A medical waste leachate pre-treatment system

Abstract

The utility model discloses a medical waste leaching liquid pretreatment system, including leaching liquid collection pool, primary secondary filter pool and secondary filter pool, and leaching liquid collection pool promotes leaching liquid output through pump delivery pipeline, and the output end of pump delivery pipeline is linked with leaching liquid discharge pipe intercommunication, and primary secondary filter pool is located below leaching liquid discharge pipe and sets up. The utility model discloses through setting leaching liquid collection pool, primary secondary filter pool and secondary filter pool to leaching liquid pretreatment, and the pretreatment pool of primary secondary filter pool has filter conveyor, and sets up the liquid discharge pipe in the middle part, and first filters and then deposits, and through primary secondary filter pool, the solid of containing in leaching liquid is filtered out preliminarily, and secondary filter pool has filter membrane subassembly, and through secondary filter pool, the residual sludge and colloidal substance of containing in leaching liquid are filtered out again, and the system is large and efficient in treatment capacity, and effectively reduces the load of rear-end system.

Description

Technical Field

[0001] This utility model relates to the field of medical waste treatment technology, specifically a medical waste leachate pretreatment system. Background Technology

[0002] Medical waste, also known as medical garbage, is waste generated by medical and health institutions during medical treatment, prevention, health care, and other related activities. It includes infectious waste, sharps waste, pathological waste, pharmaceutical waste, and chemical waste. During treatment, scattered medical waste is collected in a centralized manner, classified and collected in a timely manner according to the category of medical waste, packaged in special packaging bags and sharps boxes, and then incinerated or treated by other physical, chemical, or biological methods to achieve the purpose of harmlessness.

[0003] During the collection, transportation, and treatment of medical waste, a certain amount of leachate is generated. Medical waste leachate is a complex, high-concentration wastewater; direct discharge would cause serious environmental pollution. Therefore, leachate treatment is essential. The treatment process for medical waste leachate can be broadly divided into pretreatment, biological treatment, advanced treatment, and post-treatment, requiring multiple steps to achieve the required standards. Pretreatment, which filters out most solid impurities, reduces the burden on subsequent processes. Therefore, to reduce the load on the downstream system, our company has designed and provided a novel medical waste leachate pretreatment system. Utility Model Content

[0004] The purpose of this invention is to provide a medical waste leachate pretreatment system, which filters out most of the solid impurities during leachate pretreatment to reduce the pressure on subsequent processes.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a medical waste leachate pretreatment system, comprising a leachate collection tank, a primary and secondary filtration tank, and a secondary filtration tank. The leachate collection tank is equipped with a pump delivery pipeline to boost the output of the leachate. The output end of the pump delivery pipeline is connected to the leachate discharge pipe. The primary and secondary filtration tanks are located below the leachate discharge pipe. The primary and secondary filtration tanks are longitudinally arranged with a partition, which divides the primary and secondary filtration tanks into a pretreatment tank and a pretreatment tank. An overflow port is provided above the partition to connect the pretreatment tank and the pretreatment tank. The leachate discharge pipe is located above the pretreatment tank. A filter conveyor is installed in the pretreatment tank 1 at the height of the overflow port. The filter conveyor rotates and conveys to the overflow port side. A waste discharge pipe 1 is installed at the bottom of the pretreatment tank 2. A waste discharge pipe 2 is installed at the bottom of the pretreatment tank 1. A drain pipe is installed in the middle of the pretreatment tank 1 to connect to the secondary filter tank. The secondary filtration tank is provided with filter membrane assemblies arranged sequentially along the liquid flow direction, and a stirring blade agitator is provided at the top of the secondary filtration tank. The stirring blades of the stirring blade agitator extend downward to below the liquid surface between adjacent filter membrane assemblies. The bottom of the secondary filtration tank is provided with a filtrate discharge pipe and a multi-stage filter residue discharge pipe.

[0006] Preferably, the bottom of the leachate discharge pipe is provided with a row of equally spaced discharge ports.

[0007] Preferably, the conveyor belt of the filter conveyor is a filter mesh belt.

[0008] Preferably, a second partition is provided in the pretreatment tank on the side of the filter conveyor away from the overflow port. The second partition is an inverted L-shaped component, which extends downward to the bottom of the filter conveyor on the side of the filter conveyor away from the overflow port.

[0009] Preferably, the mesh size of the filter membrane assemblies arranged sequentially along the liquid flow direction in the secondary filtration tank decreases.

[0010] This utility model has the following beneficial effects: This invention pre-treats the leachate by setting up a leachate collection tank, a primary and secondary filtration tank, and a secondary filtration tank. The primary and secondary filtration tanks are equipped with a filter conveyor and a drain pipe in the middle. The leachate is filtered first and then settled. The primary and secondary filtration tanks initially filter out the solids contained in the leachate. The secondary filtration tank has a filter membrane assembly, which further filters out the residual sludge and colloidal substances contained in the leachate. This system has a large processing capacity and high efficiency, effectively reducing the load on the downstream system. Attached Figure Description

[0011] Figure 1 This is a three-dimensional perspective view of the overall structure of this utility model; Figure 2 This is a front view of the internal structure of this utility model.

[0012] In the diagram: 1. Leachate collection tank; 2. Primary and secondary filtration tanks; 21. Baffle 1; 22. Pretreatment tank 1; 23. Pretreatment tank 2; 24. Overflow outlet; 25. Filtration conveyor; 26. Waste discharge pipe 2; 27. Drainage pipe; 28. Baffle 2; 29. ​​Waste discharge pipe 1; 3. Secondary filtration tank; 31. Filtration membrane module; 32. Agitator blade; 33. Filtration discharge pipe; 34. Filter residue discharge pipe; 4. Pump delivery pipeline; 5. Leachate discharge pipe; 51. Discharge port. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] like Figure 1-2 As shown, this utility model provides a technical solution: a medical waste leachate pretreatment system, including a leachate collection tank 1, a primary and secondary filtration tank 2 and a secondary filtration tank 3. The leachate collection tank 1 is equipped with a pump delivery pipeline 4 to lift the leachate output. The output end of the pump delivery pipeline 4 is connected to the leachate discharge pipe 5. The primary and secondary filtration tanks 2 are located below the leachate discharge pipe 5. The bottom of the leachate discharge pipe 5 is provided with a row of equally spaced discharge ports 51. A partition 21 is longitudinally arranged in the primary and secondary filter tanks 2, and the primary and secondary filter tanks 2 are divided into a pretreatment tank 22 and a pretreatment tank 23 by the partition 21. An overflow port 24 is provided above the partition 21 to connect the pretreatment tank 22 and the pretreatment tank 23. The leachate discharge pipe 5 is located above the pretreatment tank 22. A filter conveyor 25 is provided in the pretreatment tank 22 at the height corresponding to the overflow port 24. The conveyor belt of the filter conveyor 25 is a filter mesh belt. The filter conveyor 25 rotates and conveys towards the overflow port 24. A second partition 28 is installed in the pretreatment tank 22 on the side of the filter conveyor 25 away from the overflow port 24. The second partition 28 is an inverted L-shaped component. The second partition 28 extends downward to the bottom of the filter conveyor 25 on the side of the filter conveyor 25 away from the overflow port 24. A first waste discharge pipe 29 is installed at the bottom of the pretreatment tank 23, and a second waste discharge pipe 26 is installed at the bottom of the pretreatment tank 22. A row of drain pipes 27 is installed in the middle of the pretreatment tank 22 to connect to the secondary filter tank 3. The second partition 28 isolates a large amount of sediment from the drain pipes 27 to prevent the sediment from contaminating the drain pipes 27. In the secondary filtration tank 3, filter membrane modules 31 are arranged sequentially along the liquid flow direction. The mesh size of the filter membrane modules 31 arranged sequentially along the liquid flow direction in the secondary filtration tank 3 decreases. A stirring blade agitator 32 is provided at the top of the secondary filtration tank 3. The stirring blades of the stirring blade agitator 32 extend downward to below the liquid surface between two adjacent filter membrane modules 31. The operation of the stirring blade agitator 32 prevents the filter membrane modules 31 from clogging during operation and facilitates the transport and flow channels. The filter membrane modules 31 require regular maintenance and cleaning. A filtrate discharge pipe 33 and a multi-stage filter residue discharge pipe 34 are provided at the bottom of the secondary filtration tank 3.

[0015] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0016] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A medical waste leachate pretreatment system, characterized in that: It includes a leachate collection tank (1), a primary and secondary filter tank (2) and a secondary filter tank (3). The leachate collection tank (1) lifts the leachate output through a pump delivery pipeline (4). The output end of the pump delivery pipeline (4) is connected to the leachate discharge pipe (5). The primary and secondary filter tanks (2) are located below the leachate discharge pipe (5). The primary and secondary filtration tanks (2) are longitudinally arranged with a partition (21), and the primary and secondary filtration tanks (2) are divided into a pretreatment tank (22) and a pretreatment tank (23) by the partition (21). An overflow port (24) is provided above the partition (21) to connect the pretreatment tank (22) and the pretreatment tank (23). The leachate discharge pipe (5) is located above the pretreatment tank (22). A filter conveyor (25) is installed in the pretreatment tank (22) at the height of the overflow port (24). The filter conveyor (25) rotates and conveys to the overflow port (24). A waste discharge pipe (29) is installed at the bottom of the pretreatment tank (23). A waste discharge pipe (26) is installed at the bottom of the pretreatment tank (22). A drain pipe (27) is installed in the middle of the pretreatment tank (22) to connect to the secondary filter tank (3). The secondary filtration tank (3) is provided with filter membrane components (31) arranged sequentially along the liquid flow direction. A stirring blade stirring device (32) is provided at the top of the secondary filtration tank (3). The stirring blade of the stirring blade stirring device (32) extends downward to below the liquid surface between two adjacent filter membrane components (31). A filtrate discharge pipe (33) and a multi-stage filter residue discharge pipe (34) are provided at the bottom of the secondary filtration tank (3).

2. The medical waste leachate pretreatment system according to claim 1, characterized in that: The bottom of the leachate discharge pipe (5) is provided with a row of equally spaced discharge ports (51).

3. The medical waste leachate pretreatment system according to claim 1, characterized in that: The conveyor belt of the filter conveyor (25) is a filter mesh belt.

4. The medical waste leachate pretreatment system according to claim 1, characterized in that: In the pretreatment tank (22), a partition (28) is provided on the side of the filter conveyor (25) away from the overflow port (24). The partition (28) is an inverted L-shaped component. The partition (28) extends downward to below the filter conveyor (25) on the side of the filter conveyor (25) away from the overflow port (24).

5. The medical waste leachate pretreatment system according to claim 1, characterized in that: The mesh size of the filter membrane components (31) arranged sequentially along the liquid flow direction in the secondary filter tank (3) decreases.

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