CN113880300A - Water purification system - Google Patents
Water purification system Download PDFInfo
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- CN113880300A CN113880300A CN202111189807.0A CN202111189807A CN113880300A CN 113880300 A CN113880300 A CN 113880300A CN 202111189807 A CN202111189807 A CN 202111189807A CN 113880300 A CN113880300 A CN 113880300A
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- reverse osmosis
- membrane group
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 158
- 238000000746 purification Methods 0.000 title claims abstract description 30
- 239000012528 membrane Substances 0.000 claims abstract description 61
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 57
- 238000005406 washing Methods 0.000 claims abstract description 33
- 239000003814 drug Substances 0.000 claims abstract description 24
- 238000004140 cleaning Methods 0.000 claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 28
- 238000000108 ultra-filtration Methods 0.000 claims description 25
- 229940079593 drug Drugs 0.000 claims description 11
- 230000008929 regeneration Effects 0.000 claims description 10
- 238000011069 regeneration method Methods 0.000 claims description 10
- 150000003839 salts Chemical class 0.000 claims description 9
- 239000008234 soft water Substances 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 238000002203 pretreatment Methods 0.000 claims description 6
- 239000002455 scale inhibitor Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000001914 filtration Methods 0.000 description 8
- 239000012459 cleaning agent Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000000382 dechlorinating effect Effects 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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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
-
- 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
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
-
- 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
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- 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
- C02F1/70—Treatment of water, waste water, or sewage by reduction
-
- 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
- C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a water purification system, comprising: a raw water pool; the pretreatment module is connected with the raw water pool; the reverse osmosis unit is provided with a plurality of groups in parallel and comprises a primary RO membrane group and a secondary RO membrane group which are communicated, the primary RO membrane group is communicated with the pretreatment module, and the membrane ratio of the primary RO membrane group to the secondary RO membrane group is 2: 1; the medicine adding module comprises a medicine washing water tank and a cleaning filter which are connected, the cleaning filter is communicated with the primary RO membrane group through a water inlet pipe, and the medicine washing water tank is communicated with the secondary RO membrane group through a return pipe; and the reverse osmosis water tank is connected with the secondary RO membrane group. The water purification system has the advantages of high purification efficiency, high water production rate, low equipment maintenance cost and the like.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a water purification system.
Background
Along with the rapid development of energy industry in recent years, the discharge of industrial wastewater is more and more, the discharge of wastewater can cause serious pollution to the environment, and bring a large amount of waste of water resource simultaneously, water purification system among the prior art usually handles waste water through reverse osmosis unit to realize the cyclic utilization of water resource. Current water purification system is when the water source that faces quality of water complicacy, because, the multiple impurity of aquatic is difficult to detach, is difficult to guarantee its effect of handling the purification to influence reverse osmosis unit's RO membrane's life and purification efficiency, have shortcomings such as water purification is with high costs, purifying effect is poor, simultaneously, its RO membrane of current reverse osmosis unit sets up the mode single, leads to the rate of recovery to be limited, easily causes the dirt of RO membrane to block up, influences the effect of water purification.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a water purification system which ensures the purification effect of industrial wastewater.
A water purification system according to an embodiment of the present invention comprises: a raw water pool; the pretreatment module is connected with the raw water pool; the reverse osmosis unit comprises a primary RO membrane group and a secondary RO membrane group which are communicated, the primary RO membrane group is communicated with the pretreatment module, and the membrane ratio of the primary RO membrane group to the secondary RO membrane group is 2: 1; the medicine adding module comprises a medicine washing water tank and a cleaning filter which are connected, the cleaning filter is communicated with the first-stage RO membrane group through a water inlet pipe, and the medicine washing water tank is communicated with the second-stage RO membrane group through a return pipe; the reverse osmosis water tank is connected with the secondary RO membrane group.
The water purification system provided by the embodiment of the invention has at least the following beneficial effects: the pretreatment system is used for pretreating raw water before reverse osmosis, so that the water quality of the raw water flowing into the reverse osmosis unit is ensured, the primary RO membrane and the secondary RO membrane are used for improving the recovery rate and the water yield, the pollution and blockage of the RO membranes are avoided, the dosing module can continuously clean the RO membranes of the reverse osmosis unit, and the continuous and stable operation of the reverse osmosis unit is ensured.
According to some embodiments of the invention, the pre-treatment module comprises a multi-media filter, an activated carbon filter and a cartridge filter in sequential communication.
According to some embodiments of the invention, a flocculant doser is arranged between the multi-media filter and the raw water pool, a reducing agent doser is arranged between the activated carbon filter and the multi-media filter, and a scale inhibitor doser is arranged between the security filter and the activated carbon filter.
According to some embodiments of the invention, the water softener further comprises a soft water module, the soft water module comprises a softener and a regeneration salt tank connected with the softener, a water inlet of the softener is communicated with the reverse osmosis water tank, a water outlet of the softener is communicated with the softening water tank, and a regeneration pump is arranged between the regeneration salt tank and the softener.
According to some embodiments of the invention, the reverse osmosis units are arranged in two groups in parallel.
According to some embodiments of the invention, a high pressure pump is provided between the pre-treatment module and the reverse osmosis unit.
According to some embodiments of the invention, a drug washing water pump is provided between the drug washing water tank and the washing filter, the drug washing water pump being connected to the washing filter through a one-way valve.
According to some embodiments of the invention, a raw water pump is disposed between the raw water basin and the pre-treatment module, the raw water pump comprising at least two groups disposed in parallel.
According to some embodiments of the invention, the device further comprises an ultrafiltration module, wherein the ultrafiltration module comprises an ultrafiltration device and an ultrafiltration water tank communicated with the ultrafiltration device, the ultrafiltration device is connected with the pretreatment module, and the ultrafiltration water tank is connected with the reverse osmosis unit.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic flow diagram of a water purification system according to the present embodiment;
FIG. 2 is a schematic diagram of a dosing module of the water purification system of the present embodiment;
reference numerals: a raw water pool 100; a pre-processing module 200; a multimedia filter 210; an activated carbon filter 220; a security filter 230; flocculant doser 240; a reducing agent doser 250; scale inhibitor doser 260; a reverse osmosis unit 300; a primary RO membrane module 310; a secondary RO membrane module 320; a medicated module 400; a drug washing water tank 410; a return pipe 411; a water inlet pipe 421; cleaning the filter 420; a drug washing water pump 430; a reverse osmosis water tank 500; a soft water module 600; a softener 610; a regenerated salt tank 620; a softened water tank 630; a high pressure pump 700; a raw water pump 800; an ultrafiltration module 900; an ultrafiltration device 910; an ultrafiltration water tank 920.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "lateral", "longitudinal", "vertical", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A water purification system according to an embodiment of the present invention, with reference to fig. 1, 2, comprises: a raw water pool 100; the pretreatment module 200 is connected with the raw water pool 100 through a pipeline, and the pretreatment module 200 is used for filtering and pretreating raw water in the raw water pool 100 to remove impurities in the raw water; the reverse osmosis unit 300 is characterized in that a plurality of groups of reverse osmosis units 300 are arranged in parallel, each reverse osmosis unit 300 comprises a first-stage RO membrane group 310 and a second-stage RO membrane group 320 which are communicated, each first-stage RO membrane group 310 is communicated with the pretreatment module 200, the membrane ratio of each first-stage RO membrane group 310 to each second-stage RO membrane group 320 is 2:1, each first-stage RO membrane group 310 comprises four groups of reverse osmosis membranes, each second-stage RO membrane group 320 comprises two groups of reverse osmosis membranes, and each group of reverse osmosis membranes is a 6-core assembled Dow reverse osmosis membrane; the medicine adding module 400, the medicine adding module 400 comprises a medicine washing water tank 410 and a cleaning filter 420 which are connected, the cleaning filter 420 is communicated with the first-stage RO membrane group 310 through a water inlet pipe 421, and the medicine washing water tank 410 is communicated with the second-stage RO membrane group 320 through a return pipe 411; the reverse osmosis water tank 500 is connected with the secondary RO membrane set 320, raw water treated by the water purification system of the invention is secondary RO concentrated water, the raw water flows from the raw water tank 100 to the pretreatment system, and flows to the reverse osmosis unit 300 after being filtered by the pretreatment system, the reverse osmosis unit 300 is used for removing particles and ions in the water to reduce the hardness of the water, the raw water forms primary RO produced water after being subjected to reverse osmosis treatment by the primary RO membrane set 310 and the secondary RO membrane set 320 and is stored in the reverse osmosis water tank 500, meanwhile, the drug washing water tank 410 of the module 400 is used for storing reverse osmosis cleaning agent, the reverse osmosis cleaning agent flows to the cleaning filter 420 through the water outlet of the drug washing water tank 410 for filtration treatment and then flows to the reverse osmosis unit 300, the reverse osmosis cleaning agent sequentially cleans the primary RO membrane set 310 and the secondary RO membrane set 320 and then flows back to the drug washing water tank 410 through the return pipe 411 to realize recycling, in more detail, the water outlet of the cleaning filter 420 is communicated with the return pipe 411 of the chemical washing water tank 410 through a shunt pipe, and the reverse osmosis cleaning agent can be returned to the chemical washing water tank 410 for storage after being purified by the cleaning filter 420.
The water purification system provided by the embodiment of the invention has at least the following beneficial effects: the pretreatment system is used for pretreating raw water before reverse osmosis, so that the water quality of the raw water flowing into the reverse osmosis unit is ensured, the primary RO membrane and the secondary RO membrane are used for improving the recovery rate and the water yield, the pollution and blockage of the RO membranes are avoided, the dosing module can continuously clean the RO membranes of the reverse osmosis unit, and the continuous and stable operation of the reverse osmosis unit is ensured.
In some embodiments of the present invention, referring to fig. 1, the pretreatment module 200 includes a multi-media filter 210, an activated carbon filter 220 and a cartridge filter 230, which are sequentially connected, wherein the multi-media filter 210 has a plurality of filter media distributed along a vertical direction, the multi-media filter 210 in this embodiment includes a smokeless coal bed and a quartz sand bed, the multi-media filter 210 is used for pre-treating a pre-stage of raw water, and impurities such as silt, suspended matters and colloid in the water and organisms such as algae are removed by filtering, so as to reduce mechanical damage and pollution to the reverse osmosis membrane element; the activated carbon filter 220 filters fine substances in the raw water through built-in activated carbon to realize functions of decoloring, deodorizing, dechlorinating, removing organic substances and the like; the cartridge filter 230 is used for further filtering the raw water, and further filtering the raw water by arranging a foldable filter element, so that the quality of the raw water meets the water outlet requirement.
In some embodiments of the present invention, referring to fig. 1, a flocculant doser 240 is disposed between the multi-media filter 210 and the raw water pool 100, and the flocculant doser 240 provides a flocculant for the multi-media filter 210, so that large particle impurities in the raw water are aggregated into a large floccule, thereby improving the solid-liquid separation effect of the multi-media filter 210; a reducing agent doser 250 is arranged between the activated carbon filter 220 and the multi-media filter 210, and the reducing agent doser 250 provides a reducing agent for the activated carbon filter 220 so as to remove oxides in raw water and ensure the filtering effect of the activated carbon filter 220; a scale inhibitor adding device 260 is arranged between the security filter 230 and the activated carbon filter 220, and the scale inhibitor adding device 260 adds a scale inhibitor into raw water, so that the raw water is prevented from being scaled in the subsequent security filter 230 and the reverse osmosis unit 300, and the method has the advantages of reducing pollution discharge, improving the utilization rate of water and the like.
In some embodiments of the present invention, referring to fig. 1, the soft water module 600 further includes a soft water module 600, the soft water module 600 includes a softener 610 and a regeneration salt tank 620 connected to the softener 610, a water inlet of the softener 610 is communicated with the reverse osmosis water tank 500, a water outlet of the softener 610 is communicated with the softening water tank 630, and a regeneration pump 630 is disposed between the regeneration salt tank 620 and the softener 610, wherein an exchange resin is disposed in the softener 610, the first-stage RO product water in the reverse osmosis water tank 500 flows into the softener 610, and the hardness of the water is reduced through the exchange action of the exchange resin, and meanwhile, the salt water in the salt tank enters the softener 610 through the regeneration pump 630, so that the exchange capacity of the exchange resin is regenerated, and the continuous operation of the softener 610 is ensured.
In some embodiments of the present invention, referring to fig. 1, two sets of reverse osmosis units 300 are arranged in parallel, and multiple sets of reverse osmosis units 300 arranged in parallel can improve water treatment efficiency and ensure production output.
In some embodiments of the present invention, a high pressure pump 700 is disposed between the pretreatment module 200 and the reverse osmosis unit 300, and the high pressure pump is used to pressurize the raw water and supply the water with flow rate and pressure to the reverse osmosis membrane, thereby ensuring smooth operation of the reverse osmosis unit 300.
In some embodiments of the present invention, referring to fig. 2, a chemical washing water pump 430 is disposed between the chemical washing water tank 410 and the washing filter 420, the chemical washing water pump 430 is connected to the washing filter 420 through a check valve, and the chemical washing water pump 430 ensures one-way flow of reverse osmosis detergent in the chemical washing water tank 410, and simultaneously increases the filtering effect of the washing filter 420 by increasing the flow rate of the reverse osmosis detergent.
In some embodiments of the present invention, referring to fig. 1, a raw water pump 800 is disposed between the raw water tank 100 and the pretreatment module 200, the raw water pump 800 includes at least two groups disposed in parallel, and the raw water pump 800 is used to enhance the water pressure of raw water, the flow rate and the pressure of the raw water flowing into the multi-media filter 210, so as to improve the filtering effect of the multi-media filter 210.
In some embodiments of the present invention, referring to fig. 1, the present invention further includes an ultrafiltration module 900, the ultrafiltration module 900 includes an ultrafiltration device 910 and an ultrafiltration water tank 920 communicated with the ultrafiltration device 910, the ultrafiltration device 910 is connected to the pretreatment module 200, the ultrafiltration water tank 920 is connected to the reverse osmosis unit 300, and the ultrafiltration device 910 mainly removes small suspended particles and colloids in water, so as to ensure that indexes such as organic content and pollution index of the effluent meet requirements of reverse osmosis water inflow.
In the description herein, references to the description of "some embodiments" mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A water purification system, comprising:
a raw water pool;
the pretreatment module is connected with the raw water pool;
the reverse osmosis unit is provided with a plurality of groups in parallel and comprises a primary RO membrane group and a secondary RO membrane group which are communicated, the primary RO membrane group is communicated with the pretreatment module, and the membrane ratio of the primary RO membrane group to the secondary RO membrane group is 2: 1;
the medicine adding module comprises a medicine washing water tank and a cleaning filter which are connected, the cleaning filter is communicated with the primary RO membrane group through a water inlet pipe, and the medicine washing water tank is communicated with the secondary RO membrane group through a return pipe;
and the reverse osmosis water tank is connected with the secondary RO membrane group.
2. The water purification system of claim 1, wherein the pre-treatment module comprises a multi-media filter, an activated carbon filter and a cartridge filter in serial communication.
3. The water purification system of claim 2, wherein a flocculant doser is provided between the multimedia filter and the raw water tank, a reducing agent doser is provided between the activated carbon filter and the multimedia filter, and a scale inhibitor doser is provided between the security filter and the activated carbon filter.
4. The water purification system of claim 1, further comprising a soft water module comprising a softener and a regeneration salt tank connected to the softener, wherein a water inlet of the softener is communicated with the reverse osmosis water tank, a water outlet of the softener is communicated with the softening water tank, and a regeneration pump is arranged between the regeneration salt tank and the softener.
5. A water purification system according to claim 1, wherein the reverse osmosis units are arranged in two groups in parallel.
6. A water purification system according to claim 1, wherein a high pressure pump is provided between the pre-treatment module and the reverse osmosis unit.
7. A water purification system according to claim 1, wherein a drug washing water pump is provided between the drug washing water tank and the washing filter, the drug washing water pump being connected to the washing filter through a one-way valve.
8. The water purification system of claim 1, wherein a raw water pump is disposed between the raw water basin and the pre-treatment module, the raw water pump comprising at least two sets disposed in parallel.
9. The water purification system of claim 1, further comprising an ultrafiltration module, wherein the ultrafiltration module comprises an ultrafiltration device and an ultrafiltration water tank communicated with the ultrafiltration device, the ultrafiltration device is connected with the pretreatment module, and the ultrafiltration water tank is connected with the reverse osmosis unit.
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| CN202111189807.0A CN113880300A (en) | 2021-10-12 | 2021-10-12 | Water purification system |
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| CN202111189807.0A CN113880300A (en) | 2021-10-12 | 2021-10-12 | Water purification system |
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