MBR (Membrane Bioreactor) integrated equipment for medical wastewater

Abstract

The utility model provides MBR (membrane bioreactor) integrated equipment for medical wastewater, which comprises an equipment shell, and a septic tank, an adjusting tank, a biochemical unit, a disinfection tank, a dechlorination tank and an equipment room are arranged in the equipment shell; the equipment room comprises a water production assembly, a fan, a disinfection device and a dechlorination device, the water production assembly is connected with the MBR membrane of the biochemical unit and the disinfection device of the equipment room through pipelines, the aeration assembly and the MBR membrane assembly in the biochemical unit are connected with the fan through pipelines, the disinfection tank is connected with the disinfection device through a pipeline, and the dechlorination tank is further connected with the dechlorination device through a pipeline; the equipment shell is of a box type structure; the water producing assembly comprises four pipelines, electromagnetic valves and an MBR membrane water producing pump, the pipelines are divided into four quadrangles, each side is provided with one electromagnetic valve, the pipelines are connected diagonally to be communicated with the biochemical unit and the disinfection tank, and the upper and lower sides are connected with the pipelines to be communicated with the MBR membrane water producing pump; the equipment is high in integration degree, simple and convenient to install, compact in structure and small in occupied area.

Description

Technical Field

[0001] The utility model belongs to the technical field of wastewater treatment equipment, in particular to an MBR integrated equipment for medical wastewater. Background Art

[0002] In the fields of sewage treatment and water resource reuse, MBR, also known as membrane bioreactor, is a novel water treatment technology that combines a membrane separation unit with a biological treatment unit. Medical wastewater from hospitals contains a large number of pathogenic bacteria, viruses, and chemicals, requiring specialized treatment processes. With the development of MBR technology, its application in medical wastewater treatment has achieved excellent purification results.

[0003] A Chinese patent, publication number CN219950679U, discloses an organic membrane bioreactor for treating medical wastewater. This reactor utilizes an MBR membrane bioreactor to treat medical wastewater, integrating various components into a single enclosure. However, the disinfection and dechlorination equipment are not integrated into the device. Construction requires a dedicated room to house the disinfection equipment and other components, as well as interconnecting piping. This equipment is not compact, occupies a large area, and is complex to install, making it inconvenient to construct. Utility Model Content

[0004] To address the above issues, the present invention provides an integrated MBR system for medical wastewater treatment, comprising an equipment housing housing a septic tank, a regulating tank, a biochemical unit, a disinfection tank, a dechlorination tank, and an equipment room. The equipment room comprises a water production assembly, a fan, a disinfection device, and a dechlorination device. The water production assembly is connected to the biochemical unit and the disinfection tank via a pipeline. The aeration assembly and the MBR membrane assembly in the biochemical unit are connected to the fan via a pipeline. The disinfection tank is connected to the disinfection device via a pipeline. The dechlorination tank is also connected to the dechlorination device via a pipeline. Disinfectant solution is supplied from the disinfection device to the disinfection tank via a pipeline, and dechlorination solution is supplied from the dechlorination device to the dechlorination tank via a pipeline.

[0005] The water production component further includes pipes, solenoid valves, and an MBR membrane water production pump. The pipes are arranged in a quadrilateral shape. The upper and lower pipes connect to the MBR membrane water production pump, the lower left pipe connects to the biochemical unit, and the upper right pipe connects to the disinfection tank. A solenoid valve is installed on each side: the upper solenoid valve is installed on the right side of the pipe connecting to the MBR membrane water production pump, and the lower solenoid valve is installed on the left side of the pipe connecting to the MBR membrane water production pump. The solenoid valves on opposite sides form a group, and the two groups of solenoid valves are switched on and off separately, which can reverse the water inlet and outlet directions of the water production component, realizing the MBR membrane water production function when pumping water to the biochemical unit and the MBR membrane backwash function when discharging water to the biochemical unit.

[0006] Furthermore, the device housing is a box-type structure, which is convenient for installation and construction.

[0007] Furthermore, the dechlorination device includes a barrel, a water pipe, a paddle mixer and a metering pump. The paddle mixer and the metering pump are installed on the top cover of the barrel, and the water pipe passes through the equipment shell and is connected to the barrel.

[0008] Furthermore, the disinfection device includes a barrel and a metering pump, and the paddle mixer and the metering pump are installed on the top cover of the barrel.

[0009] Furthermore, the septic tank also includes a water inlet pipe, which passes through the equipment shell and is connected to the septic tank, and the septic tank is connected to the regulating tank through a pipeline.

[0010] Furthermore, a lifting pump is provided in the regulating tank, and the lifting pump is connected to the biochemical unit through a pipeline.

[0011] Furthermore, the dechlorination tank also includes a connecting pipe, which passes through the equipment shell and is connected to the disinfection tank. The dechlorination tank is connected to the disinfection tank through the pipeline.

[0012] Furthermore, the dechlorination tank also includes a water outlet lifting pump, which is connected to the water outlet pipe.

[0013] Furthermore, liquid level sensors are installed in the regulating tank and dechlorination chamber. These sensors are located near the bottom and the top of the tank. They sense the current liquid level and control the start and stop of the lift pump or the outlet lift pump.

[0014] The utility model has the following beneficial effects:

[0015] 1) The product is highly integrated, integrating not only the septic tank, regulating tank, biochemical unit, disinfection tank, and dechlorination tank, but also an equipment room where fans, water pumps, disinfection devices, dechlorination devices, and other supporting equipment are rationally arranged. The relevant piping is pre-installed according to the process flow. The equipment can be directly towed to the site and connected to the water supply, tap water, and power lines for immediate use, making installation simple.

[0016] 2) The equipment has a compact structure and occupies a small area; BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the right side structure of the utility model equipment;

[0018] Figure 2 This is a front view of the device of the utility model;

[0019] Figure 3 This is a top view of the device of the utility model after removing the top cover;

[0020] Figure 4 It is a schematic diagram of the upper cross-section structure of the utility model.

[0021] In the figure: 1-equipment shell; 2-septic tank-equalization tank connecting pipe; 3-lifting pump; 4-aerator; 5-MBR membrane assembly; 6-disinfection tank-dechlorination tank connecting pipe; 7-valve; 8-electric control cabinet; 9-fan; 10-dechlorination device; 11-disinfection device; 12-metering pump; 13-MBR membrane water production pump; 14-solenoid valve; 15-water outlet lifting pump; 16-double door of equipment room; 17-air duct; 18-liquid level sensor; 19-paddle mixer; 20-barrel; a-water inlet pipe; b-water outlet pipe; c-aeration air duct; d-MBR air duct; g-water production inlet pipe; h-water production outlet pipe; k-tap water pipe; l-disinfection pipe; m-dechlorination pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1

[0024] See also Figure 1-4 The utility model provides a technical solution: an MBR integrated device for medical wastewater, the device comprising an equipment housing 1, wherein the equipment housing 1 is provided with: a septic tank, a regulating tank, a biochemical unit, a disinfection tank, a dechlorination tank and an equipment room; the equipment room comprises: a water production component, a fan, a disinfection device and a dechlorination device, the water production component is connected to the biochemical unit and the disinfection tank through a pipeline, the aeration component 4 and the MBR membrane component 5 in the biochemical unit are connected to the fan 9 through a pipeline, the disinfection tank is connected to the disinfection device 11 through a pipeline, and the dechlorination room is also connected to the dechlorination device 10 through a pipeline.

[0025] The water production assembly includes pipes, solenoid valves 14, and an MBR membrane water production pump 13. The pipes are arranged in a quadrilateral pattern. The upper and lower pipes connect to the MBR membrane water production pump 13, the lower left pipe connects to the biochemical unit, and the upper right pipe connects to the disinfection tank. A solenoid valve 14 is installed on each side: the upper solenoid valve 14 is mounted on the right side of the pipe connecting to the MBR membrane water production pump 13, and the lower solenoid valve 14 is mounted on the left side of the pipe connecting to the MBR membrane water production pump 13. The solenoid valves on opposite sides form a set, and the two sets of solenoid valves are switched on and off separately, reversing the water inlet and outlet directions of the water production assembly. This allows the MBR membrane to produce water when pumping water to the biochemical unit and backwash the MBR membrane when discharging water to the biochemical unit.

[0026] The equipment housing 1 is a box-type structure, which is convenient for installation and construction.

[0027] Dechlorination device 10 includes a barrel 20, a water pipe, a paddle mixer 19, and a metering pump 12. The paddle mixer 19 and metering pump 12 are mounted on the top cover of barrel 20, and the water pipe passes through the device housing 1 and connects to barrel 20. During use, sodium thiosulfate or a similar reducing agent is added to the dechlorination device along with water. After stirring with the paddle mixer 19, the dechlorination agent is delivered to the dechlorination tank via the metering pump 12 and pipeline.

[0028] The disinfection device 11 comprises a barrel and a metering pump 12, which is mounted on the top cover of the barrel 20. When in use, a finished sodium hypochlorite solution is added to the disinfection device, and the disinfectant is transported into the disinfection tank through the metering pump 12 and the pipeline.

[0029] The septic tank also includes a water inlet pipe, which passes through the equipment housing 1 and is connected to the septic tank, and the septic tank is connected to the regulating tank through a pipeline.

[0030] A lifting pump 3 is provided in the regulating tank, and the lifting pump is connected to the biochemical unit through a pipeline.

[0031] The dechlorination room further includes a connecting pipe, which passes through the equipment housing 1 and is connected to the disinfection tank. The dechlorination tank is connected to the disinfection tank through a pipeline.

[0032] The dechlorination tank further comprises a water outlet lift pump 15 , which is connected to the water outlet pipe.

[0033] There are also liquid level sensors 18 in the regulating tank and dechlorination tank. The liquid level sensors 18 are set at a low position near the bottom and a high position near the top. The liquid level sensors 18 sense the current liquid level and control the start and stop of the lift pump 3 or the water outlet lift pump 15.

[0034] Working principle: When using this device, Figure 1-4As shown, medical wastewater enters the septic tank through the water inlet pipe a, and the large floating objects and suspended objects in the medical wastewater are intercepted by the septic tank, so that the feces in the wastewater are settled to the bottom of the tank for anaerobic fermentation, thereby reducing the processing load of the subsequent system and preventing it from causing blockage or damage to the subsequent treatment equipment; the wastewater treated in the septic tank enters the regulating tank for water quality and water quantity adjustment to meet the needs of the subsequent treatment process; the wastewater is lifted to the biochemical unit by the lifting pump 3 to ensure that the wastewater can flow into the treatment system evenly; the wastewater enters the biochemical unit and passes through the aerator 4 Aeration is performed, and microorganisms are used to decompose and transform organic matter in the wastewater, biochemically degrading high-molecular organic pollutants into simpler organic matter, and then into harmless inorganic substances (such as CO2, H2O, NO3-, NO2-, etc.). The biochemically treated wastewater enters the MBR membrane module 5, where membrane separation technology further removes impurities and pollutants. The treated wastewater enters the disinfection tank, where the disinfection device adds disinfectant to disinfect the water, killing bacteria and viruses and ensuring the safety of the effluent. The disinfected wastewater contains residual chlorine and flows into the dechlorination tank. The dechlorination device adds dechlorination agent to remove residual chlorine in the water, reducing harm to the environment. After treatment, the wastewater is discharged through outlet b.

[0035] This utility model integrates a septic tank, regulating tank, biochemical unit, membrane assembly, disinfection unit, and dechlorination unit into a single unit. It also features an equipment room where fans, pumps, disinfection devices, and other supporting equipment are strategically located. The relevant piping is pre-installed according to the process flow. The entire unit can be towed directly to the site and simply connected to the water inlet, outlet, tap water, and power lines. Installation is simple, and the unit is compact and occupies a small footprint.

[0036] The above disclosure is only a specific embodiment of the present invention, but the present invention is not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. An MBR integrated equipment for medical wastewater, characterized by: The device comprises an equipment housing (1), wherein a biochemical unit is arranged in the equipment housing (1), a septic tank and a regulating tank are located on the left side of the biochemical unit, an equipment room is located at the lower right side of the biochemical unit, and a disinfection tank and a dechlorination tank are located above the equipment room; a water production component, a fan, a disinfection device and a dechlorination device are installed in the equipment room, the water production component is connected to the biochemical unit and the disinfection tank via a pipeline, an aeration component (4) and an MBR membrane component (5) in the biochemical unit are connected to the fan (9) via a pipeline, the disinfection tank is connected to the disinfection device (11) via a pipeline, and the dechlorination tank is also connected to the dechlorination device (10) via a pipeline.

2. The MBR integrated device according to claim 1, characterized in that The water production component includes: a pipeline, a solenoid valve (14) and an MBR membrane water production pump (13). The pipeline is divided into four quadrilaterals. The upper and lower connecting pipelines are connected to the MBR membrane water production pump (13). The lower left corner connecting pipeline is connected to the biochemical unit MBR membrane assembly. The upper right corner connecting pipeline is connected to the disinfection pool. A solenoid valve (14) is installed on each side. The upper solenoid valve (14) is installed on the right side of the pipeline connected to the MBR membrane water production pump (13), and the lower solenoid valve (14) is installed on the left side of the pipeline connected to the MBR membrane water production pump (13).

3. The MBR integrated device according to claim 1, characterized in that The equipment housing (1) is a box-type structure.

4. The MBR integrated device according to claim 1, characterized in that The dechlorination device (10) comprises: a barrel (20), a tap water pipe, a paddle stirrer (19) and a metering pump (12); the paddle stirrer (19) and the metering pump (12) are installed on the top cover of the barrel (20); and the tap water pipe passes through the device housing (1) and is connected to the barrel (20).

5. The MBR integrated equipment according to claim 1, characterized in that The disinfection device (11) comprises a barrel (20) and a metering pump (12), wherein the metering pump (12) is installed on the top cover of the barrel (20).

6. The MBR integrated device according to claim 1, characterized in that: The septic tank further comprises a water inlet pipe, which passes through the equipment housing (1) and is connected to the septic tank, and the septic tank is connected to the regulating tank through a pipeline.

7. The MBR integrated device according to claim 1, characterized in that: A lifting pump (3) is provided in the regulating tank, and the lifting pump is connected to the biochemical unit through a pipeline.

8. The MBR integrated device according to claim 1, characterized in that: The dechlorination tank further comprises a connecting pipe, wherein the connecting pipe (6) passes through the equipment housing (1) and is connected to the disinfection tank, and the dechlorination tank is connected to the disinfection tank through the pipe.

9. The MBR integrated device according to claim 1, characterized in that: The dechlorination tank further comprises a water outlet lift pump (15), and the water outlet lift pump (15) is connected to the water outlet pipe.

10. The MBR integrated device according to claim 7 or 9, characterized in that: There are also liquid level sensors (18) in the regulating tank and the dechlorination tank. The liquid level sensors (18) are arranged at a low position close to the bottom and a high position close to the top.

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