CN220078877U - High concentration ammonia nitrogen evaporation condensation water film processing system - Google Patents
High concentration ammonia nitrogen evaporation condensation water film processing system Download PDFInfo
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- CN220078877U CN220078877U CN202321616326.8U CN202321616326U CN220078877U CN 220078877 U CN220078877 U CN 220078877U CN 202321616326 U CN202321616326 U CN 202321616326U CN 220078877 U CN220078877 U CN 220078877U
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- storage tank
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 238000001704 evaporation Methods 0.000 title claims abstract description 25
- 230000008020 evaporation Effects 0.000 title claims abstract description 24
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 238000009833 condensation Methods 0.000 title claims abstract description 12
- 230000005494 condensation Effects 0.000 title claims abstract description 12
- 239000012528 membrane Substances 0.000 claims abstract description 67
- 238000003860 storage Methods 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 12
- 229910021529 ammonia Inorganic materials 0.000 claims description 6
- 239000012267 brine Substances 0.000 claims description 4
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- 239000002351 wastewater Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000012295 chemical reaction liquid Substances 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 239000000575 pesticide Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a high-concentration ammonia nitrogen evaporation condensation water film treatment system, which comprises an STRO film system, a DTRO film system and an RO film system, wherein an evaporation condensation water pipe is communicated with an NPR reactor, the NPR reactor is sequentially communicated with a plate heat exchanger, an STRO film water inlet tank and the STRO film system through pipelines, a concentrated water outlet pipe of the STRO film system is communicated with a concentrated water storage tank, the concentrated water storage tank is communicated with the DTRO film system through a pipeline, a water production pipeline of the STRO film system and the DTRO film system is communicated with a water production storage tank, and the water production storage tank is communicated with the RO film system through a pipeline. The utility model carries out pretreatment and multistage membrane treatment on the high-concentration evaporation condensate water, reduces ammonia nitrogen and total nitrogen in the water, and then recycles the production system, realizes comprehensive utilization of water resources and reduces environmental protection risks.
Description
Technical Field
The utility model belongs to the technical field of clean production in the pesticide industry, and particularly relates to a high-concentration ammonia nitrogen evaporation condensation water film treatment system.
Background
In water pollution, ammonia nitrogen wastewater pollution accounts for a large proportion, and at present, chemical industry, metallurgy, petrochemical industry, pharmacy, food and other industries all produce a large amount of high-concentration ammonia nitrogen wastewater, and a large amount of discharge of the high-concentration ammonia nitrogen wastewater can cause water eutrophication to aggravate and destroy ecological environment, so that the environment is particularly challenged for safety and environmental protection of pesticide enterprises. At present, high-concentration wastewater of most enterprises adopts processes such as stripping ammonia distillation, ammonia nitrogen stripping, iron-carbon catalytic oxygen, biochemical treatment and the like, but the ammonia nitrogen concentration in the wastewater still cannot meet the recycling or emission standards.
Disclosure of Invention
The utility model provides a high-concentration ammonia nitrogen evaporation condensation water film treatment system, which can effectively remove high-concentration ammonia nitrogen, and finally can be reused for production or used as supplementary water of a circulating water system, thereby realizing comprehensive utilization of water resources, realizing wastewater reduction from the source and providing a new idea for high-concentration wastewater treatment.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a high concentration ammonia nitrogen evaporation condensate water film processing system, the system includes STRO membrane system, DTRO membrane system and RO membrane system, evaporation condensate water pipe and NPR reactor intercommunication, the NPR reactor passes through pipeline and plate heat exchanger, STRO membrane water inlet tank, STRO membrane system communicates in proper order, the dense water outlet pipe and the dense water storage tank intercommunication of STRO membrane system, the dense water storage tank passes through pipeline and DTRO membrane system intercommunication, the water production pipeline and the water production storage tank intercommunication of STRO membrane system and DTRO membrane system, the water production storage tank passes through pipeline and RO membrane system intercommunication.
Preferably, the NPR reactor is further provided with a brine inlet pipe.
Preferably, a concentrated water outlet pipe of the RO membrane system is communicated with the STRO membrane water inlet tank.
Preferably, a water producing pipeline of the RO membrane system is communicated with a reuse water storage tank.
Preferably, a concentrated water outlet pipe of the DTRO membrane system is communicated with the ammonia distillation system.
Compared with the prior art, the utility model has the following beneficial effects:
1. the high-concentration evaporation condensate water is pretreated and subjected to multi-stage membrane treatment, ammonia nitrogen and total nitrogen in the water are reduced, and then the water is recycled to a production system, so that comprehensive utilization of water resources is realized, and environmental protection risks are reduced.
2. Can effectively solve the problem that the evaporated condensate water is completely recycled to production, reduce the water for production, and realize emission reduction and synergy at the source.
Drawings
FIG. 1 is a schematic diagram of a high concentration ammonia nitrogen evaporation condensation water film treatment system of the utility model;
wherein: the device comprises an evaporation condensate pipe 1, an NPR reactor 2, a plate heat exchanger 3, an STRO membrane water inlet tank 4, an STRO membrane system 5, a concentrated water storage tank 6, a DTRO membrane system 7, an RO membrane system 9, a brine inlet pipe 10, a reuse water storage tank 11 and an ammonia system 12.
Detailed Description
The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.
Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present disclosure are illustrated in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Example 1
The system comprises an STRO membrane system 5, a DTRO membrane system 7 and an RO membrane system 9, wherein an evaporation condensate pipe 1 is communicated with an NPR reactor 2, the NPR reactor 2 is sequentially communicated with a plate heat exchanger 3, an STRO membrane water inlet tank 4 and the STRO membrane system 5 through pipelines, a concentrated water outlet pipe of the STRO membrane system 5 is communicated with a concentrated water storage tank 6, the concentrated water storage tank 6 is communicated with the DTRO membrane system 7 through pipelines, water producing pipelines of the STRO membrane system 5 and the DTRO membrane system 7 are communicated with a water producing storage tank 8, and the water producing storage tank 8 is communicated with the RO membrane system 9 through pipelines.
Preferably, the NPR reactor 2 is further provided with a brine inlet pipe 10.
Preferably, the concentrated water outlet pipe of the RO membrane system 9 is communicated with the STRO membrane water inlet tank 4.
Preferably, the water producing pipeline of the RO membrane system 9 is in communication with a reuse water storage tank 11.
Preferably, the concentrated water outlet pipe of the DTRO membrane system 7 is communicated with an ammonia evaporation system 12.
The source of the evaporation condensate water refers to the wastewater after evaporation condensate of the pesticide production enterprises.
The water quality index of the evaporation condensate water can meet the water index of process production water and circulating water supplement water, and the specific indexes are as follows: COD is less than or equal to 100ppm, ammonia nitrogen is less than or equal to 40ppm, TN is less than or equal to 40ppm, TP is less than or equal to 1ppm. The pH value of evaporated condensate water is regulated to 5-7 through an NPR reaction system, the condensate water enters a heat exchange system to exchange heat to below 30 ℃ after being stabilized, enters an STRO membrane water inlet tank, starts to feed through an STRO membrane feed pump, sequentially passes through a buffer tank, a high-pressure pump and a membrane group system, the produced water and a concentrated water system are discharged to a storage tank, the concentrated solution is separated through a DTRO membrane, the produced concentrated solution returns to an ammonia distillation system, the produced water returns to an STRO membrane water production storage tank, the produced water enters a recycling intermediate tank after being separated through an RO membrane, and the concentrated water returns to the STRO membrane water inlet storage tank. The final reuse water index reaches: ammonia nitrogen is less than or equal to 40ppm, and total nitrogen is less than or equal to 40ppm.
NPR pretreatment: adding a certain amount of hydrochloric acid and evaporating condensed water to perform full reaction, and stabilizing the pH value to 5-7, namely the reaction end point.
And (3) a heat exchange system: the reaction liquid releases part of heat in the reaction process, so that the membrane is damaged due to the overhigh temperature, and meanwhile, the interception effect of the membrane is affected. And (3) carrying out heat exchange on the reaction liquid through a plate heat exchanger, and reducing the temperature to below 30 ℃.
STRO membrane system: and (3) performing membrane circulation on the cooled reaction liquid, controlling the conductivity to be 10-15 square meters/cm, setting the yield ratio to be 1:9, setting the membrane flux to be 18LMH, and starting to operate the membrane group system.
DTRO membrane system: membrane flux was set at 12-15LMH, yield ratio = 1:1, and membrane system operation was started.
RO membrane system: membrane flux was set at 25LMH, yield ratio = 1:9, and membrane system operation was started.
The above embodiments are merely preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the embodiments and features of the embodiments of the present utility model may be arbitrarily combined with each other without collision. The protection scope of the present utility model is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.
Claims (5)
1. The utility model provides a high concentration ammonia nitrogen evaporation condensation water film processing system, its characterized in that, the system includes STRO membrane system (5), DTRO membrane system (7) and RO membrane system (9), evaporation condensate pipe (1) and NPR reactor (2) intercommunication, NPR reactor (2) are through pipeline and plate heat exchanger (3), STRO membrane water inlet tank (4), STRO membrane system (5) communicate in proper order, the dense water outlet pipe of STRO membrane system (5) communicates with dense water storage tank (6), dense water storage tank (6) communicate with DTRO membrane system (7) through the pipeline, the water production pipeline and the water production storage tank (8) of STRO membrane system (5) and DTRO membrane system (7) communicate with each other through pipeline, water production storage tank (8) communicate with RO membrane system (9).
2. The high-concentration ammonia nitrogen evaporation and condensation water film treatment system according to claim 1, wherein the NPR reactor (2) is further provided with a brine inlet pipe (10).
3. The high-concentration ammonia nitrogen evaporation and condensation water film treatment system according to claim 1, wherein a concentrated water outlet pipe of the RO membrane system (9) is communicated with the STRO membrane water inlet tank (4).
4. The high concentration ammonia nitrogen evaporation and condensation water film treatment system according to claim 1, wherein a water producing pipeline of the RO membrane system (9) is communicated with a reuse water storage tank (11).
5. The high-concentration ammonia nitrogen evaporation and condensation water film treatment system according to claim 1, wherein a concentrated water outlet pipe of the DTRO membrane system (7) is communicated with the ammonia evaporation system (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321616326.8U CN220078877U (en) | 2023-06-25 | 2023-06-25 | High concentration ammonia nitrogen evaporation condensation water film processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321616326.8U CN220078877U (en) | 2023-06-25 | 2023-06-25 | High concentration ammonia nitrogen evaporation condensation water film processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220078877U true CN220078877U (en) | 2023-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321616326.8U Active CN220078877U (en) | 2023-06-25 | 2023-06-25 | High concentration ammonia nitrogen evaporation condensation water film processing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220078877U (en) |
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2023
- 2023-06-25 CN CN202321616326.8U patent/CN220078877U/en active Active
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