Tandem type biological pharmacy wastewater flocculation and sedimentation equipment

Abstract

The utility model discloses tandem type biological pharmaceutical wastewater flocculation and sedimentation equipment, and belongs to the technical field of wastewater treatment. Comprising a flocculent precipitation main body, a biomass reaction tower and an ultrafiltration tower which are sequentially connected in series end to end, wherein the flocculent precipitation main body comprises a flocculent precipitation box arranged at the upper end, a solid-liquid separation box arranged at the bottom end of the flocculent precipitation box, and a precipitation filtering assembly arranged between the solid-liquid separation box and the flocculent precipitation box; the biological pharmaceutical wastewater is subjected to flocculent precipitation treatment through the flocculent precipitation main body, various suspended solids, colloidal organic matters, certain heavy metal ions and other harmful pollutants can be removed, and the biological pharmaceutical wastewater is subjected to photocatalytic oxidation treatment through the biomass reaction tower, so that the purification degree of the biological pharmaceutical wastewater is greatly improved; and finally, the wastewater is subjected to ultrafiltration treatment through the ultrafiltration tower, so that the deep purification of the wastewater is further improved, and the effluent is ensured to conform to the strict reuse or discharge standard.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a series-connected biopharmaceutical wastewater flocculation and sedimentation device. Background Technology

[0002] Biopharmaceutical wastewater mainly comes from various types of wastewater generated by biopharmaceutical companies during the production process, such as production process wastewater, auxiliary engineering wastewater, equipment and container cleaning wastewater, laboratory wastewater, and domestic sewage.

[0003] Biopharmaceutical wastewater typically contains high concentrations of organic matter, toxins, pigments, and salts, as well as potential pathogens such as viruses and bacteria. This wastewater is complex in composition, has poor biodegradability, and is difficult to treat. The high concentration and intermittent discharge characteristics of this wastewater place a significant burden on treatment systems, requiring specialized pretreatment and stabilization measures.

[0004] Flocculation and sedimentation is an important step in the treatment of biopharmaceutical wastewater. It involves adding flocculants and agitation to coagulate suspended solids and colloidal organic matter in the wastewater into flocs, which are then separated by sedimentation. This process helps remove large particulate matter from the wastewater, reduces the burden on subsequent treatment processes, and creates more suitable conditions for biological treatment.

[0005] In existing flocculation and sedimentation equipment, the flocculant may be added through a single inlet, lacking a uniform dispersion mechanism, resulting in uneven distribution of the flocculant in the wastewater, which affects the flocculation effect and sedimentation efficiency. Utility Model Content

[0006] To address the aforementioned problems, this utility model discloses a series-connected biopharmaceutical wastewater flocculation and sedimentation device.

[0007] The technical solution of this utility model is: a series biopharmaceutical wastewater flocculation and sedimentation equipment, including a flocculation and sedimentation body, a biomass reaction tower and an ultrafiltration tower connected in series from end to end.

[0008] The flocculation sedimentation body includes a flocculation sedimentation tank at the top, a solid-liquid separation tank at the bottom of the flocculation sedimentation tank, and a sedimentation filtration assembly between the solid-liquid separation tank and the flocculation sedimentation tank.

[0009] The solid-liquid separation tank has a wastewater inlet on its side wall and a hollow stirring rack inside. The upper end of the hollow stirring rack extends to the outside of the solid-liquid separation tank, and a rotary motor is connected to the bottom end of the hollow stirring rack. Multiple addition holes are evenly distributed on the side wall of the hollow stirring rack, and a liquid outlet connected to the biomass reaction tower is provided at the bottom end of the solid-liquid separation tank.

[0010] Furthermore, the flocculation sedimentation tank is provided with a dosing box that is connected to the upper end of the hollow stirring rack, and a cover is hinged to the dosing box.

[0011] Instructions: Add flocculant to the hollow mixing rack through the dosing box to reduce the risk of flocculant overflow during the dosing process, thereby reducing waste. When the equipment is not in use, cover the dosing box with the cover to prevent debris from falling in and affecting the normal use of the hollow mixing rack.

[0012] Furthermore, the sedimentation filtration assembly includes a filter mounting frame located at the bottom of the flocculation sedimentation tank and having a mounting plate at its center; multiple sedimentation filter screens hinged circumferentially to the side wall of the mounting plate and having their upper surface abutting against the bottom of the flocculation sedimentation tank; an electromagnetic chuck located inside the solid-liquid separation tank and at the upper end of each sedimentation filter screen; and a fixed suction plate located on the side wall of the sedimentation filter screen and facing the corresponding electromagnetic chuck. The fixed suction plate is made of metal.

[0013] Instructions: The electromagnetic chuck uses magnetic force to attract and fix the fixed suction plates on the side wall of the corresponding sedimentation filter plate, so that the sedimentation filter plate abuts against the bottom of the flocculation sedimentation tank. After flocculation and sedimentation in the flocculation sedimentation tank, the liquid part of the biopharmaceutical wastewater falls through the sedimentation filter plate into the solid-liquid separation tank, while the solid part is filtered to the upper part of the sedimentation filter plate. The liquid part entering the solid-liquid separation tank is discharged through the outlet. When it is necessary to clean the solid sediment on the sedimentation filter plate, disconnect the power supply of the electromagnetic chuck to separate each fixed suction plate from the corresponding electromagnetic chuck. At this time, each sedimentation filter plate falls downward, and the solid sediment at its upper end is discharged through the outlet.

[0014] Furthermore, the solid-liquid separation tank includes an inner cylinder with the same diameter as the solid-liquid separation tank and concentrically arranged, and an outer cylinder located outside the inner cylinder. An inclined electric telescopic rod is provided on the outer wall of the inner cylinder, corresponding to the lower end position of each sedimentation filter plate. The liquid outlet is located at the bottom end of the inner cylinder, and the slag outlet is provided on the side wall of the outer cylinder.

[0015] Instructions: After flocculation and sedimentation in the flocculation sedimentation tank, the liquid portion of the biopharmaceutical wastewater falls through the sedimentation filter screen into the inner container and is discharged through the outlet. The power to the electromagnetic chucks is then disconnected, separating each fixed suction plate from its corresponding electromagnetic chuck. An electric telescopic rod supports the bottom of the flocculation sedimentation tank. When it is necessary to re-attach the sedimentation filter screens to the bottom of the flocculation sedimentation tank, the electric telescopic rod pushes them upwards, and they are then adsorbed and fixed by the magnetic attraction of the electromagnetic chucks. This solid-liquid separation tank effectively separates liquid and solid flocculated sediments, improving separation efficiency and purity.

[0016] Furthermore, the free end of the electric telescopic rod is provided with a buffer abutment plate.

[0017] Note: When the electric telescopic rod supports the bottom of the fixed suction plate, the buffer abutment plate can reduce the damage to the components caused by hard impact, thus ensuring the service life of the electric telescopic rod and the sedimentation filter plate.

[0018] The beneficial effects of this utility model are:

[0019] This utility model's series-connected biopharmaceutical wastewater flocculation and sedimentation equipment, in use, treats biopharmaceutical wastewater through the flocculation and sedimentation body, removing various suspended solids, colloidal organic matter, and certain heavy metal ions and other harmful pollutants. The biomass reaction tower then performs photocatalytic oxidation treatment on the wastewater, greatly improving its purification level and bringing it closer to reuse or safe discharge standards. Finally, an ultrafiltration tower further refines the deep purification of the wastewater, ensuring that the effluent meets strict reuse or discharge standards. During flocculation and sedimentation, the flocculant is evenly dispersed into the flocculation and sedimentation tank through various addition holes on the hollow stirring rack. A rotating motor drives the hollow stirring rack to rotate and mix the flocculant with the biopharmaceutical wastewater, ensuring uniform distribution of the flocculant throughout the wastewater treatment space and avoiding excessively high or low local concentrations, thereby improving the flocculation effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a top view of the sedimentation and filtration assembly of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the flocculation and sedimentation body of this utility model.

[0023] Among them, 1-flocculation sedimentation body, 10-flocculation sedimentation tank, 100-dosing box, 101-shielding cover, 11-solid-liquid separation tank, 110-sewage inlet, 111-liquid outlet, 112-inner container, 113-outer container, 114-electric telescopic rod, 115-slag outlet, 116-buffered contact plate, 12-sedimentation filter assembly, 120-mounting plate, 121-filter mounting frame, 122-sedimentation filter screen, 123-electromagnetic chuck, 124-fixed suction plate, 13-hollow stirring frame, 130-rotary motor, 131-addition hole, 2-biomass reaction tower, 3-ultrafiltration tower. Detailed Implementation

[0024] Example 1

[0025] like Figure 1 , 2As shown, a series biopharmaceutical wastewater flocculation and sedimentation device includes a flocculation and sedimentation body 1, a biomass reaction tower 2, and an ultrafiltration tower 3 connected in series. The biomass reaction tower 2 and the ultrafiltration tower 3 adopt existing technologies. The biomass reaction tower 2 adopts an existing bubble column bioreactor, and the ultrafiltration tower 3 adopts a Vivaflow 50 Sartorius ultrafiltration unit.

[0026] The flocculation sedimentation body 1 includes a flocculation sedimentation tank 10 at the upper end, a solid-liquid separation tank 11 at the bottom end of the flocculation sedimentation tank 10, and a sedimentation filter assembly 12 between the solid-liquid separation tank 11 and the flocculation sedimentation tank 10.

[0027] The solid-liquid separation tank 11 has a sewage inlet 110 on its side wall. The solid-liquid separation tank 11 has a hollow stirring rack 13 inside. The upper end of the hollow stirring rack 13 extends to the outside of the solid-liquid separation tank 11. The bottom end of the hollow stirring rack 13 is connected to a rotary motor 130. The side wall of the hollow stirring rack 13 is evenly provided with 40 addition holes 131. The bottom end of the solid-liquid separation tank 11 has a liquid outlet 111 connected to the biomass reaction tower 2. The rotary motor 130 adopts existing technology.

[0028] The flocculation sedimentation tank 10 is equipped with a dosing box 100 that is connected to the upper end of the hollow stirring rack 13. A cover 101 is hinged to the dosing box 100. Flocculant is added to the hollow stirring rack 13 through the dosing box 100. The flocculant adopts existing technology, such as polyacrylamide, polyaluminum chloride or polyferric sulfate, to reduce the risk of flocculant overflow during the addition process, thereby reducing waste. When the equipment is not in use, the dosing box 100 is covered by the cover 101 to prevent debris from falling in and affecting the normal use of the hollow stirring rack 13.

[0029] The sedimentation filtration assembly 12 includes a filter mounting frame 121 located at the bottom of the flocculation sedimentation tank 10 with a mounting plate 120 at its center; four sedimentation filter screens 122 hinged circumferentially to the side wall of the mounting plate 120 with their upper surfaces abutting against the bottom of the flocculation sedimentation tank 10; an electromagnetic chuck 123 located inside the solid-liquid separation tank 11 at the upper end of each sedimentation filter screen 122; and a fixed suction plate 124 located on the side wall of the sedimentation filter screen 122 and facing the corresponding electromagnetic chuck 123. The magnetic attraction of the electromagnetic chuck 123 adsorbs and fixes the fixed suction plate 124 on the side wall of the corresponding sedimentation filter screen 122, so that the sedimentation filter screen 122 abuts against the bottom of the flocculation sedimentation tank 10. After flocculation and sedimentation in the flocculation sedimentation tank 10, the liquid part of the biopharmaceutical wastewater falls through the sedimentation filter screens 122 into the solid-liquid separation tank 11, while the solid part is filtered to the upper end of the sedimentation filter screens 122 and then... The liquid portion entering the solid-liquid separation tank 11 can be discharged through the liquid outlet 111. When it is necessary to clean the solid sediment on the sedimentation filter plate 122, the power supply of the electromagnetic chuck 123 is disconnected, causing each fixed suction plate 124 to separate from the corresponding electromagnetic chuck 123. At this time, each sedimentation filter plate 122 falls downward, and the solid sediment at its upper end is discharged through the liquid outlet 111. The sedimentation filter plate 122 has a mesh structure, and the mesh size of this mesh structure can be between 20-90μm. The electromagnetic chuck 123 adopts existing technology, such as the MDP-FS200L electromagnetic chuck. This electromagnetic chuck is based on the law of electromagnetic induction, and generates or eliminates the magnetic field by changing the direction and magnitude of the current passing through the internal electromagnet, thereby achieving the adsorption or release of the fixed suction plate 124. The fixed suction plate 124 is made of metal, such as iron or copper.

[0030] The solid-liquid separation tank 11 includes an inner cylinder 112 with the same diameter as the solid-liquid separation tank 11 and concentrically arranged, and an outer cylinder 113 located outside the inner cylinder 112. An inclined electric telescopic rod 114 is provided on the outer wall of the inner cylinder 112, corresponding to the lower end of each sedimentation filter plate 122. A liquid outlet 111 is located at the bottom end of the inner cylinder 112, and a slag outlet 115 is provided on the side wall of the outer cylinder 113. After flocculation and sedimentation in the flocculation sedimentation tank 10, the liquid portion of the biopharmaceutical wastewater falls through the sedimentation filter plates 122 into the inner cylinder 112 and exits through the liquid outlet. Discharge 111 and disconnect the power supply of electromagnetic chuck 123, so that each fixed suction plate 124 is separated from the corresponding electromagnetic chuck 123. The bottom end is supported by electric telescopic rod 114. When it is necessary to re-abut each sedimentation filter plate 122 against the bottom end of the flocculation sedimentation box 10, it is lifted upward by electric telescopic rod 114 and adsorbed and fixed under the magnetic attraction of electromagnetic chuck 123. This solid-liquid separation box 11 can effectively separate liquid and solid flocculated sediment, improving separation efficiency and purity. Among them, electric telescopic rod 114 adopts existing technology.

[0031] The free end of the electric telescopic rod 114 is provided with a buffer abutment plate 116. When the electric telescopic rod 114 supports the bottom end of the fixed suction plate 124, the buffer abutment plate 116 can reduce the damage to the components caused by hard collisions and ensure the service life of the electric telescopic rod 114 and the sedimentation filter plate 122.

[0032] The method of using a series-connected biopharmaceutical wastewater flocculation and sedimentation device according to this embodiment includes the following steps:

[0033] S1. The biopharmaceutical wastewater to be treated enters the flocculation sedimentation tank 10 through the sewage inlet 110. At the same time, flocculant is added to the hollow stirring rack 13 through the dosing box 100, and the flocculant is evenly dispersed into the flocculation sedimentation tank 10 through each dosing hole 131. The hollow stirring rack 13 is rotated and stirred by the rotary motor 130, so that the flocculant and the biopharmaceutical wastewater to be treated are stirred and mixed evenly.

[0034] S2. After the flocculation and sedimentation treatment in step S1, the liquid part falls through the sedimentation filter plate 122 into the inner cylinder 112 and is discharged through the outlet 111. It then flows into the biomass reaction tower 2 for photocatalytic oxidation treatment. After that, it is passed into the ultrafiltration tower 3 for filtration treatment and finally discharged. The solid part after flocculation and sedimentation treatment is filtered to the upper end of the sedimentation filter plate 122.

[0035] S3. When it is necessary to clean the solid parts on the sedimentation filter screen 122, disconnect the power supply of the electromagnetic chuck 123, so that each fixed suction plate 124 is separated from the corresponding electromagnetic chuck 123, and the bottom end is supported by the electric telescopic rod 114. At this time, the solid parts fall into the outer cylinder 113 through the tilted sedimentation filter screen 122, and finally, are discharged and cleaned through the slag outlet 115. When it is necessary to re-attach each sedimentation filter screen 122 to the bottom end of the flocculation sedimentation tank 10, push it upward with the electric telescopic rod 114, and be adsorbed and fixed under the magnetic attraction of the electromagnetic chuck 123.

Claims

1. A series-connected biopharmaceutical wastewater flocculation and sedimentation device, characterized in that, It includes a flocculation sedimentation body (1), a biomass reaction tower (2), and an ultrafiltration tower (3) connected in series from end to end; The flocculation sedimentation body (1) includes a flocculation sedimentation tank (10) at the upper end, a solid-liquid separation tank (11) at the bottom end of the flocculation sedimentation tank (10), and a sedimentation filter assembly (12) between the solid-liquid separation tank (11) and the flocculation sedimentation tank (10). The solid-liquid separation tank (11) has a sewage inlet (110) on its side wall. The solid-liquid separation tank (11) is equipped with a hollow stirring rack (13). The upper end of the hollow stirring rack (13) extends to the outside of the solid-liquid separation tank (11). The bottom end of the hollow stirring rack (13) is connected to a rotary motor (130). The side wall of the hollow stirring rack (13) is evenly provided with multiple addition holes (131). The bottom end of the solid-liquid separation tank (11) is provided with a liquid outlet (111) connected to the biomass reaction tower (2).

2. The series-connected biopharmaceutical wastewater flocculation and sedimentation equipment according to claim 1, characterized in that, The flocculation sedimentation tank (10) is provided with a dosing box (100) that is connected to the upper end of the hollow stirring rack (13), and a cover (101) is hinged to the dosing box (100).

3. The series-connected biopharmaceutical wastewater flocculation and sedimentation equipment according to claim 1, characterized in that, The sedimentation filtration assembly (12) includes a filter mounting frame (121) located at the bottom of the flocculation sedimentation tank (10) and having a mounting plate (120) at its center; a plurality of sedimentation filter screens (122) hinged circumferentially to the side wall of the mounting plate (120) and having their upper surface abutting against the bottom of the flocculation sedimentation tank (10); an electromagnetic chuck (123) located inside the solid-liquid separation tank (11) and at the upper end of each sedimentation filter screen (122); and a fixed suction plate (124) located on the side wall of the sedimentation filter screen (122) and facing the corresponding electromagnetic chuck (123). The fixed suction plate (124) is made of metal.

4. The series-connected biopharmaceutical wastewater flocculation and sedimentation equipment according to claim 3, characterized in that, The solid-liquid separation tank (11) includes an inner cylinder (112) with the same diameter as the solid-liquid separation tank (11) and concentrically arranged, and an outer cylinder (113) located outside the inner cylinder (112). An inclined electric telescopic rod (114) is provided on the outer wall of the inner cylinder (112) and at the lower end position corresponding to each sedimentation filter plate (122). The liquid outlet (111) is located at the bottom end of the inner cylinder (112), and the slag outlet (115) is provided on the side wall of the outer cylinder (113).

5. A series-type biopharmaceutical wastewater flocculation and sedimentation device according to claim 4, characterized in that, The free end of the electric telescopic rod (114) is provided with a buffer abutment plate (116).

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