Trickle bed type wastewater degradation device

Abstract

The utility model discloses a trickle bed type wastewater degradation device, which relates to the technical field of wastewater treatment equipment and is characterized in that uncharged or positively charged substances in wastewater are fully contacted with an anode electrode by improving the distribution of electrodes and the structure of a reactor, so that the reaction degradation effect is effectively improved; according to the scheme, the trickle bed type wastewater degradation device comprises an electrolytic bath body and a bath cover arranged on the electrolytic bath body, at least one electrolysis chamber and a water storage chamber are arranged in the electrolytic bath body, and wastewater treated by the electrolysis chamber overflows to the water storage chamber after being fully stored; the tank cover comprises a tank cover cavity, a first electrode mounting hole group is formed in the tank cover cavity, cathode electrodes and anode electrodes are sequentially and alternately arranged in the first electrode mounting hole group, and the cathode electrodes and the anode electrodes penetrate through the electrode mounting holes to extend into the electrolysis chamber; and a dripping hole is also formed in the mounting hole of the anode electrode.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment equipment, specifically to a trickle bed type wastewater degradation device. Background Technology

[0002] With the rapid growth of industries such as petrochemicals, pharmaceuticals, pesticide synthesis, and dye manufacturing, the types of non-biodegradable organic compounds appearing in domestic wastewater, industrial wastewater, or landfill leachate are increasing continuously. Their negative impact on ecosystems and human health is also expanding, becoming an environmental problem that urgently needs to be solved.

[0003] Studies have shown that electrochemical catalytic oxidation, an advanced oxidation technology that has been increasingly applied in recent years, has advantages such as low catalyst usage, ease of large-scale and intelligent production, simple operation, and no secondary pollution. It is considered an environmentally friendly technology that can achieve the triple goals of energy saving, carbon reduction, and increased production capacity. However, due to limitations in the design technology of electrolysis devices, some uncharged or positively charged substances cannot reach the anode, resulting in low treatment efficiency for organic wastewater and affecting the overall wastewater treatment effect. Utility Model Content

[0004] I. Technical problems to be solved

[0005] This invention addresses the shortcomings of existing technologies by proposing a trickle-bed wastewater degradation device. Through improvements to the electrode distribution and reactor structure, the wastewater comes into contact with the anode electrode, allowing the negative charges in the wastewater to directly participate in the reaction at the anode. Meanwhile, the remaining positive charges enhance the anode effect during the flow process, resulting in higher anode reaction efficiency.

[0006] A trickle bed wastewater degradation device includes an electrolytic cell and a cover mounted on the electrolytic cell. The electrolytic cell contains at least one electrolysis chamber and a water storage chamber. Wastewater treated in the electrolysis chamber overflows into the water storage chamber when full. The cover includes a cover cavity containing a first electrode mounting hole group. A cathode electrode and an anode electrode are alternately arranged in the first electrode mounting hole group, both extending through the first electrode mounting hole group into the electrolysis chamber. A trickle hole is also provided at the mounting hole of the anode electrode. The device also includes a circulating water pump. The inlet of the circulating water pump is connected to the bottom of the water storage chamber via a pipe, and the outlet of the circulating water pump is connected to the cover cavity via a pipe.

[0007] Implementation principle and working principle:

[0008] The principle of this solution is as follows: First, the cathode and anode electrodes are alternately installed into the first electrode mounting hole group. Then, the wastewater to be treated is introduced into the tank cover cavity. The wastewater flows from the anode electrode into the electrolysis chamber through the drip hole at the anode electrode in the tank cover cavity. In the electrolysis chamber, the anode electrode and cathode electrolysis are energized to degrade the wastewater. Since the wastewater enters the electrolysis chamber directly from the anode electrode, it is in full contact with the anode electrode, allowing the negative charge in the wastewater to participate in the reaction at the anode. The remaining positive charge enhances the anode effect during the flow, making the anode reaction more efficient. After the wastewater in the electrolysis chamber is full, it overflows into the storage chamber for water storage. Compared with conventional existing technologies, this solution can achieve the reaction of positively charged substances at the anode without the need for an external electric field, resulting in lower costs. The circulating water pump can continuously guide the wastewater in the storage chamber back to the tank cover for recycling, resulting in better degradation effect.

[0009] Preferably, the upper part of the tank cover cavity is provided with a cover plate, and the cover plate is provided with a pipe installation hole, through which the pipe connected to the outlet of the circulating water pump extends into the tank cover cavity.

[0010] Preferably, a baffle plate is also provided inside the tank cover cavity. There are multiple baffle plates, and the baffle plates are arranged around the electrode mounting holes. The beneficial effect of this preferred option is that by setting the baffle plates, wastewater is prevented from seeping into the electrolysis chamber from the electrode mounting holes, reducing the contact between uncharged or positively charged substances and anodic electrolysis, thus affecting the reaction effect.

[0011] Preferably, the electrolytic cell includes two sets of opposing side plates, with a first partition and a second partition disposed between either set of opposing side plates; the electrolysis chamber includes a first electrolysis chamber and a second electrolysis chamber, the first electrolysis chamber being formed by connecting the first partition and the side plates, and the second electrolysis chamber being formed by connecting the first partition, the second partition, and the side plates respectively, wherein the upper end of the second partition is lower than the height of the first partition; the advantage of this preferred embodiment is that the first electrolysis chamber, the second electrolysis chamber, and the water storage chamber can be isolated by the side plates and the first and second partitions, resulting in a simple structure; the upper end height of the second partition and the upper end height of the first partition can prevent the backflow of treated wastewater, which would affect the treatment effect.

[0012] Preferably, the tank cover is also provided with a second electrode mounting hole group, the first electrode mounting hole group corresponds to the first electrolysis chamber, and the second electrode mounting hole group corresponds to the second electrolysis chamber. The beneficial effect of this preferred option is that the electrodes set by the first electrode mounting hole group and the second electrode mounting hole group can effectively treat the sewage in the first electrolysis chamber and the second electrolysis chamber in sequence, resulting in better treatment effect.

[0013] Preferably, a baffle plate is also provided around the outer side of each electrode mounting hole in the second electrode mounting hole group, and the cathode and anode electrodes alternately arranged in the second electrode mounting hole group extend into the second electrolysis chamber.

[0014] Preferably, the anode electrode of the first electrode mounting hole group has multiple drip holes, and a guide groove is also provided in the bottom plate of the tank cover. The guide groove is located directly below the drip holes and is used to guide the wastewater to the anode electrode. The beneficial effect of this preferred embodiment is that when the drip holes drip wastewater, it will preferably drip into the guide groove. Under the action of the guide groove, the wastewater is fully guided to the anode electrode, avoiding splashing of wastewater in the electrolysis chamber during dripping.

[0015] Preferably, the tank cover is also provided with an overflow cylinder, the upper end of which is higher than the bottom plate, and the overflow channel inside the overflow cylinder is connected to the water storage chamber. The beneficial effect of this preferred embodiment is that when the wastewater level in the tank cover cavity is too high, the wastewater will flow back to the water storage chamber through the overflow channel of the overflow cylinder.

[0016] Preferably, the distance between adjacent cathode and anode electrodes is 1cm-3cm. The advantage of this preferred setting is that if the distance is too small, there is a risk of short circuit between the electrodes, while if the distance is too large, the electrolysis efficiency will be reduced. Therefore, the setting of this distance parameter can maximize the electrolysis efficiency while ensuring electrolysis safety.

[0017] The beneficial effects of this utility model are as follows:

[0018] The structural design of the tank cover and the electrolytic cell body in this scheme allows wastewater to drip from the drip holes onto the anode electrode, ensuring that uncharged or positively charged substances in the wastewater fully contact the anode electrode for better treatment results. Simultaneously, the drip-flow method, where wastewater flows continuously downwards in the form of a thin liquid film, creates a very thin liquid layer with low overall mass transfer resistance and a large reaction area. This allows negatively charged and neutral substances in the wastewater to react directly at the anode. The positive charges left after the reaction enhance the effect of the anode electrode as they flow along it, further improving the degradation efficiency of the anode. Attached Figure Description

[0019] Figure 1 This is a side cross-sectional schematic diagram of the single electrolysis chamber of the trickle bed wastewater degradation device in this scheme.

[0020] Figure 2 This is a side cross-sectional schematic diagram of the double electrolysis chamber of the trickling bed wastewater degradation device in this scheme.

[0021] Figure 3 This is an isometric drawing of the tank cover for the trickle bed wastewater degradation device in this scheme.

[0022] Figure 4 This is an isometric schematic diagram of the electrolytic cell of the trickle bed wastewater degradation device in this scheme.

[0023] Figure 5 This is a top view of the tank cover of the trickle bed wastewater degradation device in this scheme.

[0024] Explanation of reference numerals in the attached figures:

[0025] Electrolytic cell body 100, electrolysis chamber 101, water storage chamber 102, circulating water pump 103, first partition 104, second partition 105, first electrolysis chamber 106, second electrolysis chamber 107, side plate 108, tank cover 200, tank cover cavity 201, first electrode mounting hole group 202, cathode electrode 203, anode electrode 204, drip hole 205, cover plate 206, pipe mounting hole 207, baffle plate 208, second electrode mounting hole group 209, bottom plate 210, guide channel 211, overflow cylinder 212. Detailed Implementation

[0026] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0027] Examples, such as Figures 1-5 As shown:

[0028] When implementing, such as Figure 1 As shown, a trickle bed wastewater degradation device includes an electrolytic cell 100 and a cover 200 installed on the electrolytic cell 100. An electrolysis chamber 101 and a water storage chamber 102 are arranged on the left side of the electrolytic cell 100. In practice, the wastewater treated in the electrolysis chamber 101 overflows from the right side of the electrolysis chamber 101 into the water storage chamber 102 when the chamber is full. Specifically, the cover 200 includes a cover cavity 201, such as... Figure 5 A first electrode mounting hole group 202 is provided in the groove cover cavity 201; for example Figure 3 In this design, cathode electrode 203 and anode electrode 204 are alternately arranged in sequence within the first electrode mounting hole group 202. Specifically, cathode electrode 203 and anode electrode 204 are fixed in the first electrode mounting hole group 202 by snap-fit ​​connection. Both cathode electrode 203 and anode electrode 204 extend into the electrolysis chamber 201 through the electrode mounting holes 202 and the bottom plate 210 of the tank cover. Figure 4 and Figure 5Multiple drip holes 205 are provided on both sides of the mounting hole of the anode electrode 204, and a guide groove 211 is provided at the bottom of the drip hole 205.

[0029] The structural design of the tank cover 200 and the electrolytic cell 100 in this scheme allows wastewater to drip from the drip hole 205 into the guide channel 211 and then be guided to the anode electrode 204. This ensures that uncharged or positively charged substances in the wastewater fully contact the anode electrode 204, resulting in better treatment. Furthermore, the drip-flow method ensures that the wastewater flows continuously downwards in the form of a thin liquid film. This drip-flow method creates a very thin liquid layer with low overall mass transfer resistance and a large reaction area. This allows neutral or positively charged recalcitrant organic compounds in the wastewater to more fully contact the anode electrode 204, enhancing the effect of the anode electrode 204 and thus improving degradation efficiency.

[0030] like Figure 1 In practical implementation, to further improve the degradation effect, this trickle bed wastewater degradation device also includes a circulating water pump 103. The circulating water pump 103 can be installed inside or outside the electrolytic cell 100. The inlet of the circulating water pump 103 is connected to the bottom of the water storage chamber 102 via a pipe, and the outlet of the circulating water pump 103 is connected to the tank cover cavity 201 via a pipe. Figure 2 To facilitate pipe installation, a pipe installation hole 207 is provided on the cover plate 206 at the top of the tank cover cavity 201. The pipe connected to the outlet of the circulating water pump 103 extends into the tank cover cavity 201 through the pipe installation hole 207. The circulating water pump allows the wastewater to be electrolyzed multiple times, resulting in better treatment.

[0031] When implementing, such as Figure 2 A baffle plate 208 is integrally formed inside the tank cover cavity 201. There are multiple baffle plates 208, and the baffle plates 208 are installed around each mounting hole of the first electrode mounting hole group 202. By setting the baffle plates 208, wastewater is effectively prevented from seeping into the electrolysis chamber 101 from the electrode mounting holes 202, reducing the contact between uncharged or positively charged substances and anodic electrolysis, thus affecting the reaction effect.

[0032] During implementation, in order to further improve the wastewater treatment effect, such as Figure 2 and Figure 4The electrolytic cell 101 is equipped with a first electrolysis chamber 106 and a second electrolysis chamber 107. Wastewater is subjected to secondary electrolysis through these two chambers, resulting in higher treatment efficiency. Specifically, the electrolytic cell 101 includes two sets of opposing side plates 108 forming a cubic cell. A first partition 104 and a second partition 105 are integrally formed between any set of opposing side plates 108. The first electrolysis chamber 106 is formed by connecting the first partition 104 and the side plates 108. The second electrolysis chamber 107... 07 is formed by connecting the first partition 104, the second partition 105 and the side plate 108 respectively, wherein the upper end of the second partition 105 is lower than the upper end of the first partition 104; the first electrolysis chamber 106, the second electrolysis chamber 107 and the water storage chamber 102 can be isolated by the side plate and the first partition 104 and the second partition 105, which is simple in structure; the upper end of the second partition 105 is the same as the upper end of the first partition 104. This setting can avoid the backflow of treated wastewater and affect the treatment effect.

[0033] In implementation, to correspond with the second electrolysis chamber 107, a second electrode mounting hole group 209 is provided at the corresponding position on the tank cover 200. The first electrode mounting hole group 202 corresponds to the first electrolysis chamber 106, and the second electrode mounting hole group 202 corresponds to the second electrolysis chamber 107. The second electrode mounting hole group 209 does not need to be provided with drip holes. The corresponding second electrolysis chamber 107 is used to treat the wastewater overflowing from the first electrolysis chamber 106. The electrodes set through the first electrode mounting hole group 202 and the second electrode mounting hole group 209 can effectively treat the wastewater in the first electrolysis chamber 106 and the second electrolysis chamber 107 in sequence, resulting in better treatment effect. Specifically, the distance between the cathode electrode 203 and the anode electrode 204 is 1cm-3cm. If this distance is set too small, there is a risk of short circuit between the electrodes, while if the distance is too large, the electrolysis efficiency will be reduced. Therefore, the setting of this distance parameter can maximize the electrolysis efficiency while ensuring electrolysis safety.

[0034] A baffle plate 208 is also provided around the outside of each electrode mounting hole in the second electrode mounting hole group 209. The cathode electrode 203 and anode electrode 204, which are alternately arranged in the second electrode mounting hole group 209, extend into the second electrolysis chamber 107.

[0035] When implementing, as shown in the attached document Figure 2 As shown, an overflow cylinder 212 is integrally formed on the tank cover 200. An overflow channel is provided in the middle of the overflow cylinder, which connects the water storage chamber 102 and the tank cover cavity 201. The upper end face of the overflow cylinder 212 is higher than the bottom plate 210. When the wastewater level in the tank cover cavity 201 is too high, the wastewater will flow back to the water storage chamber 102 through the overflow channel of the overflow cylinder 212.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims.

Claims

1. A trickle bed wastewater degradation device, comprising an electrolytic cell body (100) and a cell cover (200) arranged on the electrolytic cell body (100), characterized in that: The electrolytic tank body (100) is provided with at least one electrolytic chamber (101) and a water storage chamber (102), the treated wastewater in the electrolytic chamber (101) overflows into the water storage chamber (102) when it is full; the tank cover (200) comprises a tank cover cavity (201), the tank cover cavity (201) is provided with a first electrode mounting hole group (202), the first electrode mounting hole group (202) is alternately provided with a cathode electrode (203) and an anode electrode (204) in sequence, the cathode electrode (203) and the anode electrode (204) both extend into the electrolytic chamber (101) through the first electrode mounting hole group (202); the mounting hole of the anode electrode (204) is further provided with a dripping hole (205); further comprising a circulating water pump (103), the water inlet end of the circulating water pump (103) is connected to the bottom of the water storage chamber (102) through a pipeline, and the water outlet end of the circulating water pump (103) is connected to the tank cover cavity (201) through a pipeline.

2. The trickle bed wastewater degradation device of claim 1, wherein: The upper part of the tank cover cavity (201) is provided with a cover plate (206), the cover plate (206) is provided with a pipeline mounting hole (207), and the pipeline connected to the water outlet end of the circulating water pump (103) extends into the tank cover cavity (201) through the pipeline mounting hole (207).

3. The trickle bed wastewater degradation device of claim 1, wherein: The tank cover cavity (201) is further provided with a plurality of water baffle plates (208), and the water baffle plates (208) are arranged around the first electrode mounting hole group (202).

4. The trickle bed wastewater degradation device of claim 1, wherein: The electrolytic tank body (100) comprises two groups of oppositely arranged side plates (108), and a first partition plate (104) and a second partition plate (105) are arranged between any one group of oppositely arranged side plates (108); the electrolytic chamber (101) comprises a first electrolytic chamber (106) and a second electrolytic chamber (107), the first electrolytic chamber (106) is formed by connecting the first partition plate (104) and the side plate (108), and the second electrolytic chamber (107) is formed by connecting the first partition plate (104), the second partition plate (105) and the side plate (108) respectively, wherein the upper end of the second partition plate (105) is lower than that of the first partition plate (104).

5. The trickle bed wastewater degradation device of claim 4, wherein: The tank cover (200) is further provided with at least one second electrode mounting hole group (209), the first electrode mounting hole group (202) corresponds to the first electrolytic chamber (106), and the second electrode mounting hole group (209) corresponds to the second electrolytic chamber (107).

6. The trickle bed wastewater degradation device of claim 5, wherein: The outer side of each electrode mounting hole of the second electrode mounting hole group (209) is also provided with a water baffle plate (208), the second electrode mounting hole group (209) is alternately provided with a cathode electrode (203) and an anode electrode (204) in sequence, and the bottom of the cathode electrode (203) and the anode electrode (204) extends into the second electrolytic chamber (107).

7. The trickle bed wastewater degradation device of claim 1, wherein: The first electrode mounting hole group (202) has multiple drop flow holes (205) of anode electrodes (204), and a flow guide groove (211) is further formed in the bottom plate (210) of the tank cover (200), which is located directly below the drop flow hole (205) and is used for guiding waste water to the anode electrode (204).

8. The trickle bed wastewater degradation device of claim 7, wherein: An overflow cylinder (212) is further arranged on the tank cover (200), the upper end surface of the overflow cylinder (212) is higher than the bottom plate (210), and an overflow channel in the overflow cylinder (212) is communicated with the water storage chamber (102).

9. The trickle bed wastewater degradation device of claim 1, wherein: The distance between the cathode electrode (203) and the anode electrode (204) is 1cm-3cm.

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