CN213569634U - Vehicle-mounted three-stage membrane high-risk wastewater treatment equipment - Google Patents
Vehicle-mounted three-stage membrane high-risk wastewater treatment equipment Download PDFInfo
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- CN213569634U CN213569634U CN202021962326.XU CN202021962326U CN213569634U CN 213569634 U CN213569634 U CN 213569634U CN 202021962326 U CN202021962326 U CN 202021962326U CN 213569634 U CN213569634 U CN 213569634U
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Abstract
The application discloses vehicle-mounted three-stage membrane high-risk wastewater treatment equipment which comprises a three-stage membrane unit, wherein the three-stage membrane unit comprises a first-stage membrane component, a second-stage membrane component and a third-stage membrane component which are sequentially connected in series; the first-stage membrane module is composed of at least one ceramic membrane; the second-stage membrane module is composed of at least one UF membrane; the third stage membrane module is composed of at least one RO membrane. The vehicle-mounted three-stage membrane high-risk wastewater treatment equipment realizes multi-filtration step by arranging the three-stage membrane unit consisting of the ceramic membrane, the UF membrane and the RO membrane, and has the advantages of compact separation process, high separation efficiency and good effect; simultaneously, set up return water subassembly and CIP wiper mechanism through the cooperation, further promote tertiary membrane unit filtration quality and life.
Description
Technical Field
The application relates to a high-risk waste water treatment technical field especially relates to a tertiary membrane high-risk waste water treatment equipment of vehicular.
Background
With global industrialization, environmental pollution is accompanied by industrial development, and strict management of industrial wastewater becomes an indispensable means for effectively controlling environmental pollution.
The industries of circuit board manufacturing, metal surface treatment, battery manufacturing and the like can generate a large amount of high-risk wastewater with various heavy metal ions and high COD content in the production process. The effective treatment of high-risk waste water is an important problem to be solved urgently in the industrial development process of China.
At present, a membrane treatment system is usually used in the treatment process of high-risk wastewater, but the existing membrane treatment system occupies a large area and is inconvenient to move; meanwhile, the membrane module of the existing membrane treatment system is single, so that the wastewater treatment mode is single, the wastewater treatment operation cannot be independently completed, and a plurality of different sets of wastewater treatment equipment are usually required to be arranged for matching use; moreover, the membrane module of the existing membrane processing system is usually not cleaned in time, which results in serious pollution and low filtration quality of the membrane module.
Disclosure of Invention
The present application aims to solve at least one of the above technical problems to a certain extent.
The application provides a tertiary membrane high-risk effluent treatment plant of vehicular, including tertiary membrane unit, tertiary membrane unit includes:
the first-stage membrane module, the second-stage membrane module and the third-stage membrane module are sequentially connected in series;
the three-stage membrane unit is provided with a wastewater inlet end arranged at the first-stage membrane component and a filtrate outlet end arranged at the third-stage membrane component;
the first-stage membrane module is composed of at least one ceramic membrane; the second-stage membrane module is composed of at least one UF membrane; the third stage membrane module is composed of at least one RO membrane.
Further, the water flux of the first-stage membrane module is greater than that of the second-stage membrane module, and the water flux of the second-stage membrane module is greater than that of the third-stage membrane module.
Further, the ratio of the water flux of the first-stage membrane module to the water flux of the second-stage membrane module is 1.5: 1.
further, the ratio of the water flux of the second-stage membrane module to the water flux of the third-stage membrane module is 1.5: 1.
further, the first-stage membrane assembly is provided with a first wastewater inlet, a first filtrate outlet and a first concentrated solution outlet;
the second-stage membrane assembly is provided with a second wastewater inlet, a second filtrate outlet and a second concentrated solution outlet;
the third-stage membrane component is provided with a third waste water inlet, a third filtrate outlet and a third concentrated solution outlet;
the second wastewater inlet is communicated with the first filtrate outlet; and the third waste water inlet is communicated with the second filtrate outlet.
Furthermore, the three-stage membrane unit also comprises a first water return component, a second water return component and a third water return component which are arranged in one-to-one correspondence with the first-stage membrane component, the second-stage membrane component and the third-stage membrane component;
the first backwater assembly comprises:
the first water return pipe is communicated with the first concentrated solution outlet and the first wastewater inlet; and
the first water return driving mechanism is used for driving the first concentrated solution to circularly flow between the first water return pipe and the first-stage membrane assembly;
the second water return assembly comprises:
the second water return pipe is communicated with the second concentrated solution outlet and the first wastewater inlet; and
the second water return driving mechanism is used for driving the second concentrated solution to circularly flow between the second water return pipe and the first-stage membrane component;
the third return water assembly comprises:
a third water return pipe for communicating the third concentrated solution outlet with the second wastewater inlet; and
and the third water return driving mechanism is used for driving the third concentrated solution to circularly flow between the third water return pipe and the second-stage membrane component.
Further, the tertiary membrane unit further comprises:
the first concentrated solution outlet pipe is communicated with the first concentrated solution outlet;
the second concentrated solution outlet pipe is communicated with the second concentrated solution outlet;
a third concentrated solution outlet pipe communicated with the third concentrated solution outlet;
the first flow dividing valve controls the first concentrated solution water outlet to be communicated with the first water return pipe or the first concentrated solution water outlet pipe;
the second flow dividing valve controls the second concentrated solution water outlet to be communicated with a second water return pipe or a second concentrated solution water outlet pipe; and
and the third flow dividing valve controls the third concentrated solution water outlet to be communicated with a third water return pipe or a third concentrated solution water outlet pipe.
Further, tertiary membrane high-risk effluent disposal plant of vehicular still includes CIP cleaning unit, CIP cleaning unit includes:
the first CIP cleaning mechanism is communicated with the first-stage membrane component;
the second CIP cleaning mechanism is communicated with the second-stage membrane component; and
and the third CIP cleaning mechanism is communicated with the third-stage membrane module.
Further, the first CIP cleaning mechanism is provided with a first cleaning wastewater discharge port; the second CIP cleaning mechanism is provided with a second cleaning wastewater outlet; the third CIP cleaning mechanism is provided with a third cleaning wastewater outlet; the first cleaning wastewater discharge port, the second cleaning wastewater discharge port and the third cleaning wastewater discharge port are communicated with the first wastewater inlet.
Further, tertiary membrane high-risk effluent disposal plant of vehicular still includes:
a transportation device provided with wheels; and
the box body is fixedly arranged on the transportation device;
the three-stage membrane unit is arranged in the box body.
The beneficial effect of this application is: by arranging a three-stage membrane unit consisting of a ceramic membrane, a UF membrane and an RO membrane, the step-by-step multiple filtration is realized, the separation process is compact, the separation efficiency is high, and the effect is good; by arranging the first water return assembly, the second water return assembly and the third water return assembly, the filtering quality is further improved, and the recovery amount of the concentrated solution is reduced; simultaneously, set up first CIP wiper mechanism, second CIP wiper mechanism and third CIP wiper mechanism through the cooperation, realize effectively wasing tertiary membrane unit in time, further effectively promote tertiary membrane unit to the throughput of high-risk waste water, keep tertiary membrane unit filtration quality and life.
Drawings
FIG. 1 is a schematic plane structure diagram of the vehicle-mounted three-stage membrane high-risk wastewater treatment equipment.
Fig. 2 is a schematic plan view of a three-stage membrane unit according to the present application.
FIG. 3 is a schematic diagram of the first embodiment of the vehicle-mounted three-stage membrane high-risk wastewater treatment equipment.
FIG. 4 is a schematic diagram of the second embodiment of the vehicle-mounted three-stage membrane high-risk wastewater treatment equipment.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature therebetween; also, the first feature "on," "above" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature; the first feature being "under," "below," and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or merely indicates that the first feature is at a lower level than the second feature.
The present application will be described in further detail below with reference to the accompanying drawings by way of specific embodiments.
Referring to fig. 1 to 4, the present application provides a vehicle-mounted three-stage membrane high-risk wastewater treatment device, which includes a three-stage membrane unit 100, a mobile device 200, and a box 300.
The transportation device 200 has wheels 201 for carrying and moving the tertiary membrane unit 100. The box 300 has a holding cavity, the three-stage film unit 100 is fixedly arranged in the holding cavity of the box 300, and a box door capable of being opened and closed is arranged on the box 300. In this application, the transportation device 200 may be a flatbed truck, or the transportation device 200 may also be a flatbed trailer connected to a truck head, the box 300 is fixed on the transportation device 200, the box 300 may be configured to be non-detachable with the transportation device 200, or the box 300 may also be configured to be detachable with the transportation device 200.
The three-stage membrane unit 100 is used for performing three-stage filtration on high-risk wastewater, and comprises a first-stage membrane module 10, a second-stage membrane module 20 and a third-stage membrane module 30 which are connected in series in sequence, wherein the first-stage membrane module 10, the second-stage membrane module 20 and the third-stage membrane module 30 are respectively composed of different membrane elements. The third-stage membrane unit 100 has a wastewater inlet end disposed at the first-stage membrane module 10 for high-risk wastewater to enter, and a filtrate outlet end disposed at the third-stage membrane module 30 for filtrate to flow out after being processed by the third-stage membrane unit, the wastewater inlet end is communicated with the high-risk wastewater supply device 91, and the filtrate outlet end is connected with the filtrate recovery device 92. The high-risk wastewater supply device 91 and the filtrate recovery device 92 can be carried by the vehicle-mounted three-stage membrane high-risk wastewater treatment equipment, and can also be configured independently when the vehicle-mounted three-stage membrane high-risk wastewater treatment equipment is used.
In the present application, the first-stage membrane module 10 is a ceramic membrane filtration system, and is composed of at least one ceramic membrane; the second-stage membrane module 20 is a UF membrane filtration system and is composed of at least one UF membrane; the third-stage membrane module 30 is an RO membrane filtration system, and is composed of at least one RO membrane.
The ceramic membrane is a CM membrane for short, and is an asymmetric membrane formed by an inorganic ceramic material through a special process, the aperture specification of the asymmetric membrane is usually 0.8 nm-1 mu m, and the ceramic membrane has the advantages of high separation efficiency, stable effect, good chemical stability, acid and alkali resistance, organic solvent resistance, bacteria resistance, high temperature resistance, pollution resistance, high mechanical strength, good regeneration performance, simple separation process, low energy consumption, simple and convenient operation and maintenance, long service life and the like. The UF membrane is also called as UF ultrafiltration membrane, the aperture of the UF membrane is usually 0.001-0.02 μm, the UF membrane uses pressure difference to drive the membrane separation process, and the solution in the raw material passes through the membrane element under high pressure to achieve the purposes of concentration separation and solution purification. The pore diameter of the RO membrane, also called reverse osmosis membrane, is usually 0.0001 μm, only water molecules and part of mineral ions can pass through the RO membrane, and other impurities and heavy metals are retained and discharged.
In the present application, the water flux of the first stage membrane module 10 is greater than that of the second stage membrane module 20, and the water flux of the second stage membrane module 20 is greater than that of the third stage membrane module 30. In specific implementation, the ratio of the water flux of the first-stage membrane module 10 to the water flux of the second-stage membrane module 20 is preferably set to be 1.5: 1; the ratio of the water flux of the second-stage membrane module 20 to the water flux of the third-stage membrane module 30 is preferably set to 1.5: 1. the number of ceramic membranes in the first-stage membrane module 10, the number of UF membranes in the second-stage membrane module 20, and the number of RO membranes in the third-stage membrane module 30 are specifically set according to the water flux of a single membrane element, and as shown in fig. 2, when the number of membrane elements constituting a membrane module is set to be plural, the plural membrane elements are arranged in parallel.
Referring to fig. 2 to 4, the direction of the arrows in fig. 2 to 4 is the water flow direction.
The first-stage membrane module 10 is provided with a first wastewater inlet 11, a first filtrate outlet 12 and a first concentrate outlet 13. The first wastewater inlet 11 is communicated with a high-risk wastewater supply device 91 through a water supply pipe 41, so that high-risk wastewater enters the first-stage membrane module 10. The first filtrate outlet 12 is used for discharging the first filtrate filtered by the first-stage membrane module 10, and the first filtrate outlet 12 is communicated with a first filtrate outlet pipe 42. The first concentrated solution outlet 13 is used for discharging the retained first concentrated solution after being filtered by the first-stage membrane module 10, and the first concentrated solution outlet 13 is communicated with a first concentrated solution outlet pipe 43.
The second-stage membrane module 20 is provided with a second wastewater inlet 21, a second filtrate outlet 22 and a second concentrate outlet 23. The second wastewater inlet 21 is communicated with the first filtrate outlet 12 through a first filtrate outlet pipe 42, so that the first filtrate filtered by the first-stage membrane module 10 enters the second-stage membrane module 20. The second filtrate outlet 22 is used for discharging the second filtrate filtered by the second-stage membrane module 20, and the second filtrate outlet 22 is communicated with a second filtrate outlet pipe 44. The second concentrated solution outlet 23 is used for discharging the second concentrated solution retained after being filtered by the second-stage membrane module 20, and the second concentrated solution outlet 23 is communicated with a second concentrated solution outlet pipe 45.
The third-stage membrane module 30 is provided with a third waste water inlet 31, a third filtrate outlet 32 and a third concentrated solution outlet 33. The third waste water inlet 31 is communicated with the second filtrate outlet 22 through a second filtrate outlet pipe 44, so that the second filtrate passing through the second-stage membrane module 20 enters the third-stage membrane module 30. The third filtrate outlet 32 is used for discharging the third filtrate filtered by the third stage membrane module 30, the third filtrate outlet 32 is communicated with a third filtrate outlet pipe 46, and the third filtrate outlet pipe 46 is communicated with a filtrate recovery device 92. The third concentrated solution outlet 33 is used for discharging the third concentrated solution intercepted after being filtered by the third-stage membrane module 30, and the third concentrated solution outlet 33 is communicated with a third concentrated solution outlet pipe 47.
In order to more effectively realize the overall filtering quality of the high-risk wastewater and reduce the final recovery amount of the concentrated solution, the tertiary membrane unit 100 further includes a first water return component, a second water return component and a third water return component, which are arranged in one-to-one correspondence with the first-stage membrane component 10, the second-stage membrane component 20 and the third-stage membrane component 30.
The first water return assembly includes a first water return pipe 51 and a first water return driving mechanism. The first return pipe 51 is communicated with the first concentrated solution outlet 13 and the first wastewater inlet 11, the first return driving mechanism is configured to drive the first concentrated solution to circularly flow between the first return pipe 51 and the first-stage membrane module 10, and the first return driving mechanism is preferably configured as a circulating pump.
The second water return component comprises a second water return pipe 52 and a second water return driving mechanism. The second water return pipe 52 is communicated with the second concentrated solution outlet 23 and the first wastewater inlet 11, the second water return driving mechanism is used for driving the second concentrated solution to circularly flow between the second water return pipe 52 and the first-stage membrane module 10, and the second water return driving mechanism is preferably set as a circulating pump.
The third water return component comprises a third water return pipe 53 and a third water return driving mechanism. The third water return pipe 53 is communicated with the third concentrated solution outlet 33 and the second wastewater inlet 21, and the third water return driving mechanism is used for driving the third concentrated solution to circularly flow between the third water return pipe 53 and the second-stage membrane module 20. The third water return driving mechanism is preferably set as a circulating pump.
In the drawings of the present application, for convenience of distinguishing, the first water return pipe 51, the second water return pipe 52, and the third water return pipe 53 are all indicated by dotted lines.
In this embodiment, the first water return pipe 51 and the first concentrated solution outlet pipe 43 are both communicated with the first concentrated solution outlet 13, the first diverter valve 61 is disposed at a position where the first water return pipe 51 and the first concentrated solution outlet pipe 43 intersect with each other in the three-stage membrane unit 100, and the first diverter valve 61 is used for controlling the first concentrated solution outlet 13 to be communicated with the first water return pipe 51 or the first concentrated solution outlet pipe 43.
The second water return pipe 52 and the second concentrated solution outlet pipe 45 are both communicated with the second concentrated solution outlet pipe 23, the third-stage membrane unit 100 is provided with a second flow dividing valve 62 at the intersection position of the second water return pipe 52 and the second concentrated solution outlet pipe 45, and the second flow dividing valve 62 is used for controlling the second concentrated solution outlet pipe 23 to be communicated with the second water return pipe 52 or the second concentrated solution outlet pipe 45.
The third water return pipe 53 and the third concentrated solution outlet pipe 47 are both communicated with the third concentrated solution outlet pipe 33, a third diverter valve 63 is arranged at the position where the third water return pipe 53 and the third concentrated solution outlet pipe 47 intersect in the third-stage membrane unit 100, and the third diverter valve 63 is used for controlling the third concentrated solution outlet pipe 33 to be communicated with the third water return pipe 53 or the third concentrated solution outlet pipe 47.
In operation, the first diverter valve 61 controls the first concentrated solution outlet 13 to communicate with the first return pipe 51 to realize repeated filtration of the first concentrated solution; the second flow dividing valve 62 controls the second concentrated solution outlet 23 to be communicated with the second water return pipe 52 so as to realize repeated filtration of the second concentrated solution; the third flow dividing valve 63 controls the third concentrated solution outlet 33 to be communicated with a third water return pipe 53 so as to realize the repeated filtration of the third concentrated solution; when the first concentrated solution, the second concentrated solution and the third concentrated solution respectively reach a super-concentrated state that the first concentrated solution, the second concentrated solution and the third concentrated solution cannot be filtered again after being filtered repeatedly for many times, the first diverter valve 61 controls the first concentrated solution water outlet 13 to be communicated with the first concentrated solution water outlet pipe 43 so that the first concentrated solution in a final state is discharged, the second diverter valve 62 controls the second concentrated solution water outlet 23 to be communicated with the second concentrated solution water outlet pipe 45 so that the second concentrated solution in the final state is discharged, and the third diverter valve 63 controls the third concentrated solution water outlet 33 to be communicated with the third concentrated solution water outlet pipe 47 so that the third concentrated solution in the final state is discharged.
In this application, first concentrate delivery port 13, second concentrate delivery port 23 and third concentrate delivery port 33 communicate concentrate recovery unit 93 through first concentrate outlet pipe 43, second concentrate outlet pipe 45 and third concentrate outlet pipe 47 respectively, concentrate recovery unit 93 is used for retrieving the first concentrate, second concentrate and the third concentrate of holding final condition. The concentrated solution recovery device 93 can be carried by the vehicle-mounted three-stage membrane high-risk wastewater treatment equipment; of course, the concentrated solution recycling device 93 can also be configured independently when the vehicle-mounted three-stage membrane high-risk wastewater treatment equipment is used.
As shown in fig. 4, in a specific implementation, the first-stage membrane module 10 may also be directly provided with a first concentrated solution recycling tank 71 communicated with the first concentrated solution outlet pipe 43, the first water returning module is directly communicated with the first concentrated solution recycling tank 71 and the first wastewater inlet 11, the first concentrated solution intercepted by the first-stage membrane module 10 enters the first concentrated solution recycling tank 71 through the first concentrated solution outlet pipe 43, the first concentrated solution in the first concentrated solution recycling tank 71 enters the first-stage membrane module 10 through the first water returning module for secondary filtration, and the above-mentioned process is repeated, so as to realize the cyclic filtration of the first concentrated solution.
Similarly, the second-stage membrane module 20 may also be directly provided with a second concentrated solution recycling tank 72 communicated with the second concentrated solution outlet pipe 45, and the second water returning module is directly communicated with the second concentrated solution recycling tank 72 and the first wastewater inlet 11, so as to realize the circulating filtration of the second concentrated solution. The third-stage membrane module 30 may also be directly provided with a third concentrated solution recovery tank 73 communicated with the third concentrated solution outlet pipe 47, and the third water return module is directly communicated with the third concentrated solution recovery tank 73 and the second wastewater inlet 21, so as to realize the circulating filtration of the third concentrated solution.
When the concentrated solutions in the first concentrated solution recovery tank 71, the second concentrated solution recovery tank 72 and the third concentrated solution recovery tank 73 reach the final super-concentrated state, the first water return component, the second water return component and the third water return component which are correspondingly communicated with the concentrated solutions stop working.
Referring to fig. 3 and 4, the vehicle-mounted three-stage membrane high-risk wastewater treatment equipment further includes a CIP cleaning unit, and the CIP cleaning unit includes a first CIP cleaning mechanism 81, a second CIP cleaning mechanism 82, and a third CIP cleaning mechanism 83. The first CIP cleaning mechanism 81 is communicated with the first-stage membrane module 10 to clean the first-stage membrane module 10, the second CIP cleaning mechanism 82 is communicated with the second-stage membrane module 20 to clean the second-stage membrane module 20, and the third CIP cleaning mechanism 83 is communicated with the third-stage membrane module 30 to clean the third-stage membrane module 30.
The wastewater inlet ends of the first CIP cleaning mechanism 81, the second CIP cleaning mechanism 82 and the third CIP cleaning mechanism 83 are connected to a cleaning water supply device 94, and the water outlet ends thereof are connected to a cleaning wastewater recovery device 95. The cleaning water supply device 94 is used for supplying cleaning water to the first CIP cleaning mechanism 81, the second CIP cleaning mechanism 82 and the third CIP cleaning mechanism 83, and the cleaning wastewater recovery device 95 is used for recovering the cleaning wastewater discharged after the first CIP cleaning mechanism 81, the second CIP cleaning mechanism 82 and the third CIP cleaning mechanism 83 clean the first stage membrane module 10, the second stage membrane module 20 and the third stage membrane module 30. The washing water supply device 94 may be provided for the vehicle-mounted three-stage membrane high-risk wastewater treatment apparatus itself, or may be separately provided for the vehicle-mounted three-stage membrane high-risk wastewater treatment apparatus. Similarly, the cleaning wastewater recovery device 95 may be a self-contained vehicle-mounted three-stage membrane high-risk wastewater treatment device, or may be configured independently when the vehicle-mounted three-stage membrane high-risk wastewater treatment device is used.
In this embodiment, the first CIP cleaning mechanism 81 is provided with a first cleaning waste water discharge port 811, and the first cleaning waste water discharge port 811 is used to discharge first cleaning waste water formed after cleaning the first-stage membrane module 10. The second CIP cleaning mechanism 82 is provided with a second cleaning wastewater discharge port 821, and the second cleaning wastewater discharge port 821 is used for discharging second cleaning wastewater formed after the second-stage membrane module 20 is cleaned. The third CIP cleaning mechanism 83 is provided with a third cleaning wastewater discharge outlet 831, and the third cleaning wastewater discharge outlet 831 is configured to discharge third cleaning wastewater formed after cleaning the third-stage membrane module 30.
The first cleaning wastewater discharge port 811, the second cleaning wastewater discharge port 821 and the third cleaning wastewater discharge port 831 are all communicated with the cleaning wastewater recovery device 95, and the cleaning wastewater recovery device 95 is communicated with the first wastewater inlet 11, so that the first cleaning wastewater, the second cleaning wastewater and the third cleaning wastewater are filtered.
In another embodiment, the first, second, and third waste water discharge ports 811, 821, and 831 may be directly connected to the first waste water inlet 11 without passing through the cleaning waste water collecting device 95.
According to the vehicle-mounted three-stage membrane high-risk wastewater treatment equipment, the three-stage membrane unit 100 consisting of the ceramic membrane, the UF membrane and the RO membrane is arranged, so that multiple filtration step by step is realized, the separation process is compact, the separation efficiency is high, and the effect is good; by arranging the first water return assembly, the second water return assembly and the third water return assembly, the filtering quality is further improved, and the recovery amount of the concentrated solution is reduced; meanwhile, the first CIP cleaning mechanism 81, the second CIP cleaning mechanism 82 and the third CIP cleaning mechanism 83 are arranged in a matched mode, timely and effective cleaning of the three-stage membrane unit 100 is achieved, and the filtering quality and the filtering effect of the three-stage membrane unit 100 are further effectively improved.
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is a more detailed description of the present application in connection with specific embodiments thereof, and it is not intended that the present application be limited to the specific embodiments thereof. It will be apparent to those skilled in the art from this disclosure that many more simple derivations or substitutions can be made without departing from the spirit of the disclosure.
Claims (10)
1. The utility model provides a tertiary membrane high-risk effluent treatment plant of vehicular, its characterized in that, includes tertiary membrane unit, tertiary membrane unit includes:
the first-stage membrane module, the second-stage membrane module and the third-stage membrane module are sequentially connected in series;
the three-stage membrane unit is provided with a wastewater inlet end arranged at the first-stage membrane component and a filtrate outlet end arranged at the third-stage membrane component;
the first-stage membrane module is composed of at least one ceramic membrane; the second-stage membrane module is composed of at least one UF membrane; the third stage membrane module is composed of at least one RO membrane.
2. The vehicle-mounted three-stage membrane high-risk wastewater treatment equipment according to claim 1, wherein the water flux of the first-stage membrane module is larger than that of the second-stage membrane module, and the water flux of the second-stage membrane module is larger than that of the third-stage membrane module.
3. The vehicle-mounted three-stage membrane high-risk wastewater treatment equipment according to claim 2, wherein the water flux ratio of the first-stage membrane module to the second-stage membrane module is 1.5: 1.
4. the vehicle-mounted three-stage membrane high-risk wastewater treatment equipment according to claim 2, wherein the water flux ratio of the second-stage membrane module to the third-stage membrane module is 1.5: 1.
5. the vehicle-mounted three-stage membrane high-risk wastewater treatment equipment according to claim 1, wherein the first-stage membrane module is provided with a first wastewater inlet, a first filtrate outlet and a first concentrate outlet;
the second-stage membrane assembly is provided with a second wastewater inlet, a second filtrate outlet and a second concentrated solution outlet;
the third-stage membrane component is provided with a third waste water inlet, a third filtrate outlet and a third concentrated solution outlet;
the second wastewater inlet is communicated with the first filtrate outlet; and the third waste water inlet is communicated with the second filtrate outlet.
6. The vehicle-mounted three-stage membrane high-risk wastewater treatment equipment according to claim 5, wherein the three-stage membrane unit further comprises a first water return component, a second water return component and a third water return component which are arranged in one-to-one correspondence with the first-stage membrane component, the second-stage membrane component and the third-stage membrane component;
the first backwater assembly comprises:
the first water return pipe is communicated with the first concentrated solution outlet and the first wastewater inlet; and
the first water return driving mechanism is used for driving the first concentrated solution to circularly flow between the first water return pipe and the first-stage membrane assembly;
the second water return assembly comprises:
the second water return pipe is communicated with the second concentrated solution outlet and the first wastewater inlet; and
the second water return driving mechanism is used for driving the second concentrated solution to circularly flow between the second water return pipe and the first-stage membrane component;
the third return water assembly comprises:
a third water return pipe for communicating the third concentrated solution outlet with the second wastewater inlet; and
and the third water return driving mechanism is used for driving the third concentrated solution to circularly flow between the third water return pipe and the second-stage membrane component.
7. The vehicle-mounted three-stage membrane high-risk wastewater treatment device according to claim 6, wherein the three-stage membrane unit further comprises:
the first concentrated solution outlet pipe is communicated with the first concentrated solution outlet;
the second concentrated solution outlet pipe is communicated with the second concentrated solution outlet;
a third concentrated solution outlet pipe communicated with the third concentrated solution outlet;
the first flow dividing valve controls the first concentrated solution water outlet to be communicated with the first water return pipe or the first concentrated solution water outlet pipe;
the second flow dividing valve controls the second concentrated solution water outlet to be communicated with a second water return pipe or a second concentrated solution water outlet pipe; and
and the third flow dividing valve controls the third concentrated solution water outlet to be communicated with a third water return pipe or a third concentrated solution water outlet pipe.
8. The vehicle-mounted three-stage membrane high-risk wastewater treatment device according to claim 5, further comprising a CIP cleaning unit, wherein the CIP cleaning unit comprises:
the first CIP cleaning mechanism is communicated with the first-stage membrane component;
the second CIP cleaning mechanism is communicated with the second-stage membrane component; and
and the third CIP cleaning mechanism is communicated with the third-stage membrane module.
9. The vehicle-mounted three-stage membrane high-risk wastewater treatment device according to claim 8, wherein the first CIP cleaning mechanism is provided with a first cleaning wastewater discharge port; the second CIP cleaning mechanism is provided with a second cleaning wastewater outlet; the third CIP cleaning mechanism is provided with a third cleaning wastewater outlet; the first cleaning wastewater discharge port, the second cleaning wastewater discharge port and the third cleaning wastewater discharge port are communicated with the first wastewater inlet.
10. The vehicle-mounted three-stage membrane high-risk wastewater treatment device according to any one of claims 1 to 9, further comprising:
a transportation device provided with wheels; and
the box body is fixedly arranged on the transportation device;
the three-stage membrane unit is arranged in the box body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021962326.XU CN213569634U (en) | 2020-09-09 | 2020-09-09 | Vehicle-mounted three-stage membrane high-risk wastewater treatment equipment |
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| CN202021962326.XU CN213569634U (en) | 2020-09-09 | 2020-09-09 | Vehicle-mounted three-stage membrane high-risk wastewater treatment equipment |
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| CN213569634U true CN213569634U (en) | 2021-06-29 |
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| CN202021962326.XU Active CN213569634U (en) | 2020-09-09 | 2020-09-09 | Vehicle-mounted three-stage membrane high-risk wastewater treatment equipment |
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