CN219991249U - Wastewater treatment device based on reverse osmosis membrane - Google Patents
Wastewater treatment device based on reverse osmosis membrane Download PDFInfo
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- CN219991249U CN219991249U CN202321258208.4U CN202321258208U CN219991249U CN 219991249 U CN219991249 U CN 219991249U CN 202321258208 U CN202321258208 U CN 202321258208U CN 219991249 U CN219991249 U CN 219991249U
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- reverse osmosis
- osmosis membrane
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- wastewater treatment
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- 239000012528 membrane Substances 0.000 title claims abstract description 87
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 82
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000013505 freshwater Substances 0.000 claims abstract description 29
- 238000004062 sedimentation Methods 0.000 claims abstract description 17
- 238000001179 sorption measurement Methods 0.000 claims abstract description 16
- 238000001556 precipitation Methods 0.000 claims description 16
- 239000013049 sediment Substances 0.000 claims description 12
- 239000012459 cleaning agent Substances 0.000 claims description 11
- 239000002351 wastewater Substances 0.000 claims description 11
- 239000003153 chemical reaction reagent Substances 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 20
- 150000002500 ions Chemical class 0.000 abstract description 20
- 238000001914 filtration Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 239000012141 concentrate Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The utility model provides a wastewater treatment device based on reverse osmosis membrane, relates to wastewater treatment technical field, including first order reverse osmosis membrane pipe and the second grade reverse osmosis membrane pipe that set up side by side, first order reverse osmosis membrane pipe and second grade reverse osmosis membrane pipe are equipped with dense water delivery port and fresh water delivery port respectively, and two dense water delivery ports are connected jointly on dense water pipe, are connected with the sedimentation tank on the dense water pipe, and the exit end of sedimentation tank is connected with activated carbon adsorption cylinder, and the exit end of activated carbon adsorption cylinder is linked together with the entrance point of second grade reverse osmosis membrane pipe through the back flow. The utility model solves the problems that in the prior art, under the high-pressure environment in the reverse osmosis membrane, the heavy metal ions are separated from the water molecules, and under the high-pressure environment, part of the heavy metal ions are easily discharged together with the filtered water through the reverse osmosis membrane, so that the filtering effect is poor.
Description
Technical Field
The utility model relates to the technical field of wastewater treatment, in particular to a wastewater treatment device based on a reverse osmosis membrane.
Background
At present, in the existing wastewater treatment process, a filtering membrane component formed by a filtering screen membrane is needed, the reverse osmosis membrane is an artificial semipermeable membrane with certain characteristics and made of a simulated biological semipermeable membrane, and is a core component of a reverse osmosis technology, the principle of the reverse osmosis technology is that under the action of higher than solution osmotic pressure, substances and water can not be separated from the semipermeable membrane according to the fact that the substances cannot permeate the semipermeable membrane, and the membrane aperture of the reverse osmosis membrane is very small, so that dissolved salts, colloid, microorganisms, organic matters and the like in water can be effectively removed.
The prior art discloses a patent with publication number CN216191271U, the proposal comprises a liquid storage tank and a purifying device arranged in the liquid storage tank, the purifying device comprises a reverse osmosis membrane and a rotating roller arranged at the bottom of the reverse osmosis membrane, the axis of the rotating roller is parallel to the reverse osmosis membrane, the surface of the rotating roller is radially provided with a pressurizing blade, and the surface of the pressurizing blade is provided with a filtering hole; through the multistage reverse osmosis membrane osmosis effect that overflows, play the effect of purifying step by step to waste water to simple structure realizes multistage high-efficient purification, and purifying cost is lower.
The prior devices, including the above patents, gradually expose the disadvantages of the technology with use, mainly in the following aspects:
first, under the environment of high pressure in reverse osmosis membrane, heavy metal ion and hydrone are separated to the sewage that contains heavy metal ion, lead to partly heavy metal ion to permeate reverse osmosis membrane and discharge together with the water of accomplishing under the environment of high pressure, lead to the filter effect poor.
Secondly, the fresh water content in the purified concentrated water is about twenty to thirty percent, the heavy metal ion content is extremely high, the concentrated water is directly discharged, and the heavy metal ion not only causes pollution to the environment, but also causes waste of water resources.
In summary, it is clear that the prior art has inconvenience and defects in practical use, so that improvement is needed.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model solves the problems that in the prior art, the sewage containing heavy metal ions is separated from water molecules under the high-pressure environment in the reverse osmosis membrane, and partial heavy metal ions are easily discharged together with filtered water through the reverse osmosis membrane under the high-pressure environment, so that the filtering effect is poor.
In order to solve the problems, the utility model provides the following technical scheme:
the wastewater treatment device based on the reverse osmosis membrane comprises a first-stage reverse osmosis membrane pipe and a second-stage reverse osmosis membrane pipe which are arranged in parallel, wherein the first-stage reverse osmosis membrane pipe and the second-stage reverse osmosis membrane pipe are respectively provided with a concentrated water outlet and a fresh water outlet, the two concentrated water outlets are commonly connected to the concentrated water pipe, a precipitation tank is connected to the concentrated water pipe, the outlet end of the precipitation tank is connected with an activated carbon adsorption cylinder, the outlet end of the activated carbon adsorption cylinder is communicated with the inlet end of the second-stage reverse osmosis membrane pipe through a return pipe,
the fresh water outlet of the first-stage reverse osmosis membrane pipe is communicated with the inlet end of the second-stage reverse osmosis membrane pipe through a communicating pipe.
As an optimized scheme, the inlet end of the first-stage reverse osmosis membrane pipe is connected with a first-stage booster pump, the inlet end of the first-stage booster pump is connected with a first three-way valve, and the other two ports of the first three-way valve are respectively connected with a waste water pipeline and a cleaning agent accommodating box.
As an optimized scheme, the inlet end of the secondary reverse osmosis membrane pipe is also connected with a secondary pressurizing pump in parallel, and the communicating pipe is communicated with the inlet end of the secondary pressurizing pump.
As an optimized scheme, a second three-way valve is connected between the sedimentation tank and the activated carbon adsorption cylinder, and the other port of the second three-way valve is connected with a cleaning liquid discharge pipe.
As an optimized scheme, a filter element is vertically fixedly connected in the settling tank, a pipe orifice communicated with the inner cavity of the filter element is fixedly connected at the lower end part of the settling tank, and the inlet end of the second three-way valve is connected with the pipe orifice.
As an optimized scheme, the upper end part of the sedimentation tank is provided with a reagent throwing valve pipe.
As an optimized scheme, the lower end part of the sedimentation tank is fixedly connected with a sediment discharge valve communicated with the inner cavity of the sedimentation tank.
As an optimized scheme, the return pipe is connected with a one-way valve.
As an optimized scheme, the fresh water outlet of the secondary reverse osmosis membrane pipe is connected with a fresh water outlet pipe.
Compared with the prior art, the utility model has the beneficial effects that:
the water inlet of the first-stage booster pump is connected with a first three-way valve, the first three-way valve is connected with a waste water pipeline, so that waste water is introduced into the first-stage reverse osmosis membrane pipe, under the pressurization of the first-stage booster pump, the efficiency of the waste water passing through the first-stage reverse osmosis membrane pipe can be improved, most heavy metal ions are filtered, the heavy metal ions and fresh water which escape in a small amount flow into the concentrated water pipe through a concentrated water outlet of the first-stage reverse osmosis membrane pipe, enter the second-stage booster pump through a communicating pipe to be filtered, the water pressure provided by the second-stage booster pump is smaller than the water pressure provided by the first-stage booster pump, heavy metal ions escaping from the first-stage reverse osmosis membrane pipe can be filtered, the function of improving the filtering effect is realized, the filtered fresh water is discharged and collected through a fresh water outlet pipe, and the residual concentrated water enters the concentrated water pipe through a concentrated water outlet of the second-stage reverse osmosis membrane pipe;
the upper end of the precipitation tank is provided with a reagent delivery valve pipe, after the concentrated water in the concentrated water pipe enters the precipitation tank, the reagent is added from the reagent delivery valve pipe, so that heavy metal ions in the concentrated water fully react to form precipitation, the reacted fresh water enters a second three-way valve through a filter element, at the moment, the second three-way valve enables the fresh water to flow to an activated carbon adsorption cylinder, the fresh water is adsorbed by the activated carbon adsorption cylinder, particulate matters flow to a water outlet of a second booster pump through a one-way valve, and the particulate matters enter a second reverse osmosis membrane pipe from the water outlet of the second booster pump for filtration, so that the functions of heavy metal ion precipitation treatment in the concentrated water and fresh water recovery are realized;
when the sediment is accumulated to a certain amount, a sediment discharge valve switch is opened, and the sediment is discharged through the sediment discharge valve;
the cleaning agent holds the case upper end and is equipped with the cleaning agent and puts in the mouth, and the first three-way valve other end is connected with the cleaning agent and holds the case, and the other end and the cleaning solution discharge tube of second three-way valve are connected, and when reverse osmosis membrane needs to wash, first three-way valve will adjust to the cleaning agent and hold case and one-level force (forcing) pump intercommunication, and the second three-way valve adjusts to back flow and cleaning solution discharge tube intercommunication.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a schematic structural view of the settling tank of the present utility model.
In the figure: 1-a first-stage reverse osmosis membrane tube; 2-a secondary reverse osmosis membrane tube; 3-a concentrated water pipe; 4-a precipitation tank; 5-a return pipe; 6-an activated carbon adsorption cylinder; 7-a second three-way valve; 8-a cleaning liquid discharge pipe; 9-a one-way valve; 10-a first-stage booster pump; 11-a first three-way valve; 12-a detergent accommodating box; 13-a waste water pipeline; 14-a secondary booster pump; 15-a fresh water outlet pipe; 16-a filter element; 17-sediment discharge valve; 18-communicating pipe.
Detailed Description
Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.
As shown in fig. 1 and 2, the wastewater treatment device based on reverse osmosis membrane comprises a first-stage reverse osmosis membrane pipe 1 and a second-stage reverse osmosis membrane pipe 2 which are arranged in parallel, wherein the first-stage reverse osmosis membrane pipe 1 and the second-stage reverse osmosis membrane pipe 2 are respectively provided with a concentrated water outlet and a fresh water outlet, the two concentrated water outlets are jointly connected to a concentrated water pipe 3, a precipitation tank 4 is connected to the concentrated water pipe 3, the outlet end of the precipitation tank 4 is connected with an activated carbon adsorption cylinder 6, the outlet end of the activated carbon adsorption cylinder 6 is communicated with the inlet end of the second-stage reverse osmosis membrane pipe 2 through a return pipe 5,
the fresh water outlet of the first-stage reverse osmosis membrane pipe 1 is communicated with the inlet end of the second-stage reverse osmosis membrane pipe 2 through a communicating pipe 18.
The inlet end of the first-stage reverse osmosis membrane pipe 1 is connected with a first-stage booster pump 10, the inlet end of the first-stage booster pump 10 is connected with a first three-way valve 11, and the other two ends of the first three-way valve 11 are respectively connected with a waste water pipeline 13 and a cleaning agent accommodating box 12.
The inlet end of the second-stage reverse osmosis membrane pipe 2 is also connected with a second-stage booster pump 14 in parallel, and a communicating pipe 18 is communicated with the inlet end of the second-stage booster pump 14.
A second three-way valve 7 is connected between the precipitation tank 4 and the activated carbon adsorption cylinder 6, and the other port of the second three-way valve 7 is connected with a cleaning liquid discharge pipe 8.
The sedimentation tank 4 is vertically fixedly connected with a filter element 16, the lower end part of the sedimentation tank is fixedly connected with a pipe orifice communicated with the inner cavity of the filter element 16, and the inlet end of the second three-way valve 7 is connected with the pipe orifice.
The upper end of the sedimentation tank 4 is provided with a reagent delivery valve pipe.
The lower end of the sedimentation tank 4 is fixedly connected with a sediment discharge valve 17 communicated with the inner cavity of the sedimentation tank.
The return pipe 5 is connected with a check valve 9.
The fresh water outlet of the second-stage reverse osmosis membrane pipe 2 is connected with a fresh water outlet pipe 15.
The structures of the first-stage reverse osmosis membrane tube 1 and the second-stage reverse osmosis membrane tube 2 are common in daily life, and the specific structure is not an innovation of the scheme, so that a detailed description is omitted.
The working principle of the device is as follows:
the water inlet of the first-stage booster pump 10 is connected with the first three-way valve 11, the first three-way valve 11 is connected with the waste water pipeline 13, so that the waste water is introduced into the first-stage reverse osmosis membrane pipe 1, under the pressurization of the first-stage booster pump 10, the efficiency of the waste water passing through the first-stage reverse osmosis membrane pipe 1 can be improved, most heavy metal ions are filtered, the heavy metal ions flow into the concentrate pipe 3 through the concentrate water outlet of the first-stage reverse osmosis membrane pipe 1, a small amount of escaped heavy metal ions and fresh water enter the second-stage booster pump 14 through the communicating pipe 18, the water pressure provided by the second-stage booster pump 14 is smaller than the water pressure of the first-stage booster pump 10, the escaped heavy metal ions of the first-stage reverse osmosis membrane pipe 1 can be filtered, the function of improving the filtering effect is realized, the filtered fresh water is discharged and collected through the fresh water outlet pipe 15, and the residual concentrated water enters the concentrate pipe 3 through the concentrate water outlet of the second-stage reverse osmosis membrane pipe 2;
the upper end of the precipitation tank 4 is provided with a reagent throwing valve pipe, after the concentrated water in the concentrated water pipe 3 enters the precipitation tank 4, reagent is added from the reagent throwing valve pipe, so that heavy metal ions in the concentrated water fully react to form precipitation, the reacted fresh water enters the second three-way valve 7 through the filter element 16, at the moment, the second three-way valve 7 enables the fresh water to flow to the activated carbon adsorption cylinder 6, the fresh water is adsorbed by the activated carbon adsorption cylinder 6, particulate matters flow to the water outlet of the second booster pump 14 through the one-way valve 9, and the particulate matters enter the second reverse osmosis membrane pipe 2 from the water outlet of the second booster pump 14 for filtration, so that the functions of heavy metal ion precipitation treatment and fresh water recovery in the concentrated water are realized;
when a certain amount of sediment is accumulated, a sediment discharge valve 17 is opened, and sediment is discharged through the sediment discharge valve 17;
the cleaning agent holds case 12 upper end and is equipped with the cleaning agent and puts in the mouth, and the first three-way valve 11 other end is connected with cleaning agent and holds case 12, and the other end of second three-way valve 7 is connected with cleaning solution discharge pipe 8, and when reverse osmosis membrane needs to wash, first three-way valve 11 will adjust to cleaning agent and hold case 12 and one-level booster pump 10 intercommunication, and second three-way valve 7 adjusts to back flow 5 and cleaning solution discharge pipe 8 intercommunication.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
Claims (9)
1. Waste water treatment device based on reverse osmosis membrane, its characterized in that: comprises a first-stage reverse osmosis membrane pipe (1) and a second-stage reverse osmosis membrane pipe (2) which are arranged in parallel, wherein the first-stage reverse osmosis membrane pipe (1) and the second-stage reverse osmosis membrane pipe (2) are respectively provided with a concentrated water outlet and a fresh water outlet, the two concentrated water outlets are connected onto a concentrated water pipe (3) together, a precipitation tank (4) is connected onto the concentrated water pipe (3), the outlet end of the precipitation tank (4) is connected with an activated carbon adsorption cylinder (6), the outlet end of the activated carbon adsorption cylinder (6) is communicated with the inlet end of the second-stage reverse osmosis membrane pipe (2) through a return pipe (5),
the fresh water outlet of the primary reverse osmosis membrane pipe (1) is communicated with the inlet end of the secondary reverse osmosis membrane pipe (2) through a communicating pipe (18).
2. The reverse osmosis membrane-based wastewater treatment apparatus according to claim 1, wherein: the inlet end of the first-stage reverse osmosis membrane pipe (1) is connected with a first-stage booster pump (10), the inlet end of the first-stage booster pump (10) is connected with a first three-way valve (11), and the other two ports of the first three-way valve (11) are respectively connected with a waste water pipeline (13) and a cleaning agent accommodating box (12).
3. The reverse osmosis membrane-based wastewater treatment apparatus according to claim 2, wherein: the inlet end of the secondary reverse osmosis membrane pipe (2) is also connected with a secondary booster pump (14) in parallel, and the communicating pipe (18) is communicated with the inlet end of the secondary booster pump (14).
4. A reverse osmosis membrane based wastewater treatment plant according to claim 3, characterized in that: a second three-way valve (7) is connected between the sedimentation tank (4) and the activated carbon adsorption cylinder (6), and the other port of the second three-way valve (7) is connected with a cleaning liquid discharge pipe (8).
5. The reverse osmosis membrane-based wastewater treatment apparatus according to claim 4, wherein: the sedimentation tank (4) is internally and vertically fixedly connected with a filter element (16), the lower end part of the sedimentation tank (4) is fixedly connected with a pipe orifice communicated with the inner cavity of the filter element (16), and the inlet end of the second three-way valve (7) is connected with the pipe orifice.
6. The reverse osmosis membrane-based wastewater treatment apparatus according to claim 5, wherein: the upper end of the sedimentation tank (4) is provided with a reagent throwing valve pipe.
7. The reverse osmosis membrane-based wastewater treatment apparatus according to claim 6, wherein: the lower end part of the sedimentation tank (4) is fixedly connected with a sediment discharge valve (17) communicated with the inner cavity of the sedimentation tank.
8. The reverse osmosis membrane-based wastewater treatment plant of claim 7, wherein: the return pipe (5) is connected with a one-way valve (9).
9. The reverse osmosis membrane-based wastewater treatment plant of claim 8, wherein: the fresh water outlet of the second-stage reverse osmosis membrane pipe (2) is connected with a fresh water outlet pipe (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321258208.4U CN219991249U (en) | 2023-05-23 | 2023-05-23 | Wastewater treatment device based on reverse osmosis membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321258208.4U CN219991249U (en) | 2023-05-23 | 2023-05-23 | Wastewater treatment device based on reverse osmosis membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219991249U true CN219991249U (en) | 2023-11-10 |
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ID=88618966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321258208.4U Active CN219991249U (en) | 2023-05-23 | 2023-05-23 | Wastewater treatment device based on reverse osmosis membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219991249U (en) |
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2023
- 2023-05-23 CN CN202321258208.4U patent/CN219991249U/en active Active
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