A wastewater treatment device

Abstract

The application relates to a wastewater treatment device and relates to the technical field of wastewater treatment, which comprises a box body, the box body is divided into a control area and a reaction area, a water inlet is arranged on the reaction area, a sludge discharge port is arranged at the lower portion of the reaction area, the reaction area comprises a first filtering mechanism and a second filtering mechanism; the first filtering mechanism comprises a plurality of first membrane filtering modules, the first membrane filtering module comprises a first membrane assembly arranged along the height direction of the reaction area, and the first membrane assembly is connected with a first water collecting pipe; the second filtering mechanism comprises a plurality of second membrane filtering modules, the second membrane filtering module comprises a second membrane assembly arranged along the height direction of the reaction area, the second membrane assembly is connected with a second water collecting pipe, the first water collecting pipe and the second water collecting pipe are connected with a total pipe, the total pipe is arranged in the control area, the bottom of the total pipe is connected with a water production pump, and the water production pump is connected with a water collecting tank. The application has the effects of efficiently utilizing space, reducing the occupied area, facilitating capacity expansion, directly reconfiguring the treated effluent into a carbon source as a product, and having a higher utilization rate.

Description

Technical Field

[0001] This application relates to the technical field of wastewater treatment, and in particular to a wastewater treatment apparatus. Background Technology

[0002] Kitchen waste, also known as food waste, refers to the garbage generated in daily life, food processing, catering services, and unit catering activities. It includes discarded vegetable leaves, leftover food, fruit peels, eggshells, tea dregs, bones, etc. Its main sources are family kitchens, restaurants, hotels, canteens, markets, and other industries related to food processing.

[0003] The main method for treating kitchen waste involves first crushing and pulping the kitchen waste and fruit and vegetable waste, then performing preliminary filtration followed by three-phase centrifugation. The oil layer is used as the product, while the water layer wastewater is sent to an anaerobic digestion system to produce biogas. This is then subjected to aerobic treatment before being discharged in compliance with standards. The slag layer requires incineration. In this method, the water layer wastewater undergoes anaerobic fermentation in an anaerobic digester to produce biogas before aerobic treatment. This process requires a large footprint, produces low-value biogas, and is not easily expandable.

[0004] Regarding the aforementioned technologies, the inventors believe that the wastewater first undergoes anaerobic fermentation to produce biogas, and then undergoes aerobic treatment. This process results in a large footprint for the treatment equipment, low added value of the biogas, and inconvenience for expanding production. Utility Model Content

[0005] To address the issues of wastewater treatment devices that require anaerobic fermentation to produce biogas before aerobic treatment, resulting in large footprints, low biogas added value, and inconvenience for expansion, this application provides a wastewater treatment device.

[0006] This application provides a wastewater treatment device, which adopts the following technical solution: A wastewater treatment device includes a tank, which is divided into a control zone and a reaction zone by a partition. The reaction zone has an inlet at the top and a sludge outlet at the bottom. The reaction zone includes a first filtration mechanism and a second filtration mechanism, which are symmetrically arranged along the width of the reaction zone. The first filtration mechanism includes a plurality of first membrane filtration modules arranged along the length of the reaction zone, and the first membrane filtration module includes a plurality of first membrane components arranged along the height of the reaction zone. The first membrane components are connected to a first water collection pipe. The second filtration mechanism includes a plurality of second membrane filtration modules arranged along the length of the reaction zone. Each second membrane filtration module includes a plurality of second membrane components arranged along the height of the reaction zone. Each second membrane component is connected to a second water collection pipe. Both the first and second water collection pipes are connected to a main pipe. The main pipe is vertically placed in the control area. A product water pump is connected to the bottom of the main pipe. The product water pump is connected to a water collection tank.

[0007] By adopting the above technical solution, the housing provides a spatial foundation for the control area and the reaction area. The partition divides the housing space into the control area and the reaction area. The inlet in the reaction area provides an inlet for untreated wastewater. The reaction area also provides an installation foundation for the first and second filtration mechanisms. The first and second filtration mechanisms are positioned along the width of the reaction area. The first filtration mechanism contains multiple first membrane filtration modules along the length of the reaction area, and the second filtration mechanism contains multiple second membrane filtration modules along the length of the reaction area. Each first membrane filtration module contains multiple first membrane components along the height of the reaction area, and each second membrane filtration module contains multiple... The second membrane module, by setting multiple sets of membrane modules for wastewater treatment in the width, length, and height directions of the reaction zone, can efficiently utilize space, reduce the footprint of the wastewater treatment device, and facilitate production expansion. After the wastewater passes through multiple sets of first and second membrane modules, suspended solids, colloids, bacteria, and other organic matter in the wastewater are effectively intercepted, reducing the suspended solids in the effluent. It can also remove some of the chemical oxygen demand, ammonia nitrogen, total phosphorus, and total nitrogen in the wastewater, resulting in treated effluent. The treated effluent passes through the first and second water collection pipes and then enters the main pipe. The treated effluent is collected into a water collection tank by the product water pump. The treated effluent of this device can be directly compounded into a carbon source as a product, with a high utilization rate.

[0008] Optionally, both the first and second filtration mechanisms are equipped with support frames at their bottoms. An aeration component is provided at the bottom of the support frame. The aeration component is connected to an air inlet pipe. One end of the air inlet pipe is connected to the air inlet end of the aeration component, and the other end is connected to a blower located within the control area.

[0009] By adopting the above technical solution, the support frame provides an installation foundation for the first and second filtration mechanisms, and also provides an installation foundation for the aeration components. The blower provides an external air source for the aeration components, promoting the decomposition of organic matter in the wastewater, helping to remove pollutants from the wastewater, and improving the effluent quality. Furthermore, the blower is installed in the control area, which is convenient for operators to control. The aeration components can increase the dissolved oxygen concentration in the wastewater during the wastewater treatment process, promote the growth and metabolism of aerobic microorganisms, and thus reduce the chemical oxygen demand and biochemical oxygen demand in the wastewater.

[0010] Optionally, the first membrane assembly includes a first membrane support and a plurality of first membrane sheets arranged on the first membrane support. The first membrane support is located on the support frame and has a first water production end, which is connected to the first water collection pipe. The second membrane assembly includes a second membrane support and a plurality of second membrane sheets arranged on the second membrane support. The second membrane support is located on the support frame and has a second water production end, which is connected to the second water collection pipe.

[0011] By adopting the above technical solution, the first membrane support is configured to provide an installation base for several first membrane sheets, and the second membrane support is configured to provide an installation base for several second membrane sheets. Wastewater passing through multiple sets of first and second membrane sheets can efficiently separate suspended solids, colloids, bacteria and other harmful substances in the wastewater. That is, large molecular organic matter, colloids, bacteria and other substances are trapped on the surface of the first and second membrane sheets, promoting biodegradation reactions and removing some of the chemical oxygen demand, ammonia nitrogen, total phosphorus and total nitrogen in the wastewater. Water molecules pass through the membrane pores into the first and second membrane sheets, and the water molecules collect at the first and second product water ends. The water from the first product water end enters the first collection pipe, and the water from the second product water end enters the second collection pipe.

[0012] Optionally, the first water production end is connected to a first hose, which is connected to the first water collection pipe, and the second water production end is connected to a second hose, which is connected to the second water collection pipe.

[0013] By adopting the above technical solution, the first hose is configured to provide a connecting component between the first membrane module and the first water collection pipe, which facilitates the connection between the two and the delivery of water. The second hose is configured to provide a connecting component between the second membrane module and the second water collection pipe, which facilitates the connection between the two and the delivery of water.

[0014] Optionally, both the first and second water collection pipes pass through the partition, and both the first and second water collection pipes are connected to a transparent pipe. The transparent pipe is connected to the main pipe, and both the transparent pipe and the main pipe are located within the control area. Electrically controlled valves are installed on both sides of the transparent pipe.

[0015] By adopting the above technical solution, the transparent pipe is set up to collect the water from multiple sets of first and second water collection pipes into the main pipe. The transparent pipe is located in the control area, which facilitates the staff to observe the water status inside the transparent pipe.

[0016] Optionally, a backwash pump is installed at the upper part of the main pipe, and a vacuum pressure gauge is also installed on the main pipe. The vacuum pressure gauge is located between the backwash pump and the product water pump. One end of the backwash pump is connected to a storage tank for storing the filtrate.

[0017] By adopting the above technical solution, the backwash pump is set up to provide a basis for backwashing multiple sets of first and second membrane modules in the reaction zone. The storage tank provides filtrate for the backwash pump. If the effluent becomes turbid when observed through the transparent tube, the corresponding membrane module needs to be backwashed to improve its filtration efficiency, thereby restoring the function of its membrane.

[0018] Optionally, the first and second membranes are ceramic membranes.

[0019] By adopting the above technical solution, the first membrane and the second membrane are ceramic membranes. Ceramic membranes have high filtration accuracy and can remove fine particulate matter, suspended solids, bacteria and viruses from wastewater, achieving a higher water purification effect. Ceramic membranes can adapt to various harsh working environments, including wastewater treatment scenarios with high turbidity and high salinity, and are especially suitable for situations where wastewater contains a large number of solid particles, oil and other complex pollutants.

[0020] Optionally, an overflow port is provided at the upper end of the reaction zone, and a deodorizing exhaust port is provided at the top of the reaction zone.

[0021] By adopting the above technical solution, the overflow port is designed for emergency overflow. When the wastewater in the reaction zone is too full or too much aeration foam is generated, the overflowing wastewater or foam will flow out from the overflow port to the corresponding waste liquid pipe, thus preventing the occurrence of dangerous production.

[0022] Optionally, an inspection port is provided at the top of the reaction zone, and an inspection cover is installed on the inspection port, with a handle provided on the inspection cover.

[0023] By adopting the above technical solution, the inspection port is designed to facilitate personnel to enter the reaction area and carry out internal inspection and repair operations. The inspection cover is designed to protect the inspection port, prevent fluid leakage, and facilitate inspection and maintenance. The handle is designed to facilitate personnel to open or close the inspection cover.

[0024] Optionally, a ladder is provided on one side of the reaction zone, and a step ladder is movably installed on the outside of the box.

[0025] By adopting the above technical solutions, the ladder facilitates the installation and maintenance of the reaction zone by the operators, and the step ladder facilitates the operators to reach the top of the reaction zone.

[0026] In summary, this application includes at least one of the following beneficial technical effects: Multiple membrane modules for wastewater treatment are installed in the width, length, and height directions of the reaction zone, which can make efficient use of space, reduce the footprint of the wastewater treatment device, and facilitate production expansion. After the wastewater passes through multiple first and second membrane modules, suspended solids, colloids, bacteria and other organic matter in the wastewater are effectively intercepted, reducing the suspended solids in the effluent and removing some of the chemical oxygen demand, ammonia nitrogen, total phosphorus and total nitrogen in the wastewater, resulting in treated effluent. The wastewater treatment process is simple and the treatment effect is good. Moreover, the effluent treated by this device can be directly compounded into a carbon source as a product, which has a high utilization rate. The water from multiple sets of first and second water collection pipes is collected into the main pipe through a transparent pipe. The transparent pipe is located in the control area, which makes it easy for staff to observe the water status inside the transparent pipe. When the water becomes turbid as observed through the transparent tube, it indicates that the filtration efficiency of the corresponding membrane module has decreased. Backwashing with a backwashing pump is required to improve its filtration efficiency and restore the membrane's function. Attached Figure Description

[0027] Figure 1 This is an external front view of the wastewater treatment device according to an embodiment of this application; Figure 2 This is an external side view of the wastewater treatment device according to an embodiment of this application; Figure 3 This is an external top view of the wastewater treatment device according to an embodiment of this application; Figure 4 This is an internal front view of the wastewater treatment device according to an embodiment of this application; Figure 5 This is an internal side view of the wastewater treatment device according to an embodiment of this application; Figure 6 This is an internal top view of the wastewater treatment device according to an embodiment of this application; Figure 7 yes Figure 6 Enlarged view of section A; Figure 8 This is an external side view of the wastewater treatment device with steps in an embodiment of this application.

[0028] Explanation of reference numerals in the attached figures: 1. Housing; 11. Partition; 2. Control Area; 21. Main Pipe; 211. Product Water Pump; 212. Backwash Pump; 213. Vacuum Pressure Gauge; 22. Transparent Tube; 221. Electrically Controlled Valve; 23. Blower; 3. Reaction Zone; 31. Inlet; 32. Sludge Discharge Port; 33. First Filtration Mechanism; 331. First Membrane Filtration Module; 3311. First Membrane Assembly; 33111. First Membrane Support; 33112. First Product Water End; 33113. First Flexible Hoses; 33114. First Membrane Sheet; 332. First water collection pipe; 34. Second filtration mechanism; 341. Second membrane filtration module; 3411. Second membrane assembly; 34111. Second membrane support; 34112. Second water production end; 34113. Second hose; 34114. Second membrane sheet; 342. Second water collection pipe; 35. Support frame; 351. Aeration assembly; 352. Air inlet pipe; 36. Overflow port; 37. Deodorizing exhaust port; 38. Inspection port; 381. Inspection cover; 382. Handle; 39. Ladder; 4. Steps. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0030] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0033] This application discloses a wastewater treatment device, referring to... Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 The wastewater treatment device includes a housing 1, which is divided into a control zone 2 and a reaction zone 3 by a partition 11. The upper part of the reaction zone 3 has a water inlet 31 and the lower part of the reaction zone 3 has a sludge discharge outlet 32. The reaction zone 3 includes a first filtration mechanism 33 and a second filtration mechanism 34, which are symmetrically arranged along the width of the reaction zone 3. The first filtration mechanism 33 includes a plurality of first membrane filtration modules 331 arranged along the length of the reaction zone 3. The first membrane filtration module 331 includes a plurality of first membrane components 3311 arranged along the height of the reaction zone 3. The first membrane components 3311 are connected to a first water collection pipe 332. The second filtration mechanism 34 includes a plurality of second membrane filtration modules 341 arranged along the length of the reaction zone 3. The second membrane filtration module 341 includes a plurality of second membrane components 3411 arranged along the height of the reaction zone 3. The second water production end 34112 of the second membrane component 3411 is connected to a second water collection pipe 342. The first water collection pipe 332 and the second water collection pipe 342 are both connected to a main pipe 21. The main pipe 21 is vertically placed in the control zone 2. The bottom of the main pipe 21 is connected to a water production pump 211. The water production pump 211 is connected to a water collection tank.

[0034] The housing 1 provides space for the control zone 2 and the reaction zone 3. The partition 11 divides the space of the housing 1 into the control zone 2 and the reaction zone 3 in a reasonable manner, which facilitates observation and control of the reaction zone 3 from the control zone 2. Untreated wastewater is introduced into the reaction zone 3 through the inlet 31. A first filtration mechanism 33 and a second filtration mechanism 34 are set in the width direction of the reaction zone 3. Multiple first membrane filtration modules 331 are set in the length direction of the reaction zone 3 within the first filtration mechanism 33. Multiple second membrane filtration modules 341 are set in the length direction of the reaction zone 3 within the second filtration mechanism 34. Multiple first membrane components 3311 are set in the height direction of the reaction zone 3 within the first membrane filtration module 331. Multiple second membrane components 3411 are set in the height direction of the reaction zone 3 within the second membrane filtration module 341. By setting multiple sets of membrane components for wastewater treatment in the width, length and height directions of the reaction zone 3, space can be used efficiently, the footprint of the wastewater treatment device can be reduced, and it is convenient to expand production.

[0035] After passing through multiple sets of first membrane modules 3311 and second membrane modules 3411, the wastewater effectively retains suspended solids, colloids, bacteria, and other organic matter, reducing the suspended solids in the effluent. It also removes some of the chemical oxygen demand (COD), ammonia nitrogen, total phosphorus, and total nitrogen from the wastewater, resulting in treated effluent. The treated effluent then flows through the first and second collection pipes 332 and into the main pipe 21. The product water pump 211 collects the treated effluent into a collection tank. The treated effluent can be directly compounded into a carbon source as a product, exhibiting high utilization efficiency. Carbon sources play a crucial role in wastewater treatment, providing microorganisms with the energy and nutrients needed for growth and metabolism, promoting microbial reproduction and biological reactions. By decomposing and utilizing carbon sources, microorganisms can convert organic matter in wastewater into inorganic matter, thereby achieving water purification.

[0036] refer to Figure 4 , Figure 5 and Figure 6 Both the first filtration mechanism 33 and the second filtration mechanism 34 are equipped with support frames 35 at their bottoms. An aeration component 351 is installed at the bottom of the support frame 35, and the aeration component 351 is connected to an air inlet pipe 352. One end of the air inlet pipe 352 is connected to the air inlet end of the aeration component 351, and the other end is connected to a blower 23, which is located within the control area 2. The support frame 35 provides a foundation for the installation of both the first and second filtration mechanisms 33 and 34, as well as for the aeration component 351. The blower 23 provides an external air source for the aeration component 351, promoting the decomposition of organic matter in the wastewater, helping to remove pollutants, and improving the effluent quality. Furthermore, the blower 23 is installed in the control area 2, which is convenient for operators to control. The aeration component 351 can increase the dissolved oxygen concentration in the wastewater during the wastewater treatment process, promoting the growth and metabolism of aerobic microorganisms, thereby reducing the chemical oxygen demand (COD) and biochemical oxygen demand (BOD) in the wastewater.

[0037] Reference Figure 4 , Figure 6 and Figure 7The first membrane assembly 3311 includes a first membrane support 33111 and a plurality of first membrane sheets 33114 arranged on the first membrane support 33111. The first membrane support 33111 is located on a support frame 35. A first product water end 33112 is provided on the first membrane support 33111 and is connected to a first water collection pipe 332. The first membrane support 33111 provides an installation foundation for the plurality of first membrane sheets 33114. The second membrane assembly 3411 includes a second membrane support 34111 and a plurality of second membrane sheets 34114 arranged on the second membrane support 34111. The second membrane support 34111 is located on a support frame 35. A second product water end 34112 is provided on the second membrane support 34111 and is connected to a second water collection pipe 342. The second membrane support 34111 provides an installation foundation for the plurality of second membrane sheets 34114.

[0038] In reaction zone 3, wastewater passes through multiple sets of first membranes 33114 and second membranes 34114, which can efficiently separate harmful substances such as suspended solids, colloids, and bacteria from the wastewater. That is, large molecular organic matter, colloids, and bacteria are trapped on the surface of the first membranes 33114 and second membranes 34114, promoting biodegradation reactions and removing some of the chemical oxygen demand, ammonia nitrogen, total phosphorus, and total nitrogen from the wastewater. Water molecules pass through the membrane pores into the first membranes 33114 and second membranes 34114, and the water molecules collect at the first water production end 33112 and the second water production end 34112. The water from the first water production end 33112 enters the first water collection pipe 332, and the water from the second water production end 34112 enters the second water collection pipe 342.

[0039] The first water production end 33112 is connected to a first hose 33113, which communicates with the first water collection pipe 332. The second water production end 34112 is connected to a second hose 34113, which communicates with the second water collection pipe 342. The first hose 33113 provides a connecting component between the first membrane module 3311 and the first water collection pipe 332, facilitating communication between the two and the delivery of water. The second hose 34113 provides a connecting component between the second membrane module and the second water collection pipe 342, facilitating communication between the two and the delivery of water.

[0040] Both the first water collection pipe 332 and the second water collection pipe 342 pass through the partition 11. Both the first water collection pipe 332 and the second water collection pipe 342 are connected to a transparent pipe 22, which is connected to the main pipe 21. Both the transparent pipe 22 and the main pipe 21 are located within the control zone 2. Electrically controlled valves 221 are installed on both sides of the transparent pipe 22. By observing the state of the water flowing out of the transparent pipe 22, the filtration efficiency in the reaction zone 3 can be estimated. The water flowing out of multiple sets of the first water collection pipes 332 and the second water collection pipes 342 is collected into the main pipe 21 through the transparent pipe 22. The transparent pipe 22 is located within the control zone 2, facilitating observation of the water flowing out of the transparent pipe 22 by the operator. When the water flowing out of the transparent pipe 22 is turbid, the filtration efficiency in the reaction zone 3 is low, requiring backwashing. When no water flows out of the transparent pipe 22, a first membrane module 3311 or a second membrane module 3411 in the reaction zone 3 may be damaged, requiring the operator to inspect and replace the damaged component.

[0041] A backwash pump 212 is installed at the top of the main pipe 21, and a vacuum pressure gauge 213 is also installed on the main pipe 21. The vacuum pressure gauge 213 is located between the backwash pump 212 and the product water pump 211. One end of the backwash pump 212 is connected to a storage tank for storing the filtrate. The backwash pump 212 provides the basis for backwashing the multiple sets of first membrane modules 3311 and second membrane modules 3411 in the reaction zone 3. The storage tank provides the filtrate for the backwash pump 212. If the effluent becomes turbid as observed through the transparent tube 22, the corresponding membrane module needs to be backwashed to improve its filtration efficiency and thus restore its membrane function. The main backwashing process involves shutting off the permeate pump 211 and turning on the backwash pump 212 and blower 23. The backwash pump 212 pumps the filtrate from the storage tank into the transparent pipe 22 through the main pipe 21. The filtrate then enters the first collection pipe 332 and the second collection pipe 342, and is introduced into the first permeate end 33112 and the second permeate end 34112 to backwash the corresponding first membrane 33114 and second membrane 34114. The blower 23 provides an external air source to the aeration component 351, achieving the cleaning purpose and restoring or maintaining the filtration performance of some of the first membrane 33114 and second membrane 34114. The backwashed sludge is discharged through the sludge discharge port 32, and the liquid from this process can participate in the next wastewater treatment.

[0042] In the embodiments of this application, the first and second membranes 34114 are ceramic membranes. Ceramic membranes have a high rejection rate and can effectively remove certain pollutants such as chemical oxygen demand, improving the purification effect of wastewater. Ceramic membranes also have high filtration precision, capable of removing fine particulate matter, suspended solids, bacteria, and viruses from wastewater, achieving a higher water purification effect. Ceramic membranes can adapt to various harsh working environments, including wastewater treatment scenarios with high turbidity and high salinity, and are particularly suitable for wastewater containing a large amount of solid particles, oil, and other complex pollutants. The fine filtration function of this membrane module can remove more pollutants, including some substances that are difficult to biodegrade, thereby significantly improving the quality of the effluent and meeting stricter discharge standards or reclaimed water requirements.

[0043] An overflow port 36 is provided at the upper end of the reaction zone 3, and a deodorizing exhaust port 37 is provided at the top of the reaction zone 3. The overflow port 36 provides an outlet for emergency overflow. When the wastewater in the reaction zone 3 is too full or excessive aeration foam is generated, the overflowing wastewater or foam will flow out from the overflow port 36 to the corresponding waste liquid pipe, preventing the occurrence of dangerous production. After being treated by several first membrane modules 3311 and second membrane modules 3411 in the reaction tank, the generated odors can be discharged through the deodorizing exhaust port 37.

[0044] An inspection port 38 is provided at the top of the reaction zone 3, allowing personnel to easily enter the reaction zone 3 for inspection and maintenance. The inspection port 38 is fitted with an inspection cover 381, which has a handle 382. The inspection cover 381 protects the inspection port 38, prevents fluid leakage, and facilitates inspection and maintenance. The handle 382 allows personnel to easily open or close the inspection cover 381.

[0045] refer to Figure 8 A ladder 39 is installed on one side of the reaction zone 3, which facilitates the installation and maintenance of the reaction zone 3 by the operator. A step ladder 4 is installed on the outside of the box 1, which facilitates the operator to reach the top of the reaction zone 3. For convenient transportation, the step ladder 4 is designed to be movable and detachable.

[0046] To enable automated and intelligent production of the device, control area 2 is also equipped with a space for a PLC control system. The PLC control system is electrically connected to the backwash pump 212, the product water pump 211, and the blower 23, which can achieve automatic program operation and real-time monitoring, and ensure safe, continuous and stable production.

[0047] This application provides a wastewater treatment device: multiple sets of membrane modules for wastewater treatment are arranged in the width, length, and height directions of the reaction zone 3. This allows for efficient use of space, reduces the footprint of the wastewater treatment device, and facilitates production expansion. After the wastewater passes through multiple sets of first membrane modules 3311 and second membrane modules 3411, suspended solids, colloids, bacteria, and other organic matter in the wastewater are effectively intercepted, reducing the suspended solids in the effluent. The device also removes some of the chemical oxygen demand, ammonia nitrogen, total phosphorus, and total nitrogen from the wastewater, resulting in treated effluent. The wastewater treatment process is simple, the treatment effect is good, and the effluent treated by this device can be directly compounded into a carbon source as a product, exhibiting a high utilization rate.

[0048] In the embodiments of this application, when the liquid level reaches about 70% of the reaction zone 3, the product water pump 211 and blower 23 are turned on. After the wastewater is treated by multiple sets of first membrane modules 3311 and second membrane modules 3411, the effluent is transported through the first product water end 33112 and the second product water end 34112 to the first water collection pipe 332 and the second water collection pipe 342. The effluent from the multiple sets of first water collection pipes 332 and second water collection pipes 342 is collected into the main pipe 21 through the transparent pipe 22. The treated effluent from the main pipe 21 is collected into the water collection tank by the product water pump 211. The effluent treated by this device can be directly compounded into a carbon source as a product, which has a high utilization rate. The transparent tube 22 is located within the control zone 2, facilitating observation of the water output status by staff. If the water becomes turbid through the transparent tube 22, the corresponding membrane module's filtration efficiency decreases. In this case, the permeate pump 211 must be shut down, and the backwash pump 212 must be turned on. The backwash pump 212 backwashes the first membrane module 3311 and the second membrane module 3411 located in the reaction zone 3, improving their filtration efficiency and restoring their membrane function. If no water output is observed through the transparent tube 22, the corresponding membrane module may be damaged. The first membrane module 3311 or the second membrane module 3411 in the reaction zone 3 must be inspected or replaced through the inspection port 38. If the reaction zone 3 is overfilled with wastewater or excessive aeration foam is generated, the overflowing wastewater or foam will flow from the overflow port 36 to the corresponding waste liquid pipe, preventing any hazardous production.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A wastewater treatment device, characterized in that: The container includes a housing (1), which is divided into a control area (2) and a reaction area (3) by a partition (11). The reaction area (3) has a water inlet (31) at the top and a sludge discharge outlet (32) at the bottom. The reaction area (3) includes a first filter mechanism (33) and a second filter mechanism (34), which are symmetrically arranged along the width of the reaction area (3). The first filtration mechanism (33) includes a plurality of first membrane filtration modules (331) arranged along the length direction of the reaction zone (3). The first membrane filtration module (331) includes a plurality of first membrane components (3311) arranged along the height direction of the reaction zone (3). The first membrane components (3311) are connected to a first water collection pipe (332). The second filtration mechanism (34) includes a plurality of second membrane filtration modules (341) arranged along the length of the reaction zone (3). The second membrane filtration module (341) includes a plurality of second membrane components (3411) arranged along the height of the reaction zone (3). The second membrane components (3411) are connected to a second water collection pipe (342). The first water collection pipe (332) and the second water collection pipe (342) are both connected to a main pipe (21). The main pipe (21) is vertically placed in the control zone (2). A water production pump (211) is connected to the bottom of the main pipe (21). The water production pump (211) is connected to a water collection tank.

2. The wastewater treatment device according to claim 1, characterized in that: The first filter mechanism (33) and the second filter mechanism (34) are both equipped with a support frame (35) at the bottom. An aeration component (351) is provided at the bottom of the support frame (35). The aeration component (351) is connected to an air inlet pipe (352). One end of the air inlet pipe (352) is connected to the air inlet end of the aeration component (351), and the other end is connected to a blower (23). The blower (23) is located in the control area (2).

3. The wastewater treatment device according to claim 2, characterized in that: The first membrane module (3311) includes a first membrane support (33111) and a plurality of first membrane sheets (33114) arranged on the first membrane support (33111). The first membrane support (33111) is located on the support frame (35). A first water production end (33112) is provided on the first membrane support (33111), and the first water production end (33112) is connected to the first water collection pipe (332). The second membrane assembly (3411) includes a second membrane support (34111) and a plurality of second membrane sheets (34114) arranged on the second membrane support (34111). The second membrane support (34111) is located on the support frame (35). A second water production end (34112) is provided on the second membrane support (34111), and the second water production end (34112) is connected to the second water collection pipe (342).

4. The wastewater treatment device according to claim 3, characterized in that: The first water production end (33112) is connected to a first hose (33113), which is connected to the first water collection pipe (332). The second water production end (34112) is connected to a second hose (34113), which is connected to the second water collection pipe (342).

5. The wastewater treatment device according to claim 1, characterized in that: The first water collection pipe (332) and the second water collection pipe (342) both pass through the partition (11). The first water collection pipe (332) and the second water collection pipe (342) are both connected to a transparent pipe (22). The transparent pipe (22) is connected to the main pipe (21). The transparent pipe (22) and the main pipe (21) are both located in the control area (2). Electric control valves (221) are installed on both sides of the transparent pipe (22).

6. The wastewater treatment device according to claim 1, characterized in that: A backwash pump (212) is installed on the upper part of the main pipe (21), and a vacuum pressure gauge (213) is also installed on the main pipe (21). The vacuum pressure gauge (213) is located between the backwash pump (212) and the product water pump (211). One end of the backwash pump (212) is connected to a storage tank for storing the filtrate.

7. The wastewater treatment device according to claim 3, characterized in that: Both the first diaphragm (33114) and the second diaphragm (34114) are ceramic diaphragms.

8. The wastewater treatment device according to claim 1, characterized in that: An overflow port (36) is provided at the upper end of the reaction zone (3), and a deodorizing exhaust port (37) is provided at the top of the reaction zone (3).

9. The wastewater treatment device according to claim 1, characterized in that: The top of the reaction zone (3) is provided with an inspection port (38), and the inspection port (38) is equipped with an inspection cover (381), and the inspection cover (381) is provided with a handle (382).

10. The wastewater treatment device according to claim 1, characterized in that: A ladder (39) is provided on one side of the reaction zone (3), and a step ladder (4) is movably installed on the outside of the box (1).

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