CN216584307U - Contain concentrated recovery system of salt waste water - Google Patents

Contain concentrated recovery system of salt waste water Download PDF

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Publication number
CN216584307U
CN216584307U CN202122384095.XU CN202122384095U CN216584307U CN 216584307 U CN216584307 U CN 216584307U CN 202122384095 U CN202122384095 U CN 202122384095U CN 216584307 U CN216584307 U CN 216584307U
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reverse osmosis
osmosis module
module
recovery system
salt
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唐晓坤
张小青
胡龙华
陈延
刘华
王成
杨杰
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Sichuan Huajia Energy Saving Equipment Technology Co ltd
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Sichuan Huajia Energy Saving Equipment Technology Co ltd
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Abstract

The utility model discloses a salt-containing wastewater concentration and recovery system, and relates to the technical field of sewage treatment; the adopted technical scheme is as follows: a saline wastewater concentration and recovery system comprises an ultrafiltration module, a first reverse osmosis module and a second reverse osmosis module; the concentrated water outlet end of the ultrafiltration module is used for being connected with the front-end pretreatment device, and the clear water outlet end of the ultrafiltration module is connected with the water inlet end of the first reverse osmosis module; the clear water outlet end of the first reverse osmosis module is connected with the clear water recovery system, and the concentrated water outlet end of the first reverse osmosis module is connected with the water inlet end of the second reverse osmosis module; the clear water outlet end of the second reverse osmosis module is connected with the water inlet end of the first reverse osmosis module, and the concentrated water outlet end of the second reverse osmosis module is connected with the salinity recovery device. The utility model can respectively recycle the clear water and the salt water in the salt-containing wastewater, thereby avoiding resource waste, simultaneously adding no medicament in the recycling process, not generating solid waste and reducing the treatment cost of the salt-containing wastewater.

Description

Contain concentrated recovery system of salt waste water
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to a salt-containing wastewater concentration and recovery system.
Background
Some salt-containing wastewater is inevitably generated in the chemical production process, and the high salt content in the wastewater can cause adverse effects on the environment, so that the wastewater generated in the chemical production can meet the requirements of the national environmental protection standard after being treated. The salt in the chemical wastewater is a raw material or a product produced by an enterprise, and if the salt is directly discharged along with the wastewater, the production cost of the enterprise is increased, and resources are wasted. In the conventional salt-containing wastewater treatment process, an agent reacting with salt is generally added to wastewater to separate salt from water, but the wastewater treatment cost is increased and solid waste is generated.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problem that a medicament needs to be added when the existing chemical salt-containing wastewater is recycled; the utility model provides a salt-containing wastewater concentration and recovery system which can recycle clean water and salt water in salt-containing wastewater respectively, so that resource waste is avoided, no medicament is required to be added in the recovery process, no solid waste is generated, and the treatment cost of the salt-containing wastewater is reduced.
The utility model is realized by the following technical scheme:
a saline wastewater concentration and recovery system comprises an ultrafiltration module, a first reverse osmosis module and a second reverse osmosis module; the concentrated water outlet end of the ultrafiltration module is used for being connected with the front-end pretreatment device, and the clear water outlet end of the ultrafiltration module is connected with the water inlet end of the first reverse osmosis module; the clear water outlet end of the first reverse osmosis module is connected with the clear water recovery system, and the concentrated water outlet end of the first reverse osmosis module is connected with the water inlet end of the second reverse osmosis module; the clear water outlet end of the second reverse osmosis module is connected with the water inlet end of the first reverse osmosis module, and the concentrated water outlet end of the second reverse osmosis module is connected with a salinity recovery device.
When the salt-containing wastewater concentration and recovery system provided by the utility model is used, the salt-containing wastewater subjected to pretreatment to remove precipitates is connected into the ultrafiltration module, under the selective filtration action of the ultrafiltration module, clear water enters the first reverse osmosis module through the ultrafiltration membrane, impurities which cannot penetrate through the ultrafiltration membrane return to the front-end pretreatment device along with concentrated water for treatment, the clear water entering the first reverse osmosis module is connected into the clear water recovery system for recycling under the action of the reverse osmosis membrane, and salt cannot penetrate through the reverse osmosis membrane and enters the second reverse osmosis module along with the concentrated water. The concentrated water of first reverse osmosis module output can improve the concentration of concentrated water under the effect of the reverse osmosis membrane of second reverse osmosis module to make the salt concentration in the concentrated water reach the recovery standard, thereby send into the recovery unit of salinity and carry out the recovery of salinity, and the clear water that second reverse osmosis module filtered out then sends back first reverse osmosis module in order to supply the clear water to first reverse osmosis module.
Therefore, the system for concentrating and recycling the salt-containing wastewater can recycle the clean water and the salt water in the salt-containing wastewater respectively, so that resource waste is avoided, and meanwhile, only filtration separation and concentration are adopted in the recycling process, so that no medicament is required to be added, no solid waste is generated, and the treatment cost of the salt-containing wastewater is reduced.
In an optional embodiment, a first storage container is connected between the ultrafiltration module and the first reverse osmosis module, so that the first storage container temporarily stores the clean water (containing salt) output by the ultrafiltration module, and the first reverse osmosis module is prevented from being overloaded.
In an alternative embodiment, a first priming pump is connected between the first storage container and the first reverse osmosis module to feed water stored in the first storage container to the first reverse osmosis module, thereby ensuring continuous operation of the first reverse osmosis module.
In an optional embodiment, a second storage container is connected between the first reverse osmosis module and the second reverse osmosis module, so that concentrated water (containing salt) output by the first reverse osmosis module is temporarily stored in the second storage container, and the second reverse osmosis module is prevented from being overloaded.
In an optional embodiment, a second charging pump is connected between the second storage container and the second reverse osmosis module so as to feed water stored in the second storage container into the second reverse osmosis module, and ensure that the second reverse osmosis module can continuously work.
In an optional embodiment, a water inlet pump is connected to the water inlet end of the ultrafiltration module so as to feed the precipitation-pretreated salt-containing water into the ultrafiltration module.
In an alternative embodiment, the ultrafiltration module comprises a plurality of ultrafilters connected in parallel to ensure that the ultrafiltration module has a sufficient treatment flow.
In an alternative embodiment, the first reverse osmosis module comprises a plurality of reverse osmosis filters in series to ensure that the first reverse osmosis module has a sufficient concentration rate.
In an alternative embodiment, the second reverse osmosis module comprises a plurality of reverse osmosis filters in series to ensure that the second reverse osmosis module has a sufficient concentration rate.
The utility model has the following beneficial effects:
the salt-containing wastewater concentration and recovery system provided by the utility model has the advantages that impurities and partial wastewater in the wastewater are sent back to the pretreatment device through the ultrafiltration module, salt-containing water penetrating through the ultrafiltration membrane enters the first reverse osmosis module for primary concentration, clean water filtered out again by the first reverse osmosis module is connected to the clean water recovery system for recycling, concentrated water after primary concentration enters the second reverse osmosis module, the concentration of the concentrated water is improved by the second reverse osmosis module, so that the salt-containing concentration in the concentrated water reaches the recovery standard, the salt is recovered by sending the concentrated water to the salt recovery device, and the filtered clean water is sent back to the first reverse osmosis module to supplement the clean water to the first reverse osmosis module, so that the salt-containing wastewater concentration and recovery system provided by the utility model can recycle the clean water and the salt water in the salt-containing wastewater respectively, the waste of resources is avoided, and only filtration separation and concentration are adopted in the recovery process, no chemical agent is needed to be added, no solid waste is generated, and the treatment cost of the salt-containing wastewater is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic diagram of a pipeline of a saline wastewater concentration system according to an embodiment of the utility model.
Reference numerals:
1-an ultrafiltration module, 2-a first reverse osmosis module, 3-a second reverse osmosis module, 4-a first storage container, 5-a first liquid adding pump, 6-a second storage container, 7-a second liquid adding pump and 8-a water inlet pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the embodiments of the present application, the terms "central," "upper," "lower," "left," "right," "vertical," "longitudinal," "lateral," "horizontal," "inner," "outer," "front," "rear," "top," "bottom," and the like refer to orientations or positional relationships that are conventionally used in the manufacture of the present application, or that are routinely understood by those of ordinary skill in the art, but are merely used to facilitate the description and to simplify the description and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting of the present application.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "open," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Examples
With reference to fig. 1, the present embodiment provides a saline wastewater concentration and recovery system, which includes an ultrafiltration module 1, a first reverse osmosis module 2 and a second reverse osmosis module 3; the concentrated water outlet end of the ultrafiltration module 1 is used for being connected with a front-end pretreatment device, and the clear water outlet end of the ultrafiltration module 1 is connected with the water inlet end of the first reverse osmosis module 2; the clear water outlet end of the first reverse osmosis module 2 is used for being connected with a clear water recovery system, and the concentrated water outlet end of the first reverse osmosis module 2 is connected with the water inlet end of the second reverse osmosis module 3; the clear water outlet end of the second reverse osmosis module 3 is connected with the water inlet end of the first reverse osmosis module 2, and the concentrated water outlet end of the second reverse osmosis module 3 is connected with a salinity recovery device.
It should be understood that a water inlet pump 8 is connected to the water inlet end of the ultrafiltration module 1 so as to feed the precipitation-pretreated salt-containing water into the ultrafiltration module 1.
In this embodiment, the ultrafiltration module 1 comprises a plurality of ultrafilters connected in parallel to ensure that the ultrafiltration module 1 has a sufficient treatment flow.
In addition, the first reverse osmosis module 2 comprises a plurality of reverse osmosis filters in series to ensure a sufficient concentration rate of the first reverse osmosis module 2.
Likewise, the second reverse osmosis module 3 comprises a plurality of reverse osmosis filters in series to ensure a sufficient concentration rate of the second reverse osmosis module 3.
With continued reference to fig. 1, a first storage container 4 is connected between the ultrafiltration module 1 and the first reverse osmosis module 2, so that the first storage container 4 temporarily stores the fresh water (containing salt) output by the ultrafiltration module 1, and the first reverse osmosis module 2 is prevented from being overloaded.
Preferably, a first priming pump 5 is connected between the first storage container 4 and the first reverse osmosis module 2 so as to feed water stored in the first storage container 4 into the first reverse osmosis module 2, thereby ensuring that the first reverse osmosis module 2 can continuously operate.
Further, be connected with second storage container 6 between first reverse osmosis module 2 and the second reverse osmosis module 3 to through the thick water (contain salt) of second storage container 6 output of the first reverse osmosis module 2 of temporary storage, prevent that second reverse osmosis module 3 from loading too greatly.
Preferably, a second charge pump 7 is connected between the second storage container 6 and the second reverse osmosis module 3, so that water stored in the second storage container can be fed into the second reverse osmosis module 3, and the second reverse osmosis module 3 can be continuously operated.
The concentrated recovery system of salt waste water that this embodiment provided is when using, connects intake pump 8 between precipitation preprocessing device and ultrafiltration module 1, links to each other ultrafiltration module 1 waste water play water end with precipitation preprocessing device, links to each other first reverse osmosis module 2 clear water play water end with clear water recovery system, links to each other second reverse osmosis module 3 dense water play water end with salinity recovery unit.
The salt-containing wastewater subjected to pretreatment and sediment removal is connected into the ultrafiltration module 1 through the water inlet pump 8, impurities incapable of permeating the ultrafiltration membrane return to the front-end pretreatment device for treatment along with ultrafiltration concentrated water under the selective filtration action of the ultrafiltration module 1, ultrafiltration clear water permeates the ultrafiltration membrane and flows into the first storage container 4 for storage, and water in the first storage container 4 is sent into the first reverse osmosis module 2 in the first reverse osmosis module 2 through the first liquid adding pump 5.
The first-level clear water that gets into first reverse osmosis module 2 is filtered off once more and is inserted clean water recovery system and carry out recycle under reverse osmosis membrane's effect, and the salt can not permeate reverse osmosis membrane and go into second storage container 6 along with the one-level dense water and save, sends into second reverse osmosis module 3 by second liquid feeding pump 7 with the water in the second storage container 6 again.
The concentration that the one-level dense water of first reverse osmosis module 2 output can improve the dense water of second grade obtains the dense water of second grade under the effect of the reverse osmosis membrane of second reverse osmosis module 3 to salt concentration in the dense water of messenger second grade reaches the recovery standard, thereby sends into the recovery that the salinity recovery unit carried out the salinity, and the second grade clear water that second reverse osmosis module 3 crossed the filtration then sends back first reverse osmosis module 2 in order to supply the clear water to first reverse osmosis module 2.
Therefore, the concentrated recovery system of salt waste water that this embodiment provided can be with clear water and salt solution recycle respectively in the salt waste water, avoids extravagant resource, only adopts filtering separation and concentration at the in-process of retrieving simultaneously, need not add the medicament, can not produce solid waste, has reduced the treatment cost of salt waste water.
The foregoing is only a preferred embodiment of the present invention, and the present invention is not limited thereto in any way, and any simple modification, equivalent replacement and improvement made to the above embodiment within the spirit and principle of the present invention still fall within the protection scope of the present invention.

Claims (9)

1. The saline wastewater concentration and recovery system is characterized by comprising an ultrafiltration module (1), a first reverse osmosis module (2) and a second reverse osmosis module (3);
the concentrated water outlet end of the ultrafiltration module (1) is used for being connected with a front-end pretreatment device, and the clear water outlet end of the ultrafiltration module (1) is connected with the water inlet end of the first reverse osmosis module (2);
the clear water outlet end of the first reverse osmosis module (2) is connected with a clear water recovery system, and the concentrated water outlet end of the first reverse osmosis module (2) is connected with the water inlet end of the second reverse osmosis module (3);
the clear water outlet end of the second reverse osmosis module (3) is connected with the water inlet end of the first reverse osmosis module (2), and the concentrated water outlet end of the second reverse osmosis module (3) is connected with a salinity recovery device.
2. The brine waste concentration recovery system according to claim 1, wherein a first storage container (4) is connected between the ultrafiltration module (1) and the first reverse osmosis module (2).
3. The brine waste concentration and recovery system according to claim 2, wherein a first charging pump (5) is connected between said first storage vessel (4) and said first reverse osmosis module (2).
4. The brine waste concentration recovery system according to claim 1, wherein a second storage vessel (6) is connected between said first reverse osmosis module (2) and said second reverse osmosis module (3).
5. The brine waste concentration and recovery system according to claim 4, wherein a second charging pump (7) is connected between said second storage vessel (6) and said second reverse osmosis module (3).
6. The brine wastewater concentration and recovery system according to claim 1, wherein the water inlet end of the ultrafiltration module (1) is connected with a water inlet pump (8).
7. The brine waste concentration recovery system according to any one of claims 1 to 6, wherein said ultrafiltration module (1) comprises a plurality of parallel ultrafilters.
8. The brine waste concentration recovery system according to claim 7, wherein said first reverse osmosis module (2) comprises a plurality of reverse osmosis filters in series.
9. The brine waste concentration recovery system according to claim 8, wherein said second reverse osmosis module (3) comprises a plurality of reverse osmosis filters in series.
CN202122384095.XU 2021-09-29 2021-09-29 Contain concentrated recovery system of salt waste water Active CN216584307U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122384095.XU CN216584307U (en) 2021-09-29 2021-09-29 Contain concentrated recovery system of salt waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122384095.XU CN216584307U (en) 2021-09-29 2021-09-29 Contain concentrated recovery system of salt waste water

Publications (1)

Publication Number Publication Date
CN216584307U true CN216584307U (en) 2022-05-24

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Application Number Title Priority Date Filing Date
CN202122384095.XU Active CN216584307U (en) 2021-09-29 2021-09-29 Contain concentrated recovery system of salt waste water

Country Status (1)

Country Link
CN (1) CN216584307U (en)

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