Milk powder production and processing wastewater discharge treatment tank

Abstract

The utility model provides a milk powder production and processing wastewater discharge treatment pond. The milk powder production and processing wastewater discharge treatment pond comprises a sedimentation pond, a booster pump and an ultrafiltration device, wherein an input pipe is arranged at one end of the sedimentation tank, an output pipe is arranged at the other end of the sedimentation tank, and wastewater is input from the input pipe, settled and output from the output pipe; the input end of the ultrafiltration device is connected with the output pipe of the sedimentation tank, and the ultrafiltration device is used for removing organic matters in the wastewater; the booster pump is arranged on the output pipe and is used for increasing the pressure of the wastewater entering the ultrafiltration device. According to the milk powder production and processing wastewater discharge treatment pond provided by the invention, the wastewater entering the ultrafiltration device is subjected to precipitation treatment, so that large-particle impurities in the wastewater are removed in advance, the situation that the large-particle impurities enter the ultrafiltration device to block a filter membrane is avoided, the ultrafiltration efficiency is further improved, and organic pollutants in the wastewater are efficiently removed.

Description

Technical Field

[0001] The utility model relates to the field of wastewater treatment, in particular to a wastewater discharge treatment pool for milk powder production and processing. Background Art

[0002] The milk powder production process easily generates a large amount of wastewater. This wastewater primarily comes from equipment processing, container and pipeline cleaning in the production workshop, which produces high-concentration wastewater, as well as lower-concentration wastewater from production workshop and site cleaning. This wastewater contains high concentrations of organic pollutants, primarily nutrients such as proteins, fats, and carbohydrates. However, existing wastewater treatment tanks are limited in their functionality and are unable to effectively remove organic pollutants from wastewater, resulting in excessive levels of organic pollutants in treated wastewater. Utility Model Content

[0003] The purpose of the utility model is to provide a wastewater treatment pool for milk powder production and processing, so as to solve the technical problem that traditional treatment pools cannot efficiently remove organic pollutants in wastewater.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a milk powder production and processing wastewater discharge treatment pool, the milk powder production and processing wastewater discharge treatment pool comprising:

[0005] A sedimentation tank, wherein an input pipe is provided at one end of the sedimentation tank and an output pipe is provided at the other end of the sedimentation tank, and wastewater is input from the input pipe and discharged from the output pipe after sedimentation;

[0006] An ultrafiltration device, wherein the input end of the ultrafiltration device is connected to the output pipe of the sedimentation tank, and the ultrafiltration device is used to remove organic matter in the wastewater;

[0007] A booster pump is provided on the output pipe and is used to increase the pressure of the wastewater entering the ultrafiltration device.

[0008] In one embodiment, a baffle is provided in the middle of the sedimentation tank, the top of the baffle is higher than the normal water level line of the sedimentation tank, and a communication channel exists between the bottom of the baffle and the bottom of the sedimentation tank.

[0009] In one embodiment, a filter screen is provided at one end of the output pipe close to the interior of the sedimentation tank.

[0010] In one embodiment, the ultrafiltration device comprises:

[0011] The shell is a hollow cylindrical structure, one side of the top of the shell is connected to the output pipe, and the bottom of the shell is provided with a water outlet;

[0012] A primary membrane, wherein the primary membrane has a cylindrical structure, and the upper and lower ends of the primary membrane are both connected to the inner wall of the shell;

[0013] A secondary membrane, wherein the secondary membrane has a cylindrical structure, and the upper and lower ends of the secondary membrane are both connected to the inner wall of the shell, the secondary membrane is located inside the primary membrane, and the pore size of the secondary membrane is smaller than the pore size of the primary membrane;

[0014] The tertiary membrane has a cylindrical structure, and the upper and lower ends of the tertiary membrane are connected to the inner wall of the shell. The tertiary membrane is located inside the secondary membrane. The pore size of the tertiary membrane is smaller than that of the secondary membrane. The water outlet is connected to the internal space of the tertiary membrane.

[0015] In one embodiment, the primary membrane, the secondary membrane, the tertiary membrane and the housing are all coaxially arranged.

[0016] In one embodiment, the boost pump is an inertial pulse pump.

[0017] One or more of the above technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:

[0018] The milk powder production and processing wastewater discharge treatment pool provided by the embodiment of the present invention treats wastewater by first passing the wastewater into a sedimentation tank, and utilizing the sedimentation effect of the sedimentation tank to precipitate large particles of impurities in the wastewater, so as to facilitate further treatment of the wastewater by the subsequent ultrafiltration device. After the wastewater is precipitated, it is output through an output pipe and input into the ultrafiltration device under the pressure of a booster pump, and the organic pollutants in the wastewater are removed by membrane filtration in the ultrafiltration device. Since the wastewater entering the ultrafiltration device has undergone precipitation treatment, large particles of impurities in the wastewater are removed in advance, which prevents large particles of impurities from entering the ultrafiltration device and blocking the filter membrane, thereby improving the ultrafiltration efficiency and achieving efficient removal of organic pollutants in the wastewater.

[0019] And because the wastewater generated in milk powder production and processing is intermittent and periodic (equipment processing, container and pipeline cleaning are periodic), the sedimentation tank can also collect the wastewater so that the booster pump can continuously transport the wastewater to the ultrafiltration device for ultrafiltration treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1A schematic diagram of the structure of a milk powder production and processing wastewater treatment pool provided by an embodiment of the present invention;

[0022] Figure 2 This is a schematic structural diagram of an ultrafiltration device provided in an embodiment of the present invention.

[0023] The reference numerals are as follows:

[0024] 1. Sedimentation tank; 2. Ultrafiltration device; 3. Booster pump; 11. Inlet pipe; 12. Outlet pipe; 13. Filter screen; 14. Baffle; 21. Housing; 22. Primary membrane; 23. Secondary membrane; 24. Tertiary membrane; 211. Water outlet. DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0028] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0029] See also Figures 1 to 2The present embodiment provides a wastewater treatment tank for milk powder production and processing, comprising a sedimentation tank 1, a booster pump 3 (specifically, the booster pump 3 can be an inertial pulse pump), and an ultrafiltration device 2. Sedimentation tank 1 has an inlet pipe 11 at one end and an outlet pipe 12 at the other end. Wastewater is input through inlet pipe 11, precipitated, and then output through outlet pipe 12. The input end of ultrafiltration device 2 is connected to outlet pipe 12 of sedimentation tank 1, and ultrafiltration device 2 is used to remove organic matter from the wastewater. Booster pump 3 is provided on outlet pipe 12, and is used to increase the pressure of wastewater entering ultrafiltration device 2.

[0030] The milk powder production and processing wastewater discharge treatment pool provided by the present invention treats wastewater by first passing the wastewater into a sedimentation tank 1, and utilizing the sedimentation effect of the sedimentation tank 1 to precipitate large particles of impurities in the wastewater, so as to facilitate further treatment of the wastewater by the subsequent ultrafiltration device 2. After the wastewater is precipitated, it is output through the output pipe 12 and input into the ultrafiltration device 2 under the pressure boosting action of the booster pump 3, and the organic pollutants in the wastewater are removed by membrane filtration in the ultrafiltration device 2. Since the wastewater entering the ultrafiltration device 2 has undergone precipitation treatment, large particles of impurities in the wastewater are removed in advance, which prevents large particles of impurities from entering the ultrafiltration device 2 and clogging the filter membrane, thereby improving the ultrafiltration efficiency and achieving efficient removal of organic pollutants in the wastewater.

[0031] In one embodiment, a baffle 14 is provided in the middle of the sedimentation tank 1. The top of the baffle 14 is higher than the normal water level of the sedimentation tank 1, and a flow channel is formed between the bottom of the baffle 14 and the bottom of the sedimentation tank 1. The baffle 14 can block debris floating on the surface of the wastewater to the left side of the baffle 14, preventing the floating debris from entering the ultrafiltration device 2 through the output pipe 12.

[0032] In one embodiment, a filter screen 13 is provided at one end of the output pipe 12 close to the interior of the sedimentation tank 1. By providing the filter screen 13, the wastewater entering the ultrafiltration device 2 is further filtered and treated, thereby improving the water quality of the wastewater entering the ultrafiltration device 2, so that the ultrafiltration device 2 can process the wastewater.

[0033] In one embodiment, the ultrafiltration device 2 includes a shell 21, a primary membrane 22, a secondary membrane 23, and a tertiary membrane 24. The shell 21 has a hollow cylindrical structure, one side of the top of the shell 21 is connected to the output pipe 12, and a water outlet 211 is provided at the bottom of the shell 21; the primary membrane 22 has a cylindrical structure, and the upper and lower ends of the primary membrane 22 are both connected to the inner wall of the shell 21; the secondary membrane 23 has a cylindrical structure, and the upper and lower ends of the secondary membrane 23 are both connected to the inner wall of the shell 21, the secondary membrane 23 is located inside the primary membrane 22, and the pore size of the secondary membrane 23 is smaller than that of the primary membrane 22; the tertiary membrane 24 has a cylindrical structure, and the upper and lower ends of the tertiary membrane 24 are both connected to the inner wall of the shell 21, the tertiary membrane 24 is located inside the secondary membrane 23, the pore size of the tertiary membrane 24 is smaller than that of the secondary membrane 23, and the water outlet 211 is connected to the internal space of the tertiary membrane 24.

[0034] By setting up multiple levels of filter membranes with gradually smaller pore sizes, a stepped filtration method is achieved to remove organic pollutants in wastewater (i.e., the outermost primary membrane 22 filters out organic pollutants with larger particles, the middle secondary membrane 23 filters out organic pollutants with smaller particles, and the innermost tertiary membrane 24 filters out the remaining small particles of organic pollutants). The stepped removal of organic pollutants can effectively reduce the concentration polarization phenomenon on both sides of each membrane layer, thereby ensuring the water permeability of each membrane layer, thereby improving the filtration efficiency and achieving the purpose of efficiently removing organic pollutants in wastewater.

[0035] Optionally, in order to reduce the volume of the ultrafiltration device 2 and save space occupied by wastewater treatment, the primary membrane 22, the secondary membrane 23, the tertiary membrane 24 and the housing 21 are all coaxially arranged.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A milk powder production and processing wastewater discharge treatment pool, characterized in that: The milk powder production and processing wastewater discharge treatment pool includes: A sedimentation tank, wherein an input pipe is provided at one end of the sedimentation tank and an output pipe is provided at the other end of the sedimentation tank, and wastewater is input from the input pipe and discharged from the output pipe after sedimentation; An ultrafiltration device, wherein the input end of the ultrafiltration device is connected to the output pipe of the sedimentation tank, and the ultrafiltration device is used to remove organic matter in the wastewater; A booster pump, the booster pump being arranged on the output pipe and being used to increase the pressure of the wastewater entering the ultrafiltration device; The ultrafiltration device comprises: The shell is a hollow cylindrical structure, one side of the top of the shell is connected to the output pipe, and the bottom of the shell is provided with a water outlet; A primary membrane, wherein the primary membrane has a cylindrical structure, and the upper and lower ends of the primary membrane are both connected to the inner wall of the shell; A secondary membrane, wherein the secondary membrane has a cylindrical structure, and the upper and lower ends of the secondary membrane are both connected to the inner wall of the shell, the secondary membrane is located inside the primary membrane, and the pore size of the secondary membrane is smaller than the pore size of the primary membrane; The tertiary membrane has a cylindrical structure, and the upper and lower ends of the tertiary membrane are connected to the inner wall of the shell. The tertiary membrane is located inside the secondary membrane. The pore size of the tertiary membrane is smaller than that of the secondary membrane. The water outlet is connected to the internal space of the tertiary membrane.

2. A milk powder production and processing wastewater discharge treatment pool according to claim 1, characterized in that: A baffle is provided in the middle of the sedimentation tank, the top of the baffle is higher than the normal water level line of the sedimentation tank, and a flow channel exists between the bottom of the baffle and the bottom of the sedimentation tank.

3. The milk powder production and processing wastewater discharge treatment pool according to claim 1, characterized in that: A filter screen is provided at one end of the output pipe close to the interior of the sedimentation tank.

4. The milk powder production and processing wastewater discharge treatment pool according to claim 1, characterized in that: The primary membrane, the secondary membrane, the tertiary membrane and the housing are all coaxially arranged.

5. The milk powder production and processing wastewater discharge treatment pool according to claim 1, characterized in that: The booster pump adopts an inertial pulse pump.

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