Electrolytic dephosphorization and antimony removal structure of sewage treatment tank

Abstract

The utility model relates to the technical field of printing and dyeing wastewater treatment, concretely relates to electrolytic dephosphorization and antimony removal structure of sewage treatment tank, through the anode column electrolysis of iron production ferrous ion, the ion and the phosphate radical, antimony acid radical and so on in water reaction, thereby realized without additional chemical reagent can complete depth dephosphorization and antimony removal. This not only omits the purchase, storage and dosing link of reagent, reduces the manual operation cost and complexity, in addition, through the multiple funnels, square tubes and temporary storage bins of setting at the bottom of wastewater treatment tank, the zoned, efficient collection of the settled sludge is realized. Especially through the cutting mechanism of air cylinder drive sliding baffle, the feeding of each temporary storage bin can be independently controlled. The continuous operation mode of "treatment, collection and discharge simultaneously" is realized. Compared with the traditional mode of "precipitation first and then centralized cleaning", the operation is simpler and more efficient, and the cost can be saved.

Description

Technical Field

[0001] This utility model relates to the field of dyeing and printing wastewater treatment technology, and in particular to an electrolytic phosphorus and antimony removal structure for a wastewater treatment pond. Background Technology

[0002] Antimony and total phosphorus in dyeing and printing wastewater are typically polymerized by adding flocculants, then discharged after sedimentation. This not only increases the amount of sludge, but also makes the procurement, transportation, and on-site operation of chemical agents very troublesome.

[0003] To simplify the process and reduce the workload of production and operation, a method was developed to generate iron ions through electrolysis during wastewater treatment. These ions react with a small amount of acid in the wastewater to form iron salts, replacing the need for external iron salt agents. After the implementation of this process, the phosphorus removal effect remains unchanged, and the cost is comparable to that of adding chemical agents. However, it reduces sludge discharge, thereby reducing sludge disposal costs and carbon emissions from sludge incineration.

[0004] Correspondingly, the treatment of small amounts of sludge sedimentation also needs to be modified. Usually, the wastewater is pumped out and the sludge sediment is cleaned up after a certain amount of sludge has settled. This method is not only costly and inefficient, but also cumbersome to operate. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose an electrolytic phosphorus and antimony removal structure for a wastewater treatment pond, so as to solve the technical problem of troublesome and difficult sludge sedimentation treatment in the existing dyeing and printing wastewater treatment process.

[0006] To achieve the above objectives, this utility model provides an electrolytic phosphorus and antimony removal structure for a wastewater treatment tank, comprising a wastewater treatment tank for treating dyeing and printing wastewater for phosphorus and antimony removal, wherein the wastewater treatment tank is connected to an inlet pipe and a pumping pipe, and further comprising: Anode and cathode columns are provided in a plurality of manner and are arranged alternately in the wastewater treatment tank. The anode and cathode columns are respectively connected to the positive and negative terminals of an external DC power supply. The anode columns are made of iron. A funnel is located at the bottom of a wastewater treatment tank and communicates with the inner cavity of the wastewater treatment tank. A temporary storage chamber is provided at the bottom of the funnel. A cut-off mechanism is also provided between the temporary storage chamber and the funnel to control the connection and disconnection between the temporary storage chamber and the funnel.

[0007] Furthermore, the inlet pipe is located at one end of the wastewater treatment tank, and the outlet at the lower end of the inlet pipe is located at the bottom of the wastewater treatment tank.

[0008] Furthermore, the water pump is located at the other end of the wastewater treatment tank, and the lower water inlet is located at the top of the wastewater treatment tank.

[0009] Furthermore, the anode column and cathode column are respectively fixedly connected to two opposite side walls of the wastewater treatment tank.

[0010] Furthermore, the wastewater treatment tank is fixedly connected to the support, and the temporary storage bin is also fixedly connected to the support.

[0011] Furthermore, the funnel is fixedly connected to the wastewater treatment tank, and there are multiple funnels arranged at equal intervals at the bottom of the wastewater treatment tank. Each funnel has a temporary storage compartment and a cutting-off mechanism at its bottom.

[0012] Furthermore, the wastewater treatment tank is also equipped with a short partition, which is fixedly connected to the wastewater treatment tank and located between two adjacent funnels.

[0013] Furthermore, the funnel and the temporary storage bin are connected by a square tube, and the cutting mechanism is installed on the square tube.

[0014] Furthermore, the cutting mechanism includes a cylinder fixedly installed on the outer wall of the square tube and a sliding partition slidably connected inside the square tube, with one end of the sliding partition connected to the output shaft of the cylinder.

[0015] Furthermore, the bottom of the temporary storage compartment is provided with a circular opening, and a bottom cover is provided inside the opening, which is threadedly connected to the temporary storage compartment.

[0016] The beneficial effects of this invention are as follows: 1. Ferrous ions (Fe²⁺) are generated through electrolysis using an iron anode column. These ions react with substances such as phosphate and antimony ions in the water to form water-insoluble precipitates, thus achieving deep phosphorus and antimony removal without the need for external chemical agents. This not only eliminates the need for purchasing, storing, and adding chemicals, reducing manual operation costs and complexity, but more importantly, it avoids the increase in sludge caused by the introduction of external chemical substances at the source, saving subsequent sludge disposal costs and reducing carbon emissions from incineration.

[0017] 2. The staggered arrangement of anode and cathode columns inside the wastewater treatment tank greatly increases the effective area of ​​the electrolysis reaction, making the release of iron ions and the contact and reaction with pollutants more complete and efficient.

[0018] 3. By using multiple funnels, square tubes, and temporary storage bins located at the bottom of the wastewater treatment tank, the system achieves zoned and efficient collection of settled sludge. In particular, the cylinder-driven sliding baffle cutting mechanism allows for independent control of the feeding into each temporary storage bin, enabling a continuous operation mode of "treatment, collection, and discharge simultaneously." Compared to the traditional "sedimentation followed by centralized cleaning" method, this approach is simpler, more efficient, and cost-effective. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure and principle of the device of this utility model.

[0021] Figure 2 This is a structural schematic diagram of the device from another perspective.

[0022] Figure 3 This is a cross-sectional view of the device of this utility model.

[0023] Figure 4 This is a longitudinal sectional view of the device of this utility model.

[0024] Figure 5 This is a schematic diagram of the cutting mechanism in the device of this utility model.

[0025] The diagram is marked as follows: 101. Wastewater treatment tank; 102. Inlet pipe; 103. Pumping pipe; 104. Anode column; 105. Cathode column; 106. Funnel; 107. Support; 108. Temporary storage bin; 109. Square tube; 110. Cylinder; 111. Sliding partition; 112. Bottom cover; 113. Short partition. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0027] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0028] The first aspect of this utility model is as follows: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, antimony and total phosphorus in dyeing and printing wastewater are generally removed by adding flocculants to polymerize antimony and phosphorus, followed by precipitation and discharge. This not only increases the amount of sludge but also makes the procurement, transportation, and on-site operation of chemical agents very troublesome. Therefore, this utility model designs a wastewater treatment tank 101 for phosphorus and antimony removal from dyeing and printing wastewater. The wastewater treatment tank 101 is connected to an inlet pipe 102 and a pumping pipe 103.

[0029] The inlet pipe 102 is located at one end of the wastewater treatment tank 101, and its lower outlet is located at the bottom of the wastewater treatment tank 101. The drain pipe 103 is located at the other end of the wastewater treatment tank 101, and its lower inlet is located at the top of the wastewater treatment tank 101. Furthermore, the other ends of the inlet pipe 102 and the drain pipe 103 are connected to the preceding and following equipment in the wastewater treatment process, respectively.

[0030] The key point is that an anode column 104 and a cathode column 105 are installed inside the wastewater treatment tank 101. There are several anode columns 104 and cathode columns 105, and the anode columns 104 and cathode columns 105 are respectively connected to the positive and negative terminals of an external DC power supply.

[0031] Preferably, the anode column 104 is made of iron.

[0032] Ferrous ions (Fe²⁺) are generated through electrolysis using an iron anode column (104). These ions react with substances such as phosphate and antimony ions in the water to form water-insoluble precipitates, thus achieving deep phosphorus and antimony removal without the need for external chemical agents. This not only eliminates the need for purchasing, storing, and adding chemicals, reducing manual operation costs and complexity, but more importantly, it avoids the increase in sludge caused by the introduction of external chemicals at the source, saving subsequent sludge disposal costs and reducing carbon emissions from incineration.

[0033] Preferably, the anode column 104 and the cathode column 105 are fixedly connected to two opposite side walls of the wastewater treatment tank 101 and are arranged alternately inside the wastewater treatment tank 101.

[0034] The multiple anode columns 104 and cathode columns 105 arranged in an alternating pattern inside the wastewater treatment tank 101 greatly increase the effective area of ​​the electrolysis reaction, making the release of iron ions and contact with pollutants, as well as the reaction, more complete and efficient.

[0035] The second aspect of this utility model is as follows: Figure 3 , Figure 4 and Figure 5As shown, the treatment of small amounts of sludge sedimentation also requires corresponding changes. Usually, the wastewater is pumped out and the sludge sediment is cleaned after the sludge has settled to a certain amount. This method is not only costly and inefficient, but also cumbersome to operate. Therefore, this embodiment also includes a funnel 106, which is located at the bottom of the wastewater treatment tank 101 and communicates with the inner cavity of the wastewater treatment tank 101.

[0036] A temporary storage chamber 108 is provided at the bottom of the funnel 106, and a cutting-off mechanism is also provided between the temporary storage chamber 108 and the funnel 106 to control the opening and closing of the connection between the temporary storage chamber 108 and the funnel 106. The wastewater treatment tank 101 is fixedly connected to the support 107, and the temporary storage chamber 108 is also fixedly connected to the support 107.

[0037] In addition, funnels 106 are fixedly connected to wastewater treatment tank 101, and multiple funnels 106 are provided and arranged at equal intervals at the bottom of wastewater treatment tank 101. Each funnel 106 has a temporary storage chamber 108 and a cutting-off mechanism at its bottom. Short partitions 113 are also provided inside wastewater treatment tank 101, and are fixedly connected to wastewater treatment tank 101 and located between adjacent funnels 106. Funnels 106 and temporary storage chambers 108 are connected by square tubes 109, and the cutting-off mechanism is installed on the square tubes 109.

[0038] The cutting mechanism includes a cylinder 110 fixedly installed on the outer wall of the square tube 109 and a sliding partition 111 slidably connected inside the square tube 109. One end of the sliding partition 111 is connected to the output shaft of the cylinder 110.

[0039] Preferably, the bottom of the temporary storage compartment 108 is provided with a circular opening, and a bottom cover 112 is provided inside the opening. The bottom cover 112 is threadedly connected to the temporary storage compartment 108.

[0040] By using multiple funnels 106, square tubes 109, and temporary storage bins 108 located at the bottom of the wastewater treatment tank 101, the settled sludge can be collected in a zoned and efficient manner. In particular, the cutting mechanism of the sliding baffle 111 driven by the cylinder 110 allows for independent control of the feeding into each temporary storage bin 108. This enables a continuous operation mode of "treating, collecting, and discharging simultaneously." Compared to the traditional method of "sedimentation followed by centralized cleaning," this method is simpler to operate, more efficient, and cost-effective.

[0041] Furthermore, the cut-off mechanism opens periodically, and each time it opens, a small amount of precipitated sludge is briefly released into the temporary storage chamber 108. The opening cycle and opening time of the cut-off mechanism can be controlled according to the actual situation, so that wastewater is not allowed to enter the temporary storage chamber 108 each time precipitated sludge is released. After enough sludge has accumulated in the temporary storage chamber 108, the bottom cover 112 is opened, and the leaking sludge is collected in a bucket for unified treatment.

[0042] In summary, this invention utilizes an iron-based anode column 104 to electrolyze and generate ferrous ions. These ions react with substances such as phosphate and antimony ions in the water to form water-insoluble precipitates, thus achieving deep phosphorus and antimony removal without the need for external chemical reagents. This not only eliminates the need for reagent procurement, storage, and dosing, reducing manual operation costs and complexity, but more importantly, it avoids the increase in sludge caused by the introduction of external chemicals, saving subsequent sludge disposal costs and reducing carbon emissions from incineration. The staggered arrangement of the anode columns 104 and cathode columns 105 inside the wastewater treatment tank 101 greatly increases the effective area of ​​the electrolysis reaction, making the release of iron ions and contact with pollutants, as well as the reaction, more complete and efficient.

[0043] Furthermore, multiple funnels 106, square tubes 109, and temporary storage bins 108 located at the bottom of the wastewater treatment tank 101 enable zoned and efficient collection of settled sludge. In particular, the cutting mechanism of the sliding baffle 111 driven by the cylinder 110 allows for independent control of the feeding into each temporary storage bin 108, achieving a continuous operation mode of "treatment, collection, and discharge simultaneously." Compared to the traditional method of "sedimentation followed by centralized cleaning," this approach is simpler, more efficient, and cost-effective.

[0044] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention includes the claims being limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0045] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electrolytic phosphorus and antimony removal structure for a wastewater treatment pond, comprising a wastewater treatment tank (101) for treating dyeing and printing wastewater for phosphorus and antimony removal, wherein the wastewater treatment tank (101) is connected to an inlet pipe (102) and a pumping pipe (103), characterized in that, Also includes: Anode column (104) and cathode column (105) are provided in a plurality of them and are arranged alternately in the wastewater treatment tank (101). The anode column (104) and cathode column (105) are respectively connected to the positive and negative terminals of an external DC power supply. The anode column (104) is made of iron. A funnel (106) is located at the bottom of the wastewater treatment tank (101) and communicates with the inner cavity of the wastewater treatment tank (101). A temporary storage chamber (108) is provided at the bottom of the funnel (106). A cut-off mechanism is also provided between the temporary storage chamber (108) and the funnel (106) to control the connection and disconnection between the temporary storage chamber (108) and the funnel (106).

2. The electrolytic phosphorus and antimony removal structure of a sewage treatment pond according to claim 1, characterized in that, The inlet pipe (102) is located at one end of the wastewater treatment tank (101), and the outlet of the lower end of the inlet pipe (102) is located at the bottom of the wastewater treatment tank (101).

3. The electrolytic phosphorus and antimony removal structure of a sewage treatment pond according to claim 2, characterized in that, The water pumping pipe (103) is located at the other end of the wastewater treatment tank (101), and the water inlet at the lower end of the water pumping pipe (103) is located at the top of the wastewater treatment tank (101).

4. The electrolytic phosphorus and antimony removal structure of a sewage treatment pond according to claim 1, characterized in that, The anode column (104) and cathode column (105) are respectively fixedly connected to the two opposite side walls of the wastewater treatment tank (101).

5. The electrolytic phosphorus and antimony removal structure of a sewage treatment pond according to claim 1, characterized in that, The wastewater treatment tank (101) is fixedly connected to the support (107), and the temporary storage tank (108) is also fixedly connected to the support (107).

6. The electrolytic phosphorus and antimony removal structure of a sewage treatment pond according to claim 1 or 5, characterized in that, The funnel (106) is fixedly connected to the wastewater treatment tank (101), and there are multiple funnels (106) arranged at equal intervals at the bottom of the wastewater treatment tank (101). Each funnel (106) has a temporary storage compartment (108) and a cutting mechanism at its bottom.

7. The electrolytic phosphorus and antimony removal structure of a sewage treatment pond according to claim 6, characterized in that, The wastewater treatment tank (101) is also provided with a short partition (113), which is fixedly connected to the wastewater treatment tank (101) and located between two adjacent funnels (106).

8. The electrolytic phosphorus and antimony removal structure of a sewage treatment pond according to claim 1, characterized in that, The funnel (106) and the temporary storage bin (108) are connected by a square tube (109), and the cutting mechanism is installed on the square tube (109).

9. The electrolytic phosphorus and antimony removal structure of a sewage treatment pond according to claim 8, characterized in that, The cutting mechanism includes a cylinder (110) fixedly installed on the outer wall of the square tube (109) and a sliding partition (111) slidably connected inside the square tube (109). One end of the sliding partition (111) is connected to the output shaft of the cylinder (110).

10. The electrolytic phosphorus and antimony removal structure of a wastewater treatment pond according to claim 1 or 9, characterized in that, The bottom of the temporary storage bin (108) is provided with a circular opening, and a bottom cover (112) is provided inside the opening. The bottom cover (112) is threadedly connected to the temporary storage bin (108).

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