CN220926508U - Device for recycling sodium acetate by utilizing acetic acid wastewater - Google Patents
Device for recycling sodium acetate by utilizing acetic acid wastewater Download PDFInfo
- Publication number
- CN220926508U CN220926508U CN202322676741.9U CN202322676741U CN220926508U CN 220926508 U CN220926508 U CN 220926508U CN 202322676741 U CN202322676741 U CN 202322676741U CN 220926508 U CN220926508 U CN 220926508U
- Authority
- CN
- China
- Prior art keywords
- reverse osmosis
- water
- osmosis device
- tank
- stage reverse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 title claims abstract description 99
- 239000002351 wastewater Substances 0.000 title claims abstract description 45
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 title claims abstract description 31
- 239000001632 sodium acetate Substances 0.000 title claims abstract description 31
- 235000017281 sodium acetate Nutrition 0.000 title claims abstract description 31
- 238000004064 recycling Methods 0.000 title abstract description 9
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 137
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 132
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 42
- 238000001914 filtration Methods 0.000 claims abstract description 24
- 238000001704 evaporation Methods 0.000 claims abstract description 21
- 230000008020 evaporation Effects 0.000 claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 238000010612 desalination reaction Methods 0.000 claims description 13
- 239000012528 membrane Substances 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 8
- 238000000108 ultra-filtration Methods 0.000 claims description 8
- 239000012141 concentrate Substances 0.000 claims description 6
- 239000013078 crystal Substances 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 230000003750 conditioning effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 230000003472 neutralizing effect Effects 0.000 claims description 2
- 238000004065 wastewater treatment Methods 0.000 abstract description 4
- 239000008235 industrial water Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 238000009287 sand filtration Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- -1 for example Substances 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000012465 retentate Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model provides a device for recycling sodium acetate by utilizing acetic acid wastewater, and relates to the technical field of water treatment. The device for recycling sodium acetate by utilizing the acetic acid wastewater mainly comprises a neutralization tank, a filtering device, a first-stage reverse osmosis device, an evaporation concentration device, a second-stage reverse osmosis device and a water production tank, is simple in structure and low in cost, effectively realizes wastewater treatment and recycling of wastewater by converting the acetic acid wastewater into sodium acetate water, simultaneously recycles the produced water, saves industrial water, achieves near zero emission, is environment-friendly, and has economic value and social value.
Description
Technical Field
The utility model relates to the technical field of water treatment, in particular to a device for recycling sodium acetate by utilizing acetic acid wastewater.
Background
Acetic acid is used as an important organic chemical raw material and is widely applied to industries such as light spinning, medicines, dyes, fragrances, pesticides and the like, but waste acetic acid with different concentrations can be generated in the production process of the industries, and pollution can be caused and the production cost can be increased if recycling or improper treatment methods are not carried out, so that the method has important significance in recycling the acetic acid in the wastewater.
CN109319876a discloses a process for treating acetic acid waste water by resin adsorption, which mainly adopts resin adsorption to recover acetic acid in the waste water, however, the method consumes a large amount of acid and alkali for resin adsorption regeneration, and the waste water regenerated by resin also needs to be treated.
CN110526818a discloses a device and a method for purifying acetic acid from acetic acid-containing wastewater, and recovery of acetic acid in wastewater is mainly achieved by using an organic entrainer, however, the method has limitations, and is difficult to realize large-area industrial application.
In view of this, the present utility model has been made.
Disclosure of utility model
The utility model aims to provide a device for recycling sodium acetate by utilizing acetic acid wastewater, so as to solve at least one of the problems.
In a first aspect, the present utility model provides an apparatus for recovering sodium acetate using acetic acid wastewater, comprising: the device comprises a neutralization tank, a filtering device, a first-stage reverse osmosis device, an evaporation concentration device, a second-stage reverse osmosis device and a water production tank;
The neutralization tank, the filtering device, the first-stage reverse osmosis device and the evaporation concentration device are sequentially communicated along the water treatment direction; the water purifying port of the first-stage reverse osmosis device is communicated with the water inlet of the second-stage reverse osmosis device; the water purifying port of the second-stage reverse osmosis device is communicated with the water producing tank;
The first-stage reverse osmosis device comprises a first reverse osmosis device, a second reverse osmosis device and a third reverse osmosis device; the water inlet of the first reverse osmosis device is communicated with the water inlet of the second reverse osmosis device, the water inlet of the second reverse osmosis device is communicated with the water inlet of the third reverse osmosis device, and the water inlet of the third reverse osmosis device is communicated with the evaporation concentration device;
The neutralization pond is used for reacting acetic acid wastewater with alkali to obtain a sodium acetate water sample with the pH value of 7-8;
The filtering device is used for removing suspended matters in the wastewater so that the treated wastewater meets the water inlet requirement of the reverse osmosis device;
The first-stage reverse osmosis device is used for concentrating produced water of the filtering device;
The evaporation concentration device is used for evaporating and concentrating the concentrated water of the first-stage reverse osmosis device to obtain sodium acetate concentrated solution or crystal;
The second-stage reverse osmosis device is used for purifying produced water of the first-stage reverse osmosis device;
the water producing tank is used for collecting water produced by the second-stage reverse osmosis device.
As a further technical scheme, along the water treatment direction, the neutralization pond comprises a neutralization reaction tank, a neutralization homogenizing tank and a neutralization water producing tank which are communicated in sequence.
As a further technical scheme, the neutralization reaction tank is provided with a dosing port for dosing alkali.
As a further technical scheme, along the water treatment direction, the filtering device comprises a sand filtering device and an ultrafiltration device which are sequentially communicated.
As a further technical scheme, the first-stage reverse osmosis device comprises a triple type flat membrane machine or a coiled membrane machine.
As a further technical scheme, the desalination rate of the first reverse osmosis device is more than 99 percent, and the pressure resistance is 60-80 bar;
The desalination rate of the second reverse osmosis device is more than 95%, and the pressure resistance is 100-120 bar;
The desalination rate of the third reverse osmosis device is more than 60%, and the pressure resistance is 60-80 bar.
As a further technical scheme, the water purifying ports of the first reverse osmosis device, the second reverse osmosis device and the third reverse osmosis device are communicated with the water inlet of the second stage reverse osmosis device.
As a further technical scheme, the water concentration port of the second-stage reverse osmosis device is communicated with the water inlet of the first-stage reverse osmosis device.
As a further technical scheme, the evaporation concentration device comprises a membrane evaporator, a mechanical recompression evaporator or a multi-effect evaporator.
As a further technical scheme, the device also comprises a homogenizing regulating tank;
And the water outlet of the homogenizing regulating tank is communicated with the water inlet of the neutralizing tank and is used for homogenizing the acetic acid wastewater.
Compared with the prior art, the utility model has the following beneficial effects:
1. Through the cooperation of each subassembly in this device, can realize the conversion of acetic acid waste water to sodium acetate quality of water, when realizing acetic acid waste water treatment, convert into sodium acetate quality of water "changing waste into valuables", resource recycle.
2. The cooperation of the first reverse osmosis device, the second reverse osmosis device and the third reverse osmosis device in the device can realize 16 times high-power concentration of sodium acetate water quality, and can effectively reduce the pressure-resistant use level of the pump and reduce energy consumption.
3. The pH of the wastewater is adjusted to 7-8 by the neutralization adjusting tank in the device, so that the optimal concentration of sodium acetate by the subsequent reverse osmosis concentration device can be realized.
4. The device effectively realizes wastewater treatment and resource utilization of wastewater, and simultaneously, the produced water can be recycled, so that industrial water is saved, near zero emission is realized, the device is environment-friendly, and the device has economic value and social value.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an apparatus provided by an embodiment of the present utility model;
Fig. 2 is a detailed view of the device according to an embodiment of the present utility model.
Icon: 10-a neutralization tank; 11-a neutralization reaction tank; 12-a neutralization and homogenization tank; 13-neutralizing a water producing tank; 20-a filtration device; 21-sand filtration device; 22-an ultrafiltration device; 30-a first stage reverse osmosis unit; 31-a first reverse osmosis unit; 32-a second reverse osmosis unit; 33-a third reverse osmosis unit; 40-evaporating and concentrating device; 50-a second stage reverse osmosis unit; 60-producing water tank; 70-a homogenizing adjusting tank.
Detailed Description
Embodiments of the present utility model will be described in detail below with reference to embodiments and examples, but it will be understood by those skilled in the art that the following embodiments and examples are only for illustrating the present utility model and should not be construed as limiting the scope of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. The specific conditions are not specified, and the process is carried out according to conventional conditions or conditions suggested by manufacturers.
In a first aspect, the present utility model provides an apparatus for recovering sodium acetate using acetic acid wastewater, comprising: a neutralization tank 10, a filtering device 20, a first stage reverse osmosis device 30, an evaporation concentration device 40, a second stage reverse osmosis device 50 and a water production tank 60;
the neutralization tank 10, the filtering device 20, the first-stage reverse osmosis device 30 and the evaporation concentration device 40 are sequentially communicated along the water treatment direction; the water purifying port of the first-stage reverse osmosis device 30 is communicated with the water inlet of the second-stage reverse osmosis device 50; the clean water outlet of the second stage reverse osmosis device 50 is communicated with a water producing tank 60;
The first stage reverse osmosis unit 30 comprises a first reverse osmosis unit 31, a second reverse osmosis unit 32 and a third reverse osmosis unit 33; the water concentration port of the first reverse osmosis device 31 is communicated with the water inlet of the second reverse osmosis device 32, the water concentration port of the second reverse osmosis device 32 is communicated with the water inlet of the third reverse osmosis device 33, and the water concentration port of the third reverse osmosis device 33 is communicated with the evaporation concentration device 40;
The neutralization tank 10 is used for reacting acetic acid wastewater with alkali to obtain a sodium acetate water sample with pH of 7-8;
The filtering device 20 is used for removing suspended matters in the wastewater so that the treated wastewater meets the water inlet requirement of the reverse osmosis device;
The first stage reverse osmosis device 30 is used for concentrating the produced water of the filtering device 20;
The evaporation and concentration device 40 is used for evaporating and concentrating the concentrated water of the first-stage reverse osmosis device 30 to obtain a sodium acetate concentrated solution or crystal;
The second stage reverse osmosis device 50 is used for purifying the produced water of the first stage reverse osmosis device 30;
the water production tank 60 is used for collecting the produced water of the second stage reverse osmosis unit 50.
The device provided by the utility model has simple structure and low cost, and effectively realizes wastewater treatment and resource utilization of wastewater (sodium acetate has wide application (can be used for industrial pH adjustment, can be used in biochemical process links and can be used as a supplementary carbon source), low cost (the cost is lower than that of methanol, starch, glucose and the like), high safety coefficient (the problem of flammability and explosiveness of methanol as a carbon source)) by converting acetic acid wastewater into sodium acetate water, and simultaneously, the produced water is recycled secondarily, thereby saving industrial water, realizing near zero emission, being environment-friendly and having economic and social values.
The reverse osmosis device mainly comprises a water inlet, a concentrated water inlet and a clean water inlet, wherein the water inlet is used for inflow of water to be treated; the water concentration port is used for discharging concentrated water; the water purifying port is used for discharging water with low salt concentration.
In some alternative embodiments, the neutralization tank 10 includes a neutralization reaction tank 11, a neutralization homogenization tank 12, and a neutralization water-producing tank 13, which are sequentially communicated in the water treatment direction.
The neutralization reaction tank 11 is used for reacting acetic acid wastewater with alkali to obtain a sodium acetate water sample with pH of 7-8; the neutralization homogenizing tank 12 is used for homogenizing the reacted water sample; the neutralization water producing tank 13 is used for collecting the homogenized water sample.
In some alternative embodiments, the neutralization reaction tank 11 is provided with a dosing port for adding a base, for example, caustic soda flakes are added from the dosing port into the neutralization reaction tank 11.
In some alternative embodiments, the filter device 20 includes a sand filter device 21 and an ultrafiltration device 22 in sequential communication along the water treatment direction.
Wherein, the sand filter device 21 is used for treating suspended matters in the sodium acetate water sample after the reaction of the neutralization pond 10 is completed and large granular matters or precipitated crystals;
The ultrafiltration device 22 is used for further removing micro suspended matters and particulate matters in the produced water of the sand filtration device 21 so as to meet the water inlet requirement of the reverse osmosis device.
In some alternative embodiments, the retentate of the ultrafiltration device 22 is returned to the water inlet of the sand filtration device 21 via a conduit.
In some alternative embodiments, the backwash water of the ultrafiltration device 22 is returned to the water inlet of the sand filtration device 21 through a pipeline.
In some alternative embodiments, the first stage reverse osmosis device 30 is a triple plate membrane machine or a roll membrane machine.
In some alternative embodiments, the desalination rate of the first reverse osmosis device 31 is more than 99%, and the pressure resistance is 60-80 bar;
The desalination rate of the second reverse osmosis device 32 is more than 95%, and the pressure resistance is 100-120 bar;
The third reverse osmosis unit 33 has a desalination rate of > 60% and a pressure resistance of 60-80 bar.
Through the accurate model selection of the three-section reverse osmosis device, high-power concentration of sodium acetate wastewater can be realized, the pressure-resistant use level of the pump can be effectively reduced, and the energy consumption is reduced.
In some alternative embodiments, the net water gap of the first, second and third reverse osmosis units 31, 32, 33 is in communication with the water inlet of the second stage reverse osmosis unit 50.
In some alternative embodiments, the concentrate inlet of the second stage reverse osmosis unit 50 communicates with the water inlet of the first stage reverse osmosis unit 30.
In some alternative embodiments, the evaporative concentration device 40 is a membrane evaporator, a mechanical recompression evaporator, or a multiple effect evaporator.
In some alternative embodiments, a homogeneous conditioning tank 70 is also included;
The water outlet of the homogenizing and adjusting tank 70 is communicated with the water inlet of the neutralization tank 10 and is used for homogenizing the acetic acid wastewater.
The utility model is further illustrated by the following specific examples, but it should be understood that these examples are for the purpose of illustration only and are not to be construed as limiting the utility model in any way.
Example 1
An apparatus for recovering sodium acetate using acetic acid wastewater, as shown in fig. 1 and 2, comprises: a homogenizing and regulating tank 70, a neutralization tank 10, a filtering device 20, a first-stage reverse osmosis device 30, an evaporation and concentration device 40, a second-stage reverse osmosis device 50 and a water production tank 60;
Along the water treatment direction, the homogenizing and adjusting tank 70, the neutralization tank 10, the filtering device 20, the first-stage reverse osmosis device 30 and the evaporation and concentration device 40 are sequentially communicated; the water purifying port of the first stage reverse osmosis device 30 is communicated with the water inlet of the second stage reverse osmosis device 50; the clean water outlet of the second stage reverse osmosis device 50 is communicated with a water producing tank 60;
the homogenizing adjustment tank 70 is used for homogenizing acetic acid wastewater;
The neutralization pond 10 comprises a neutralization reaction tank 11, a neutralization homogenizing tank 12 and a neutralization water production tank 13 which are sequentially communicated, and is used for treating acetic acid wastewater and alkali into a sodium acetate water sample with pH of 7-8; wherein, the neutralization reaction tank 11 is provided with a dosing port for dosing NaOH;
The filtering device 20 is used for removing suspended matters in the wastewater so that the treated wastewater meets the water inlet requirement of the reverse osmosis device; along the water treatment direction, the filtering device 20 comprises a sand filtering device 21 and an ultrafiltration device 22 which are sequentially communicated;
The first stage reverse osmosis device 30 is a triple type flat membrane machine, and is used for concentrating the produced water of the filtering device 20; comprising a first reverse osmosis unit 31, a second reverse osmosis unit 32 and a third reverse osmosis unit 33; the water concentration port of the first reverse osmosis device 31 is communicated with the water inlet of the second reverse osmosis device 32, the water concentration port of the second reverse osmosis device 32 is communicated with the water inlet of the third reverse osmosis device 33, and the water concentration port of the third reverse osmosis device 33 is communicated with the evaporation concentration device 40; the net water gap of the first reverse osmosis device 31, the second reverse osmosis device 32 and the third reverse osmosis device 33 is communicated with the water inlet of the second stage reverse osmosis device 50;
The desalination rate of the first reverse osmosis device 31 is more than 99%, and the pressure resistance is 80bar;
The desalination rate of the second reverse osmosis unit 32 is > 95% and the pressure resistance is 120bar;
The third reverse osmosis unit 33 has a desalination rate of > 60% and a pressure resistance of 80bar.
The evaporative concentration device 40 is a mechanical recompression evaporator for the evaporative concentration of the concentrate from the first stage reverse osmosis device 30 to obtain a concentrated sodium acetate solution or crystals.
The second stage reverse osmosis device 50 is used for purifying the produced water of the first stage reverse osmosis device 30; the concentrate outlet of the second stage reverse osmosis unit 50 communicates with the water inlet of the first stage reverse osmosis unit 30.
Comparative example 1
An apparatus for recovering sodium acetate by using acetic acid wastewater is different from example 1 in that the first stage reverse osmosis apparatus is a single stage reverse osmosis apparatus having a desalination rate of > 99% and a pressure resistance of 80bar; the operating pressure in the treatment process is 60-65 bar, and the average flux is 5LMH.
Test example 1
The apparatus of example 1 was used to treat acetic acid wastewater, the wastewater quality analysis is shown in Table 1, and the treatment results are as follows:
TABLE 1 raw water quality composition and concentration
The wastewater concentration before treatment of the first stage reverse osmosis unit 30, as measured in the example 1 apparatus, was: TDS (mg/L): 11180mg/L;
Concentration of concentrate after treatment by the first stage reverse osmosis unit 30: TDS (mg/L): 168130mg/L;
The results show that the device of the scheme can realize the concentration of sodium acetate from 1.12% to 16.81%.
The device of comparative example 1 can concentrate the sodium acetate content from 1.12% to 8-9% at most, and the energy consumption is increased by 10% -20% compared with that of example 1.
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.
Claims (10)
1. An apparatus for recovering sodium acetate from acetic acid wastewater, comprising: the device comprises a neutralization tank (10), a filtering device (20), a first-stage reverse osmosis device (30), an evaporation concentration device (40), a second-stage reverse osmosis device (50) and a water production tank (60);
Along the water treatment direction, the neutralization tank (10), the filtering device (20), the first-stage reverse osmosis device (30) and the evaporation concentration device (40) are sequentially communicated; the water purifying mouth of the first-stage reverse osmosis device (30) is communicated with the water inlet of the second-stage reverse osmosis device (50); the water purifying port of the second-stage reverse osmosis device (50) is communicated with a water producing tank (60);
The first-stage reverse osmosis device (30) comprises a first reverse osmosis device (31), a second reverse osmosis device (32) and a third reverse osmosis device (33); the water concentration port of the first reverse osmosis device (31) is communicated with the water inlet of the second reverse osmosis device (32), the water concentration port of the second reverse osmosis device (32) is communicated with the water inlet of the third reverse osmosis device (33), and the water concentration port of the third reverse osmosis device (33) is communicated with the evaporation concentration device (40);
The neutralization pond (10) is used for reacting acetic acid wastewater with alkali to obtain a sodium acetate water sample with the pH value of 7-8;
The filtering device (20) is used for removing suspended matters in the wastewater so that the treated wastewater meets the water inlet requirement of the reverse osmosis device;
The first-stage reverse osmosis device (30) is used for concentrating produced water of the filtering device (20);
the evaporation concentration device (40) is used for evaporating and concentrating the concentrated water of the first-stage reverse osmosis device (30) to obtain sodium acetate concentrated solution or crystal;
The second-stage reverse osmosis device (50) is used for purifying produced water of the first-stage reverse osmosis device (30);
the water producing tank (60) is used for collecting the produced water of the second-stage reverse osmosis device (50).
2. The apparatus according to claim 1, wherein the neutralization tank (10) comprises a neutralization reaction tank (11), a neutralization homogenizing tank (12) and a neutralization water-producing tank (13) which are communicated in this order in the water treatment direction.
3. The device according to claim 2, characterized in that the neutralization reaction tank (11) is provided with a dosing port for dosing alkali.
4. The apparatus according to claim 1, characterized in that the filtering means (20) comprise sand filtering means (21) and ultrafiltration means (22) in series in the water treatment direction.
5. The apparatus of claim 1, wherein the first stage reverse osmosis device (30) comprises a triple plate membrane machine or a roll membrane machine.
6. The device according to claim 1, characterized in that the desalination rate of the first reverse osmosis device (31) is > 99%, the pressure resistance is 60-80 bar;
the desalination rate of the second reverse osmosis device (32) is more than 95 percent, and the pressure resistance is 100 to 120bar;
the third reverse osmosis unit (33) has a desalination rate of > 60% and a pressure resistance of 60-80 bar.
7. The apparatus according to claim 1, wherein the net water gap of the first reverse osmosis unit (31), the second reverse osmosis unit (32) and the third reverse osmosis unit (33) is in communication with the water inlet of the second stage reverse osmosis unit (50).
8. The apparatus according to claim 1, wherein the concentrate inlet of the second stage reverse osmosis unit (50) is in communication with the water inlet of the first stage reverse osmosis unit (30).
9. The apparatus according to claim 1, wherein the evaporative concentration device (40) comprises a membrane evaporator, a mechanical recompression evaporator or a multiple effect evaporator.
10. The apparatus according to any one of claims 1-9, further comprising a homogenizing conditioning tank (70);
The water outlet of the homogenizing adjusting tank (70) is communicated with the water inlet of the neutralizing tank (10) and is used for homogenizing the acetic acid wastewater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322676741.9U CN220926508U (en) | 2023-10-07 | 2023-10-07 | Device for recycling sodium acetate by utilizing acetic acid wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322676741.9U CN220926508U (en) | 2023-10-07 | 2023-10-07 | Device for recycling sodium acetate by utilizing acetic acid wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220926508U true CN220926508U (en) | 2024-05-10 |
Family
ID=90940935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322676741.9U Active CN220926508U (en) | 2023-10-07 | 2023-10-07 | Device for recycling sodium acetate by utilizing acetic acid wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220926508U (en) |
-
2023
- 2023-10-07 CN CN202322676741.9U patent/CN220926508U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103011524B (en) | Recycling and processing method for printing and dyeing wastewater | |
| CN112551787A (en) | Mine water deep treatment system and method for treating mine water | |
| CN103803752B (en) | Treatment method of wastewater with high salinity and high organic matters | |
| CN212403781U (en) | But resource recovery's desulfurization effluent disposal system | |
| CN103388198B (en) | A kind of bipolar membrane electrodialysis method is produced the method for soda acid from viscose rayon sodium sulphate waste liquid | |
| WO2022143014A1 (en) | Resourceful treatment system and method for sodium nitrate wastewater | |
| CN111268834A (en) | Desulfurization wastewater treatment system and method capable of recycling resources | |
| CN102863096A (en) | Method for recovering waste water generated in production of starch sugar | |
| CN112624448A (en) | Method for treating wastewater generated in white carbon black production process by precipitation process | |
| CN202865053U (en) | Processing device for wastewater form circulating cooling water and reverse osmosis concentrated water | |
| CN113087259B (en) | Process for non-softening concentration of high-salt wastewater based on nanofiltration of recycled salt | |
| CN101870639A (en) | Method for producing kelp mannitol with low energy consumption | |
| CN220926508U (en) | Device for recycling sodium acetate by utilizing acetic acid wastewater | |
| CN216918911U (en) | Treatment system for zero discharge and recycling of lithium iron phosphate production wastewater | |
| CN108483710B (en) | Comprehensive seawater utilization method and system | |
| CN215102628U (en) | Processing system of concentrated water resourceization of high salt | |
| CN211972047U (en) | Low energy consumption embrane method antibiotic pharmacy waste water recycling system | |
| CN113277668A (en) | Integrated electrocatalysis wastewater hardness removal zero-discharge process | |
| CN113880293A (en) | Alkali reduction wastewater treatment method and treatment system | |
| CN114133087A (en) | Resourceful treatment process for high-salinity wastewater | |
| CN112225393A (en) | Reclaimed water recycling system and method | |
| CN208166768U (en) | A kind of system being recycled high villaumite sewage | |
| CN217627981U (en) | High salt waste water treatment and resource system | |
| CN220745638U (en) | System for utilize boron-containing chemical industry reuse water preparation desalinized water | |
| CN220597233U (en) | Processing system for recycling organic phosphine in pharmaceutical industry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |