A multi-stage zero-discharge wastewater process and device

Abstract

This invention discloses a multi-stage zero-discharge wastewater process and apparatus, relating to the field of wastewater treatment. Specifically, it includes a screening box, a treatment box located on one side of the bottom of the screening box, and a purification box located on one side of the bottom of the treatment box. A screen plate is fixedly installed inside the screening box. A segmented drainage mechanism and an intermittent lifting mechanism are provided between the screening box and the treatment box, and between the treatment box and the purification box. This invention arranges multiple wastewater treatment tanks in a staggered, vertical arrangement. The drainage channel is intermittently opened by a lifting plate, allowing the tanks treating subsequent wastewater to discharge treated water before introducing new wastewater. This effectively separates treated and untreated wastewater, preventing interference with wastewater treatment. Simultaneously, during the discharge of treated wastewater, a partition plate and a flap plate push away and isolate sediment and floating matter, preventing treated water from carrying them out and affecting the wastewater treatment effect.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and more specifically, to a multi-stage zero-discharge wastewater process and apparatus. Background Technology

[0002] Wastewater contains a large number of pollutants, such as pathogens, aerobic pollutants, toxic chemicals, petroleum pollutants, and radioactive pollutants.

[0003] For example, utility model patent CN219823951U discloses a zero-discharge device for reclaimed water reuse based on wastewater treatment. It uses a waste residue recovery device to directly discharge the sludge and waste residue generated during treatment into a septic tank, avoiding pollution caused by discharge into the environment. It also uses a coarse filter, a stirring device, an ozone device, and an MBR device to treat the reclaimed water in multiple stages. The reclaimed water can be taken out at any time through different outlet pipes, realizing the treatment of reclaimed water according to its intended use and avoiding waste of resources.

[0004] However, the aforementioned patent documents only have the function of continuous wastewater treatment. In actual application, there is no separate and orderly wastewater treatment structure. That is, the wastewater treatment process is continuous and mutually influential, which makes it impossible for the wastewater in the first stage to be separated from the wastewater in the second stage. This makes it impossible for the treated wastewater to be disconnected in time and affected again, which greatly reduces the effectiveness of the zero-discharge requirement for wastewater.

[0005] At the same time, it lacks a structure to separate the sediment and floating matter generated during the wastewater treatment process. As the wastewater continues to enter the next stage after reprocessing, the sediment and floating matter are carried out simultaneously, which further affects the wastewater treatment effect. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multi-stage wastewater zero-discharge process and apparatus to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a multi-stage zero-discharge wastewater device, comprising a screening box, a treatment box disposed on one side of the bottom of the screening box, a purification box disposed on one side of the bottom of the treatment box, a screen plate fixedly installed inside the screening box, and a segmented drainage mechanism and an interval lifting mechanism disposed between the screening box and the treatment box and between the treatment box and the purification box.

[0008] The segmented drainage mechanism includes drainage guide channels that are fixedly installed on the top of one side of the screening box and the treatment box respectively. The drainage guide channels are arranged in a U-shape. The outer walls of the two drainage guide channels are connected to discharge channels. The two discharge channels pass through the outer walls of the treatment box and the purification box respectively.

[0009] The inner wall of the drainage channel is provided with a piston plate, which is horizontally arranged. The outer wall of the piston plate is in contact with the inner wall of the drainage channel. Pull rods are fixedly installed on both sides of the bottom of the piston plate. The two pull rods are symmetrically arranged. The bottom of the two pull rods is fixedly installed with a belt plate, which is horizontally arranged.

[0010] In a preferred embodiment, a first toothed plate is fixedly installed on one side of each of the two belt plates. The two first toothed plates are slidably installed on the outer wall of the screening box. The two first toothed plates are arranged in a vertical state. A gear is meshed on one side of each of the two first toothed plates. The two gears are rotatably installed on the outer wall of the processing box. A second toothed plate is meshed on the other side of each of the two gears. The two second toothed plates are slidably installed on the outer wall of the processing box. The two second toothed plates and the two first toothed plates are staggered from each other.

[0011] In a preferred embodiment, the interval lifting mechanism includes a motor fixedly installed on the top of the processing box, a reciprocating threaded rod at the bottom of the motor, the reciprocating threaded rod being arranged vertically, a lifting plate being threadedly connected to the outer wall of the reciprocating threaded rod, the lifting plate being slidably installed on the outer wall of the processing box, and the lifting plate being arranged in an inverted T shape.

[0012] In a preferred embodiment, lifting rods are rotatably mounted on both sides of the lifting plate. The two lifting rods are arranged symmetrically to each other, and the bottom of the two lifting rods is provided with limiting blocks. The two limiting blocks are fixedly installed on both sides of the lifting plate.

[0013] In a preferred embodiment, the top of each of the two lifting rods is provided with a tension plate, the tension plate and the lifting rod are staggered and the tension plate is horizontally arranged, a retaining block is rotatably installed on one side of the tension plate, the retaining block is fixedly installed on the outer wall of the second toothed plate, a support spring is fixedly installed on the top of the tension plate, the support spring is fixedly installed on the outer wall of the retaining block, and a locking block is provided on the top of the retaining block, the locking block is fixedly installed on the outer wall of the processing box and the purification box.

[0014] In a preferred embodiment, a heavy-duty plate is fixedly installed on the bottom outer wall of the two second toothed plates, and the heavy-duty plate is arranged in a horizontal position.

[0015] In a preferred embodiment, the inner wall of the processing box is provided with a debris-separating mechanism, which includes two telescopic rods hinged to the outer wall of the bottom of the lifting plate. The two telescopic rods are arranged symmetrically to each other. A sliding plate is hinged to one side of both telescopic rods. The sliding plate is slidably installed on the top of the processing box. A partition plate is fixedly installed at the bottom of the sliding plate. The partition plate is arranged vertically, and the outer wall of the partition plate is in contact with the inner wall of the processing box.

[0016] In a preferred embodiment, a pull bar is hinged to the bottom of the partition plate, a flap is hinged to the bottom of the pull bar, the flap is set in an inclined state, a guide plate is rotatably installed at the bottom of the flap, the guide plate is fixedly installed at the bottom of the processing box, and the top of the guide plate is set in an inclined state.

[0017] This invention also proposes a multi-stage zero-discharge wastewater process, specifically including separating treated wastewater from untreated wastewater and isolating the resulting sediment and floating matter. The relevant steps are as follows:

[0018] Step 1: The motor drives the reciprocating threaded rod to rotate, causing the lifting plate to move upward. The lifting plate drives the lifting rods on both sides to lift the tension plate and the fixing block upward, which in turn drives the second toothed plate to move upward synchronously.

[0019] Step 2: When the lifting plate moves up, it drives the two telescopic rods to make the sliding plate slide. The sliding plate drives the partition plate to slide synchronously, pushing the floating objects in the treatment box backward. When the partition plate moves, it drives the pull bar to lift the flap upward, and the sediment accumulated on the guide plate is pushed backward by the force.

[0020] Step 3: The second toothed plate between the treatment box and the purification box moves upward first, driving the gear to rotate, which causes the first toothed plate to move downward along with the belt plate. The belt plate drives the pull rod to move downward, opening the piston plate and creating negative pressure in the drainage guide channel to introduce the treated water in the treatment box into the purification box.

[0021] Step 4: The retaining block moves up to the limit stop, making the retaining block stop. The tension plate on the retaining block is subjected to force and compresses the support spring to rotate, thus disengaging from the lifting rod's lifting and squeezing.

[0022] Step 5: The second toothed plates on both sides move down through the pressure plate, and the piston plate moves up again to close the drainage channel located between the treatment box and the purification box;

[0023] Step Six: The push plate continues to move upward to open the drainage channel located between the screening box and the treatment box, so that the new wastewater in the screening box is sent into the treatment box for treatment.

[0024] The technical effects and advantages of this invention are as follows:

[0025] This invention combines a segmented drainage mechanism with an intermittent lifting mechanism. By arranging multiple wastewater treatment tanks in an alternating vertical arrangement and intermittently opening the drainage guide channel via a lifting plate, the wastewater tanks can first discharge the treated water before introducing new wastewater, thereby effectively separating the treated and untreated wastewater and preventing wastewater treatment from being affected.

[0026] In addition, a separation mechanism is set up to assist in the process of discharging treated wastewater. During this process, the sediment and floating matter generated are pushed away and isolated by the screen and flap, so as to prevent the treated water from carrying them out at the same time and affecting the wastewater treatment effect. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0028] Figure 2 This is a front view of the present invention.

[0029] Figure 3 This is a partial vertical sectional view of the present invention.

[0030] Figure 4 This is a partial cross-sectional view of the segmented drainage mechanism in this invention.

[0031] Figure 5 This is a schematic diagram of the intermediate lifting mechanism of the present invention.

[0032] Figure 6 This is a partial cross-sectional view of the intermediate lifting mechanism of the present invention.

[0033] Figure 7 This is a vertical sectional view of the separation mechanism in this invention.

[0034] The attached diagram is labeled as follows: 1. Screening box; 2. Processing box; 3. Purification box; 4. Screen plate; 5. Segmented drainage mechanism; 51. Drainage guide channel; 52. Discharge channel; 53. Piston plate; 54. Pull rod; 55. Belt plate; 56. First toothed plate; 57. Gear; 58. Second toothed plate; 6. Interval lifting and pushing mechanism; 61. Motor; 62. Reciprocating threaded rod; 63. Lifting plate; 64. Lifting rod; 65. Limiting block; 66. Tension plate; 67. Fixing block; 68. Support spring; 69. Locking block; 610. Heavy pressure plate; 7. Impurity separation mechanism; 71. Telescopic rod; 72. Sliding push plate; 73. Partition plate; 74. Pull bar; 75. Flip plate; 76. Impurity guide plate. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example 1: For wastewater treatment structures that lack separation and orderly operation, where the wastewater treatment process is continuous and interconnected, resulting in the inability to separate treated wastewater from subsequent wastewater, the treated wastewater cannot be promptly disconnected and is further affected, significantly reducing the effectiveness of achieving zero discharge. To address this problem, the following technical solution is proposed:

[0037] Refer to the instruction manual appendix Figures 1-7 A multi-stage wastewater zero-discharge device, such as Figure 1 and Figure 2 As shown, it includes a screening box 1, a processing box 2 is provided on one side of the bottom of the screening box 1, a purification box 3 is provided on one side of the bottom of the processing box 2, a screen plate 4 is fixedly installed inside the screening box 1, and a segmented drainage mechanism 5 and an interval lifting mechanism 6 are provided between the screening box 1 and the processing box 2 and between the processing box 2 and the purification box 3.

[0038] like Figure 3 and Figure 4 As shown, the segmented drainage mechanism 5 includes drainage guide channels 51 that are fixedly installed on the top of one side of the screening box 1 and the processing box 2 respectively. The drainage guide channels 51 are arranged in a gate shape. The outer walls of the two drainage guide channels 51 are connected to discharge channels 52. The two discharge channels 52 pass through the outer walls of the processing box 2 and the purification box 3 respectively.

[0039] The inner wall of the drainage guide 51 is provided with a piston plate 53, which is set horizontally. The outer wall of the piston plate 53 is in contact with the inner wall of the drainage guide 51. Pull rods 54 are fixedly installed on both sides of the bottom of the piston plate 53. The two pull rods 54 are symmetrically arranged. The bottom of the two pull rods 54 is fixedly installed with a belt plate 55, which is set horizontally. Drainage guide troughs 51 are provided between the screening box 1 and the treatment box 2 and between the treatment box 2 and the purification box 3.

[0040] In use, the drainage guide 51 located between the treatment tank 2 and the purification tank 3 first moves the pull rod 54 down through the belt plate 55 to open the piston plate 53. The piston plate 53 causes negative pressure in the drainage guide 51, which introduces the treated water in the treatment tank 2 into the purification tank 3. Then, the drainage guide 51 located between the screening tank 1 and the treatment tank 2 opens to send new wastewater into the treatment tank 2 for treatment, thereby effectively separating the treated wastewater from the untreated wastewater and preventing the wastewater treatment from being affected.

[0041] like Figure 3 and Figure 4As shown, two first toothed plates 56 are fixedly installed on one side of the two belt plates 55 respectively. The two first toothed plates 56 are slidably installed on the outer wall of the screening box 1. The two first toothed plates 56 are set in a vertical state. Gears 57 are meshed on one side of the two first toothed plates 56. The two gears 57 are rotatably installed on the outer wall of the processing box 2. Second toothed plates 58 are meshed on the other side of the two gears 57. The two second toothed plates 58 are slidably installed on the outer wall of the processing box 2. The two second toothed plates 58 and the two first toothed plates 56 are staggered. The upward movement of the second toothed plates 58 drives the gears 57 to rotate, causing the first toothed plates 56 to push the belt plates 55 downward.

[0042] like Figure 5 and Figure 6 As shown, the interval lifting mechanism 6 includes a motor 61 fixedly installed on the top of the processing box 2. The bottom of the motor 61 is provided with a reciprocating threaded rod 62, which is set in a vertical state. The outer wall of the reciprocating threaded rod 62 is threadedly connected to a lifting plate 63. The lifting plate 63 is slidably installed on the outer wall of the processing box 2. The lifting plate 63 is set in an inverted T shape. The motor drives the reciprocating threaded rod 62 to rotate, causing the lifting plate 63 to move up and down.

[0043] like Figure 5 and Figure 6 As shown, lifting rods 64 are rotatably installed on both sides of the lifting plate 63. The two lifting rods 64 are symmetrically arranged. Limiting blocks 65 are provided at the bottom of the two lifting rods 64. The two limiting blocks 65 are fixedly installed on both sides of the lifting plate 63. When the lifting plate 63 moves the lifting rods 64 on both sides upward, the limiting blocks 65 restrict and support them to maintain horizontality. After the lifting rods 64 on both sides move downward, they are rotated to avoid cross-extrusion and compression with the tension plate 66.

[0044] like Figure 5 and Figure 6 As shown, the top of the two lifting rods 64 is provided with a tension plate 66, which is staggered with the lifting rods 64. The tension plate 66 is horizontally positioned. A retaining block 67 is rotatably installed on one side of the tension plate 66. The retaining block 67 is fixedly installed on the outer wall of the second toothed plate 58. A support spring 68 is fixedly installed on the top of the tension plate 66. The support spring 68 is fixedly installed on the outer wall of the retaining block 67. A locking block 69 is provided on the top of the retaining block 67. The locking block 69 is fixedly installed on the outer wall of the processing box 2 and the purification box 3. When the lifting rods 64 on both sides move upward, they lift the tension plate 66 and the retaining block 67 upward, thereby driving the second toothed plate 58 to move upward synchronously. After the retaining block 67 moves to the position of the locking block 69, it is stopped by limiting the movement. At this time, the tension plate 66 on the retaining block 67 is subjected to force and compresses the support spring 68 to rotate, thereby escaping the lifting and squeezing of the lifting rods 64.

[0045] like Figure 5 and Figure 6As shown, a heavy pressure plate 610 is fixedly installed on the bottom outer wall of the two second tooth plates 58. The heavy pressure plate 610 is set in a horizontal state. After the second tooth plates 58 on both sides lose the lifting force, the heavy pressure plate 610 moves them downward.

[0046] In specific implementation, the motor drives the reciprocating threaded rod 62 to rotate, causing the lifting plate 63 to move upward. When the lifting plate 63 drives the lifting rods 64 on both sides to move upward, the limiting block 65 restricts the support to keep them horizontal. When the lifting rods 64 on both sides move upward, they lift the tension plate 66 and the fixing block 67 to move upward, thereby driving the second toothed plate 58 to move upward synchronously.

[0047] At this time, the second toothed plate 58 located between the treatment box 2 and the purification box 3 moves upward first, driving the gear 57 to rotate, causing the first toothed plate 56 to push the belt plate 55 downward. The belt plate 55 drives the pull rod 54 to move downward and pull open the piston plate 53. Then the piston plate 53 causes negative pressure in the drainage guide channel 51 to introduce the water that has been treated in the treatment box 2 into the purification box 3.

[0048] After the retaining block 67 moves up to the position of the locking block 69, the retaining block 67 is stopped by the limiting. At this time, the tension plate 66 on the retaining block 67 is subjected to force and compresses the support spring 68 to rotate, and is released from the lifting and squeezing of the lifting rod 64. After the second toothed plates 58 on both sides lose the lifting force, they are moved down by the heavy pressure plate 610. Therefore, the piston plate 53 moves up again to close the drainage guide 51 located between the processing box 2 and the purification box 3.

[0049] Then, by continuing to move the push plate 63 upward, the drainage guide channel 51 located between the screening box 1 and the treatment box 2 is opened, and the new wastewater in the screening box 1 is sent into the treatment box 2 for treatment, thereby effectively separating the treated wastewater from the untreated wastewater and avoiding the wastewater treatment being affected.

[0050] Example 2: To address the lack of a structure separating sediment and floating matter generated during wastewater treatment, which leads to sediment and floating matter being carried out simultaneously as wastewater continuously enters the next stage, further affecting the wastewater treatment effect, the following technical solution is proposed:

[0051] like Figure 2 and Figure 7As shown, the inner wall of the treatment box 2 is provided with a debris separation mechanism 7. The debris separation mechanism 7 includes two telescopic rods 71 ​​hinged to the bottom outer wall of the lifting plate 63. The two telescopic rods 71 ​​are arranged symmetrically to each other. A sliding push plate 72 is hinged to one side of the two telescopic rods 71. The sliding push plate 72 is slidably installed on the top of the treatment box 2. A partition plate 73 is fixedly installed at the bottom of the sliding push plate 72. The partition plate 73 is arranged vertically. The outer wall of the partition plate 73 is in contact with the inner wall of the treatment box 2. When the lifting plate 63 moves upward, it drives the two telescopic rods 71 ​​to make the sliding push plate 72 slide. At this time, the sliding push plate 72 drives the partition plate 73 to slide synchronously, pushing the floating objects in the treatment box 2 backward.

[0052] like Figure 7 As shown, a pull bar 74 is hinged to the bottom of the partition plate 73, and a flap 75 is hinged to the bottom of the pull bar 74. The flap 75 is set in an inclined state, and a guide plate 76 is rotatably installed at the bottom of the flap 75. The guide plate 76 is fixedly installed at the bottom of the treatment box 2, and the top of the guide plate 76 is set in an inclined state. When the partition plate 73 moves, it drives the pull bar 74 to lift the flap 75 upward. At this time, the sediment accumulated on the guide plate 76 is pushed backward by force to avoid being carried away by the drainage channel 51 and affecting the wastewater treatment effect.

[0053] In practice, when the lifting plate 63 moves upward, it drives the two telescopic rods 71 ​​to make the sliding plate 72 slide. At this time, the sliding plate 72 drives the partition plate 73 to slide synchronously, pushing the floating objects in the treatment box 2 backward. When the partition plate 73 moves, it drives the pull bar 74 to make the flip plate 75 lift upward. At this time, the sediment accumulated on the guide plate 76 is pushed backward by the force, so as to avoid being carried away by the drainage guide channel 51 and affecting the wastewater treatment effect.

[0054] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0055] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0056] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-stage zero-discharge wastewater device, comprising a screening box (1), a treatment box (2) being provided on one side of the bottom of the screening box (1), a purification box (3) being provided on one side of the bottom of the treatment box (2), and a screen plate (4) being fixedly installed inside the screening box (1), characterized in that: A segmented drainage mechanism (5) and an interval lifting mechanism (6) are provided between the screening box (1) and the processing box (2) and between the processing box (2) and the purification box (3). The segmented drainage mechanism (5) includes drainage guide channels (51) that are fixedly installed on the top of one side of the screening box (1) and the processing box (2). The drainage guide channels (51) are arranged in a gate shape. The outer walls of the two drainage guide channels (51) are connected to discharge channels (52). The two discharge channels (52) penetrate the outer walls of the processing box (2) and the purification box (3) respectively. The inner wall of the drainage guide channel (51) is provided with a piston plate (53). The piston plate (53) is set in a horizontal state. The outer wall of the piston plate (53) is in contact with the inner wall of the drainage guide channel (51). Pull rods (54) are fixedly installed on both sides of the bottom of the piston plate (53). The two pull rods (54) are symmetrically arranged. The bottom of the two pull rods (54) is fixedly installed with a belt plate (55). The two belt plates (55) are set in a horizontal state. Two first toothed plates (56) are fixedly installed on one side of the two belt plates (55), and the two first toothed plates (56) are slidably installed on the outer wall of the screening box (1). The two first toothed plates (56) are arranged in a vertical state. A gear (57) is meshed on one side of the two first toothed plates (56). The two gears (57) are rotatably installed on the outer wall of the processing box (2). A second toothed plate (58) is meshed on the other side of the two gears (57). The two second toothed plates (58) are slidably installed on the outer wall of the processing box (2). The two second toothed plates (58) and the two first toothed plates (56) are staggered from each other. The interval lifting mechanism (6) includes a motor (61) fixedly installed on the top of the processing box (2). The bottom of the motor (61) is provided with a reciprocating threaded rod (62). The reciprocating threaded rod (62) is set in a vertical state. The outer wall of the reciprocating threaded rod (62) is threadedly connected to a lifting plate (63). The lifting plate (63) is slidably installed on the outer wall of the processing box (2). The lifting plate (63) is set in an inverted T shape. Lifting rods (64) are rotatably installed on both sides of the lifting plate (63). The two lifting rods (64) are arranged symmetrically to each other. The bottom of the two lifting rods (64) is provided with limiting blocks (65). The two limiting blocks (65) are fixedly installed on both sides of the lifting plate (63). The top of the two lifting rods (64) is provided with a tension plate (66), the tension plate (66) and the lifting rod (64) are arranged in an alternating manner, the tension plate (66) is arranged in a horizontal state, a retaining block (67) is rotatably installed on one side of the tension plate (66), the retaining block (67) is fixedly installed on the outer wall of the second toothed plate (58), a support spring (68) is fixedly installed on the top of the tension plate (66), the support spring (68) is fixedly installed on the outer wall of the retaining block (67), a locking block (69) is provided on the top of the retaining block (67), the locking block (69) is fixedly installed on the outer wall of the processing box (2) and the purification box (3).

2. The multi-stage zero-discharge wastewater device according to claim 1, characterized in that: The bottom outer walls of the two second toothed plates (58) are jointly fixedly installed with a heavy pressure plate (610), which is set in a horizontal state.

3. The multi-stage zero-discharge wastewater device according to claim 1, characterized in that: The inner wall of the processing box (2) is provided with a separation mechanism (7). The separation mechanism (7) includes two telescopic rods (71) hinged to the bottom outer wall of the lifting plate (63). The two telescopic rods (71) are arranged symmetrically to each other. A sliding plate (72) is hinged to one side of the two telescopic rods (71). The sliding plate (72) is slidably installed on the top of the processing box (2). A partition plate (73) is fixedly installed at the bottom of the sliding plate (72). The partition plate (73) is arranged vertically. The outer wall of the partition plate (73) is in contact with the inner wall of the processing box (2).

4. The multi-stage zero-discharge wastewater device according to claim 3, characterized in that: The bottom of the partition plate (73) is hinged with a pull bar (74), and the bottom of the pull bar (74) is hinged with a flap (75). The flap (75) is set in an inclined state. The bottom of the flap (75) is rotatably installed with a guide plate (76). The guide plate (76) is fixedly installed at the bottom of the processing box (2). The top of the guide plate (76) is set in an inclined state.

5. A multi-stage zero-discharge wastewater process, employing a multi-stage zero-discharge wastewater device as described in any one of claims 1-4, characterized in that, Specifically, this includes separating treated wastewater from untreated wastewater and isolating and treating any resulting sediment and floating matter.

Images