental engineering, and specifically relates to an electrolytic water treatment device with a built-in biological rotary disc function, including a treatment box, the inner cavity of the treatment box is divided into an inlet chamber and an electrolytic chamber with an opening at the upper end by a filter plate, the treatment box is located at the upper part of the outer wall of the water inlet chamber and is connected to a water inlet pipe, the treatment box is located at the upper part of the side wall of the electrolytic chamber and is connected to a water outlet pipe, a dirt collecting box is provided at the bottom of the electrolytic chamber, and the bottom end of the water inlet chamber is connected to the dirt collecting box through a sand settling output pipe; an electrolytic water treatment system and a biological rotary disc treatment system are installed in the electrolytic chamber. The present invention has a reasonable structural design, and by installing an electrolytic water treatment system and a biological rotary disc treatment system in the electrolytic chamber, the electrolysis technology and the biological rotary disc technology each play their own advantages, and at the same time, the functions are complementary and mutually beneficial.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment in environmental engineering discipline, and specifically relates to an electrolytic water treatment device with a built-in biological rotating disk function. Background Art

[0002] Electrolysis water treatment technology is known as an "environmentally friendly" technology. The principle is that in an electrolysis chamber, sewage (wastewater) is used as an electrolyte solution, and the redox reaction of the anode and cathode is used to convert electrical energy into chemical energy, and physical and chemical effects, electroflocculation, indirect oxidation or reduction, particle polarization, electroflotation, etc. are produced to purify sewage. The specific effect of electrolysis is related to the materials of the cathode and cathode. For example, when the anode is a soluble material (such as aluminum), metal ions will be generated in the anode area, and then hydrolyzed to produce polyaluminum and polyhydroxy complexes, and pollutants will be gathered in the anode area through adsorption bridging, colloid action, and collection and capture. If the cathode is an inert material (such as a carbon rod), water will be electrolyzed into hydrogen. If there are denitrifying bacteria in the cathode area, the denitrifying bacteria will use the hydrogen generated by electrolysis as an electron donor to cause a denitrification reaction to reduce nitrate nitrogen. At the same time, the generated gas can also be used for electroflotation. Electrolysis water treatment technology has obvious advantages, such as simple equipment, stable operation, no secondary pollution to the water body, and obvious comprehensive effect.

[0003] The biological rotary disc method is a type of biofilm method, which uses the physiological function of the metabolism of microbial communities in nature to purify organic sewage. The biological rotary disc method is to install multiple discs in organic sewage, and microorganisms attach and grow on the discs of the rotary disc, and the rotary disc rotates slowly in the sewage. When the rotary disc enters the sewage, the biofilm degrades the sewage; when the rotary disc rotates out of the sewage and is exposed to the air, oxygen dissolves in the biofilm. Using this alternating operation mode, it becomes a continuous process of oxygen absorption, decomposition, adsorption, etc. The advantages of the biological rotary disc method are: simple operation and management, small amount of residual sludge, simple equipment structure, no need for ventilation, reflux and aeration equipment, high operational flexibility, and small footprint.

[0004] The existing electrolytic water treatment device has some shortcomings during use. First, the flocculent precipitates and impurities formed by its soluble anode material are easily attached to the anode area and the four walls of the electrolysis chamber; second, it does not have the function of biofilm method to treat sewage, and the single electrolysis technology is easy to leave untreated organic matter. Therefore, it needs to be optimized and improved. Summary of the invention

[0005] The purpose of the present invention is to overcome the above problems existing in the conventional technology and to provide an electrolytic water treatment device with a built-in biological rotary disc function.

[0006] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0007] An electrolytic water treatment device with a built-in biological rotary disc function comprises a treatment box, the inner cavity of the treatment box is divided into a water inlet chamber and an electrolysis chamber with an opening at the upper end by a debris filter plate, the treatment box is located at the upper part of the outer wall of the water inlet chamber and is connected to a water inlet pipe, the treatment box is located at the upper part of the side wall of the electrolysis chamber and is connected to a water outlet pipe, a dirt collecting box is provided at the bottom of the electrolysis chamber, and the bottom end of the water inlet chamber is connected to the dirt collecting box through a sand settling output pipe; an electrolytic water treatment system and a biological rotary disc treatment system are installed in the electrolysis chamber.

[0008] Furthermore, in the above-mentioned electrolytic water treatment device with built-in biological turntable function, the electrolytic water treatment system includes a cathode plate, an anode plate and a bipolar auxiliary electrode, the cathode plate and the anode plate are arranged on both sides of the electrolysis chamber and are powered by an external power supply; the bipolar auxiliary electrode is arranged between the cathode plate and the anode plate, and the bipolar auxiliary electrode is composed of a metal grid mesh and rod-shaped metal bars installed at its grid points.

[0009] Furthermore, in the above-mentioned electrolytic water treatment device with built-in biological rotary disk function, the length direction of the rod-shaped metal bar is perpendicular to the surface where the metal grid is located, and the rod-shaped metal bar is divided into two parts by the surface where the metal grid is located, wherein the part close to the cathode plate serves as an auxiliary anode, and the part close to the anode plate serves as an auxiliary cathode.

[0010] Furthermore, in the electrolytic water treatment device with built-in biological rotary disk function, the unit grid holes of the metal grid mesh are rectangular, the grid points are cross grid points, and the specifications of the unit grid holes are (20-40) mm×(20-40) mm.

[0011] Furthermore, in the electrolytic water treatment device with a built-in biological rotary disk function, the auxiliary anode and the auxiliary cathode are each 40-60 mm long.

[0012] Furthermore, in the above-mentioned electrolytic water treatment device with built-in bio-rotor function, the bio-rotor treatment system includes a drive shaft located at the upper part of the electrolysis chamber and a plurality of bio-rotors installed on the drive shaft, the motor connected to the drive shaft is driven by an external power supply, and during the rotation of the bio-rotor with the drive shaft, part of the disk body is always exposed to the air; the bio-rotors are divided into two groups, one group is located in the area between the cathode plate and the bipolar auxiliary electrode, and the other group is located in the area between the anode plate and the bipolar auxiliary electrode.

[0013] Furthermore, in the above-mentioned electrolytic water treatment device with built-in bio-rotor function, the bio-rotor is composed of an impeller-shaped disc, an outer support ring installed on its outer edge and an inner support ring installed on its inner edge, and the bio-rotor is fixed to the drive shaft through the inner support ring.

[0014] Furthermore, in the electrolytic water treatment device with built-in biological rotary disc function, the upper end of the treatment box is supported by a canopy bracket, and the vertical downward projection of the canopy can completely cover the opening of the electrolysis chamber.

[0015] Furthermore, in the above-mentioned electrolytic water treatment device with built-in bio-rotor function, the canopy is used as a mounting frame to install photovoltaic panels, and the photovoltaic panels and related photovoltaic power generation components constitute a photovoltaic power generation system and serve as an external power source for the electrolytic water treatment system and the bio-rotor treatment system.

[0016] Furthermore, in the electrolytic water treatment device with a built-in biological rotary disk function, the canopy bracket is an adjustable photovoltaic bracket capable of adjusting the inclination angle of the photovoltaic panels on the canopy.

[0017] The beneficial effects of the present invention are:

[0018] 1. The present invention installs an electrolytic water treatment system and a biological rotary disk treatment system in the electrolysis chamber, so that the electrolysis technology and the biological rotary disk technology can each play their own advantages, while complementing each other and bringing out the best in each other.

[0019] 2. The electrolytic water treatment system of the present invention is reasonably designed, and is additionally provided with a bipolar auxiliary electrode, which can further treat the surrounding sewage ions with charges and enhance the treatment effect of electrolytic water.

[0020] 3. The biological turntable treatment system of the present invention is reasonably designed. The biological turntable is designed to be impeller-shaped, each disk body is composed of a raised petal-shaped impeller, and the material is made into a rough or porous surface, which is beneficial to increase the area of ​​the biological turntable body; at the same time, it helps to drive the flow of water, so that there are no dead corners in water treatment, and aeration and oxygen enrichment are increased; at the same time, it can flush the electrodes and the four walls of the electrolysis chamber to peel off the attached pollutants.

[0021] 4. The photovoltaic power generation system of the present invention is reasonably designed. The photovoltaic panels can not only generate electricity, but also serve as a canopy to protect the biological turntable, preventing rainwater from eroding the disk and causing the biofilm to fall off, thereby reducing the water treatment effect. The canopy bracket is an adjustable photovoltaic bracket that can adjust the inclination angle of the photovoltaic panels on the canopy to face the light.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the biological turntable treatment system in the present invention;

[0026] Figure 3 It is a structural schematic diagram of the electrolytic water treatment system in the present invention;

[0027] Figure 4 Schematic diagram of electrodes of the electrolytic water treatment system of the present invention;

[0028] In the accompanying drawings, the reference numerals of the various components are as follows:

[0029] 1-treatment box, 2-water inlet pipe, 3-water outlet pipe, 4-impurity filter plate, 5-dirt collecting box, 6-sand output pipe, 7-cathode plate, 8-anode plate, 9-metal grid, 10-rod-shaped metal bar, 11-driving shaft, 12-biological turntable, 121-impeller-shaped disc, 122-outer support ring, 123-inner support ring, 13-awning bracket, 14-awning, 15-sewage pipe. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-4 As shown, this embodiment is an electrolytic water treatment device with a built-in biological rotary disc function, including a treatment box 1, the inner cavity of the treatment box 1 is divided into an inlet chamber and an electrolysis chamber with an opening at the upper end by a barrier filter plate 4, the treatment box 1 is located at the upper part of the outer wall of the water inlet chamber and is connected to a water inlet pipe 2, the treatment box 1 is located at the upper part of the side wall of the electrolysis chamber and is connected to a water outlet pipe 3, a sewage collecting box 5 is provided at the bottom of the electrolysis chamber, the bottom end of the water inlet chamber is connected to the side end of the sewage collecting box 5 through a sand settling output pipe 6, a cone-shaped flow guide chamber is provided between the upper end of the sewage collecting box 5 and the bottom end of the electrolysis chamber, and the lower end of the sewage collecting box 5 is connected to a sewage discharge pipe 15 with an opening valve. The upper and lower parts of the barrier filter plate 4 are provided with solid baffles, and the middle part is a filter screen. The design of the solid baffle can prevent the sediment in the water inlet chamber from entering the electrolysis chamber.

[0032] In this embodiment, an electrolytic water treatment system is installed in the electrolysis chamber, and the electrolytic water treatment system includes a cathode plate 7, an anode plate 8 and a bipolar auxiliary electrode. The cathode plate 7 and the anode plate 8 are arranged on both sides of the electrolysis chamber and are powered by an external power supply; the bipolar auxiliary electrode is arranged between the cathode plate 7 and the anode plate 8, and the bipolar auxiliary electrode is composed of a metal grid mesh 9 and a rod-shaped metal bar 10 installed at its grid points.

[0033] In this embodiment, the length direction of the rod-shaped metal strip 10 is perpendicular to the surface of the metal grid mesh 9. The rod-shaped metal strip 10 is divided into two parts by the surface of the metal grid mesh 9, wherein the part close to the cathode plate 7 serves as an auxiliary anode, and the part close to the anode plate 8 serves as an auxiliary cathode.

[0034] In this embodiment, the unit grid holes of the metal grid net 9 are rectangular, the grid points are cross grid points, and the size of the unit grid holes is 30 mm×30 mm. The length of the auxiliary anode and the auxiliary cathode is 50 mm respectively.

[0035] In this embodiment, a biological turntable treatment system is installed in the electrolysis chamber at the same time. The biological turntable treatment system includes a drive shaft 11 located at the upper part of the electrolysis chamber and a plurality of biological turntables 12 installed on the drive shaft 11. The motor connected to the drive shaft 11 is driven by an external power supply. During the rotation of the biological turntable 12 with the drive shaft 11, part of the turntable body is always exposed to the air; the biological turntable 12 is divided into two groups, one of which is located in the area between the cathode plate 7 and the bipolar auxiliary electrode, and the other is located in the area between the anode plate 8 and the bipolar auxiliary electrode.

[0036] In this embodiment, the bio-rotating disk 12 is composed of an impeller-shaped disc 121, an outer support ring 122 installed on the outer edge thereof, and an inner support ring 123 installed on the inner edge thereof. The outer edge of the impeller-shaped disc 121 is provided with an impeller-shaped frame for connecting the outer support ring 122 and the inner support ring 123, and the impeller-shaped frame is covered with a biofilm. The bio-rotating disk 12 is fixed to the driving shaft through the inner support ring 123.

[0037] In this embodiment, a canopy 14 is supported on the upper end of the processing box 1 through a canopy bracket 13, and the vertical downward projection of the canopy 14 can completely cover the opening of the electrolysis chamber.

[0038] In this embodiment, a photovoltaic panel is installed on the upper side of the canopy 14. The photovoltaic panel and related photovoltaic power generation components constitute a photovoltaic power generation system and serve as an external power source for the electrolytic water treatment system and the biological rotary disk treatment system. The photovoltaic power generation system can directly supply power, or store power in a battery and be powered by the battery. The battery can be a DC battery, or it can be converted from AC to DC through an inverter to meet the needs of the electrolytic water treatment system and the biological rotary disk treatment system for DC or AC power supply. The canopy bracket 13 is an adjustable photovoltaic bracket that can adjust the inclination angle of the photovoltaic panel on the canopy 14.

[0039] A specific application of this embodiment is: put the device into the water and fix it, adjust the bracket of the solar canopy, and adjust the photovoltaic panel to face the light. The sewage is discharged from the water inlet pipe into the water inlet chamber, precipitated and then passed through the impurity filter plate to filter out large particles of impurities and discharged into the electrolysis chamber. Press the start switch button of the device, and the photovoltaic power generation system starts to work. First, the output current drives the drive device to rotate, so that the impeller-shaped biological turntable rotates at a certain speed, plays the function of the biological turntable, and stirs the water at the same time; second, the output current is used for the cathode and anode of the electrolysis chamber to cause chemical changes, electrolyze sewage, or the electrolysis products undergo physical and chemical effects. For example, when the anode material is iron, Fe is generated in the anode area. 2+ , and then generate flocculent or colloidal substances of hydroxide, and collect pollutants on the surface of flocculent through adsorption bridging, colloidal action, and collection and winding netting. When the cathode is an inert material, water is electrolyzed into hydrogen. If there are denitrifying bacteria in the cathode area, the denitrifying bacteria use the hydrogen produced by electrolysis as an electron donor to cause denitrification to reduce nitrate nitrogen. At the same time, the generated gas can also be used for electrical flotation. Under the action of electric current, the bipolar auxiliary electrode further reacts chemically with ions in the water and neutralizes the charge. About 40% of the area of ​​the impeller-shaped biological turntable is below the water surface. When it rotates, the disk body alternately converts and aerates underwater and in the air, and the organic matter in the sewage is enhanced through the action of microorganisms. Although these methods have a small amount of sludge, after a period of time, there will still be sludge deposited in the sewage collection box. After the device moves for a cycle, open the sewage pipe and transfer the sludge out. The supernatant water in the electrolysis chamber is discharged through the outlet pipe.

[0040] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An electrolytic water treatment device with a built-in biological rotary disc function, comprising a treatment box, characterized in that: The inner cavity of the treatment box is divided into a water inlet chamber and an electrolysis chamber with an opening at the upper end by a filter plate, the treatment box is located at the upper part of the outer wall of the water inlet chamber and is connected to a water inlet pipe, the treatment box is located at the upper part of the side wall of the electrolysis chamber and is connected to a water outlet pipe, a dirt collecting box is provided at the bottom of the electrolysis chamber, and the bottom end of the water inlet chamber is connected to the dirt collecting box through a sand settling output pipe; an electrolytic water treatment system and a biological rotary disc treatment system are installed in the electrolysis chamber; The electrolytic water treatment system comprises a cathode plate, an anode plate and a bipolar auxiliary electrode, wherein the cathode plate and the anode plate are arranged on both sides of the electrolysis chamber and are powered by an external power supply; the bipolar auxiliary electrode is arranged between the cathode plate and the anode plate, and the bipolar auxiliary electrode is composed of a metal grid mesh and a rod-shaped metal strip installed at its grid points; The length direction of the rod-shaped metal strip is perpendicular to the surface where the metal grid is located. The rod-shaped metal strip is divided into two parts by the surface where the metal grid is located, wherein the part close to the cathode plate is used as an auxiliary anode, and the part close to the anode plate is used as an auxiliary cathode; The biological turntable treatment system comprises a driving shaft located at the upper part of the electrolytic cell and a plurality of biological turntables mounted on the driving shaft, wherein the motor connected to the driving shaft is driven by an external power source, and during the rotation of the biological turntables along with the driving shaft, a part of the turntable body is always exposed to the air; the biological turntables are divided into two groups, one of which is located in the area between the cathode plate and the bipolar auxiliary electrode, and the other is located in the area between the anode plate and the bipolar auxiliary electrode; The bio-turntable is composed of an impeller-shaped disc, an outer support ring installed on the outer edge thereof, and an inner support ring installed on the inner edge thereof, and the bio-turntable is fixed to the driving shaft via the inner support ring; The upper end of the processing box is supported with a canopy through a canopy bracket, and the vertical downward projection of the canopy can completely cover the opening of the electrolysis chamber.

2. The electrolytic water treatment device with built-in biological rotary disk function according to claim 1 is characterized in that: The unit grid holes of the metal grid net are rectangular, the grid points are cross grid points, and the specifications of the unit grid holes are (20-40) mm×(20-40) mm.

3. The electrolytic water treatment device with built-in biological rotary disk function according to claim 1 is characterized in that: The auxiliary anode and the auxiliary cathode are each 40-60 mm long.

4. The electrolytic water treatment device with built-in biological rotary disk function according to claim 1 is characterized in that: The canopy is used as a mounting frame to install a photovoltaic panel. The photovoltaic panel and related photovoltaic power generation components constitute a photovoltaic power generation system and serve as an external power source for the electrolytic water treatment system and the biological rotary disk treatment system.

5. The electrolytic water treatment device with built-in biological rotary disk function according to claim 4 is characterized in that: The canopy bracket is an adjustable photovoltaic bracket capable of adjusting the inclination angle of the photovoltaic panels on the canopy.

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