Drinking water filter material defluorination discharged waste liquid treatment device

Abstract

The invention relates to the technical field of defluorination discharged waste liquid treatment, and discloses a drinking water filter material defluorination discharged waste liquid treatment device, which comprises a washing wastewater treatment assembly and a waste alkali liquid treatment assembly, the washing wastewater treatment assembly comprises a box body, and the left side of the box body is provided with a water inlet. The washing wastewater treatment assembly and the waste alkali liquor treatment assembly can effectively remove pollutants such as suspended solids, colloids and fluorine ions in waste liquor and reduce the turbidity of the waste liquor to the emission standard, meanwhile, through cooperative work of the magnetic coagulation device and the waste alkali liquor regeneration device, waste alkali liquor is recycled, the recovery rate of alkali is greatly increased, and the cost is reduced. And the waste of resources is reduced. According to the washing wastewater treatment assembly, through the design of the multi-stage coagulating sedimentation reaction area, it is ensured that impurities in waste liquid are effectively removed, and due to the fact that the magnetic coagulation device is added, the density and the sedimentation speed of flocs are increased, recycling of magnetic seeds is achieved, and the operation cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of fluorine removal waste liquid treatment, in particular to a drinking water filter material fluorine removal waste liquid treatment device. Background Art

[0002] In the defluorination treatment of drinking water, DAWT defluorination filter media is a widely used special filter media. However, in the process of using DAWT filter media for defluorination treatment, two types of discharged waste liquids are generated. The first is the waste alkali liquid generated when sodium hydroxide is used as a regeneration agent to regenerate the filter media. This waste liquid contains a high concentration of fluoride. The second is the wastewater used for flushing during the filter media regeneration process. This wastewater contains a large amount of suspended matter and particulate matter, as well as a certain amount of fluoride, causing the fluoride ion concentration to exceed the discharge standard.

[0003] Traditional fluoride removal technologies mainly rely on chemical precipitation methods, such as using aluminum hydroxide or calcium hydroxide as precipitants, but these methods often have problems such as low treatment efficiency, complex operation, high cost, and possible secondary pollution. In addition, for the treatment of high-concentration fluoride-containing wastewater, traditional methods are difficult to achieve efficient and rapid fluoride analysis, and a large amount of chemical agents may be required during the treatment process, increasing treatment costs and environmental burdens.

[0004] Therefore, based on the above technical problems, it is necessary for technicians in this field to develop a drinking water filter material fluoride removal and waste liquid treatment device. Summary of the invention

[0005] The object of the present invention is to provide a drinking water filter material fluoride removal waste liquid treatment device to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A technical solution for a drinking water filter material fluoride removal waste liquid treatment device, comprising a flushing waste water treatment component and a waste alkali liquid treatment component, wherein the flushing waste water treatment component comprises a box body, a water inlet is arranged on the left side of the box body, the water inlet is connected to a primary coagulation and precipitation reaction zone, a secondary coagulation and precipitation reaction zone is arranged adjacent to the primary coagulation and precipitation reaction zone, a tertiary coagulation and precipitation reaction zone is arranged adjacent to the secondary coagulation and precipitation reaction zone, the primary coagulation and precipitation reaction zone is connected to the secondary coagulation and precipitation reaction zone through a primary water hole, the secondary coagulation and precipitation reaction zone is connected to the tertiary coagulation and precipitation reaction zone through a secondary water hole, a collection zone is arranged adjacent to the tertiary coagulation and precipitation reaction zone, and the tertiary coagulation and precipitation reaction zone is connected through a tertiary water hole, and a water outlet is arranged at the bottom of the collection zone;

[0008] A dosing mechanism is arranged at the back of the primary coagulation and sedimentation reaction zone, the secondary coagulation and sedimentation reaction zone and the tertiary coagulation and sedimentation reaction zone. The dosing mechanism comprises a spare medicine box, a PAC dosing box, a magnetic powder recovery device, a magnetic powder dosing box and a PAM dosing box.

[0009] As a preferred technical solution, two groups of backwash water inlets are arranged on the back right side of the box body, and perforated water pipes are connected to the backwash water inlets. Two groups of backwash water outlets are arranged on the front right side of the box body, and filter water outlets are arranged on adjacent sides of the backwash water inlet and backwash water outlet pipes. Water production tank inlets are arranged on adjacent sides of the filter water outlet. An equipment water production port is arranged at the front end of the box body, and a backwash pump interface is arranged on the back.

[0010] As a preferred technical solution, the backwash outlet pipe and the filter outlet are both provided with filter screens, and a water cap plate is provided inside the box.

[0011] As a preferred technical solution, the waste alkali liquid treatment component includes a treatment box, a waste alkali liquid inlet pipe is provided on the treatment box, a waste alkali liquid cavity is provided in the waste alkali liquid inlet pipe, flow holes are provided on the cavity walls on both sides of the waste alkali liquid cavity, a flocculation reaction zone is provided on the adjacent side of the flow hole, a flow pipe is provided at the bottom of the flocculation reaction zone, the flow pipe is connected with a water collection area one, a water collection area two is provided on the adjacent side of the water collection area one, and is connected to the water collection area two through a primary water collection hole, a water collection area three is provided on the adjacent side of the water collection area two, and is connected to the water collection area three through a secondary water collection hole, and a drain outlet is provided on the water collection area three.

[0012] As a preferred technical solution, an inclined tube filler is provided in the flocculation reaction zone, and a backwash port is provided at the bottom of the flocculation reaction zone.

[0013] As a preferred technical solution, the flocculation reaction zone, the water collection zone 1, the water collection zone 2, and the water collection zone 3 are all equipped with stirring motors, and the output end of the stirring motor is connected to a stirrer.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention discloses a drinking water filter material fluoride removal and waste liquid treatment device, which is provided with a flushing wastewater treatment component and a waste alkali liquid treatment component, and can effectively remove pollutants such as suspended matter, colloid, and fluoride ions in the waste liquid, and reduce the turbidity of the waste liquid to a dischargeable standard. At the same time, through the coordinated work of a magnetic coagulation device and a waste alkali liquid regeneration device, the waste alkali liquid is recycled, the alkali recovery rate is greatly improved, and the waste of resources is reduced.

[0016] The flushing wastewater treatment component of the present invention ensures the effective removal of impurities in the waste liquid through the design of a multi-stage coagulation and sedimentation reaction zone, and the addition of a magnetic coagulation device not only increases the density and sedimentation rate of the flocs, but also realizes the recovery and recycling of magnetic seeds, thereby reducing operating costs.

[0017] The waste alkali liquid regeneration device converts the fluoride ions in the waste alkali liquid into CaF2 precipitates through the calcium salt precipitation method, thereby achieving the regeneration of the alkali liquid. The device has a high degree of automation and is easy to operate. It does not require special personnel to manage it, saving labor costs.

[0018] In summary, the present invention not only solves the technical problem of waste liquid treatment, but also achieves dual improvement of environmental protection and economic benefits through the recycling of waste alkali liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of a flushing wastewater treatment component of a drinking water filter material fluoride removal and waste liquid treatment device;

[0020] Figure 2 for Figure 1 AA structural diagram of a drinking water filter material fluoride removal and waste liquid treatment device;

[0021] Figure 3 for Figure 1 A BB structure diagram of a drinking water filter material fluoride removal and waste liquid treatment device;

[0022] Figure 4 for Figure 1 A CC structural diagram of a drinking water filter material fluoride removal and waste liquid treatment device;

[0023] Figure 5 for Figure 1 A DD structural diagram of a drinking water filter material fluoride removal and waste liquid treatment device;

[0024] Figure 6 It is a schematic diagram of the structure of a waste alkali liquid treatment component of a drinking water filter material fluoride removal and waste liquid treatment device;

[0025] Figure 7 for Figure 6 AA structural diagram of a drinking water filter material fluoride removal and waste liquid treatment device;

[0026] Figure 8 for Figure 6 A BB structure diagram of a drinking water filter material fluoride removal and waste liquid treatment device;

[0027] Fig. 9 for Figure 6 A CC structural diagram of a drinking water filter material fluoride removal and waste liquid treatment device;

[0028] Fig.10 for Figure 6 A DD structural diagram of a drinking water filter material fluoride removal and waste liquid treatment device;

[0029] Fig.11 for Figure 6 EE structural diagram of a drinking water filter media fluoride removal and waste liquid treatment device.

[0030] In the accompanying drawings: 1, flushing wastewater treatment component; 101, water inlet; 102, water outlet; 11, primary coagulation and sedimentation reaction zone; 12, secondary coagulation and sedimentation reaction zone; 13, tertiary coagulation and sedimentation reaction zone; 14, primary water hole; 15, secondary water hole; 16, tertiary water hole; 17, collection area; 21, spare medicine box; 22, PAC medicine box; 23, magnetic powder recovery device; 24, magnetic powder medicine box; 25, PAM medicine box; 31, backwash water inlet; 32, perforated water pipe; 33, backwash outlet pipe ; 34. Filter outlet; 35. Water inlet of water production tank; 36. Equipment water outlet; 37. Backwash pump interface; 38. Filter screen; 39. Water cap plate; 4. Waste alkali liquid treatment component; 41. Waste alkali liquid inlet pipe; 42. Flow through hole; 43. Flocculation reaction zone; 44. Circulation pipe; 45. Stirring motor; 46. Agitator; 47. Inclined tube filler; 48. Backwash port; 51. Water collection area one; 52. Primary water collection through hole; 53. Water collection area two; 54. Secondary water collection through hole; 55. Water collection area three; 56. Drainage outlet. DETAILED DESCRIPTION

[0031] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present invention by illustrating examples of the present invention.

[0032] like Figure 1-Figure 7As shown, the present invention provides a technical solution of a drinking water filter material fluoride removal and waste liquid treatment device: comprising a flushing wastewater treatment component 1, the flushing wastewater treatment component 1 comprises a box, a water inlet 101 is arranged on the left side of the box, and the water inlet 101 is connected to a primary coagulation and sedimentation reaction zone 11. A secondary coagulation and sedimentation reaction zone 12 is arranged adjacent to the primary coagulation and sedimentation reaction zone 11, and a tertiary coagulation and sedimentation reaction zone 13 is arranged adjacent to the secondary coagulation and sedimentation reaction zone 12. The primary coagulation and sedimentation reaction zone 11 is connected to the secondary coagulation and sedimentation reaction zone 12 through a primary water hole 14, and the secondary coagulation and sedimentation reaction zone 12 is connected to the tertiary coagulation and sedimentation reaction zone 13 through a secondary water hole 15. A collection zone 17 is arranged adjacent to the tertiary coagulation and sedimentation reaction zone 13, and is connected through a tertiary water hole 16. A water outlet 102 is arranged at the bottom of the collection zone 17.

[0033] A dosing mechanism is arranged at the back of the primary coagulation and sedimentation reaction zone 11, the secondary coagulation and sedimentation reaction zone 12 and the tertiary coagulation and sedimentation reaction zone 13, and the dosing mechanism includes a spare drug box 21, a PAC drug dosing box 22, a magnetic powder recovery device 23, a magnetic powder drug dosing box 24 and a PAM drug dosing box 25. These drug dosing boxes are connected to their respective reaction zones through pipelines to achieve chemical treatment of the waste liquid.

[0034] Two groups of backwash water inlets 31 are arranged on the back right side of the box body, and perforated water pipes 32 are connected to the backwash water inlets 31. Two groups of backwash water outlets 33 are arranged on the front right side of the box body. Filter water outlets 34 are arranged on the adjacent sides of the backwash water inlets 31 and the backwash water outlets 33. Water production tank inlets 35 are arranged on the adjacent sides of the filter water outlets 34. An equipment water production port 36 is arranged at the front end of the box body, and a backwash pump interface 37 is arranged on the back.

[0035] Specifically, the magnetic coagulation device is used to remove suspended matter, colloids and other impurities in the flushing wastewater, reduce the turbidity of the flushing wastewater, and reduce the fluoride ion content to the discharge standard (fluoride ion content is less than 1.5 mg / L) before discharge. The core of magnetic coagulation technology is to add composite magnetic species to the ordinary coagulation and sedimentation process to combine it with the pollutant flocculation to enhance the coagulation and flocculation effect, so that the generated flocs are denser and stronger, thereby achieving the purpose of high-speed sedimentation.

[0036] The magnetic coagulation and sedimentation process can be used as an alternative to traditional coagulation, sedimentation and filtration, mainly removing SS, turbidity and TP, fluoride ions, and COD caused by SS. The residence time of the entire process is very short, so for most pollutants, the probability of reverse dissolution is very small. In addition, the magnetic species and flocculants added to the system have a good adsorption effect on bacteria, viruses, oil and various tiny particles.

[0037] like Figure 6As shown, the waste alkali liquid treatment component 4 includes a treatment box, on which a waste alkali liquid inlet pipe 41 is provided, and a waste alkali liquid cavity is provided in the waste alkali liquid inlet pipe 41. Water flow holes 42 are provided on the cavity walls on both sides of the waste alkali liquid cavity, and a flocculation reaction zone 43 is provided on the adjacent side of the water flow hole 42. A flow pipe 44 is provided at the bottom of the flocculation reaction zone 43, and the flow pipe 44 is connected to the water collection area 1 51. A water collection area 2 53 is provided on the adjacent side of the water collection area 1 51, and is connected to the water collection area 2 53 through a primary water collection hole 52. A water collection area 3 55 is provided on the adjacent side of the water collection area 2 53, and is connected to the water collection area 3 55 through a secondary water collection hole 54. A drain outlet 56 is provided on the water collection area 3 55.

[0038] The flocculation reaction zone is provided with an inclined tube filler 47, and the bottom of the flocculation reaction zone is provided with a backwash port 48. The flocculation reaction zone 43, the water collection zone 1 51, the water collection zone 2 53, and the water collection zone 3 55 are all equipped with a stirring motor 45, and the output end of the stirring motor 45 is connected to a stirrer 46.

[0039] Specifically, the waste alkali solution regeneration device is used to restore the alkali regeneration effect of the waste alkali solution to the maximum extent, and is circulated for the regeneration of DAWT defluorination filter material, thereby greatly improving the alkali reuse rate and reducing the waste of resources.

[0040] The core of the waste alkali liquid regeneration device adopts the calcium salt precipitation method, that is, adding lime to the waste liquid to make fluoride ions and calcium ions generate CaF2 precipitation and remove it, and the alkali is regenerated and recovered. This system integrates the flocculation reaction tank, sedimentation tank, and water collection tank into one facility, and the time control automatically discharges mud. This device has good treatment effect, high alkali liquid recovery rate, low power consumption, small footprint, water saving, electricity saving, and no need for personnel management.

[0041] In practical applications, the external waste liquid is first introduced into the water inlet 101 of the flushing wastewater treatment component 1. The waste liquid flows through the primary, secondary and tertiary coagulation and sedimentation reaction zones 11, 12 and 13 in sequence, where the chemical agents added by the dosing mechanism react with the pollutants in the waste liquid to form flocs that are easy to precipitate. Subsequently, the waste liquid enters the collection area 17, and after precipitation, the clean water is discharged through the water outlet 102, and the sediment is discharged through the mud discharge port at the bottom.

[0042] For the treatment of the waste alkali liquid, the waste alkali liquid enters the waste alkali liquid chamber of the waste alkali liquid treatment component 4 through the waste alkali liquid inlet pipe 41. In the flocculation reaction zone 43, the waste alkali liquid reacts with the added calcium salt to generate CaF2 precipitation, thereby removing fluoride ions. The waste alkali liquid after the flocculation reaction flows into the water collection area 1 51, the water collection area 2 53 and the water collection area 3 55, and through precipitation and filtration, the clean water that finally meets the discharge standard is discharged through the drain outlet 56.

[0043] Through the above-mentioned implementation mode, the drinking water filter material fluoride removal waste liquid treatment device of the present invention can effectively treat the waste liquid generated in the fluoride removal process, realize the purification of the waste liquid and the recycling of resources, and has significant environmental and economic benefits.

[0044] The working principle and use process of the present invention: After assembling the various components of the present solution in sequence, all the working steps can be completed by working in accordance with the above implementation methods in sequence according to actual needs.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0046] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0048] According to the embodiments of the present invention as described above, these embodiments do not describe all the details in detail, nor do they limit the invention to specific embodiments. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can make good use of the present invention and the modified use based on the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drinking water filter material fluoride removal waste liquid treatment device, characterized in that: The invention comprises a flushing wastewater treatment component (1) and a waste alkali solution treatment component (4), wherein the flushing wastewater treatment component (1) comprises a box body, a water inlet (101) is arranged on the left side of the box body, a primary coagulation and sedimentation reaction zone (11) is arranged in communication with the water inlet (101), a secondary coagulation and sedimentation reaction zone (12) is arranged adjacent to the primary coagulation and sedimentation reaction zone (11), and a tertiary coagulation and sedimentation reaction zone (13) is arranged adjacent to the secondary coagulation and sedimentation reaction zone (12). The first coagulation and sedimentation reaction zone (11) is connected to the second coagulation and sedimentation reaction zone (12) through a first water hole (14), the second coagulation and sedimentation reaction zone (12) is connected to the third coagulation and sedimentation reaction zone (13) through a second water hole (15), a collection zone (17) is provided on the adjacent side of the third coagulation and sedimentation reaction zone (13), and is connected through a third water hole (16), and a water outlet (102) is provided at the bottom of the collection zone (17); A drug adding mechanism is arranged at the back of the primary coagulation and sedimentation reaction zone (11), the secondary coagulation and sedimentation reaction zone (12) and the tertiary coagulation and sedimentation reaction zone (13), and the drug adding mechanism comprises a spare drug box (21), a PAC drug adding box (22), a magnetic powder recovery device (23), a magnetic powder drug adding box (24) and a PAM drug adding box (25).

2. A drinking water filter material fluoride removal waste liquid treatment device according to claim 1, characterized in that: Two groups of backwash water inlets (31) are arranged on the back of the right side of the box body, and a perforated water distribution pipe (32) is connected to the backwash water inlet (31). Two groups of backwash water outlet pipes (33) are arranged on the front of the right side of the box body. Filter water outlets (34) are arranged on the adjacent sides of the backwash water inlet (31) and the backwash water outlet pipe (33), and water production tank water inlets (35) are arranged on the adjacent sides of the filter water outlet (34). An equipment water production port (36) is arranged at the front of the box body, and a backwash pump interface (37) is arranged on the back.

3. A drinking water filter material fluoride removal waste liquid treatment device according to claim 1, characterized in that: The backwash water outlet pipe (33) and the filter water outlet (34) are both provided with a filter screen (38), and a water cap plate (39) is provided inside the box.

4. A drinking water filter material fluoride removal waste liquid treatment device according to claim 1, characterized in that: The waste alkali liquid treatment component (4) comprises a treatment box, the treatment box is provided with a waste alkali liquid inlet pipe (41), a waste alkali liquid cavity is provided in the waste alkali liquid inlet pipe (41), flow holes (42) are provided on the cavity walls on both sides of the waste alkali liquid cavity, a flocculation reaction zone (43) is provided on the adjacent side of the flow holes (42), a circulation pipe (44) is provided at the bottom of the flocculation reaction zone (43), the circulation pipe (44) is connected with a water collection area 1 (51), a water collection area 2 (53) is provided on the adjacent side of the water collection area 1 (51), and is connected to the water collection area 2 (53) through a primary water collection hole (52), a water collection area 3 (55) is provided on the adjacent side of the water collection area 2 (53), and is connected to the water collection area 3 (55) through a secondary water collection hole (54), and a drainage outlet (56) is provided on the water collection area 3 (55).

5. A drinking water filter material fluoride removal waste liquid treatment device according to claim 4, characterized in that: An inclined tube filler (47) is arranged in the flocculation reaction zone (43), and a backwash port (48) is arranged at the bottom of the flocculation reaction zone (43).

6. A drinking water filter material fluoride removal waste liquid treatment device according to claim 4, characterized in that: The flocculation reaction zone (43), the water collection zone 1 (51), the water collection zone 2 (53), and the water collection zone 3 (55) are all equipped with a stirring motor (45), and the output end of the stirring motor (45) is connected to a stirrer (46).

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