CN115417521A - Process for recovering concentrated water in pure water production - Google Patents
Process for recovering concentrated water in pure water production Download PDFInfo
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- CN115417521A CN115417521A CN202210972023.3A CN202210972023A CN115417521A CN 115417521 A CN115417521 A CN 115417521A CN 202210972023 A CN202210972023 A CN 202210972023A CN 115417521 A CN115417521 A CN 115417521A
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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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- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/427—Treatment of water, waste water, or sewage by ion-exchange using mixed beds
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/043—Treatment of partial or bypass streams
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F2303/14—Maintenance of water treatment installations
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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Abstract
The invention provides a concentrated water recovery process in pure water production, which relates to the technical field of wastewater recovery and comprises the following steps that a water source is subjected to multi-medium filtration by a multi-medium filter through a source water pump, the water source filtered by the multi-medium filter is subjected to reverse osmosis filtration through the source water pump, and pure water filtered by the water source subjected to the reverse osmosis filtration in the multi-medium filtration process enters a mixed bed. The RO membrane treatment system is additionally provided with 50 cubic meters per hour, the concentrated water is secondarily recovered, the recovery rate reaches 60 percent, and therefore the water-saving effect is achieved, the filter membrane of the filter layer in the multi-media filter is positively output by the source water pump, the filter membrane formed by blocking impurities is positively blocked by the filter layer, the high-concentration water reversely enters the multi-media filter to flush the filter membrane of the filter layer, the filter membrane is flushed from the filter layer of the multi-media filter, and the multi-media processor is backwashed by the concentrated water tank water through the high-flow backwash water pump, so that the multi-media processor can be better cleaned.
Description
Technical Field
The invention relates to the technical field of wastewater recovery, in particular to a process for recovering concentrated water in pure water preparation.
Background
In the current pure water system water technology, the water source is handled, become the pure water, and in the preparation process, the dense water by water source output generally can directly discharge, through the investigation of big data, 30% dense water of system water handling capacity can directly discharge, and because the dense water refines the pure water comparatively troublesome, if refine the required resource of the pure water of making far away to the value that the pure water produced to the dense water, can form certain waste, and the direct discharge of dense water, but cause the waste of water resource again.
Disclosure of Invention
The invention aims to solve the defects in the prior art, in the existing pure water preparation process, through the research of big data, concentrated water with 30% of water preparation treatment capacity can be directly discharged, and because the pure water is relatively troublesome to refine the pure water, if the resources required by refining the produced pure water from the concentrated water are far from the value of the pure water from the concentrated water, certain waste can be generated, and the waste of water resources is caused by the direct discharge of the concentrated water.
In order to achieve the purpose, the invention adopts the following technical scheme: the concentrated water recovery process in pure water production is characterized by comprising the following steps: the method comprises the following steps:
s1, performing multi-medium filtering treatment on a water source by a multi-medium filter through a source water pump;
s2, performing reverse osmosis filtration on the water source filtered by the multi-medium filter through a source water pump;
s3, enabling pure water filtered by reverse osmosis of a water source filtered in the multi-medium filtering process to enter a mixed bed, and enabling a concentrated water source filtered in the reverse osmosis filtering process to enter a concentrated water tank;
s4, a backwashing water source in the mixed bed is high-purity water;
s5, allowing pure water filtered out by a concentrated water source of the concentrated water tank through reverse osmosis to enter a mixed bed, and allowing a agricultural water source filtered out in the reverse osmosis filtering process to enter the concentrated water tank to become a high-concentrated water source;
s6, enabling a high-concentration water source inside the high-concentration water tank to reversely enter the multi-media filter through the backwashing water pump, then enabling the high-concentration water source to become backwashing sewage through the multi-media filter, and discharging the backwashing sewage.
By adopting the technical scheme: transport the water source through the source water pump, filter via multi-media filter, filter the impurity in the water source, the filtered water carries out reverse osmosis filtration once through the RO membrane this moment, the water source is filtered and is divided into dense water and fresh water this moment, and fresh water can get into and mix inside the bed, and dense water then can get into dense water tank and keep in, and the dense water of dense water tank passes through RO membrane secondary reverse osmosis filtration, dense water becomes high enriched water and fresh water this moment, and fresh water discharges into and mixes inside the bed, high enriched water gets into the inside keeping in of high enriched water tank, through once reverse osmosis filtration with and the pure water content in the reduction high enriched water that secondary reverse osmosis filtration can be better, and extract high dense water through the backwash water pump and wash multi-media filter, thereby make high enriched water can the reutilization, thereby play the effect of using water wisely.
As a preferred embodiment, in step S1:
1) Many media filter, the water source filters through many media filter, and when impurity in the water source passed through many media filter's filtering layer, the gap of filtering layer can be screened impurity, and impurity can stop between the gap of filtering layer, and liquid then can pass many media filter.
2) And colloid particles staying in gaps of the filter layer can form a certain filter membrane for a long time.
By adopting the technical scheme: the water source can be filtered through the multi-media filter, and impurities, particularly floating objects, colloidal particles and the like in the water source are filtered.
As a preferred embodiment, in the step S5:
1) The concentrated water tank is used for storing the concentrated water source filtered by the reverse osmosis filtration;
2) Transporting the concentrated water in the concentrated water tank through a water pump;
3) When the concentrated water is transported by the water pump, the concentrated water is subjected to reverse osmosis filtration through the RO membrane of 50 cubic meters per hour, the concentrated water is subjected to secondary recovery, the water blocked by the reverse osmosis filtration process enters the high-concentration water tank, and the water enters the mixed bed through the water source in the reverse osmosis filtration process to become high-purity water.
By adopting the technical scheme: collect dense water through the dense water case, the dense water case can carry out the temporary storage of certain degree to dense water, and follow-up can carry out secondary reverse osmosis through the dense water that extracts in the dense water case and filter, through increasing 50 cubic meters/hour RO membrane processing system, carries out the secondary to dense water and retrieves, and the rate of recovery reaches 60%. Thereby playing a role of saving water.
As a preferred embodiment, in the step S6;
1) High enriched water in the high concentrated water tank is transmitted through the backwash water pump, and high enriched water in the high concentrated water tank is transported by adopting the large-flow backwash water pump:
2) The large-flow backwashing water pump drives more high-concentration water to enter the multi-medium filter and reversely enter the multi-medium filter;
3) The filter membrane of the filter layer in the multi-media filter is a filter membrane formed by positive output of a source water pump;
4) The high-concentration water reversely enters the multi-media filter to wash the filter membrane of the filter layer, and the filter membrane is washed away from the filter layer of the multi-media filter;
5) And the flushed filter membrane is mixed with high-concentration water to become sewage, and the backwashing sewage is discharged.
By adopting the technical scheme: the filter membrane of the filter layer in the multi-media filter is positively output by a source water pump, the filter membrane formed by blocking impurities is positively faced by the filter layer, high-concentration water reversely enters the multi-media filter to flush the filter membrane of the filter layer, the filter membrane is flushed from the filter layer of the multi-media filter, and the multi-media processor is backwashed by using concentrated water tank water through a large-flow backwash water pump, so that the multi-media processor can be better cleaned.
As a preferred embodiment, in the step S3:
1) The water source is transported by a source water pump and is subjected to reverse osmosis filtration by an RO membrane for primary filtration;
2) Water filtered by the RO membrane from the water source enters the mixed bed through the demineralized water pump to be collected;
3) And the concentrated water of the water source filtered by the RO membrane enters a concentrated water tank for collection.
By adopting the technical scheme: through the RO membrane can be better filter the water source, and can effectual improvement system water production rate.
Compared with the prior art, the invention has the advantages and positive effects that,
in the invention, a RO membrane treatment system of 50 cubic meters per hour is added to carry out secondary recovery on concentrated water, the recovery rate reaches 60 percent, thereby achieving the water-saving effect, a water source in the reverse osmosis filtration process enters a mixed bed to be changed into high-purity water, the pure water content in the high-concentration water can be better reduced through primary reverse osmosis filtration and secondary reverse osmosis filtration, the high-concentration water enters a high-concentration water tank to be stored, the high-concentration water in the high-concentration water tank is transmitted through a reverse osmosis water pump, the high-concentration water in the high-concentration water tank is transported by adopting the high-flow reverse osmosis water pump, the high-flow reverse osmosis water pump drives more high-concentration water to enter a multi-media filter, the high-flow reverse osmosis water enters from the reverse direction of the multi-media filter, a filter membrane of a filter layer in the multi-media filter is a filter membrane formed by the forward output of the source water pump, the high-concentration water reversely enters the multi-media filter to flush the filter membrane of the filter layer, the filter membrane is flushed from the filter layer of the multi-media filter, the filter membrane is mixed with the high-concentration water to be changed into sewage, and the sewage is discharged, so that the high-concentration water can be reused, thereby the high-concentration water can be discharged, the high-concentration water can be reused, and the effect of saving water is achieved.
Drawings
Fig. 1 is a schematic flow chart of a concentrated water recovery process in pure water production according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.
Example 1
The invention provides a technical scheme that: the concentrated water recovery process in pure water production comprises the following steps:
the water source is subjected to multi-media filtration treatment by a multi-media filter through a source water pump, the water source filtered by the multi-media filter is subjected to reverse osmosis filtration through the source water pump, pure water filtered by the water source subjected to the filtration treatment in the multi-media filtration process enters a mixed bed, a concentrated water source filtered by the reverse osmosis filtration process enters a concentrated water tank, a backwashing water source inside the mixed bed is high-purity water, the pure water filtered by the concentrated water source of the concentrated water tank through reverse osmosis enters the mixed bed, a agricultural water source filtered by the reverse osmosis filtration process enters the high-concentration water tank to become a high-concentration water source, the high-concentration water source inside the high-concentration water tank reversely enters the multi-media filter through the backwashing water pump, then becomes backwashing sewage through the multi-media filter, the backwashing sewage is discharged outside, the water source is transported through the source water pump, and is filtered through the multi-media filter, and impurities in the water source are filtered out, the filtered water is subjected to primary reverse osmosis filtration through the RO membrane, the water source is divided into concentrated water and fresh water through filtration, the fresh water enters the inside of the mixed bed, the concentrated water enters the concentrated water tank for temporary storage, the concentrated water in the concentrated water tank is subjected to secondary reverse osmosis filtration through the RO membrane, the concentrated water is changed into the concentrated water and the fresh water at the moment, the fresh water is discharged into the inside of the mixed bed, the concentrated water enters the inside of the high-concentration water tank for temporary storage, the pure water content in the high-concentration water can be better reduced through the primary reverse osmosis filtration and the secondary reverse osmosis filtration, the high-concentration water is pumped through the backwash water pump to flush the multi-media filter, so that the high-concentration water can be reused, the water-saving effect is achieved, the multi-media filtration is realized, the water source is filtered through the multi-media filter, and when impurities in the water source pass through the filter layers of the multi-media filter, the gaps of the filter layers can screen the impurities, impurities can stay between gaps of the filter layer, liquid can pass through the multi-media filter, colloid particles staying in the gaps of the filter layer can form a certain filter membrane for a long time, a water source can be filtered through the multi-media filter, impurities in the water source are filtered, particularly, some floating matters, colloid particles and the like are filtered, the concentrated water tank is used for storing a concentrated water source filtered by reverse osmosis, concentrated water in the concentrated water tank is transported through the water pump, the concentrated water is subjected to reverse osmosis filtration through the RO membrane of 50 cubic meters per hour when being transported through the water pump, secondary recovery is carried out on the concentrated water, water blocked by the reverse osmosis filtration process enters the high-concentration water tank, the water enters the mixed bed through the water source in the reverse osmosis filtration process and becomes high-purity water, the concentrated water is collected through the concentrated water tank, the concentrated water can be temporarily stored to a certain extent, secondary reverse osmosis filtration can be carried out subsequently through extracting the concentrated water in the concentrated water tank, the secondary recovery is carried out through adding the RO membrane treatment system of 50 cubic meters per hour, and the recovery rate reaches 60%. Thereby play the water conservation effect, high enriched water in the high enriched water tank is transmitted through the backwash water pump, high enriched water in the high enriched water tank is transported by adopting large-traffic backwash water pump, large-traffic backwash water pump drives more high enriched water and gets into in the many media department filter, from the reverse entering of many media filter, the filter membrane of the filtering layer among the many media filter is by the filter membrane that source water pump forward output formed, high enriched water backward gets into many media filter and can wash the filter membrane of filtering layer, wash the filter membrane from many media filter's filtering layer department, and the filter membrane that washes away and becomes sewage with the high enriched water mixture, discharge backwash sewage outward, the filter membrane of the filtering layer among the many media filter is by source water pump forward output, the filtering layer is just blocking the filter membrane that forms to impurity, high enriched water backward gets into many media filter and can wash the filter membrane of filtering layer, wash the filter membrane from many media filter's filtering layer department, through large-traffic backwash water pump, carry out many media processor with the water tank water, can more the RO of the water source water is carried out through the RO to the filtration, the water source water collection is carried out through the RO, the effectual filtration of the reverse osmosis water collection membrane, the water that the reverse osmosis water gets into can carry out.
The working principle of the embodiment is as follows:
transport the water source through the source water pump, filter via multi-media filter, the water source filters through multi-media filter, impurity in the water source when passing through multi-media filter's filtering layer, the gap of filtering layer can be filtered impurity, impurity can stop between the gap of filtering layer, liquid then can pass multi-media filter, the water filtered this moment carries out reverse osmosis filtration once through the RO membrane, the water source is filtered and is divided into dense water and fresh water this moment, and fresh water can get into and mix inside the bed, and dense water then can get into dense water tank and keep in, and dense water of dense water tank passes through RO membrane secondary reverse osmosis filtration, this moment dense water becomes dense water and fresh water, and fresh water row goes into and mixes inside the bed, dense water gets into the inside and keeps in of high concentration water tank, dense water is when transporting through the water pump, carry out reverse osmosis filtration through 50 cubic meters per hour RO membrane, carry out the secondary recovery to dense water, the water that is blocked by reverse osmosis filtration process gets into high concentration water tank, collect dense water through dense water tank, dense water tank can carry out the temporary storage of certain degree, follow-up can pass through the extraction RO filtration secondary reverse osmosis recovery rate, carry out the RO secondary recovery to dense water recovery system, it increases the RO 60 hours to carry out the reverse osmosis recovery. Thereby play the water conservation effect, the water source entering through the reverse osmosis filtration in-process mixes the bed and becomes high pure water, through once reverse osmosis filtration with the pure water content in the reduction high enriched water that secondary reverse osmosis filtration can be better, and high enriched water gets into high enriched water tank and stores, high enriched water in the high enriched water tank is transmitted through the backwash water pump, adopt large-traffic backwash water pump transportation high enriched water in the high enriched water tank, large-traffic backwash water pump drives more high enriched water and gets into in the multi-media department filter, from the reverse entering of multi-media filter, the filter membrane of the filter bed among the multi-media filter is by the filter membrane that source water pump forward output formed, high enriched water contrary entering multi-media filter can wash the filter membrane of filter bed, wash the filter membrane from multi-media filter's filter bed department, and the filter membrane that washes away becomes sewage with high enriched water mixture, discharge backwash sewage, thereby make high enriched water can the reutilization, thereby play the effect of using water wisely.
Comparative example 1
This example is substantially the same as the method of example 1 provided, with the main differences being: and a 50 cubic meter/hour RO membrane treatment system is not added for carrying out secondary reverse osmosis filtration.
Comparative example 2
This example is substantially the same as the method of example 1 provided, with the main differences being: the backwashing water pump is not added to secondarily utilize the high-concentration water.
Performance testing
The waste rates of the fabric raw materials provided in example 1 and comparative examples 1 to 2 were taken in equal amounts:
| wave rate | |
| Example 1 | 5% |
| Comparative example 1 | 8% |
| Comparative example 2 | 22% |
By analyzing the relevant data in the above tables, it can be seen that:
according to the invention, a RO membrane treatment system of 50 cubic meters per hour is added to carry out secondary recovery on concentrated water, the recovery rate reaches 60%, so that a water saving effect is achieved, the high concentrated water in a high concentrated water tank is transmitted through a backwashing water pump, the high concentrated water in the high concentrated water tank is transported by adopting a large-flow backwashing water pump, the large-flow backwashing water pump drives more high concentrated water to enter a multi-medium filter and reversely enter the multi-medium filter, a filter membrane of a filter layer in the multi-medium filter is a filter membrane formed by forward output of a source water pump, the high concentrated water reversely enters the multi-medium filter and washes the filter membrane of the filter layer, the filter membrane is washed away from the filter layer of the multi-medium filter, the washed filter membrane and the high concentrated water are mixed to become sewage, and the backwashing sewage is discharged outside, so that the high concentrated water can be reused, and the effect of saving water is achieved.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (5)
1. The concentrated water recovery process in pure water production is characterized by comprising the following steps: the method comprises the following steps:
s1, performing multi-medium filtering treatment on a water source by a multi-medium filter through a source water pump;
s2, performing reverse osmosis filtration on the water source filtered by the multi-media filter through a source water pump;
s3, allowing pure water filtered by the reverse osmosis of the water source filtered in the multi-medium filtering process to enter a mixed bed, and allowing a concentrated water source filtered in the reverse osmosis filtering process to enter a concentrated water tank;
s4, a backwashing water source in the mixed bed is high-purity water;
s5, pure water filtered out by a concentrated water source of the concentrated water tank through reverse osmosis enters a mixed bed, and a pesticide source filtered out in the reverse osmosis filtering process enters the concentrated water tank to be changed into a high-concentrated water source;
s6, reversely enabling a high-concentration water source in the high-concentration water tank to enter the multi-media filter through the backwash water pump, then enabling the high-concentration water source to become backwash sewage through the multi-media filter, and discharging the backwash sewage.
2. The concentrated water recovery process in pure water preparation according to claim 1, characterized in that: in the step S1:
1) The multi-medium filtration is carried out, the water source is filtered by the multi-medium filter, when impurities in the water source pass through the filter layers of the multi-medium filter, the impurities can be screened by the gaps of the filter layers, the impurities can stay between the gaps of the filter layers, and the liquid can pass through the multi-medium filter,
2) And colloid particles staying in gaps of the filter layer can form a certain filter membrane for a long time.
3. The concentrated water recovery process in pure water preparation according to claim 1, characterized in that: in the step S5:
1) The concentrated water tank is used for storing the concentrated water source filtered by the reverse osmosis filtration;
2) Transporting the concentrated water in the concentrated water tank through a water pump;
3) When the concentrated water is transported by the water pump, the concentrated water is subjected to reverse osmosis filtration through the RO membrane of 50 cubic meters per hour, the concentrated water is subjected to secondary recovery, the water blocked by the reverse osmosis filtration process enters the high-concentration water tank, and the water enters the mixed bed through the water source in the reverse osmosis filtration process to become high-purity water.
4. The concentrated water recovery process in pure water preparation according to claim 1, characterized in that: in the step S6;
1) High enriched water in the high concentrated water tank is transmitted through the backwash water pump, and high enriched water in the high concentrated water tank is transported by adopting the large-flow backwash water pump:
2) The large-flow backwashing water pump drives more high-concentration water to enter the multi-medium filter and reversely enter the multi-medium filter;
3) The filter membrane of the filter layer in the multi-medium filter is a filter membrane formed by positive output of a source water pump;
4) The high-concentration water reversely enters the multi-media filter to flush the filter membrane of the filter layer, so that the filter membrane is flushed from the filter layer of the multi-media filter;
5) And the flushed filter membrane is mixed with high-concentration water to become sewage, and the backwashing sewage is discharged.
5. The process for recovering concentrated water in water preparation by pure water as claimed in claim 1, wherein the process comprises the following steps: in the step S3:
1) The water source is transported by a source water pump and is subjected to reverse osmosis filtration by an RO membrane for primary filtration;
2) Water filtered by the RO membrane from the water source enters the mixed bed through the demineralized water pump to be collected;
3) And the concentrated water of which the water source is filtered by the RO membrane enters a concentrated water tank for collection.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202164185U (en) * | 2011-03-03 | 2012-03-14 | 彭悦 | RO (reverse osmosis) high-purity water equipment equipped with mixed bed |
| CN203173920U (en) * | 2013-03-22 | 2013-09-04 | 山东前昊炭素有限公司 | Device for preparing high-purity water |
| CN203845875U (en) * | 2014-05-07 | 2014-09-24 | 谢秋洋 | High-efficiency recovery system for reverse osmosis equipment |
| CN204779186U (en) * | 2015-05-25 | 2015-11-18 | 上海市质子重离子医院有限公司 | Proton heavy ion accelerator circulation high purity water consumptive material autoanalysis system |
| CN105366829A (en) * | 2014-08-31 | 2016-03-02 | 天津渤大硫酸工业有限公司 | Water-desalting-station multi-media-filter washing water saving system |
| WO2016082675A1 (en) * | 2014-11-28 | 2016-06-02 | 莱克电气绿能科技(苏州)有限公司 | Water purifying machine |
| CN205676296U (en) * | 2016-06-21 | 2016-11-09 | 江苏保瑞工业水处理有限公司 | A kind of high purity water system being provided with electronics mixed bed |
| CN207986856U (en) * | 2018-01-17 | 2018-10-19 | 广西桦源水处理设备有限公司 | Reverse osmosis configuration mixed bed high-purity water device |
-
2022
- 2022-08-15 CN CN202210972023.3A patent/CN115417521A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202164185U (en) * | 2011-03-03 | 2012-03-14 | 彭悦 | RO (reverse osmosis) high-purity water equipment equipped with mixed bed |
| CN203173920U (en) * | 2013-03-22 | 2013-09-04 | 山东前昊炭素有限公司 | Device for preparing high-purity water |
| CN203845875U (en) * | 2014-05-07 | 2014-09-24 | 谢秋洋 | High-efficiency recovery system for reverse osmosis equipment |
| CN105366829A (en) * | 2014-08-31 | 2016-03-02 | 天津渤大硫酸工业有限公司 | Water-desalting-station multi-media-filter washing water saving system |
| WO2016082675A1 (en) * | 2014-11-28 | 2016-06-02 | 莱克电气绿能科技(苏州)有限公司 | Water purifying machine |
| CN204779186U (en) * | 2015-05-25 | 2015-11-18 | 上海市质子重离子医院有限公司 | Proton heavy ion accelerator circulation high purity water consumptive material autoanalysis system |
| CN205676296U (en) * | 2016-06-21 | 2016-11-09 | 江苏保瑞工业水处理有限公司 | A kind of high purity water system being provided with electronics mixed bed |
| CN207986856U (en) * | 2018-01-17 | 2018-10-19 | 广西桦源水处理设备有限公司 | Reverse osmosis configuration mixed bed high-purity water device |
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