CN110845034A - Process for regenerating and recycling waste strong brine from pickled vegetable and pickle - Google Patents
Process for regenerating and recycling waste strong brine from pickled vegetable and pickle Download PDFInfo
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- CN110845034A CN110845034A CN201911183209.5A CN201911183209A CN110845034A CN 110845034 A CN110845034 A CN 110845034A CN 201911183209 A CN201911183209 A CN 201911183209A CN 110845034 A CN110845034 A CN 110845034A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/32—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
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Abstract
The invention relates to the technical field of waste recovery treatment, in particular to a process for regenerating and recycling waste strong brine from pickled vegetable and pickle.
Description
Technical Field
The invention relates to the technical field of waste recovery treatment, in particular to a process for regenerating and recycling concentrated brine from pickled vegetable and pickle waste.
Background
The pickled pickle is a traditional biological fermentation food in China, the pickled pickle can generate a large amount of pickle waste strong brine in the pickling process, the content of chloride ions in the pickle waste strong brine reaches 10-20%, and if the pickle waste strong brine is not treated, on one hand, the discharge of the pickle waste strong brine can pollute the environment, and on the other hand, the waste of edible salt is also caused.
In the existing treatment mode of the waste strong brine, the strong brine is treated by a mode of passing through a multistage filtering membrane, impurities in the strong brine remained in the pickled vegetable are more, particularly, the working environment of the initial filtering membrane is slightly bad under the pressure action of a booster pump, and the blockage phenomenon is most likely to occur, so that the problems of faults and the like are often caused to a filtering system, the filtering effect is influenced, and the system is inconvenient to maintain.
Disclosure of Invention
The invention provides a process for regenerating and recycling waste strong brine from pickled vegetable and pickle, which ensures the cleanness of a filtering membrane by continuously cleaning the filtering membrane in the primary filtering process, prolongs the service life of the filtering membrane, improves the filtering effect and provides guarantee for the operation of a filtering system.
In order to achieve the purpose, the invention provides the following technical scheme: a process for regenerating and recycling waste strong brine from pickled vegetable and pickle mainly comprises a primary regeneration system process flow, wherein the primary regeneration system process flow is divided into a filtering process, an air independent scrubbing process, a filter membrane external backwashing process and a filter membrane internal backwashing process; in the filtering process, liquid in the raw water tank is pressurized by a primary booster pump and then enters a primary precision filter through a primary bag filter; high-pressure air output by the air compressor enters a first-stage filtering membrane together with liquid discharged by a first-stage precise filter for filtering, the liquid filtered by the first-stage filtering membrane enters a first-stage brine storage tank, and liquid impurities not filtered by the first-stage filtering membrane return to an original water tank; in the air separate scrubbing process, high-pressure air is blown to the inlet side of the primary filtering membrane through an air compressor, so that liquid flows back to the original water tank, and impurities in the inlet side of the primary filtering membrane are loosened; in the process of backwashing outside the filtering membrane, an air compressor and a primary membrane backwashing water pump are started, high-pressure air and liquid in a primary brine storage tank are used for cleaning the inlet side of the primary filtering membrane together, and dirt is discharged through a cleaning sewage discharge outlet; in the process of backwashing inside the filtering membrane, an air compressor and a primary membrane backwashing water pump are started, high-pressure air and liquid in a primary brine storage tank are used for cleaning the outlet side of the primary filtering membrane together, and the liquid in the inlet side of the primary filtering membrane is flushed back to the original water tank.
Preferably, the device further comprises a medicament cleaning process, wherein the medicament liquid in the medicament mixing box enters the inlet side of the primary filtering membrane through the medicament cleaning pump and the medicament cleaning filter to form a medicament cleaning loop, so that the medicament cleaning effect on the primary filtering membrane is realized.
Preferably, the chemical cleaning process further comprises discharging fresh water in the cleaning water tank from the cleaning sewage outlet after passing through the chemical cleaning filter and the primary filtering membrane under the action of the chemical cleaning pump.
Preferably, the method also comprises a secondary regeneration system process flow, wherein the secondary regeneration system process flow is divided into a filtering process, a flushing process, a medicine washing process and a cleaning process; in the filtering process, liquid in the primary brine storage tank enters the secondary filtering membrane after being pressurized by the secondary booster pump, the liquid filtered by the secondary filtering membrane enters the secondary brine storage tank, and the liquid which is not filtered by the secondary filtering membrane returns to the original water tank; in the flushing procedure, after the liquid in the primary saline water storage tank is pressurized by the secondary booster pump, the liquid returns to the original tank through the secondary filtering membrane; in the medicine washing process, liquid medicine in the medicine blending box enters a secondary filtering membrane through a medicine washing pump and a medicine washing filter for medicine washing, and one part of liquid discharged from the secondary filtering membrane returns to the medicine blending box, and the other part of liquid is discharged from a washing sewage discharge outlet; in the cleaning procedure, fresh water in the cleaning water tank is discharged from the cleaning sewage outlet after passing through the medicine cleaning filter and the secondary filtering membrane under the action of the medicine cleaning pump.
Preferably, the method also comprises a three-level regeneration system process flow, wherein the three-level regeneration system process flow is divided into a filtering process, a flushing process, a medicine washing process and a cleaning process; in the filtering process, liquid in the secondary brine storage tank enters the tertiary filtering membrane after being pressurized by the tertiary booster pump, the liquid filtered by the tertiary filtering membrane enters the tertiary brine storage tank, and the liquid which is not filtered by the tertiary filtering membrane returns to the primary brine storage tank; in the flushing procedure, after the liquid in the secondary saline water storage tank is pressurized by the three-stage booster pump, the liquid returns to the original tank through the three-stage filtering membrane; in the medicine washing process, liquid medicine in the medicine blending box enters a three-stage filtering membrane through a medicine washing pump and a medicine washing filter for medicine washing, and one part of liquid discharged from the three-stage filtering membrane returns to the medicine blending box, and the other part of liquid is discharged from a washing sewage discharge outlet; in the cleaning procedure, fresh water in the cleaning water tank is discharged from the cleaning sewage outlet after passing through the medicine cleaning filter and the three-stage filtering membrane under the action of the medicine cleaning pump.
Preferably, the method also comprises a four-stage regeneration system process flow, wherein the four-stage regeneration system process flow is divided into a filtering process, a flushing process, a medicine washing process and a cleaning process; in the filtering process, liquid in the three-level brine storage tank enters the four-level filtering membrane after being pressurized by the four-level booster pump, the liquid filtered by the four-level filtering membrane enters the four-level brine storage tank, and the liquid which is not filtered by the four-level filtering membrane returns to the two-level brine storage tank; in the flushing procedure, after the liquid in the three-level saline water storage tank is pressurized by the four-level booster pump, the liquid returns to the original tank through the four-level filtering membrane; in the medicine washing process, liquid medicine in the medicine blending box enters a four-stage filtering membrane through a medicine washing pump and a medicine washing filter for medicine washing, and one part of liquid discharged from the four-stage filtering membrane returns to the medicine blending box, and the other part of liquid is discharged from a washing and sewage discharging outlet; in the cleaning procedure, fresh water in the cleaning water tank is discharged from the cleaning and sewage discharging outlet after passing through the medicine cleaning filter and the quaternary filtration membrane under the action of the medicine cleaning pump.
The invention has the beneficial effects that: this design salted pickle strong brine regeneration and reuse system operation process flow, handle high enriched waste brine, output salt solution is limpid and transparent, do not reduce the salt solution concentration, whole filtering process does not add any chemical agent, full physics nature is filtered, output (sodium chloride) salt solution detects through authority and reaches edible salt sanitary standard, consequently can direct retrieval and utilization, replace finished product pickle bagging-off salt solution, replace and recycle in traditional pickle secondary fermentation salt solution, reuse in other products and the food that need to use salt solution, also can be with its evaporation crystallization, the crystal salt that evaporates out detects through authority and reaches edible salt sanitary standard, reuse in fresh vegetables and pickle. After 2 years of operation verification, the operation is stable and reliable, the brine recovery rate is 95% -98%, the zero discharge is achieved, and the worldwide problem that the high waste brine (sodium chloride) of the pickled vegetable and pickle is difficult to discharge up to the standard is thoroughly solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the essential components required for the process of the present invention;
FIG. 2 is a schematic diagram of the relationship of the components of the primary regeneration system process flow in the process of the present invention;
FIG. 3 is a schematic diagram showing the relationship of the components of the process flow of the secondary regeneration system in the process of the present invention;
FIG. 4 is a schematic diagram of the relationship of the components of a three-stage regeneration system process flow in the process of the present invention;
FIG. 5 is a schematic diagram showing the relationship of the components of the four-stage regeneration system process flow in the process of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
The first embodiment is as follows:
according to the figures 1 and 2, the process for regenerating and recycling the waste strong brine from pickled vegetable and pickle mainly comprises a primary regeneration system process flow, wherein the primary regeneration system process flow is divided into a filtering process, an air separate scrubbing process, a filter membrane external backwashing process and a filter membrane internal backwashing process; in the filtering process, liquid in the raw water tank 48 is pressurized by a primary booster pump 65 and then enters a primary precision filter 50 through a primary bag filter 49; the high-pressure air output by the air compressor 51 enters a first-stage filtering membrane 57 along with the liquid discharged by the first-stage precise filter 50 for filtering, the liquid filtered by the first-stage filtering membrane 57 enters a first-stage brine storage tank 61, and the liquid impurities which are not filtered by the first-stage filtering membrane 57 return to the original water tank 48; in the air separate scrubbing process, high-pressure air is blown to the inlet side of the first-stage filtering membrane 57 through the air compressor 51, so that liquid flows back to the raw water tank 48, and impurities in the inlet side of the first-stage filtering membrane 57 are loosened; in the filter membrane external backwashing process, the air compressor 51 and the primary membrane backwashing water pump 52 are started, high-pressure air and liquid in the primary brine storage tank 61 are used for cleaning the inlet side of the primary filter membrane 57, and dirt is discharged through a cleaning sewage discharge outlet; in the membrane backwashing step, the air compressor 51 and the first-stage membrane backwashing water pump 52 are started to clean the outlet side of the first-stage filtration membrane 57 with high-pressure air and the liquid in the first-stage brine storage tank 61, and the liquid in the inlet side of the first-stage filtration membrane 57 is flushed back to the raw water tank 48.
In the embodiment, the method further comprises a chemical cleaning process, in which the chemical in the chemical mixing tank 53 enters the inlet side of the primary filtering membrane 57 through the chemical cleaning pump and the chemical cleaning filter 55 to form a chemical cleaning loop, so as to achieve the chemical cleaning effect on the primary filtering membrane 57. The medicament cleaning process also comprises discharging fresh water in the cleaning water tank 56 from a cleaning and sewage discharging outlet after passing through the medicament cleaning filter 55 and the primary filtering membrane 57 under the action of the medicament cleaning pump.
In the above arrangement, after the pickle and pickled vegetable waste strong brine is precipitated by the precipitation tank 47, the supernatant is delivered to the raw water tank 48 by the suction pump as the water inlet of the primary regeneration system. The waste strong brine in the raw water tank 48 is pressurized by a primary booster pump 65, sent to a bag filter 49 to be filtered to remove impurities with thicker diameter and solid matters, then enters a primary precision filter 50 to be filtered to filter impurities and solid matters with smaller diameter than the belt filter aperture, then enters a primary membrane to be filtered to remove impurities and solid matters with smaller diameter than the precision filter aperture, and the concentrated water returns to the raw water tank 48 to be used as the inlet water of a primary regeneration system. In this embodiment, the specific operation steps of the process flow of the primary regeneration system are as follows:
in the filtering process, the valves 1, 2 and 3 are normally opened. The filtration can be performed by opening the valve 4, closing the valve 7, valve 6, valve 8, and valve 9, opening the valve ten 10, closing the valve twelve 12, opening the valve eleven 11, and starting the system of the first-stage booster pump 65. Meanwhile, the valve 5 is opened, and the compressed air is combined with the salt water in the pipeline through the pipeline and shaken, and synchronously enters the first-stage filtering membrane 57 for filtering operation for 60 minutes.
When the air is scrubbed separately in the process: closing the valves 4, 7, 6, 8, 9 and 10, opening the valves eleven and closing the valves twelve and 12, opening the valve 5, air scrubbing and shaking the primary filter membrane 57 by compressed air for 30 seconds to loosen dirt stuck on the surface, and stopping air scrubbing by closing the valve 5 after 30 seconds.
In the backwashing process of the filtering membrane: closing a valve 4, opening a valve 6, closing a valve 7, opening a valve 8, opening a valve 9, closing a valve ten 10, opening a valve eleven 11, opening a valve twelve 12, opening a valve forty-one 41 and closing a valve forty-two 42, opening a valve 5, synchronously starting a primary backwashing water pump to synchronously perform external backwashing and air scrubbing on a primary filtering membrane 57, and closing the primary backwashing water pump and the valve 5 after the external backwashing process of the filtering membrane is finished.
And during the backwashing process inside the filtering membrane: closing the valve 4, the valve 7, the valve 6, the opening 8, the valve eleven 11, the valve 9, the valve ten 10 and the valve twelve 12, opening the valve 5, synchronously starting the primary backwashing water pump to simultaneously carry out backwashing and air scrubbing on the primary filtering membrane 57, and closing the primary backwashing water pump and the valve 5 after the process of backwashing inside the filtering membrane is finished.
And in the process of cleaning the medicament: and opening valves sixteen 16, 7, thirteen 13, 6, 4, 8, 9, 10 and eleven 11, opening valves twelve 12, forty-two 42 and forty-one 41, and starting the drug cleaning pump to simultaneously and circularly clean the first-stage filtration membrane 57. After the medicine cleaning is finished, the cleaning pump is closed, clean fresh water is injected into the cleaning water tank 56, the valves sixteen 16, forty-three 43, 7, thirteen 13, 6, 4, 8, 9, ten 10, eleven 11, twelve 12, forty-one 41 and forty-twelve 42 are closed, the medicine cleaning pump is started for flushing, and when the pH value of flushing water is 6-8, the medicine cleaning device is closed and stops for standby application.
Wherein the filtration time of the primary regeneration system is set to 60 minutes, the system automatically adjusts compressed air to scrub the filtration membrane alone after 60 minutes, the compressed air scrubbing is matched with external backwashing, the compressed air scrubbing is matched with the filtration membrane to carry out internal backwashing after the external backwashing is finished, and the system automatically recovers the operation of the filtration process after the internal backwashing is finished. The system is designed to run for 8 hours every day, and the filtering membrane is stopped for standby after being washed for 10 minutes after each time. When the filtering flux of the filtering membrane is reduced to 10-20 percent compared with the original flux, the filtering membrane needs to be cleaned by a medicament to recover the original filtering flux.
Example two:
according to the figure 3, the method also comprises a secondary regeneration system process flow which is divided into a secondary filtering process, a secondary washing process, a secondary drug washing process and a secondary cleaning process; in the secondary filtering process, the liquid in the primary brine storage tank 61 enters the secondary filtering membrane 58 after being pressurized by the secondary booster pump 66, the liquid filtered by the secondary filtering membrane 58 enters the secondary brine storage tank 62, and the liquid which is not filtered by the secondary filtering membrane 58 returns to the original water tank 48; in the secondary flushing procedure, the liquid in the primary saline water storage tank 61 returns to the original tank after passing through the secondary filtering membrane 58 after being pressurized by the secondary booster pump 66; in the secondary medicine washing process, the liquid medicine in the medicine mixing box 53 enters the secondary filtering membrane 58 through the medicine washing pump and the medicine washing filter 55 for medicine washing, and part of the liquid discharged from the secondary filtering membrane 58 returns to the medicine mixing box 53, and the other part of the liquid is discharged from the washing and sewage discharging outlet; in the second-stage cleaning process, the fresh water in the cleaning water tank 56 is discharged from the cleaning and sewage outlet after passing through the chemical cleaning filter 55 and the second-stage filtering membrane 58 under the action of the chemical cleaning pump.
The secondary regeneration system comprises the following process flows: the primary regeneration system filtered brine enters the primary brine tank to be stored as the secondary regeneration system inlet water, the secondary system filtered brine enters the secondary brine storage tank 62 to be stored, and the concentrated water returns to the raw water tank 48. The system is designed to operate in a cycle of flushing the filter membrane once every 2 hours, and the flushing water source is the brine from the primary brine storage tank 61. When the secondary system runs for 8 hours every day, the secondary system is stopped for standby after being cleaned for 10 minutes by clean fresh water. When the secondary filtering membrane 58 is blocked, the secondary filtering membrane 58 needs to be cleaned by a medicament. The original flux of the secondary filtering membrane can be recovered after the agent is cleaned, secondary filtering operation can be carried out, and the specific operation steps of the process flow of the secondary regeneration system are as follows:
a secondary filtering procedure: the method comprises the steps of firstly opening a valve seventeen 17, a valve eighteen 18, a closing valve nineteen 19, a valve forty-four 44, then opening a valve twenty-four 24, a valve twenty-three 23, a closing valve twenty-two 22, a valve twenty-one 21 and opening a valve twenty 20, and starting the secondary booster pump 66 system to perform filtering operation. And filtering brine out to enter a brine tank for storage.
A second-stage washing procedure: and (3) opening the valve seventeen 17, closing the valve nineteen 19, opening the valve eighteen 18, closing the valve forty-four 44, opening the valve twenty-four 24, opening the valve twenty-three 23, opening the valve twenty-two 22, opening the valve twenty-one 21 and opening the valve twenty-20, and starting the secondary booster pump 66 to flush. The flush water enters the raw water tank 48 and the flush water source is the brine from the primary brine storage tank 61.
A second-stage medicine washing process: and the secondary filtering membrane 58 can be cleaned circularly by starting the drug cleaning system of the drug cleaning pump. After the second-stage medicine washing process is completed, the medicine-chest washing pump 54 is turned off.
A secondary cleaning procedure: clean fresh water is injected into the cleaning water tank 56 to clean the filtration membrane, the valve forty-three 43 is opened, the valve sixteen 16 is closed, the valve thirteen 13 is opened, the valve seventeen 17 is closed, the valve nineteen 19 is opened, the valve eighteen 18 is opened, the valve forty-four 44 is opened, the valve twenty-four 24 is opened, the valve twenty-two 22 is closed, the valve twenty-three 23 is closed, the valve twenty-20 is closed, and the valve twenty-one 21 are opened, and the drug washing pump is started to wash the drug remaining in the secondary filtration membrane. Until the pH value of the washing water is between 6 and 8.
Example three:
according to the figure 4, the process flow of the three-stage regeneration system is further included, and the process flow of the three-stage regeneration system is divided into a three-stage filtering process, a three-stage flushing process, a three-stage medicine washing process and a three-stage cleaning process; in the three-stage filtration process, the liquid in the secondary brine storage tank 62 enters the three-stage filtration membrane 59 under the pressurization action of the three-stage booster pump 67, the liquid filtered by the three-stage filtration membrane 59 enters the three-stage brine storage tank 63, and the liquid not filtered by the three-stage filtration membrane 59 returns to the primary brine storage tank 61; in the third-stage flushing procedure, after the liquid in the second-stage brine storage tank 62 is pressurized by the third-stage booster pump 67, the liquid returns to the original tank after passing through the third-stage filtering membrane 59; in the third-level medicine washing process, the medicine liquid in the medicine mixing box 53 enters the third-level filtering membrane 59 through the medicine washing pump and the medicine washing filter 55 for medicine washing, and one part of the liquid discharged from the third-level filtering membrane 59 returns to the medicine mixing box 53, and the other part of the liquid is discharged from the washing and sewage discharging outlet; in the third cleaning step, the fresh water in the cleaning water tank 56 is discharged from the cleaning sewage outlet through the chemical cleaning filter 55 and the third filtering membrane 59 by the chemical tank cleaning pump 54.
In the above, the brine stored in the secondary brine storage tank 62 is taken as the inlet water of the tertiary regeneration system, the filtered brine of the tertiary system enters the tertiary brine storage tank 63 for storage, and the concentrated water returns to the primary brine storage tank 61. The system design operates every 8 hours a day to flush the tertiary filtration membrane 59 for a period of one cycle, the flush water source is clean fresh water from the wash water tank 56, and the system is shut down for 10 minutes of flushing for standby. When the water yield of the tertiary filtration membrane 59 is reduced by 10% compared with the original water yield, the tertiary filtration membrane 59 is indicated to be blocked, and the tertiary filtration membrane 59 needs to be cleaned by a medicament. The original flux of the filter can be recovered after the agent is cleaned, and the next filtering operation can be carried out. After the tertiary filtering membrane 59 is cleaned by the medicament, the medicament remained in the tertiary filtering membrane 59 is cleaned by clean fresh water until the pH value of the cleaning effluent is 6-8, and the machine is stopped for standby or the filtering operation is restarted.
The specific operation steps of the three-stage regeneration system process flow are as follows, and refer to the process flow schematic diagram:
a third-stage filtration process: and (3) opening a valve twenty-five 25, closing a valve twenty-seven 27, opening a valve twenty-six 26, closing a valve forty-five 45, opening a valve thirty-two 32, opening a valve thirty-one 31, closing a valve thirty-30, opening a valve twenty-nine 29 and opening a valve twenty-eight 28, and starting the three-stage booster pump 67 system to perform filtering operation. And filtering brine out to enter a third-stage brine tank for storage.
A third-stage washing process: the operation was carried out for 8 hours for rinsing. And the valve is opened by forty-three 43, the valve is closed by sixteen 16, the valve is 7, the valve is opened by thirteen 13, the valve is closed by twenty-five 25, the valve is opened by twenty-seven 27, the valve is twenty-six 26, the valve is forty-five 45, the valve is thirty-two 32, the valve is thirty-30, the valve is closed by thirty-eleven 31, the valve is twenty-nine 29, the valve is twenty-eight 28, and the three-stage booster pump 67 system is started to flush. The pH value of the washing water is 6-8.
A third-stage drug washing process: and the third-stage filtering membrane 59 can be circularly cleaned by starting the medicine washing system of the medicine box washing pump 54 and starting the three-stage filtering membrane 59. And after the medicine is cleaned, closing the medicine cleaning pump.
A third-stage cleaning process: clean fresh water is injected into the cleaning water tank 56 to clean the tertiary filtering membrane 69, the valve forty-three 43 is opened, the valve sixteen 16 is closed, the valve thirteen 13 is opened, the valve 7 is closed, the valve twenty-five 25 is closed, the valve twenty-seven 27 is opened, the valve forty-five 45 is opened, the valve thirty-two 32 is closed, the valve thirty-30 is closed, the valve thirty-eleven 31 is closed, the valve twenty-nine 29 is opened, and the valve twenty-eight 28 is opened, so that the drug washing pump is started to wash the drug remained in the tertiary filtering membrane 69. Until the pH value of the washing water is between 6 and 8.
Example four:
according to the figure 5, the method also comprises a four-stage regeneration system process flow which is divided into a four-stage filtering process, a four-stage flushing process, a four-stage medicinal washing process and a four-stage cleaning process; in the four-stage filtration process, the liquid in the three-stage brine storage tank 63 enters the four-stage filtration membrane 60 after being pressurized by the four-stage booster pump 68, the liquid filtered by the four-stage filtration membrane 60 enters the four-stage brine storage tank 64, and the liquid not filtered by the four-stage filtration membrane returns to the two-stage brine storage tank 62; in the fourth-stage flushing procedure, after the liquid in the third-stage brine storage tank 63 is pressurized by the fourth-stage booster pump 68, the liquid returns to the raw water tank 48 after passing through the fourth-stage filtering membrane 60; in the four-stage medicine washing process, the medicine liquid in the medicine mixing box 53 enters the four-stage filtering membrane 60 through the medicine washing pump and the medicine washing filter 55 for medicine washing, and one part of the liquid discharged from the four-stage filtering membrane 60 returns to the medicine mixing box 53, and the other part of the liquid is discharged from the washing and sewage discharging outlet; in the fourth-stage cleaning step, the fresh water in the cleaning water tank 56 is discharged from the cleaning/drain outlet through the chemical cleaning filter 55 and the fourth-stage filtration membrane 60 by the chemical tank cleaning pump 54.
In the above, tertiary brine tank stores brine as the level four regeneration system and intakes, and the level four system filters brine and gets into level four brine storage tank and stores, and dense water returns second grade brine storage tank 62. The system is designed to operate every 8 hours every day to flush the four-stage filtering membrane 60 for a period, the flushing water source is clean fresh water from the cleaning water tank 56, and the system is stopped for standby after 10 minutes of flushing. When the amount of the salt water filtered by the quaternary filtration membrane 60 is reduced by 2-3% compared with the original filtering amount, the blockage phenomenon of the quaternary filtration membrane 60 is shown, and the quaternary filtration membrane 60 needs to be cleaned by chemicals. The original flux of the filter can be recovered after the agent is cleaned, and the next filtering operation can be carried out. After the four-stage filtering membrane 60 is cleaned by the medicament, the medicament remained in the four-stage filtering membrane 60 is cleaned by clean fresh water until the pH value of the cleaning effluent is 6-8, and the four-stage filtering membrane is stopped for standby or starts to filter again. The four-stage regeneration system process flow comprises the following specific operation steps:
a fourth-stage filtration process: and starting the four-stage booster pump 68 system to perform filtering operation by opening the valve thirty-three 33, closing the valve thirty-five 35, opening the valve thirty-four 34, closing the valve forty-six 46, opening the valve forty, closing the valve thirty-nine 39, closing the valve thirty-eighteen 38, opening the valve thirty-seven 37 and opening the valve thirty-six 36. The filtered brine enters a four-stage brine storage tank 64 for storage and later reuse.
A fourth-stage washing procedure: and running for 8 hours for flushing, opening the valve forty-three 43, closing the valve sixteen 16, opening the valve thirteen 13, closing the valve thirty-three 33, opening the valve thirty-five 35, opening the valve thirty-four 34, closing the valve forty-six 46, opening the valve forty, opening the valve thirty-eight 38, closing the valve thirty-nine 39, opening the valve thirty-six 36 and opening the valve thirty-seven 37, and running and cleaning after starting the cleaning pump. The pH value of the washing effluent is 6-8.
Four-stage medicinal washing process: and the filtering membrane can be cleaned circularly by starting the medicine box cleaning system of the medicine box cleaning pump 54 and starting the medicine cleaning system, namely starting the valve sixteen 16, the valve forty-three 43, the valve 7, the valve thirteen 13, the valve thirty-three 33, the valve thirty-five 35, the valve thirty-four 34, the valve forty-six 46, the valve forty, the valve thirty-eight 38, the valve thirty-nine 39, the valve thirty-six 36 and the valve thirty-seven 37. And after the medicine is cleaned, closing the medicine cleaning pump.
A four-stage cleaning process: clean fresh water is injected into the cleaning water tank 56 to clean the filtering membrane, the valve forty-three 43 is opened, the valve sixteen 16 is closed, the valve thirteen 13 is opened, the valve 7 is closed, the valve thirty-three 33 is closed, the valve thirty-five 35 is opened, the valve forty-six 46 is opened, the valve forty, the valve thirty-eight 38 is closed, the valve thirty-nine 39 is closed, the valve thirty-six 36 and the valve thirty-seven 37 are opened, and the drug washing pump is started to wash the drug remained in the quaternary filtering membrane 60. And the washing and filtering can be resumed until the pH value of the washing effluent is between 6 and 8.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A process for regenerating and recycling pickled vegetable and pickle waste strong brine is characterized by comprising a primary regeneration system process flow, wherein the primary regeneration system process flow comprises a primary filtering process, an air independent scrubbing process, a filter membrane external backwashing process and a filter membrane internal backwashing process;
in the filtering process, liquid in the raw water tank is pressurized by a primary booster pump and then enters a primary precision filter through a primary bag filter; high-pressure air output by the air compressor enters a first-stage filtering membrane together with liquid discharged by a first-stage precise filter for filtering, the liquid filtered by the first-stage filtering membrane enters a first-stage brine storage tank, and liquid impurities not filtered by the first-stage filtering membrane return to an original water tank;
in the air separate scrubbing process, high-pressure air is blown to the inlet side of the primary filtering membrane through an air compressor, so that liquid flows back to the original water tank, and impurities in the inlet side of the primary filtering membrane are loosened;
in the process of backwashing outside the filtering membrane, an air compressor and a primary membrane backwashing water pump are started, high-pressure air and liquid in a primary brine storage tank are used for cleaning the inlet side of the primary filtering membrane together, and dirt is discharged through a cleaning sewage discharge outlet;
in the process of backwashing inside the filtering membrane, an air compressor and a primary membrane backwashing water pump are started, high-pressure air and liquid in a primary brine storage tank are used for cleaning the outlet side of the primary filtering membrane together, and the liquid in the inlet side of the primary filtering membrane is flushed back to the original water tank.
2. The process of claim 1, wherein the process comprises the steps of: the device also comprises a medicament cleaning process, wherein the liquid medicament in the medicament mixing box in the medicament cleaning process enters the inlet side of the primary filtering membrane through the medicament cleaning pump and the medicament cleaning filter to form a medicament cleaning loop, so that the medicament cleaning effect on the primary filtering membrane is realized.
3. The process of claim 2, wherein the process comprises the following steps: the medicament cleaning process also comprises the step of discharging fresh water in the cleaning water tank from a cleaning sewage outlet after passing through the medicament cleaning filter and the first-stage filtering membrane under the action of the medicament cleaning pump.
4. The process of claim 1, wherein the process comprises the steps of: the process flow of the secondary regeneration system is divided into a secondary filtering process, a secondary washing process, a secondary medicine washing process and a secondary cleaning process;
in the secondary filtering process, liquid in the primary brine storage tank enters a secondary filtering membrane after the pressurization of a secondary booster pump, the liquid filtered by the secondary filtering membrane enters the secondary brine storage tank, and the liquid which is not filtered by the secondary filtering membrane returns to the original water tank;
in the secondary flushing procedure, after the liquid in the primary saline water storage tank is pressurized by the secondary booster pump, the liquid returns to the original tank through the secondary filtering membrane;
in the secondary medicine washing procedure, the liquid medicine in the medicine blending box enters a secondary filtering membrane through a medicine washing pump and a medicine washing filter for medicine washing, and one part of the liquid discharged from the secondary filtering membrane returns to the medicine blending box, and the other part of the liquid is discharged from a washing and sewage discharging outlet;
in the second-stage cleaning procedure, fresh water in the cleaning water tank is discharged from the cleaning sewage outlet after passing through the medicine cleaning filter and the second-stage filtering membrane under the action of the medicine cleaning pump.
5. The process of claim 4, wherein the process comprises the following steps: the three-stage regeneration system comprises a three-stage regeneration system and a three-stage regeneration system, wherein the three-stage regeneration system comprises a three-stage filtering process, a three-stage flushing process, a three-stage medicinal washing process and a three-stage cleaning process;
in the third-stage filtration process, liquid in the second-stage brine storage tank enters the third-stage filtration membrane after the pressurization of the third-stage booster pump, the liquid filtered by the third-stage filtration membrane enters the third-stage brine storage tank, and the liquid not filtered by the third-stage filtration membrane returns to the first-stage brine storage tank;
in the third-stage flushing procedure, after the liquid in the second-stage brine storage tank is pressurized by the third-stage booster pump, the liquid returns to the original tank through the third-stage filtering membrane;
in the third-level medicine washing procedure, liquid medicine in the medicine blending box enters a third-level filtering membrane through a medicine washing pump and a medicine washing filter for medicine washing, and one part of liquid discharged from the third-level filtering membrane returns to the medicine blending box, and the other part of liquid is discharged from a washing and sewage discharging outlet;
in the third-stage cleaning process, fresh water in the cleaning water tank is discharged from the cleaning sewage outlet after passing through the medicine cleaning filter and the third-stage filtering membrane under the action of the medicine cleaning pump.
6. The process of claim 5, wherein the process comprises the steps of: the four-stage regeneration system comprises a four-stage filter process, a four-stage flushing process, a four-stage medicinal washing process and a four-stage cleaning process;
in the fourth-stage filtration process, liquid in the third-stage brine storage tank enters the fourth-stage filtration membrane after being pressurized by the fourth-stage booster pump, the liquid filtered by the fourth-stage filtration membrane enters the fourth-stage brine storage tank, and the liquid which is not filtered by the fourth-stage filtration membrane returns to the second-stage brine storage tank;
in the fourth-stage flushing procedure, liquid in the third-stage brine storage tank returns to the original tank after passing through a fourth-stage filtering membrane after being pressurized by the fourth-stage booster pump;
in the four-stage medicine washing process, the liquid medicine in the medicine blending box enters a four-stage filtering membrane through a medicine washing pump and a medicine washing filter for medicine washing, and one part of the liquid discharged from the four-stage filtering membrane returns to the medicine blending box, and the other part of the liquid is discharged from a washing and sewage discharging outlet;
in the four-stage cleaning process, fresh water in the cleaning water tank is discharged from the cleaning and sewage discharging outlet after passing through the medicine cleaning filter and the four-stage filtering membrane under the action of the medicine cleaning pump.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101125281A (en) * | 2007-06-12 | 2008-02-20 | 天津膜天膜工程技术有限公司 | Immersion type hollow fiber membrane separator and its running process |
| CN201751396U (en) * | 2010-05-11 | 2011-02-23 | 吴志文 | Recycling treatment system of washing waste water containing nickel |
| CN104211203A (en) * | 2014-09-28 | 2014-12-17 | 天津膜天膜科技股份有限公司 | Bittern or seawater ultrafiltration pre-treatment process and system |
| CN207130033U (en) * | 2017-08-24 | 2018-03-23 | 天津邦盛净化设备工程有限公司 | A kind of motor-car filter screen flushing waste water recycling processing system |
| KR20190086268A (en) * | 2018-01-12 | 2019-07-22 | 두산중공업 주식회사 | Backwashing system with concentrated brine and backwashing method therewith |
-
2019
- 2019-11-27 CN CN201911183209.5A patent/CN110845034A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101125281A (en) * | 2007-06-12 | 2008-02-20 | 天津膜天膜工程技术有限公司 | Immersion type hollow fiber membrane separator and its running process |
| CN201751396U (en) * | 2010-05-11 | 2011-02-23 | 吴志文 | Recycling treatment system of washing waste water containing nickel |
| CN104211203A (en) * | 2014-09-28 | 2014-12-17 | 天津膜天膜科技股份有限公司 | Bittern or seawater ultrafiltration pre-treatment process and system |
| CN207130033U (en) * | 2017-08-24 | 2018-03-23 | 天津邦盛净化设备工程有限公司 | A kind of motor-car filter screen flushing waste water recycling processing system |
| KR20190086268A (en) * | 2018-01-12 | 2019-07-22 | 두산중공업 주식회사 | Backwashing system with concentrated brine and backwashing method therewith |
Non-Patent Citations (2)
| Title |
|---|
| 许保玖: "《给水处理理论》", 31 October 2000 * |
| 赵秀红: "《高功能性大豆低聚糖的制备及功效研究应用技术》", 30 November 2018 * |
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