CN114195225A - Unpowered single household purifier - Google Patents
Unpowered single household purifier Download PDFInfo
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- CN114195225A CN114195225A CN202010987658.1A CN202010987658A CN114195225A CN 114195225 A CN114195225 A CN 114195225A CN 202010987658 A CN202010987658 A CN 202010987658A CN 114195225 A CN114195225 A CN 114195225A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 283
- 239000012528 membrane Substances 0.000 claims abstract description 61
- 238000001914 filtration Methods 0.000 claims abstract description 46
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000008213 purified water Substances 0.000 claims abstract description 9
- 230000005484 gravity Effects 0.000 claims abstract description 6
- 238000005374 membrane filtration Methods 0.000 claims description 42
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 29
- 238000001179 sorption measurement Methods 0.000 claims description 15
- 238000005273 aeration Methods 0.000 claims description 12
- 239000008399 tap water Substances 0.000 claims description 8
- 235000020679 tap water Nutrition 0.000 claims description 8
- 239000012510 hollow fiber Substances 0.000 claims description 3
- 238000001471 micro-filtration Methods 0.000 claims description 3
- 238000000108 ultra-filtration Methods 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 20
- 230000004907 flux Effects 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 10
- 229910001385 heavy metal Inorganic materials 0.000 description 9
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 235000020188 drinking water Nutrition 0.000 description 5
- 239000003651 drinking water Substances 0.000 description 5
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
- C02F1/444—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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/005—Valves
-
- 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
- C02F2303/04—Disinfection
-
- 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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- 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)
- Water Treatment By Sorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses an unpowered single-family water purifying device which comprises a raw water tank, a membrane filtering component and a water outlet tank, wherein a water inlet at the upper part of the raw water tank is communicated with a water inlet pipeline; the membrane filtering component is arranged in the original water tank, the water outlet of the membrane filtering component is communicated with the upper part of the water outlet tank through a purified water pipeline, and the bottom of the water outlet tank is communicated with a water outlet pipeline; the liquid level of the raw water tank is higher than the water inlet of the water outlet tank, and the water inlet of the water outlet tank is higher than the highest point of the membrane filtering component; under the drive of the gravity head, the water in the original water tank is filtered by the membrane filtering component and enters the water outlet tank through the purified water pipeline. The invention has the beneficial effects that: the water purifying device does not need power and complex maintenance, and solves the problems of high operation cost and high maintenance difficulty of the existing rural distributed water treatment device.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to an unpowered single-family water purifying device.
Background
China is strongly promoting drinking water safety engineering in rural areas, and tap water in rural areas has high popularization rate. However, in some remote rural areas with scattered living, the popularization of tap water is still difficult. In addition, tap water in partial areas is lack of effective treatment, the water quality of households is poor, and the drinking water safety of the households cannot be guaranteed. For farmers who have dispersed residences and poor tap water quality, water is mostly poured into the water storage tank directly and is used after simple standing. If can improve the jar, make it when the water storage, can handle water effectively, must can promote drinking water quality of water, guarantee drinking water safety.
Disclosure of Invention
The invention aims to provide an unpowered single-family water purifying device for removing turbidity and germs, purifying water and solving the problem that the water quality of partial current farmer families does not reach the standard, aiming at the defects of the prior art.
The technical scheme adopted by the invention is as follows: an unpowered single-family water purifying device comprises a raw water tank, a membrane filtering component and a water outlet tank, wherein a water inlet at the upper part of the raw water tank is communicated with a water inlet pipeline; the membrane filtering component is arranged in the original water tank, the water outlet of the membrane filtering component is communicated with the water inlet of the water outlet tank through the purified water pipeline, and the bottom of the water outlet tank is communicated with the water outlet pipeline; the liquid level of the raw water tank is higher than the water inlet of the water outlet tank, and the water inlet of the water outlet tank is higher than the highest point of the membrane filtering component; under the drive of the gravity head, the water in the original water tank is filtered by the membrane filtering component and then enters the water outlet tank through the purified water pipeline.
According to the scheme, the height difference between the highest liquid level of the raw water tank and the water inlet of the water outlet tank is 0.5-1.0 m.
According to the scheme, a water inlet tank communicated with a water inlet pipeline is additionally arranged at the top of the original water tank, and ironwork through which water can flow is paved at the lower part of the water inlet tank; the bottom of the water inlet tank is provided with an overflowing hole communicated with the original water tank.
According to the scheme, the granular activated carbon adsorption module is additionally arranged in the raw water tank.
According to the scheme, the aeration pipe is arranged in the raw water tank below the membrane filtering component, and one end of the aeration pipe is communicated with the external air box.
According to the scheme, the membrane filtration assembly is vertically arranged, and the water collecting pipe of the membrane filtration assembly is positioned at the top of the membrane filtration assembly.
According to the scheme, the membrane filtration component adopts a microfiltration membrane, an ultrafiltration membrane, a flat membrane or a hollow fiber membrane; the effective membrane area of the membrane filtration module is the volume of the original water tank
According to the scheme, the outlet of the tap water pipe is provided with the first ball float valve, and the first ball float valve is positioned in the original water tank.
According to the scheme, the outlet of the water purifying pipeline is provided with the second ball float valve, and the second ball float valve is positioned in the water outlet tank.
According to the scheme, the section of the raw water tank is in an inverted L shape and comprises a vertical section and a horizontal section which are communicated with each other, and the membrane filtering component is arranged in the vertical section of the raw water tank; the water outlet tank is positioned below the horizontal section of the original water tank.
The invention has the beneficial effects that: 1. in the invention, the liquid level of the original water tank 1 is higher than the water outlet of the water outlet tank, and the water inlet of the water outlet tank is higher than the highest point of the membrane filtering component 2; the water in the original water tank is driven by the gravity water head to enter the membrane filtering component for filtering, and enters the water outlet tank through the water purifying pipeline, a power system is not required to be additionally configured, the operation cost is not required, the water storage tank for farmers can be directly replaced, and the problem that the operation cost of the existing rural distributed water treatment device is high is solved. 2. According to the invention, the first ball float valve is arranged at the water inlet of the original water tank, and the first ball float valve can realize the linkage of membrane filtration and water inlet; the water inlet of the water outlet tank is provided with a second ball float valve, so that the linkage of water and membrane filtration is realized. 3. Ironwork, granular activated carbon adsorption module and membrane filtration subassembly are arranged along the rivers direction in proper order in the device, effectively get rid of heavy metal, trace organic matter, particulate matter and the germ of aquatic, guarantee drinking water safety. 2. Under the condition of ultralow flux, the membrane filtration resistance can be maintained stable for a long time, the filtration capacity of the membrane can be recovered to a certain extent through simple aeration scrubbing, the membrane is very easy to maintain, and the problem that the existing rural distributed water treatment device is difficult to maintain is solved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic diagram illustrating the heavy metal overdimensioning treatment according to the embodiment.
FIG. 3 is a schematic diagram of the present example for treating higher organic content.
Fig. 4 is a graph showing the change in filtration resistance of the membrane filtration module under constant flux conditions.
Fig. 5 is a schematic diagram showing the change of filtration resistance of the membrane filtration module at a constant head pressure of 0.6 m.
FIG. 6 is a schematic diagram showing the resistance change of the membrane filtration module in example 2 with or without iron in the water inlet tank.
Wherein: 1. a raw water tank; 2. a membrane filtration module; 3. a water outlet tank; 4. a water inlet valve; 5. a first float valve; 6. an aeration pipe; 7. an air box; 8. an evacuation valve; 9. a second float valve; 10. a water outlet pipeline; 11. a water inlet tank; 12. iron nails; 13. granular activated carbon adsorption module.
Detailed Description
For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
As shown in fig. 1, the unpowered single-family water purifying device comprises a raw water tank 1, a membrane filtering component 2 and a water outlet tank 3, wherein a water inlet at the upper part of the raw water tank 1 is communicated with a water inlet pipeline (which can be directly communicated with a tap water pipe), a water inlet valve 4 is arranged on the water inlet pipeline, a water outlet at the bottom of the raw water tank 1 is communicated with a discharge pipeline, and an exhaust valve 8 is arranged on the discharge pipeline and used for discharging dirty water in the raw water tank 1. The membrane filtering component 2 is arranged in the raw water tank 1, the water outlet of the membrane filtering component 2 is communicated with the water inlet of the water outlet tank 3 through a purified water pipeline, the bottom of the water outlet tank 3 is communicated with a water outlet pipeline 10, a water outlet valve is arranged on the water outlet pipeline 10, and water flowing out of the water outlet pipeline 10 can be directly used for life; the liquid level of the raw water tank 1 is higher than the water outlet of the water outlet tank 3, and the height difference is 0.5-1.0 m; the water inlet of the water outlet tank 3 is higher than the highest point of the membrane filtering component 2; driven by a gravity head, water in the raw water tank 1 enters the membrane filtering component 2 for filtering and enters the water outlet tank 3 through a purified water pipeline.
In the invention, the driving force of membrane filtration is the height difference between the liquid level of the original water tank 1 and the water inlet of the water outlet tank 3, the height difference is 0.5-1.0 m, and the highest water level of the original water tank 1 and the water outlet level of the water outlet tank 3 are not more than 1 m. The membrane filtration module 2 is vertically arranged, and a water collecting pipe of the membrane filtration module 2 is positioned at the top; the membrane filtration component 2 adopts a microfiltration membrane, an ultrafiltration membrane, a flat membrane or a hollow fiber membrane, and also adopts a membrane made of organic materials or inorganic materials for filtration. The effective membrane area of the membrane filtration module 2 is the volume of the raw water tank 1
If the flux of the membrane filtration module 2 is 2-5L/m2The ratio of the water to the water is about 50-150L/m2And d. If the water consumption of one day is approximately equal to the volume of the original water tank 1, the effective membrane area is equal to
In the present invention, except for the above configuration, other configurations of the membrane filtration module 2 are the prior art, and are not described herein again.
In the present invention, the membrane filtration module 2 uses a lower flux and does not physically clean the membrane. In addition, the feed water must not contain disinfectants such as residual chlorine. Under the condition of low flux and no cleaning, although organic matters, microorganisms and particles in the inlet water are continuously deposited on the membrane, the formed pollution layer is loose, and the microorganisms in the pollution layer can degrade some organic matters causing filtration resistance. Therefore, the filtration resistance of the membrane filtration module 2 is reduced in the initial stage under long-term operation, but can be kept stable for a long period thereafter. As shown in FIG. 4, under constant flux conditions, it can be seen that at fluxes of 20 and 30L/m2At a time of reaction, filtration resistanceThe force increases rapidly; and at a flux of 10L/m2In the case of/h, the filtration resistance does not increase substantially. As shown in fig. 5, at a constant head pressure (0.6m), the membrane flux rapidly decreased in the initial stage, but stabilized thereafter, and the filtration resistance did not substantially increase. In order to ensure that the device operates at a lower flux, a lower head differential is required, so the maximum head in the present invention is limited to about 0.5-1 m. And a larger membrane area is used, where the membrane area should be calculated as 1m2And calculating the yield of 2-5L of water in 1h of the membrane. The membrane filtration module 2 should be placed vertically so that the particulate matter will fall off automatically after being deposited on the membrane to a certain thickness.
Preferably, an aeration pipe 6 is arranged at the bottom of the membrane filtration assembly 2, and one end of the aeration pipe 6 is communicated with an external air box 7 (which can be a handheld air box 7); the membrane filtration module 2 is scrubbed by aeration through the air box 7. After the filtration is stopped for a period of time, the aeration effect is better; the interval of aeration cleaning is recommended to be more than 24 h.
Preferably, a water inlet tank 11 communicated with a water inlet pipeline is additionally arranged at the top of the raw water tank 1, and ironwork (such as iron nails 12) through which water can flow is paved in the water inlet tank 11; the bottom of the water inlet tank 11 is provided with an overflowing hole communicated with the original water tank 1. The rust generated by ironwork is used for absorbing heavy metals in the water. The formation of rust on ironwork is a relatively long and slow process: the iron rust is contacted with water, oxidized to generate iron rust, flows into the water and adsorbs heavy metal water, and new iron is exposed in the water to generate new iron rust, so that the capability of long-term adsorption of heavy metal can be ensured. Rust can be effectively retained by the membrane filtration module 2 and, as shown in figure 6, rust deposited on the membrane has no significant effect on the flux of the membrane.
Preferably, a granular activated carbon adsorption module 13 is additionally arranged in the raw water tank 1 and is used for adsorbing organic matters in the inlet water. The granular activated carbon module 13 has a long-term adsorption capacity, and the subsequent coupling action of biodegradation of microorganisms and activated carbon adsorption exists. Set up granular activated carbon adsorption module 13 before membrane filtration subassembly 2, can prevent that the microbial problem is revealed to granular activated carbon. In addition, after passing through the activated carbon adsorption module 13, the flux of the membrane filtration module 2 is increased, and water production is faster.
Preferably, the outlet of the tap water pipe is provided with a first ball float valve 5, and the first ball float valve 5 is positioned in the raw water tank 1. The first ball cock 5 can realize the membrane filtration and the water inlet linkage, and the process is: the membrane filtering component 2 filters produced water, the liquid level of the original water tank descends, the first ball float valve 5 is opened, the original water tank 1 feeds water, the liquid level of the original water tank 1 rises to the highest point, and the first ball float valve 5 is closed.
Preferably, the outlet of the clean water pipeline is provided with a second ball float valve 9, and the second ball float valve 9 is positioned in the water outlet tank 3. The second ball float valve 9 is higher than the highest point of the membrane filtering component 2, linkage of water and membrane filtering can be realized, when water is used, the liquid level of the water outlet tank 3 is lowered, the second ball float valve 9 is opened, the membrane filtering component 2 filters produced water, the original water tank 3 reaches a set liquid level, the second ball float valve 5 is closed, and filtering of the membrane filtering component 2 is stopped.
In the invention, the section of the raw water tank 1 is in an inverted L shape and comprises a vertical section and a horizontal section which are communicated with each other, and the membrane filtration component 2 is arranged in the vertical section of the raw water tank 1; the water outlet tank 3 is positioned below the horizontal section of the original water tank 1. The effective volume of the original water tank 1 is suggested to be designed according to the number of residents multiplied by 20-50L/day, and the effective volume of the water outlet tank 3 can be designed according to 1/2-1/4 of the volume of the original water tank 1. Due to the structural design of the raw water tank 1, the whole device is more compact in arrangement: the driving force of the membrane filtering component 2 is determined by the height difference between the liquid level of the original water tank 1 and the inlet of the water outlet tank 3, and a certain water outlet speed can be ensured only under a certain height difference (not less than 30 cm); if the original water tank 1 is arranged on the top of the water outlet tank 3 according to a general structural design, a certain gap exists in the middle, and the original water tank cannot be fully utilized. In addition, membrane filtration module 2 locates the lower extreme of play water tank 3 water inlet, can guarantee like this that membrane filtration module 2 is in the submerged state all the time (once membrane filtration module 2 is dry, filters again, and the resistance can be very big), and the volume of unable filterable water is less relatively.
Example 1
In the unpowered single-family water purifying device shown in fig. 1, a raw water tank 1 is positioned at the upper part of a water outlet tank 3, and a membrane filtering component 2 is arranged at the bottom of the raw water tank 1. The inlet water is automatically supplied through the inlet valve 4 and the first ball float valve 5. Under the drive of the gravity head, the inlet water is filtered by the membrane filtering component 2, enters the water outlet tank 3 and flows out through the water outlet valve, and is directly used for daily drinking and cooking.
In the present embodiment, the inlet water turbidity is 2-10NTU, the inlet water total organic carbon concentration is about 3mg/L, and the outlet water turbidity of the device is less than 0.2 NTU. The device carries out aeration scrubbing on the membrane filtration assembly 2 through the air box 7 every week, the water production capacity of the membrane filtration assembly 2 is reduced in two weeks at the initial stage of operation, but the water production capacity is kept stable all the time thereafter, and the stable water production capacity is within the design range.
Example 2
The unpowered single-family water purifying device shown in fig. 2 is additionally provided with a water inlet tank 11 on the basis of embodiment 1, the water inlet tank 11 is arranged at the top of an original water tank 1, an iron nail 12 with the thickness of 10cm is paved in the water inlet tank 11, and an overflowing hole with the aperture of 5mm is formed in the bottom of the water inlet tank 11.
In this example, the feed water contains concentrations of heavy metals As, Pb and Cu. The inlet water is added into the raw water tank 1 through the inlet tank 11. The iron nails 12 in the water inlet tank 11 are corroded slowly in a humid environment, the generated iron rust is washed into the original water tank 1 in the water inlet process, and heavy metal water in the water is removed through adsorption.
In the operation of the last year, the concentration of the heavy metal in the inlet water exceeds 5 times of the national standard, and the concentration of the heavy metal in the outlet water reaches the standard. The water producing capacity of the membrane filtration module 2 is stable, and rust has no significant influence on the water producing capacity of the membrane filtration module 2, as shown in fig. 6.
Example 3
An unpowered single-family water purifying device shown in fig. 3 is additionally provided with a granular activated carbon adsorption module 13 on the basis of embodiment 1, and the granular activated carbon adsorption module 13 is installed in a raw water tank 1. The granular activated carbon adsorption module 13 is replaced once a year.
In this example, the feed water contains a concentration of bisphenol A; in the operation of half a year, the concentration of the bisphenol A in the effluent reaches the standard by utilizing the adsorption of the granular activated carbon.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications can be made to the technical solutions described in the above-mentioned embodiments, or equivalent substitutions of some technical features, but any modifications, equivalents, improvements and the like within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims (10)
1. An unpowered single-family water purifying device is characterized by comprising a raw water tank, a membrane filtering component and a water outlet tank, wherein a water inlet at the upper part of the raw water tank is communicated with a water inlet pipeline; the membrane filtering component is arranged in the original water tank, the water outlet of the membrane filtering component is communicated with the water inlet of the water outlet tank through the purified water pipeline, and the bottom of the water outlet tank is communicated with the water outlet pipeline; the liquid level of the raw water tank is higher than the water inlet of the water outlet tank, and the water inlet of the water outlet tank is higher than the highest point of the membrane filtering component; under the drive of the gravity head, the water in the original water tank is filtered by the membrane filtering component and then enters the water outlet tank through the purified water pipeline.
2. The unpowered single-family water purifying device according to claim 1, wherein the height difference between the highest liquid level of the raw water tank and the water inlet of the water outlet tank is 0.5-1.0 m.
3. The unpowered single-family water purifying device as claimed in claim 1, wherein a water inlet tank communicated with the water inlet pipeline is additionally arranged at the top of the raw water tank, and ironwork through which water can flow is laid at the lower part of the water inlet tank; the bottom of the water inlet tank is provided with an overflowing hole communicated with the original water tank.
4. The unpowered single-family water purifying device according to claim 3, wherein a granular activated carbon adsorption module is additionally arranged in the raw water tank.
5. The unpowered single-family water purifying device as claimed in claim 1, wherein an aeration pipe is provided in the raw water tank below the membrane filtration module, and one end of the aeration pipe is communicated with an external air box.
6. The unpowered single-family water purifying device according to claim 1, wherein the membrane filtration module is arranged vertically with the water collection pipe of the membrane filtration module at the top thereof.
7. The unpowered single-family water purification device according to claim 1, wherein the membrane filtration module is a microfiltration membrane, an ultrafiltration membrane, a flat membrane or a hollow fiber membrane; the effective membrane area of the membrane filtration module is the volume of the original water tank
8. The unpowered single-family water purifying device as recited in claim 1, wherein the outlet of the tap water pipe is provided with a first ball cock, and the first ball cock is located in the raw water tank.
9. The unpowered single-family water purifying device according to claim 8, wherein the outlet of the purified water pipeline is provided with a second ball float valve, and the second ball float valve is positioned in the water outlet tank.
10. The unpowered single-family water purifying device according to claim 1, wherein the raw water tank has an inverted L-shaped cross section, and comprises a vertical section and a horizontal section which are communicated with each other, and the membrane filtering assembly is installed in the vertical section of the raw water tank; the water outlet tank is positioned below the horizontal section of the original water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010987658.1A CN114195225A (en) | 2020-09-18 | 2020-09-18 | Unpowered single household purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010987658.1A CN114195225A (en) | 2020-09-18 | 2020-09-18 | Unpowered single household purifier |
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