Integrated wastewater treatment device for biological laboratory

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to an integrated wastewater treatment device for a biological laboratory, which is convenient to operate, capable of treating wastewater for multiple times, good in disinfection efficiency and convenient to use. Comprising a treatment box, a plurality of moving wheels, a plurality of partition plates, a discharge pipe, a collecting and primary filtering assembly, a mixing assembly, an aeration assembly, a filtering assembly and a supporting assembly, the collecting and primary filtering assembly is installed at the top of the treatment box, and the moving wheels are installed at the bottom of the treatment box so that equipment can be conveniently moved; the interior of the treatment box is divided into a mixing disinfection cavity, an aeration cavity and a filtering cavity from top to bottom, the mixing assembly is installed in the mixing disinfection cavity, the aeration assembly is installed in the aeration cavity, the filtering assembly is installed in the filtering cavity, the supporting assembly is installed on the side wall of the bottom of the treatment box, and the lower portion of the left side wall of the treatment box is communicated with the filtering cavity and provided with a discharging pipe. And a valve is arranged on the discharge pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment, and in particular to an integrated wastewater treatment device for biological laboratories. Background Technology

[0002] Laboratory wastewater is a unique type of wastewater found in universities, research institutes, and corporate R&D bases. Due to the different nature of laboratories, the wastewater quality varies significantly. Furthermore, due to its unique pollutant composition, laboratory wastewater is difficult to treat effectively in municipal sewage treatment plants. Therefore, laboratory wastewater must undergo preliminary treatment before being discharged into the municipal sewer system for further treatment at municipal sewage treatment plants to meet discharge standards. Existing technology announcement number CN205856223U proposes an integrated treatment device for biological culture laboratory wastewater, including an inlet pipe, a tank, a packing box, an outlet pipe, and a control panel. However, treating biological laboratory wastewater requires introducing disinfectant to disinfect the wastewater, followed by stirring—a time-consuming and labor-intensive process that is quite cumbersome. Further disinfection with ultraviolet lamps only irradiates the surface of the wastewater; the ultraviolet light is blocked by various suspended matter in the wastewater, preventing it from reaching the lower layers and thus failing to completely kill harmful substances. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides an integrated wastewater treatment device for biological laboratories that is easy to operate, can treat wastewater multiple times, has good disinfection efficiency, and is convenient to use.

[0004] This utility model discloses an integrated wastewater treatment device for a biological laboratory, comprising a treatment tank, multiple casters, multiple partitions, a discharge pipe, a primary filtration assembly, a mixing assembly, an aeration assembly, a filtration assembly, and a support assembly. The primary filtration assembly is installed on the top of the treatment tank, and multiple casters are installed on the bottom for easy movement. Multiple partitions inside the treatment tank divide the interior into a mixing and disinfection chamber, an aeration chamber, and a filtration chamber from top to bottom. The mixing assembly is installed in the mixing and disinfection chamber, the aeration assembly in the aeration chamber, and the filtration assembly in the filtration chamber. A support assembly is installed on the bottom side wall of the treatment tank. A discharge pipe is installed on the lower left side wall of the treatment box, which is connected to the filtration chamber. A valve is installed on the discharge pipe. Multiple casters facilitate the movement of the equipment to the operating position. The device is fixed in place by a support assembly. The primary filtration assembly collects laboratory wastewater and inputs it into the mixing and disinfection chamber. After the disinfectant is added to the mixing and disinfection chamber, the mixing assembly agitates the disinfectant and wastewater. The operation is convenient and the disinfection efficiency is good. The disinfected wastewater is input into the aeration chamber for secondary aeration and sterilization. Then it is input into the filtration chamber for filtration and finally discharged into the municipal sewage network through the discharge pipe.

[0005] Preferably, the primary filtration collection assembly includes a collection hopper, a baffle ring, and a sieve cylinder. The collection hopper is fixedly connected to the top left end of the treatment box, and a baffle ring is fixedly installed on the upper side of the inner wall of the collection hopper. The sieve cylinder is placed on the baffle ring. The used laboratory wastewater is poured into the collection hopper, and the sieve cylinder can block and filter large impurities before being fed into the mixing and disinfection chamber for convenient use.

[0006] Preferably, the mixing assembly includes a drive motor, a main shaft, a spiral conveyor blade, a transmission wheel, two stirring shafts, two drive wheels, two transmission belts, multiple sets of stirring blades, and multiple sets of stirring plates. The drive motor is installed in the middle of the outer wall of the mixing and disinfection chamber. The output end of the drive motor extends into the mixing and disinfection chamber and is connected to the main shaft. The main shaft is rotatably installed inside the mixing and disinfection chamber. Spiral conveyor blades are installed on the outer wall of the main shaft. The right end of the main shaft passes through the right side wall of the mixing and disinfection chamber and is equipped with a transmission wheel. The two stirring shafts are symmetrically installed in the mixing and disinfection chamber about the main shaft. A drive wheel is installed on the right input end of the stirring shaft. The transmission wheel is connected to the drive wheel through two transmission belts. Multiple stirring blades are uniformly fixed on the outer wall of the stirring shaft, and stirring plates are installed on the stirring blades. After the disinfectant is added to the mixing and disinfection chamber through the collection hopper, the drive motor is started to drive the main shaft to rotate. The main shaft drives the spiral conveyor blades to rotate and push the liquid. When the main shaft rotates, it drives the stirring shaft to rotate through the transmission wheel, transmission belt, and drive wheel. The stirring shaft drives the multiple stirring blades and stirring plates to rotate, mixing and agitating the disinfectant and wastewater. The operation is convenient and the disinfection efficiency is good.

[0007] Preferably, it also includes a protective cover, an extraction pipe, an extraction pump, and an output pipe. The protective cover has fixing ears at both ends, and fixing bolts are screwed onto the fixing ears. The protective cover is mounted on the right side wall of the treatment box outside the transmission wheel and transmission belt through the fixing bolts. The input end of the extraction pipe is connected to the inside of the mixing and disinfection chamber. An extraction pump is installed on the extraction pipe, and the output end of the extraction pump is connected to the output pipe. The output end of the output pipe enters the left side of the aeration chamber. The protective cover can protect the transmission components, avoid danger, and improve safety. When the extraction pump is started, the wastewater is extracted through the extraction pipe and entered into the aeration chamber through the output pipe.

[0008] Preferably, the aeration assembly includes an ozone generator, an aeration pipe, multiple aeration heads, a water pumping pipe, and a diversion pipe. The ozone generator is installed on the outer left wall of the aeration chamber. The output end of the ozone generator extends into the aeration chamber and is connected to the aeration pipe. Multiple aeration heads are connected to the aeration pipe. A balance valve is installed on the upper left side of the aeration chamber. The water pumping pipe is installed on the outer right wall of the aeration chamber. The input end of the water pumping pipe is connected to the inside of the aeration chamber. The output end of the water pumping pipe is connected to the diversion pipe. Multiple drain pipes are installed on the diversion pipe, and the drain pipes are connected to the inside of the filtration chamber. The ozone generator is started to input ozone into the aeration pipe, which is discharged into the wastewater through the aeration heads to aerate and sterilize the wastewater, thereby improving the treatment effect of the wastewater. The water pumping pipe is started to extract the treated wastewater from the aeration chamber and input it into the filtration chamber through the diversion pipe.

[0009] Preferably, the filter assembly includes a coarse filter, a fine filter, an adsorption layer, a polyether membrane filter layer, a PP cotton filter layer, an activated carbon layer, multiple insert strips, a sealing plate, and handles. Insert strips are installed at both the top and bottom of the coarse filter, fine filter, adsorption layer, polyether membrane filter layer, PP cotton filter layer, and activated carbon layer. Multiple sealing slots matching the insert strips are provided at both the top and bottom of the filter chamber. The sealing plate is installed at the front end of the filter chamber, and two handles are installed at the front end of the sealing plate. The treated wastewater is filtered through the coarse filter, fine filter, and adsorption layer to remove impurities. Simultaneously, the polyether membrane filter layer, PP cotton filter layer, and activated carbon layer further sterilize the wastewater, ensuring effective treatment. Removing the sealing plate allows the insert strips to be pulled out from the sealing groove, enabling individual replacement of each filter screen, facilitating use and improving practicality.

[0010] Preferably, the support assembly includes multiple fixed blocks, adjusting blocks, and a fixing frame. The multiple fixed blocks are respectively installed at the front and rear ends of the left and right outer walls of the processing box. The fixed blocks have adjusting grooves inside, and the adjusting blocks are slidably installed in the adjusting grooves. The fixing frame is fixedly installed on the outer wall of the adjusting blocks. The adjusting blocks are provided with fastening bolts, and the fixing frame has fixing holes. After the equipment is moved to the use position, the adjusting blocks are pushed to slide in the adjusting grooves, so that the fixing frame contacts the ground. The fastening bolts are tightened to fix the adjusting blocks. The fixing pins pass through the fixing holes to install the fixing frame, ensuring the stability of the equipment during use.

[0011] Compared with the prior art, the advantages of this utility model are as follows: multiple moving wheels facilitate the movement of the equipment to the usage position; the support component device limits and fixes the device; the collection primary filter component collects laboratory wastewater and inputs it into the mixing and disinfection chamber; after adding disinfectant to the mixing and disinfection chamber, the mixing component agitates the disinfectant and wastewater, making operation convenient and disinfection efficiency good; the disinfected wastewater is input into the aeration chamber for re-aeration and sterilization treatment, and then input into the filtration chamber for filtration, before being discharged into the municipal sewage network through the discharge pipe. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the isometric structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0015] Figure 4 This is a partial cross-sectional structural schematic diagram of the present invention;

[0016] Figure 5 This is a front cross-sectional structural diagram of the present invention;

[0017] The attached diagram shows the following components: 1. Processing box; 2. Moving wheel; 3. Collection hopper; 4. Baffle ring; 5. Screen cylinder; 6. Baffle plate; 7. Drive motor; 8. Main shaft; 9. Spiral conveyor blade; 10. Transmission wheel; 11. Stirring shaft; 12. Drive wheel; 13. Transmission belt; 14. Stirring blade; 15. Stirring plate; 16. Protective cover; 17. Extraction pipe; 18. Extraction pump; 19. Output pipe; 20. Ozone generator; 21. Aeration pipe; 22. Aeration head; 23. Water pumping pipe; 24. Diversion pipe; 25. Coarse filter screen; 26. Fine filter screen; 27. Adsorption layer; 28. Polyether membrane filter layer; 29. ​​PP cotton filter layer; 30. Activated carbon layer; 31. Insert strip; 32. Sealing plate; 33. Handle; 34. Fixing block; 35. Adjusting block; 36. Fixing frame; 37. Discharge pipe. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0019] Example 1

[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, the bottom of the treatment box 1 is equipped with multiple casters 2 for easy movement. The interior of the treatment box 1 is divided into a mixing and disinfection chamber, an aeration chamber, and a filtration chamber from top to bottom by multiple partitions 6. A discharge pipe 37 is installed on the lower left side wall of the treatment box 1, communicating with the filtration chamber. A valve is installed on the discharge pipe 37. A collection hopper 3 is fixedly connected to the top left end of the treatment box 1. A baffle ring 4 is fixedly installed on the upper side of the inner wall of the collection hopper 3, and a sieve cylinder 5 is placed on the baffle ring 4. The input end of the extraction pipe 17 communicates with the interior of the mixing and disinfection chamber. An extraction pump 18 is installed on the extraction pipe 17, and the output end of the extraction pump 18 is connected to an output pipe 19. The output end of the output pipe 19 enters the left side of the aeration chamber. An ozone generator 20 is installed on the outer left wall of the aeration chamber. The output end of 0 extends into the aeration chamber and is connected to an aeration pipe 21. Multiple aeration heads 22 are connected to the aeration pipe 21. A balance valve is set on the upper left side of the aeration chamber. A water pumping pipe 23 is installed on the outer wall of the right side of the aeration chamber. The input end of the water pumping pipe 23 is connected to the inside of the aeration chamber. The output end of the water pumping pipe 23 is connected to a diversion pipe 24. Multiple drain pipes are set on the diversion pipe 24. The drain pipes are connected to the inside of the filter chamber. Insert strips 31 are installed at both ends of the coarse filter screen 25, fine filter screen 26, adsorption layer 27, polyether film filter layer 28, PP cotton filter layer 29 and activated carbon layer 30. Multiple sealing slots matching the insert strips 31 are opened at both ends of the filter chamber. A sealing plate 32 is installed on the front end of the filter chamber. Two handles 33 are installed at the front end of the sealing plate 32.

[0021] After use, the laboratory wastewater is poured into the collection hopper 3. Large impurities are filtered out by the sieve cylinder 5 before being fed into the mixing and disinfection chamber for easy use. The extraction pump 18 is started to draw the wastewater through the extraction pipe 17, and it is then fed into the aeration chamber through the output pipe 19. The ozone generator 20 is started to input ozone into the aeration pipe 21, which is then discharged into the wastewater through the aeration head 22, thus aerating and sterilizing the wastewater and improving the treatment effect. The water pump 23 is then started to pump the treated wastewater from the aeration chamber. The wastewater is extracted and fed into the filtration chamber through the diversion pipe 24. After treatment, the wastewater passes through the coarse filter 25, the fine filter 26, and the adsorption layer 27 to remove impurities and particles. At the same time, the polyether membrane filter layer 28, the PP cotton filter layer 29, and the activated carbon layer 30 further sterilize the wastewater to ensure the treatment effect. The sealing plate 32 can be removed to pull out the insert strip 31 in the sealing groove, allowing for individual replacement of each filter screen, which is convenient to use and improves practicality.

[0022] Example 2

[0023] like Figures 2 to 4As shown, based on Embodiment 1, it further includes a drive motor 7 installed in the middle of the outer wall of the mixing and disinfection chamber. The output end of the drive motor 7 extends into the mixing and disinfection chamber and is connected to a main shaft 8. The main shaft 8 is rotatably installed inside the mixing and disinfection chamber. A spiral conveying blade 9 is installed on the outer wall of the main shaft 8. A transmission wheel 10 is installed at the right end of the main shaft 8, passing through the right side wall of the mixing and disinfection chamber. Two stirring shafts 11 are symmetrically rotated about the main shaft 8 and installed in the mixing and disinfection chamber. A drive wheel 12 is installed at the right input end of the stirring shaft 11. The transmission wheel 10 is connected to the drive wheel 12 through two transmission belts 13. The outer wall of the stirring shaft 11 is equipped with... Multiple stirring blades 14 are uniformly and fixedly installed. Stirring plates 15 are installed on the stirring blades 14. The front and rear ends of the protective cover 16 are provided with fixing ears. Fixing bolts are screwed on the fixing ears. The protective cover 16 is installed on the right side wall of the processing box 1 outside the transmission wheel 10 and the transmission belt 13 through the fixing bolts. Multiple fixing blocks 34 are respectively installed on the front and rear ends of the left and right outer walls of the processing box 1. Adjusting grooves are opened in the fixing blocks 34. Adjusting blocks 35 are slidably installed in the adjusting grooves. Fixing brackets 36 are fixedly installed on the outer wall of the adjusting blocks 35. Fastening bolts are provided on the adjusting blocks 35. Fixing holes are opened on the fixing brackets 36.

[0024] After the equipment is moved to the operating position, push the adjusting block 35 to slide in the adjusting groove so that the fixing frame 36 contacts the ground. Tighten the fastening bolts to fix the adjusting block 35. The fixing pin can be installed through the fixing hole to ensure the stability of the equipment during use. After the disinfectant is added into the mixing and disinfection chamber through the collection hopper 3, start the drive motor 7 to drive the main shaft 8 to rotate. The main shaft 8 drives the spiral conveyor blade 9 to rotate to push the liquid. When the main shaft 8 rotates, it drives the stirring shaft 11 to rotate through the transmission wheel 10, transmission belt 13 and drive wheel 12. The stirring shaft 11 drives multiple stirring blades 14 and stirring plates 15 to rotate, mixing and stirring the disinfectant and wastewater. The operation is convenient and the disinfection efficiency is good. The protective cover 16 can protect the transmission components to avoid danger and improve safety.

[0025] like Figures 1 to 5As shown, this utility model discloses an integrated wastewater treatment device for biological laboratories. During operation, after the device is moved to the usage position, the adjusting block 35 slides within the adjusting groove, causing the fixing frame 36 to contact the ground. The adjusting block 35 is then fixed by tightening the fastening bolts. The fixing frame 36 is installed by passing the fixing pin through the fixing hole. After use, the laboratory wastewater is poured into the collection hopper 3. Large impurities are filtered through the sieve cylinder 5 before being fed into the mixing and disinfection chamber. After the disinfectant is added to the mixing and disinfection chamber through the collection hopper 3, the drive motor 7 is started, driving the main shaft 8 to rotate. The main shaft 8 drives the spiral conveyor blades 9 to rotate, propelling the liquid. When the main shaft 8 rotates, it drives the stirring shaft 11 to rotate via the transmission wheel 10, transmission belt 13, and drive wheel 12. The stirring shaft 11 drives multiple stirring blades 1... 4. The stirring plate 15 rotates to mix and agitate the disinfectant and wastewater. The transmission components are protected by the protective cover 16. The extraction pump 18 is started to extract the wastewater through the extraction pipe 17 and input it into the aeration chamber through the output pipe 19. The ozone generator 20 is started to input ozone into the aeration pipe 21 and discharge it into the wastewater through the aeration head 22 to aerate and sterilize the wastewater. The water pumping pipe 23 is started to extract the treated wastewater from the aeration chamber and input it into the filtration chamber through the diversion pipe 24. The treated wastewater is filtered through the coarse filter screen 25, the fine filter screen 26 and the adsorption layer 27 to remove impurities and particles. At the same time, the polyether membrane filter layer 28, the PP cotton filter layer 29 and the activated carbon layer 30 further sterilize and filter the wastewater. Finally, it is discharged into the municipal sewage network through the discharge pipe 37.

[0026] The drive motor 7, extraction pump 18, ozone generator 20, water pumping pipe 23, coarse filter screen 25, fine filter screen 26, adsorption layer 27, polyether membrane filter layer 28, PP cotton filter layer 29, and activated carbon layer 30 of the integrated wastewater treatment device for biological laboratories of this utility model are commercially available. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An integrated wastewater treatment device for biological laboratories, characterized in that, The device includes a treatment box (1), multiple casters (2), multiple partitions (6), a discharge pipe (37), a collection primary filter assembly, a mixing assembly, an aeration assembly, a filtration assembly, and a support assembly. The collection primary filter assembly is installed on the top of the treatment box (1), and multiple casters (2) are installed on the bottom of the treatment box (1) to facilitate the movement of the device. Multiple partitions (6) are installed inside the treatment box (1) to divide the interior of the treatment box (1) into a mixing and disinfection chamber, an aeration chamber, and a filtration chamber from top to bottom. The mixing assembly is installed in the mixing and disinfection chamber, the aeration assembly is installed in the aeration chamber, and the filtration assembly is installed in the filtration chamber. A support assembly is installed on the bottom side wall of the treatment box (1), and a discharge pipe (37) is installed on the lower part of the left side wall of the treatment box (1) in communication with the filtration chamber. A valve is installed on the discharge pipe (37).

2. The integrated wastewater treatment device for a biological laboratory as described in claim 1, characterized in that, The primary filter collection assembly includes a collection hopper (3), a baffle ring (4), and a screen cylinder (5). The collection hopper (3) is fixedly connected to the top left end of the processing box (1). The baffle ring (4) is fixedly installed on the upper side of the inner wall of the collection hopper (3), and the screen cylinder (5) is placed on the baffle ring (4).

3. The integrated wastewater treatment device for a biological laboratory as described in claim 1, characterized in that, The mixing assembly includes a drive motor (7), a main shaft (8), a spiral conveyor blade (9), a transmission wheel (10), two stirring shafts (11), two drive wheels (12), two transmission belts (13), multiple sets of stirring blades (14), and multiple sets of stirring plates (15). The drive motor (7) is installed in the middle of the outer wall of the mixing and disinfection chamber. The output end of the drive motor (7) extends into the mixing and disinfection chamber and is connected to the main shaft (8). The main shaft (8) is rotatably installed inside the mixing and disinfection chamber. The spiral conveyor blade (9) is installed on the outer wall of the main shaft (8). The right end of the main shaft (8) passes through the right side wall of the mixing and disinfection chamber and is installed with the transmission wheel (10). The two stirring shafts (11) rotate symmetrically about the main shaft (8) and are installed in the mixing and disinfection chamber. The right input end of the stirring shaft (11) is installed with the drive wheel (12). The transmission wheel (10) is connected to the drive wheel (12) through two transmission belts (13). Multiple stirring blades (14) are evenly fixed on the outer wall of the stirring shaft (11), and stirring plates (15) are installed on the stirring blades (14).

4. The integrated wastewater treatment device for a biological laboratory as described in claim 3, characterized in that, It also includes a protective cover (16), an extraction pipe (17), an extraction pump (18), and an output pipe (19). The protective cover (16) has fixed ears at both ends, and fixed bolts are screwed onto the fixed ears. The protective cover (16) is mounted on the right side wall of the treatment box (1) outside the transmission wheel (10) and the transmission belt (13) through the fixed bolts. The input end of the extraction pipe (17) is connected to the inside of the mixing and disinfection chamber. An extraction pump (18) is installed on the extraction pipe (17). The output end of the extraction pump (18) is connected to the output pipe (19). The output end of the output pipe (19) is input to the left side of the aeration chamber.

5. The integrated wastewater treatment device for a biological laboratory as described in claim 1, characterized in that, The aeration assembly includes an ozone generator (20), an aeration pipe (21), multiple aeration heads (22), a water pumping pipe (23), and a diversion pipe (24). The ozone generator (20) is installed on the outer wall of the left side of the aeration chamber. The output end of the ozone generator (20) extends into the aeration chamber and is connected to the aeration pipe (21). Multiple aeration heads (22) are connected to the aeration pipe (21). A balance valve is provided on the upper left side of the aeration chamber. The water pumping pipe (23) is installed on the outer wall of the right side of the aeration chamber. The input end of the water pumping pipe (23) is connected to the inside of the aeration chamber. The output end of the water pumping pipe (23) is connected to the diversion pipe (24). Multiple drain pipes are provided on the diversion pipe (24). The drain pipes are connected to the inside of the filter chamber.

6. The integrated wastewater treatment device for a biological laboratory as described in claim 1, characterized in that, The filter assembly includes a coarse filter (25), a fine filter (26), an adsorption layer (27), a polyether membrane filter layer (28), a PP cotton filter layer (29), an activated carbon layer (30), multiple insert strips (31), a sealing plate (32), and a handle (33). Insert strips (31) are installed at both the top and bottom of the coarse filter (25), the fine filter (26), the adsorption layer (27), the polyether membrane filter layer (28), the PP cotton filter layer (29), and the activated carbon layer (30). Multiple sealing slots matching the insert strips (31) are opened at both the top and bottom of the filter chamber. The sealing plate (32) is installed on the front end of the filter chamber, and two handles (33) are installed at the front end of the sealing plate (32).

7. The integrated wastewater treatment device for a biological laboratory as described in claim 1, characterized in that, The support assembly includes multiple fixed blocks (34), adjusting blocks (35) and fixing frames (36). The multiple fixed blocks (34) are respectively installed on the front and rear ends of the outer walls on the left and right sides of the processing box (1). The fixed blocks (34) have adjusting grooves inside. The adjusting blocks (35) are slidably installed in the adjusting grooves. The fixing frames (36) are fixedly installed on the outer wall of the adjusting blocks (35). The adjusting blocks (35) are provided with fastening bolts. The fixing frames (36) are provided with fixing holes.

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