Environment-friendly glyphosate production sewage treatment equipment and treatment method

Abstract

The invention relates to the technical field of water pollution treatment equipment, and discloses environment-friendly glyphosate production wastewater treatment equipment which comprises a glyphosate production wastewater collection tank, a regulating tank, a neutralization reaction tank, a flocculation sedimentation tank, a biological treatment tank, a disinfection tank and a clear water discharge port which are sequentially connected, the sludge thickening tank is sequentially connected with the dewatering machine room and the sludge treatment unit; when sludge is accumulated to a certain amount in the gap between the mounting frame and the bottom wall of the mixing cavity, the transmission assembly can drive the connecting shaft to rotate, so that the longitudinal partition plate rotates to a vertical state, sludge attached to the longitudinal partition plate can settle more smoothly, and the longitudinal partition plate can shake by rotating the longitudinal partition plate in a small-amplitude reciprocating manner for multiple times, so that the sludge can be uniformly mixed. By means of the design, workers do not need to frequently enter the sedimentation tank to clean deposits, the shutdown maintenance time is shortened, the operation and maintenance cost is remarkably reduced, and the stability and continuity of equipment operation are improved.

Description

Technical Field

[0001] The invention relates to the technical field of water pollution treatment equipment, in particular to an environmentally friendly glyphosate production wastewater treatment equipment and a treatment method. Background Art

[0002] The wastewater generated during the production of glyphosate has the characteristics of high salinity, high organic phosphorus content, high ammonia nitrogen concentration and strong biological toxicity. It is difficult to treat and direct discharge will cause water pollution. At present, the treatment technologies for this type of wastewater mainly include physical and chemical methods (such as catalytic oxidation, membrane separation), biological methods (such as hydrolysis acidification-aerobic combined process) and flocculation precipitation and other combined processes. For example, the prior art often uses a comprehensive process of high-efficiency catalytic oxidation pretreatment combined with coagulation precipitation-hydrolysis acidification-multi-stage aerobic biochemical treatment to reduce the organic phosphorus and COD content in the wastewater. Among them, the flocculation precipitation stage is the key link, and the suspended matter and phosphate are formed into flocs and then settled by adding flocculants (such as PAC, PFS).

[0003] However, the existing equipment still has the following problems in sedimentation efficiency and operation and maintenance convenience: In order to improve sedimentation efficiency, the existing technology usually sets inclined plates or inclined tube fillers in the sedimentation tank, using the principle of shallow sedimentation to shorten the particle sedimentation path and accelerate the solid-liquid separation speed. However, the inclined structure easily causes flocculants to accumulate on the inclined surface of the filler, forming local siltation. After long-term operation, the silt needs to be frequently cleaned manually or shut down for flushing, which not only increases the operation and maintenance costs, but also may cause the risk of secondary pollution due to incomplete cleaning.

[0004] Therefore, it is necessary to provide an environmentally friendly glyphosate production wastewater treatment equipment and treatment method to solve the above technical problems. Summary of the invention

[0005] The purpose of the present invention is to provide an environmentally friendly glyphosate production wastewater treatment equipment and treatment method. When the gap between the installation frame and the bottom wall of the mixing chamber accumulates to a certain amount, the transmission component can drive the connecting shaft to rotate, so that the longitudinal partition is rotated to a vertical state, and the sludge attached to the longitudinal partition can settle more smoothly. The longitudinal partition can also be shaken by repeatedly rotating it back and forth in a small amplitude, thereby further promoting the shedding of the sludge.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: an environmentally friendly glyphosate production wastewater treatment equipment, comprising a glyphosate production wastewater collection tank, a regulating tank, a neutralization reaction tank, a flocculation sedimentation tank, a biological treatment tank, a disinfection tank and a clean water discharge port connected in sequence, the flocculation sedimentation tank is also connected to a sludge concentration tank, the sludge concentration tank is sequentially connected to a dewatering room and a sludge disposal unit, the flocculation sedimentation tank is sequentially provided with a mixing chamber, a sedimentation chamber and an overflow chamber, a mounting frame is fixedly installed in the sedimentation chamber, a gap is provided between the mounting frame and the bottom wall of the mixing chamber, a plurality of mutually parallel transverse partitions and a plurality of groups of longitudinal partitions are provided on the inner side of the mounting frame, a plurality of connecting shafts are rotatably installed on the mounting frame, the longitudinal partition is arranged between two adjacent transverse partitions, and the longitudinal partitions are fitted with the transverse partitions, each group of the longitudinal partitions is fixedly connected to the same connecting shaft, a transmission cavity is opened in the side wall of the mounting frame, and a transmission assembly for driving the connecting shaft to rotate is provided in the transmission cavity.

[0007] The present invention is further configured as follows: a water inlet and a drain are respectively provided on both sides of the flocculation sedimentation tank, the water inlet is connected to the mixing chamber, the overflow chamber is connected to the drain, a first partition plate and a second partition plate are fixedly installed inside the flocculation sedimentation tank, the sedimentation chamber is arranged between the first partition plate and the second partition plate, a flocculant dosing device is provided at the top of the mixing chamber, and a filter screen is fixedly installed at the top of the second partition plate.

[0008] The present invention is further configured as follows: the transmission assembly includes a gear and a rack, the gear is fixedly mounted on the end of the connecting shaft, the rack is meshed with a plurality of gears, and a driving rod for driving the rack to move is fixedly mounted on one end of the rack; a guide rail is fixedly mounted inside the transmission cavity, a slide is slidably mounted on the guide rail, the slide is fixedly connected to the rack, and the slide is elastically connected to the inner wall of the guide rail via a first spring.

[0009] The present invention is further configured as follows: a scraping mechanism is arranged below the mounting frame, and the scraping mechanism includes an electric push rod, a sliding rod, a mounting seat and a scraper, the sliding rod is slidably installed at the bottom of the inner cavity of the mixing chamber, the electric push rod is fixedly installed on one side of the first partition plate, the output end of the electric push rod is fixedly connected to the sliding rod, the mounting seat is fixedly installed at the bottom end of the sliding rod, and the top of the scraper is rotatably connected to the mounting seat through a connecting pin.

[0010] The present invention is further configured as follows: a notch is provided on the side wall of the scraper, a one-way block is provided in the notch, an inclined surface is provided on the side of the one-way block away from the water inlet, a slide groove is provided on the scraper, one end of the one-way block extends into the slide groove, and the one-way block is elastically connected to the inner wall of the slide groove through a second spring, and a limit rod adapted to the notch of the scraper side wall is fixedly installed on the inner wall of the mixing chamber, and the limit rod is horizontally arranged.

[0011] The present invention is further configured as follows: a through slot is formed on the bottom wall of the transmission cavity, and the driving rod passes through the through slot.

[0012] The present invention is further configured as follows: a mud discharge box is provided below the overflow chamber, a mud discharge port is provided at the bottom of the mud discharge box, an inlet is provided on one side of the mud discharge box close to the water inlet, and a valve assembly is provided in the inlet.

[0013] The present invention is further configured as follows: the valve assembly includes a sealing plate arranged at the entrance of the mud discharge box, a guide column fixedly installed inside the mud discharge box and a third spring sleeved on the guide column, the guide column passes through the sealing plate, and the sealing plate and the guide column are slidably matched, one end of the third spring is fixedly connected to the sealing plate, and the other end of the third spring is fixedly connected to the inner wall of the mud discharge box, and a push column is fixedly installed on the side of the sealing plate close to the scraper, and when the scraper moves toward the mud discharge box, the scraper contacts the push column and pushes the sealing plate to move to open the sealing plate.

[0014] The present invention is further configured as follows: a guide rail is fixedly installed inside the transmission cavity, a slide seat is slidably installed on the guide rail, the slide seat is fixedly connected to the rack, and the slide seat is elastically connected to the inner wall of the guide rail via a first spring.

[0015] A method for treating glyphosate production wastewater, using the above-mentioned environmentally friendly glyphosate production wastewater treatment equipment, comprises the following steps:

[0016] S1. Collect the wastewater generated during the glyphosate production process into the glyphosate production wastewater collection pool for preliminary mixing and temporary storage to stabilize the water quality and water volume;

[0017] S2. Introduce wastewater into the regulating tank to further adjust the pH value, water temperature and water quality uniformity of the wastewater to provide stable water inlet conditions for subsequent treatment processes;

[0018] S3. The regulated wastewater is input into the neutralization reaction tank, and the pH value of the wastewater is adjusted according to the acidity and alkalinity of the wastewater through the acid-base regulator dosing device, and the pollutants in the wastewater are chemically reacted to form precipitates;

[0019] S4. The wastewater after the neutralization reaction is introduced into the flocculation sedimentation tank, and flocculants are added through the flocculant dosing device to make the fine suspended particles and colloids in the wastewater condense into larger flocs. The flocs are separated from the wastewater by sedimentation, and the sludge produced by the sedimentation is discharged into the sludge concentration tank, and the supernatant enters the biological treatment tank;

[0020] S5. In the biological treatment pool, the metabolism of microorganisms is used to decompose organic pollutants in the wastewater and reduce the chemical oxygen demand (COD) and biochemical oxygen demand (BOD) indicators of the wastewater;

[0021] S6. Introduce the biologically treated wastewater into the disinfection tank and kill harmful bacteria and microorganisms in the wastewater through a disinfectant dosing device;

[0022] S7. The disinfected clean water is discharged through the clean water discharge port, and the sludge in the sludge thickening tank is dehydrated by mechanical dehydration equipment and then disposed of by sanitary landfill or incineration to prevent secondary pollution.

[0023] In summary, the present invention has the following beneficial effects: the present invention constructs a complex and efficient sedimentation channel by arranging mutually parallel transverse partitions and multiple groups of longitudinal partitions in the installation frame, and utilizes the inclined surface of the longitudinal partition, combined with the principle of shallow sedimentation, to greatly shorten the sedimentation path of the floc particles. Compared with the traditional sedimentation tank, the floc can be allowed to settle downward more quickly, accelerating the solid-liquid separation process, thereby greatly improving the sedimentation efficiency and ensuring the efficient operation of the entire sewage treatment process; the traditional sedimentation tank is prone to floc accumulation due to its inclined structure, requiring frequent manual cleaning or shutdown flushing, while in this solution, when the sludge accumulates to a certain amount in the gap between the installation frame and the bottom wall of the mixing chamber, the transmission component can drive the connecting shaft to rotate, so that the longitudinal partition rotates to a vertical state, and the sludge attached to the longitudinal partition can settle more smoothly, and the longitudinal partition can also be rotated back and forth in a small amplitude for multiple times to cause it to shake, further promoting the sludge to fall off. This design does not require manual frequent entry into the sedimentation tank to clean up the sludge, reduces the downtime and maintenance time, significantly reduces the operation and maintenance costs, and improves the stability and sustainability of the equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the glyphosate production wastewater treatment equipment of the present invention;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the flocculation sedimentation tank of the present invention;

[0026] Figure 3 It is a schematic cross-sectional structure diagram of a flocculation sedimentation tank of the present invention;

[0027] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at point A;

[0028] Figure 5 For the present invention Figure 3 A schematic diagram of the enlarged structure at B;

[0029] Figure 6 It is a schematic diagram of the structure of the transverse partition, the longitudinal partition and the transmission assembly of the present invention;

[0030] Figure 7 It is a structural schematic diagram of the transmission assembly of the present invention;

[0031] Figure 8It is a cross-sectional structural schematic diagram of the mud discharge box and the valve assembly of the present invention;

[0032] Fig. 9 It is a schematic structural diagram of the sliding rod, the scraper and the limiting rod of the present invention;

[0033] Fig.10 It is a schematic cross-sectional structural diagram of the scraper of the present invention.

[0034] In the figure: 1, flocculation sedimentation tank; 101, mixing chamber; 102, sedimentation chamber; 103, overflow chamber; 104, water inlet; 105, drain outlet; 2, mounting frame; 201, transmission chamber; 202, through groove; 3, horizontal partition; 4, longitudinal partition; 5, connecting shaft; 6, gear; 7, rack; 8, guide rail; 9, slide seat; 10, first spring; 11, driving rod; 12, flocculant dosing device; 13, first partition; 14, second partition; 15, filter screen; 16, slide rod; 17, mounting seat; 18, scraper; 19, connecting pin; 20, one-way block; 21, second spring; 22, limit rod; 23, mud discharge box; 2301, mud discharge outlet; 24, sealing plate; 25, push column; 26, guide column; 27, third spring; 28, electric push rod. DETAILED DESCRIPTION

[0035] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0036] See also Figure 1 to Figure 7 In an embodiment of the present invention, an environmentally friendly glyphosate production wastewater treatment equipment comprises a glyphosate production wastewater collection tank, a regulating tank, a neutralization reaction tank, a flocculation sedimentation tank 1, a biological treatment tank, a disinfection tank and a clean water discharge port connected in sequence, the flocculation sedimentation tank 1 is also connected to a sludge concentration tank, and the sludge concentration tank is connected to a dewatering room and a sludge disposal unit in sequence;

[0037] Among them, the glyphosate production wastewater collection tank is used to collect various types of wastewater generated in the glyphosate production process, and to preliminarily mix and temporarily store the wastewater to stabilize the water quality and water volume. The regulating tank is used to further adjust the pH value, water temperature and water quality uniformity of the wastewater to provide stable water inlet conditions for subsequent treatment processes. The neutralization reaction tank is provided with an acid-base regulator dosing device, which can adjust the pH value of the wastewater to a range suitable for subsequent treatment according to the pH value of the wastewater, and promote the heavy metal ions and other pollutants in the wastewater to undergo chemical reactions to generate precipitates. The flocculation sedimentation tank 1 is provided with a flocculant dosing device 12, which is used to add flocculants to make the fine suspended particles and colloids in the wastewater condense into larger flocs, and use the sedimentation effect to separate the flocs from the wastewater. The sludge produced by the precipitation is discharged into the sludge concentration tank, and the supernatant enters Biological treatment tank: The biological treatment tank contains specific microbial strains, which decompose organic pollutants in wastewater through the metabolism of microorganisms, reduce the chemical oxygen demand (COD) and biochemical oxygen demand (BOD) of wastewater, and the disinfection tank is equipped with a disinfectant dosing device to kill harmful bacteria and microorganisms in wastewater to ensure that the treated clean water meets the sanitary standards and is discharged through the clean water outlet. The sludge thickening tank is used to thicken the sludge from the flocculation sedimentation tank 1 to reduce the sludge volume for subsequent treatment. The dewatering room is equipped with mechanical dewatering equipment to dehydrate the concentrated sludge to further reduce the water content of the sludge and facilitate the transportation and disposal of the sludge. The sludge disposal unit adopts sanitary landfill, incineration or other environmentally friendly and safe methods to dispose of the dehydrated sludge to prevent secondary pollution.

[0038] Among them, the flocculation sedimentation tank 1 is sequentially provided with a mixing chamber 101, a sedimentation chamber 102 and an overflow chamber 103, and a water inlet 104 and a drain port 105 are respectively provided on both sides of the flocculation sedimentation tank 1, the water inlet 104 is connected to the mixing chamber 101, and the overflow chamber 103 is connected to the drain port 105, a mounting frame 2 is fixedly installed in the sedimentation chamber 102, a gap is provided between the mounting frame 2 and the bottom wall of the mixing chamber 101, and the gap is used to discharge the precipitated sludge, a plurality of mutually parallel transverse partitions 3 and a plurality of groups of longitudinal partitions 4 are provided on the inner side of the mounting frame 2, a plurality of connecting shafts 5 are rotatably installed on the mounting frame 2, the longitudinal partition 4 is provided between two adjacent transverse partitions 3, and the longitudinal partition 4 is fitted with the transverse partition 3, and each group of the longitudinal partitions 4 is fixedly connected to the same connecting shaft 5, a transmission chamber 201 is provided in the side wall of the mounting frame 2, and a transmission assembly for driving the connecting shaft 5 to rotate is provided in the transmission chamber 201.

[0039] During specific use, by adding flocculants into the mixing chamber 101, the fine suspended particles and colloids in the wastewater are condensed into larger flocs, and the wastewater then flows over the first partition plate 13 into the sedimentation chamber 102, where the flocs settle downward and enter the channel formed by the transverse partition plate 3 and the longitudinal partition plate 4. The flocs settle downward along the inclined surface on the longitudinal partition plate 4, and finally gradually settle into the gap between the mounting frame 2 and the bottom wall of the mixing chamber 101. When the sludge accumulates to a certain amount, the transmission component will drive the multiple connecting shafts 5 to rotate, so that the longitudinal partition plate 4 rotates to a vertical state, thereby promoting the sludge attached to the longitudinal partition plate 4 to settle downward more easily. At this time, the transmission component can also drive the longitudinal partition plate 4 to perform multiple small reciprocating rotations, causing the partition plate to shake, further promoting the shedding of the sludge. This solution constructs a complex and efficient sedimentation system by arranging mutually parallel transverse partition plates 3 and multiple groups of longitudinal partition plates 4 in the mounting frame 2. The sedimentation channel utilizes the inclined surface of the longitudinal partition 4 and combines it with the principle of shallow sedimentation to greatly shorten the sedimentation path of the floc particles. Compared with the traditional sedimentation tank, it can make the floc settle downward more quickly and accelerate the solid-liquid separation process, thereby greatly improving the sedimentation efficiency and ensuring the efficient operation of the entire sewage treatment process. The traditional sedimentation tank is prone to floc accumulation due to its inclined structure, requiring frequent manual cleaning or shutdown flushing. In this solution, when the sludge accumulates to a certain amount in the gap between the mounting frame 2 and the bottom wall of the mixing chamber 101, the transmission component can drive the connecting shaft 5 to rotate, so that the longitudinal partition 4 rotates to a vertical state, and the sludge attached to the longitudinal partition 4 can settle more smoothly, and the longitudinal partition 4 can also be rotated back and forth in a small amplitude for multiple times to cause it to shake, further promoting the sludge shedding. This design does not require manual frequent entry into the sedimentation tank to clean up the sludge, reduces downtime for maintenance, significantly reduces operation and maintenance costs, and improves the stability and sustainability of equipment operation.

[0040] In this embodiment, preferably, the transmission assembly includes a gear 6 and a rack 7, the gear 6 is fixedly mounted on the end of the connecting shaft 5, the rack 7 is meshed with multiple gears 6, and one end of the rack 7 is fixedly mounted with a driving rod 11 for driving the rack 7 to move; a guide rail 8 is fixedly mounted inside the transmission chamber 201, a slide 9 is slidably mounted on the guide rail 8, the slide 9 is fixedly connected to the rack 7, and the slide 9 is elastically connected to the inner wall of the guide rail 8 through a first spring 10; the rack 7 can be driven to move by the driving rod 11, and when the rack 7 moves, it drives multiple gears 6 to move synchronously, thereby driving multiple connecting shafts 5 to rotate, and when the connecting shaft 5 rotates, it drives multiple longitudinal partitions 4 to rotate, thereby realizing the adjustment of the inclination angle of the longitudinal partition 4.

[0041] In this embodiment, preferably, the inside of the flocculation sedimentation tank 1 is fixedly installed with a first partition plate 13 and a second partition plate 14, the sedimentation chamber 102 is arranged between the first partition plate 13 and the second partition plate 14, and the top of the mixing chamber 101 is provided with a flocculant dosing device 12. The flocculant adding device is a prior art and can automatically add flocculant to the mixing chamber 101. The top of the second partition plate 14 is fixedly installed with a filter screen 15, and the upper cleaning that overflows into the overflow chamber 103 can be filtered through the filter screen 15 to prevent sludge from entering the overflow chamber 103.

[0042] See also Figures 3 to 10 In the embodiment of the present invention, a scraping mechanism is provided below the mounting frame 2, and the scraping mechanism includes an electric push rod 28, a slide bar 16, a mounting seat 17 and a scraper 18. The slide bar 16 is slidably mounted at the bottom of the inner cavity of the mixing chamber 101, and the electric push rod 28 is fixedly mounted on one side of the first partition plate 13. The output end of the electric push rod 28 is fixedly connected to the slide bar 16, and the mounting seat 17 is fixedly mounted on the bottom of the slide bar 16. The top of the scraper 18 is rotatably connected to the mounting seat 17 through a connecting pin 19, and the rotation range of the scraper 18 is 0-90 degrees. When the scraper 18 is in a vertical state, it can only rotate to the right and cannot rotate to the left. A torsion spring is arranged on the connecting pin 19 so that the scraper 18 can be reset to a vertical state. A notch is provided on the side wall of the scraper 18, and a one-way stopper 20 is arranged in the notch. An inclined surface is arranged on the side of the one-way stopper 20 away from the water inlet 104. A chute is provided on the scraper 18, and one end of the one-way stopper 20 extends into the chute. The one-way stopper 20 is elastically connected to the inner side wall of the chute through a second spring 21. The inner side wall of the mixing chamber 101 is fixedly installed with a one-way stopper 20 connected to the side wall of the scraper 18. The limit rod 22 is adapted to the notch in the wall, and the limit rod 22 is arranged horizontally; when a certain amount of sludge is deposited in the sedimentation chamber 102, the slide bar 16 is driven to move to the left by the electric push rod 28, and when the slide bar 16 moves to the left, the scraper 18 is driven to move to the left through the mounting seat 17. At this time, since the vertical surface of the one-way stopper 20 is in contact with the limit rod 22, the one-way stopper 20 cannot be retracted into the slide groove, so that the scraper 18 rotates to the upper right, so that the bottom wall of the scraper 18 is separated from the bottom wall of the sedimentation chamber 102, so that the scraper 18 will not scrape the bottom sediment when it moves to the left. sludge, and when the scraper 18 moves to the left and is separated from the limit rod 22, the scraper 18 rotates downward to reset, so that the bottom wall of the scraper 18 fits with the bottom wall of the sedimentation chamber 102, and after moving to the left to the limit position, the electric push rod 28 can be used to drive the scraper 18 to move to the right. As the scraper 18 moves to the right, the limit rod 22 contacts the inclined surface of the one-way block 20, so that the one-way block 20 gradually shrinks to the inside of the chute, so that the scraper 18 can move to the right in a vertical state, thereby pushing the sludge at the bottom of the sedimentation chamber 102 to move to the right;

[0043] Under the coordinated action of the one-way block 20 and the limit rod 22, the scraper 18 realizes different actions in different stroke stages. When moving to the left, the scraper 18 is lifted to avoid disturbing the settled sludge. When moving to the right, the scraper 18 falls and pushes the sludge, effectively cleaning the sludge at the bottom of the sedimentation chamber 102. This intelligent sludge scraping method not only improves the sludge cleaning efficiency, but also reduces interference with the sedimentation process, thereby ensuring the stability of the sedimentation effect.

[0044] In this embodiment, preferably, a through groove 202 is provided on the bottom wall of the transmission chamber 201, and the driving rod 11 passes through the through groove 202. A sealing structure such as a rubber sealing sleeve can be provided on the through groove 202 to seal the through groove 202 to prevent sewage from entering the transmission chamber 201. When the sliding rod 16 moves to the side close to the mixing chamber 101, the sliding rod 16 contacts the driving rod 11 and pushes the driving rod 11 to move toward the mixing chamber 101. When the sliding rod 16 moves to the right, the driving rod 11 moves to the right together under the elastic action of the spring.

[0045] See also Figure 5 and Figure 8 In the embodiment of the present invention, a mud discharge box 23 is provided below the overflow chamber 103, and a mud discharge port 2301 is provided at the bottom of the mud discharge box 23. An inlet is provided on one side of the mud discharge box 23 close to the water inlet 104, and a valve assembly is provided in the inlet; the valve assembly includes a sealing plate 24 provided at the inlet of the mud discharge box 23, a guide column 26 fixedly installed inside the mud discharge box 23, and a third spring 27 sleeved on the guide column 26, the guide column 26 passes through the sealing plate 24, and the sealing plate 24 and the guide column 2 6 sliding fit, one end of the third spring 27 is fixedly connected to the sealing plate 24, and the other end of the third spring 27 is fixedly connected to the inner wall of the mud discharge box 23. A push column 25 is fixedly installed on the side of the sealing plate 24 close to the scraper 18. When the scraper 18 moves toward the mud discharge box 23, the scraper 18 contacts the push column 25 and pushes the sealing plate 24 to move and open the sealing plate 24, so that the sludge pushed out by the scraper 18 enters the mud discharge box 23 through the inlet on the mud discharge box 23 and is discharged downward through the mud discharge port 2301;

[0046] The mud discharge box 23 and valve assembly arranged below the overflow chamber 103 realize the automatic discharge of sludge. When the scraper 18 pushes the sludge to the entrance of the mud discharge box 23, the push column 25 pushes the sealing plate 24 to open, and the sludge smoothly enters the mud discharge box 23 and is discharged through the mud discharge port 2301. The whole process does not require manual intervention, reducing the manual operation cost, and also avoiding the problems of sludge leakage caused by improper manual operation, optimizing the sewage treatment process, and improving the overall operation efficiency of the equipment.

[0047] The present invention also discloses a method for treating glyphosate production wastewater, comprising the following steps:

[0048] S1. Collect the wastewater generated during the glyphosate production process into the glyphosate production wastewater collection pool for preliminary mixing and temporary storage to stabilize the water quality and water volume;

[0049] S2. Introduce wastewater into the regulating tank to further adjust the pH value, water temperature and water quality uniformity of the wastewater to provide stable water inlet conditions for subsequent treatment processes;

[0050] S3. The regulated wastewater is input into the neutralization reaction tank, and the pH value of the wastewater is adjusted according to the acidity and alkalinity of the wastewater through the acid-base regulator dosing device, and the pH value is 6.5-8.5, and the pollutants such as heavy metal ions in the wastewater are chemically reacted to form precipitates;

[0051] S4. The wastewater after the neutralization reaction is introduced into the flocculation sedimentation tank 1, and a flocculant is added through the flocculant dosing device 12 to make the fine suspended particles and colloids in the wastewater condense into larger flocs, and the flocs are separated from the wastewater by sedimentation. The sludge produced by the sedimentation is discharged into the sludge concentration tank, and the supernatant enters the biological treatment tank;

[0052] S5. In the biological treatment pool, the metabolism of microorganisms is used to decompose organic pollutants in the wastewater, reduce the chemical oxygen demand (COD) and biochemical oxygen demand (BOD) of the wastewater, and reduce the chemical oxygen demand (COD) of the wastewater to below 50mg / L, and the biochemical oxygen demand (BOD) to below 10mg / L;

[0053] S6. Introduce the biologically treated wastewater into the disinfection tank, and kill harmful bacteria and microorganisms in the wastewater through the disinfectant dosing device to ensure that the treated clean water meets the hygiene standards;

[0054] S7. The disinfected clean water is discharged through the clean water discharge port, and the sludge in the sludge thickening tank is dehydrated by mechanical dehydration equipment and then disposed of by sanitary landfill or incineration to prevent secondary pollution.

[0055] Working principle: All kinds of wastewater generated during the glyphosate production process first flow into the glyphosate production wastewater collection pool, where the wastewater is preliminarily mixed and temporarily stored to stabilize the water quality and water volume, providing relatively stable water inlet conditions for subsequent treatment. Then, the wastewater enters the regulating pool to further adjust its pH value, water temperature and water quality uniformity. The adjusted wastewater flows into the neutralization reaction pool, which is equipped with an acid-base regulator dosing device to adjust the pH value to a range suitable for subsequent treatment according to the acidity and alkalinity of the wastewater, and at the same time, it promotes the chemical reaction of pollutants such as heavy metal ions in the wastewater to form precipitates;

[0056] The wastewater after the neutralization reaction enters the flocculation sedimentation tank 1, which is sequentially provided with a mixing chamber 101, a sedimentation chamber 102 and an overflow chamber 103. The wastewater flows into the mixing chamber 101 from the water inlet 104. The flocculant dosing device 12 at the top of the mixing chamber 101 adds flocculants into the chamber to make the fine suspended particles and colloids in the wastewater condense into larger flocs. Subsequently, the wastewater flows over the first partition plate 13 into the sedimentation chamber 102. The flocs in the sedimentation chamber 102 settle downward along the inclined surface of the longitudinal partition plate 4. Combined with the principle of shallow sedimentation, the sedimentation path is greatly shortened, and the solid-liquid separation is accelerated. The precipitated sludge finally settles into the gap between the mounting frame 2 and the bottom wall of the mixing chamber 101, and the supernatant passes over the filter screen 15 at the top of the second partition plate 14, flows into the drain port 105 through the overflow port, and enters the subsequent biological treatment tank.

[0057] The scraper mechanism below the mounting frame 2 is responsible for cleaning the sludge at the bottom of the sedimentation chamber 102. When a certain amount of sludge is deposited in the sedimentation chamber 102, the electric push rod 28 drives the slide bar 16 to move to the left, and the slide bar 16 drives the scraper 18 to move to the left through the mounting seat 17. At this time, since the vertical surface of the one-way stopper 20 is in contact with the limit rod 22, the one-way stopper 20 cannot be retracted into the slide groove of the scraper 18, so that the scraper 18 rotates to the upper right, and the bottom wall of the scraper 18 is separated from the bottom wall of the sedimentation chamber 102, avoiding In order to avoid scraping the sludge deposited at the bottom when moving to the left, when the scraper 18 moves to the left and separates from the limit rod 22, the scraper 18 rotates downward and resets under the action of the torsion spring, and the bottom wall fits with the bottom wall of the sedimentation chamber 102. After reaching the limit position, the electric push rod 28 drives the scraper 18 to move to the right, and the limit rod 22 contacts the inclined surface of the one-way block 20. The one-way block 20 gradually shrinks to the inside of the chute, and the scraper 18 moves to the right in a vertical state, pushing the sludge at the bottom of the sedimentation chamber 102 to move to the right;

[0058] Furthermore, when the slide bar 16 moves to the left until it contacts the drive bar 11, the slide bar 16 can push the drive bar 11 to move, and the drive bar 11 pushes the rack 7 to slide on the guide rail 8, and the rack 7 is meshed with a plurality of gears 6 fixed at the ends of the connecting shafts 5, driving the plurality of connecting shafts 5 to rotate synchronously, thereby rotating the longitudinal partition 4 to a vertical state, promoting smoother sedimentation of the sludge attached to the longitudinal partition 4, and further promoting the sludge to fall off by repeatedly rotating the longitudinal partition 4 in a small amplitude back and forth.

[0059] When the scraper 18 pushes the sludge to the entrance of the mud discharge box 23 below the overflow chamber 103, the scraper 18 contacts the push column 25 and pushes the sealing plate 24 to move so that the sealing plate 24 is opened, and the sludge enters the mud discharge box 23 and is discharged downward through the mud discharge port 2301 at the bottom of the mud discharge box 23, thereby realizing automatic discharge of the sludge;

[0060] The supernatant after flocculation and sedimentation treatment enters the biological treatment tank, where specific microbial species in the tank decompose organic pollutants in the wastewater through metabolism, reducing the chemical oxygen demand (COD) and biochemical oxygen demand (BOD) indicators of the wastewater. After that, the wastewater enters the disinfection tank, where harmful pathogens and microorganisms are killed through the disinfectant dosing device to ensure that the treated clean water meets the hygiene standards and is discharged through the clean water outlet.

[0061] The sludge discharged from the flocculation sedimentation tank 1 first enters the sludge thickening tank for concentration to reduce the sludge volume for subsequent treatment. Subsequently, the sludge moisture content is further reduced by mechanical dehydration equipment in the dehydration room. Finally, the sludge disposal unit disposes of the dehydrated sludge by sanitary landfill, incineration or other environmentally friendly and safe methods to prevent secondary pollution.

[0062] The above description is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. An environmentally friendly glyphosate production wastewater treatment equipment, comprising a glyphosate production wastewater collection tank, a regulating tank, a neutralization reaction tank, a flocculation sedimentation tank, a biological treatment tank, a disinfection tank and a clean water discharge port connected in sequence, wherein the flocculation sedimentation tank is also connected to a sludge concentration tank, and the sludge concentration tank is connected to a dewatering room and a sludge disposal unit in sequence, characterized in that: The flocculation sedimentation tank is provided with a mixing chamber, a sedimentation chamber and an overflow chamber in sequence, a mounting frame is fixedly installed in the sedimentation chamber, a gap is provided between the mounting frame and the bottom wall of the mixing chamber, a plurality of mutually parallel transverse partitions and a plurality of groups of longitudinal partitions are provided on the inner side of the mounting frame, a plurality of connecting shafts are rotatably installed on the mounting frame, the longitudinal partitions are provided between two adjacent transverse partitions, each group of the longitudinal partitions is fixedly connected to the same connecting shaft, a transmission chamber is provided in the side wall of the mounting frame, a transmission assembly for driving the connecting shaft to rotate is provided in the transmission chamber.

2. The environmentally friendly glyphosate production wastewater treatment equipment according to claim 1, characterized in that: A water inlet and a drain are respectively arranged on both sides of the flocculation sedimentation tank, the water inlet is connected to the mixing chamber, and the overflow chamber is connected to the drain. A first partition plate and a second partition plate are fixedly installed inside the flocculation sedimentation tank, and the sedimentation chamber is arranged between the first partition plate and the second partition plate. A flocculant dosing device is arranged at the top of the mixing chamber, and a filter screen is fixedly installed at the top of the second partition plate.

3. The environmentally friendly glyphosate production wastewater treatment equipment according to claim 1, characterized in that: The transmission assembly includes a gear and a rack. The gear is fixedly mounted on the end of the connecting shaft. The rack is meshed with a plurality of gears. A driving rod for driving the rack to move is fixedly mounted on one end of the rack.

4. The environmentally friendly glyphosate production wastewater treatment equipment according to claim 3 is characterized by: A scraping mechanism is arranged below the mounting frame, and the scraping mechanism includes an electric push rod, a sliding rod, a mounting seat and a scraper. The sliding rod is slidably mounted at the bottom of the inner cavity of the mixing chamber, the electric push rod is fixedly mounted on one side of the first partition plate, the output end of the electric push rod is fixedly connected to the sliding rod, the mounting seat is fixedly mounted on the bottom end of the sliding rod, and the top of the scraper is rotatably connected to the mounting seat through a connecting pin.

5. The environmentally friendly glyphosate production wastewater treatment equipment according to claim 4, characterized in that: A notch is provided on the side wall of the scraper, a one-way block is arranged in the notch, an inclined surface is provided on the side of the one-way block away from the water inlet, a slide groove is provided on the scraper, one end of the one-way block extends into the slide groove, and the one-way block is elastically connected to the inner wall of the slide groove through a second spring, and a limiting rod adapted to the notch of the scraper side wall is fixedly installed on the inner wall of the mixing chamber, and the limiting rod is horizontally arranged.

6. The environmentally friendly glyphosate production wastewater treatment equipment according to claim 4, characterized in that: The bottom wall of the transmission cavity is provided with a through slot, and the driving rod passes through the through slot.

7. The environmentally friendly glyphosate production wastewater treatment equipment according to claim 4, characterized in that: A mud discharge box is arranged below the overflow cavity, a mud discharge port is arranged at the bottom of the mud discharge box, an inlet is arranged on one side of the mud discharge box close to the water inlet, and a valve assembly is arranged in the inlet.

8. The environmentally friendly glyphosate production wastewater treatment equipment according to claim 7, characterized in that: The valve assembly includes a sealing plate arranged at the entrance of the mud discharge box, a guide column fixedly installed inside the mud discharge box and a third spring sleeved on the guide column. The guide column passes through the sealing plate, and the sealing plate and the guide column are slidably matched. One end of the third spring is fixedly connected to the sealing plate, and the other end of the third spring is fixedly connected to the inner wall of the mud discharge box. A push column is fixedly installed on the side of the sealing plate close to the scraper. When the scraper moves toward the mud discharge box, the scraper contacts the push column and pushes the sealing plate to move to open the sealing plate.

9. The environmentally friendly glyphosate production wastewater treatment equipment according to claim 3, characterized in that: A guide rail is fixedly installed inside the transmission cavity, a slide seat is slidably installed on the guide rail, the slide seat is fixedly connected to the rack, and the slide seat is elastically connected to the inner side wall of the guide rail through a first spring.

10. A method for treating glyphosate production wastewater, using the environmentally friendly glyphosate production wastewater treatment equipment according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Collect the wastewater generated during the glyphosate production process into the glyphosate production wastewater collection pool for preliminary mixing and temporary storage to stabilize the water quality and water volume; S2. Introduce wastewater into the regulating tank to further adjust the pH value, water temperature and water quality uniformity of the wastewater to provide stable water inlet conditions for subsequent treatment processes; S3. The regulated wastewater is input into the neutralization reaction tank, and the pH value of the wastewater is adjusted according to the acidity and alkalinity of the wastewater through the acid-base regulator dosing device, and the pollutants in the wastewater are chemically reacted to form precipitates; S4. The wastewater after the neutralization reaction is introduced into the flocculation sedimentation tank, and flocculants are added through the flocculant dosing device to make the fine suspended particles and colloids in the wastewater condense into larger flocs. The flocs are separated from the wastewater by sedimentation, and the sludge produced by the sedimentation is discharged into the sludge concentration tank, and the supernatant enters the biological treatment tank; S5. In the biological treatment pool, the metabolism of microorganisms is used to decompose organic pollutants in the wastewater and reduce the chemical oxygen demand (COD) and biochemical oxygen demand (BOD) indicators of the wastewater; S6. Introduce the biologically treated wastewater into the disinfection tank and kill harmful bacteria and microorganisms in the wastewater through a disinfectant dosing device; S7. The disinfected clean water is discharged through the clean water discharge port, and the sludge in the sludge thickening tank is dehydrated by mechanical dehydration equipment and then disposed of by sanitary landfill or incineration to prevent secondary pollution.

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