CN106746073A - A kind of water-saving Central water purification processing system and method - Google Patents
A kind of water-saving Central water purification processing system and method Download PDFInfo
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- CN106746073A CN106746073A CN201611120349.4A CN201611120349A CN106746073A CN 106746073 A CN106746073 A CN 106746073A CN 201611120349 A CN201611120349 A CN 201611120349A CN 106746073 A CN106746073 A CN 106746073A
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- water
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- communicating pipe
- polypropylene melt
- blown
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 119
- 238000000746 purification Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 5
- -1 polypropylene Polymers 0.000 claims abstract description 43
- 239000004743 Polypropylene Substances 0.000 claims abstract description 40
- 229920001155 polypropylene Polymers 0.000 claims abstract description 40
- 238000001728 nano-filtration Methods 0.000 claims abstract description 37
- 239000012528 membrane Substances 0.000 claims abstract description 33
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 15
- 239000010410 layer Substances 0.000 claims description 33
- 239000000243 solution Substances 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 15
- 229910021389 graphene Inorganic materials 0.000 claims description 9
- 210000004379 membrane Anatomy 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 7
- 238000004659 sterilization and disinfection Methods 0.000 claims description 7
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 6
- 210000002469 basement membrane Anatomy 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 230000001954 sterilising effect Effects 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000006228 supernatant Substances 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 238000000108 ultra-filtration Methods 0.000 claims description 6
- 238000001291 vacuum drying Methods 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 3
- 229920002292 Nylon 6 Polymers 0.000 claims description 3
- 239000004695 Polyether sulfone Substances 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 238000005119 centrifugation Methods 0.000 claims description 3
- 239000000084 colloidal system Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000005457 ice water Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005554 pickling Methods 0.000 claims description 3
- 239000002798 polar solvent Substances 0.000 claims description 3
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 3
- 229920006393 polyether sulfone Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 239000000047 product Substances 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims 1
- 239000003651 drinking water Substances 0.000 abstract description 3
- 235000020188 drinking water Nutrition 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/027—Nanofiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0039—Inorganic membrane manufacture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/12—Composite membranes; Ultra-thin membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/021—Carbon
-
- 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
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Supply & Treatment (AREA)
- Nanotechnology (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a kind of water-saving Central water purification processing system, including former pond, raw water pump, 20 micron polypropylene melt-blown filter micro-filters, active carbon filter, 5 micron polypropylene melt-blown filter accurate filters, nano-filtration membrane filter, ultraviolet sterilizer and water purifying tank, the delivery port that invention softens pond is connected with the water inlet of 20 micron polypropylene melt-blown filter micro-filters by communicating pipe, the delivery port of invention active carbon filter is connected with the water inlet of 5 micron polypropylene melt-blown filter accurate filters by communicating pipe, and 5 micron polypropylene melt-blown filter accurate filter be connected by high-pressure pump with nano-filtration membrane filter, the delivery port of invention nano-filtration membrane filter is connected with the water inlet of ultraviolet sterilizer by communicating pipe；The present invention can carry out the purification of high-quality, then using cooperatively by ultraviolet sterilizer to water so that raw water can reach the standard of drinking water, so as to reach the effect of energy-conserving and environment-protective.
Description
Technical field
The invention belongs to water cleaning systems technical field, and in particular to a kind of water-saving Central water purification processing system.
Background technology
In the prior art, the running water that waterworks is produced is by flowing into common people family etc. as drinking water after city planting ductwork
It is public use；But, existing tap water purifying technique can only remove 20% or so to organic matter in water source etc., and municipal
Pipe network etc. conveys wetting system because outmoded grade can bring secondary pollution；In addition, sterilized using chlorine more than waterworks, chlorine with it is organic
Thing combination can produce new carcinogen；Above factors cause what running water cannot reach direct drinking to drink requirement；It is existing
Building water system in, resident need drink grade water need for each family oneself purchase configuration water purifier, high cost,
Water purification quality height is different, so as to the use demand of people can not be met.
The content of the invention
It is an object of the invention to provide a kind of water-saving Central water purification processing system, to solve to be carried in above-mentioned background technology
The problem for going out.
To achieve these goals, the present invention is to realize by the following technical solutions：A kind of water-saving Central water purification
Processing system, including former pond, raw water pump, 20 micron polypropylene melt-blown filter micro-filters, active carbon filter, 5 microns gather
Propylene melt blown filter core accurate filter, nano-filtration membrane filter, ultraviolet sterilizer and water purifying tank；
The former pond is connected with pond is softened by raw water pump, the delivery port in the softening pond and 20 micron polypropylene melt-blown filters
The water inlet of micro-filter by communicating pipe connect, and 20 micron polypropylene melt-blown filter micro-filters delivery port and activated carbon
The water inlet of filter is connected by communicating pipe；
The water inlet of the delivery port of the active carbon filter and 5 micron polypropylene melt-blown filter accurate filters passes through communicating pipe
Connect, and 5 micron polypropylene melt-blown filter accurate filters are connected with nano-filtration membrane filter by high-pressure pump, the NF membrane mistake
The delivery port of filter is connected with the water inlet of ultraviolet sterilizer by communicating pipe, and the delivery port of ultraviolet sterilizer leads to water purifying tank
Cross communicating pipe connection；
The preparation method of the NF membrane is comprised the following steps：
(i) is made as rectangular-shape using steel wire, and supporting layer is obtained；
(ii) covers porous carrier layer in obtained support layer surface；
(iii) covers nanofiltration film layer in porous carrier layer surface, and the preparation method of the nanofiltration film layer is comprised the following steps：
A. by mass fraction be in 0 DEG C of ice-water bath 98% the concentrated sulfuric acid added in expansible graphite raw material, be slowly added Gao Meng
Sour potassium, stirs, and is placed in water bath with thermostatic control and is heated to 45-50 DEG C, keeps 0.5-2h；
B. deionized water to reaction system bubble-free is slowly added dropwise in resulting solution in step A to produce, is heated up in water bath with thermostatic control
To 95-100 DEG C, stir 25-30 minutes, hydrogen peroxide solution to the solution that mass fraction is 25% is added after natural cooling and is changed into bright
The suspension of yellow；
C. step B gained suspensions are filtered into obtain brown color colloid, is washed to neutrality through pickling and deionized water, dried after super
Ultrasonic disperse and centrifugally operated in pure water, supernatant is placed in dries to obtain graphene oxide powder in 65-75 DEG C of drying baker；
D. gained graphene oxide powder is placed in ultrasonic disperse 1-5h in polar solvent in step C, and supernatant is removed after centrifugation, obtains
To graphene oxide solution；
E. with polymer ultrafiltration membrane as basement membrane, graphene oxide solution is filtered using basement membrane, under 0.05-0.5MPa static pressures
Constantly promoting graphene oxide solution makes solvent molecule pass through milipore filter, obtains the nanofiltration film layer of moistening；
F. the product for covering the nanofiltration film layer of moistening is placed in vacuum drying chamber and is dried, final nanofiltration film layer is obtained；
(iv) is armor coated in nanofiltration film layer outer surface, the protective layer use concentration for 11-15% the PVA aqueous solution with receive
Filter membranous layer reaction is placed in being dried in vacuum drying chamber, and NF membrane is obtained.
Preferably, the delivery port of the former pond is connected with the water inlet of raw water pump by communicating pipe, and raw water pump goes out
The mouth of a river is connected with the water inlet for softening pond by communicating pipe.
Preferably, the delivery port of the 5 micron polypropylene melt-blown filter accurate filter passes through with the water inlet of high-pressure pump
Communicating pipe is connected, and the delivery port of high-pressure pump is connected with the water inlet of nano-filtration membrane filter by communicating pipe.
Preferably, it is provided with uviol lamp in the ultraviolet sterilizer.
Preferably, polymer ultrafiltration membrane material be polyether sulfone, polyacrylonitrile, polypropylene, polyethylene, polycaprolactam or
Any one in poly- furan alcohol.
The present invention have also been devised a kind of processing method of water-saving Central water purification processing system：When using, the raw water pump
Water in former pond is pumped into softening pond, it is melt-blown that the water after softening pond and softening enters 20 micron polypropylenes by communicating pipe
Filter core micro-filter carries out filtration treatment, and the water after filtering carries out secondary filter by communicating pipe into active carbon filter；
Water after secondary filter after communicating pipe carries out filtration treatment into 5 micron polypropylene melt-blown filter accurate filters,
Water in 5 micron polypropylene melt-blown filter accurate filters after filtering is pumped into nano-filtration membrane filter and is filtered by high-pressure pump, mistake
Water after filter carries out sterilization processing into ultraviolet sterilizer, and communicating pipe is passed through after sterilization processing into water purifying tank for using, i.e., complete
Into clean water treatment.
Beneficial effects of the present invention：The water-saving Central water purification processing system is simple and reasonable, economical and practical, user
Just, by softening pond, 20 micron polypropylene melt-blown filter micro-filters, active carbon filter, 5 micron polypropylene melt-blown filters essence
The softening and filtering of close filter and nano-filtration membrane filter, can carry out the purification of high-quality to water, then by ultraviolet sterilizer
Use cooperatively so that raw water can reach the standard of drinking water, so as to reach the effect of energy-conserving and environment-protective.
Brief description of the drawings
Fig. 1 is the structural representation of the water-saving Central water purification processing system designed by the present invention；
1- former ponds, 2- raw water pumps, 3- softenings pond, 4-20 micron polypropylene melt-blown filter micro-filters, 5- active carbon filters,
6- communicating pipes, 7-5 micron polypropylene melt-blown filter accurate filters, 8- high-pressure pumps, 9- nano-filtration membrane filters, 10- ultraviolet-sterilizations
Device, 11- water purifying tanks.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments；It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 is referred to, the present invention provides a kind of technical scheme：A kind of water-saving Central water purification processing system, including raw water
Pond 1, softening pond 3,20 micron polypropylene melt-blown filter micro-filters 4, active carbon filter 5,5 micron polypropylene melt-blown filters essence
Close filter 7, nano-filtration membrane filter 9, ultraviolet sterilizer 10 and water purifying tank 11, former pond 1 are connected with pond 3 is softened by raw water pump 2
Connect；
The water inlet of the delivery port of former pond 1 and raw water pump 2 by being connected communicating pipe 6, and the delivery port of raw water pump 2 with soften pond
3 water inlet softens the water inlet of the delivery port and 20 micron polypropylene melt-blown filter micro-filters 4 in pond 3 by connecting communicating pipe 6
Mouth is by connecting communicating pipe 6, and 20 delivery ports of micron polypropylene melt-blown filter micro-filter 4 and entering for active carbon filter 5
The mouth of a river is by connecting communicating pipe 6；
The water inlet of the delivery port of active carbon filter 5 and 5 micron polypropylene melt-blown filter accurate filters 7 passes through communicating pipe 6
Connect, and 5 micron polypropylene melt-blown filter accurate filters 7 are connected with nano-filtration membrane filter 9 by high-pressure pump 8,5 microns poly- third
The delivery port of alkene melt-blown filter accurate filter 7 with the water inlet of high-pressure pump 8 by being connected communicating pipe 6, and high-pressure pump 8 water outlet
Mouthful with the water inlet of nano-filtration membrane filter 9 by being connected communicating pipe 6, the delivery port and ultraviolet sterilizer 10 of nano-filtration membrane filter 9
Water inlet by connecting communicating pipe 6, and ultraviolet sterilizer 10 delivery port with water purifying tank 11 by being connected communicating pipe 6, it is ultraviolet
Uviol lamp is provided with sterilizer 10；
The preparation method of NF membrane is comprised the following steps：
(i) is made as rectangular-shape using steel wire, and supporting layer is obtained；
(ii) covers porous carrier layer in obtained support layer surface；
(iii) covers nanofiltration film layer in porous carrier layer surface, and the preparation method of the nanofiltration film layer is comprised the following steps：
A. by mass fraction be in 0 DEG C of ice-water bath 98% the concentrated sulfuric acid added in expansible graphite raw material, be slowly added Gao Meng
Sour potassium, stirs, and is placed in water bath with thermostatic control and is heated to 45-50 DEG C, keeps 0.5-2h；
B. deionized water to reaction system bubble-free is slowly added dropwise in resulting solution in step A to produce, is heated up in water bath with thermostatic control
To 95-100 DEG C, stir 25-30 minutes, hydrogen peroxide solution to the solution that mass fraction is 25% is added after natural cooling and is changed into bright
The suspension of yellow；
C. step B gained suspensions are filtered into obtain brown color colloid, is washed to neutrality through pickling and deionized water, dried after super
Ultrasonic disperse and centrifugally operated in pure water, supernatant is placed in dries to obtain graphene oxide powder in 65-75 DEG C of drying baker；
D. gained graphene oxide powder is placed in ultrasonic disperse 1-5h in polar solvent in step C, and supernatant is removed after centrifugation, obtains
To graphene oxide solution；
E. with polymer ultrafiltration membrane as basement membrane, graphene oxide solution is filtered using basement membrane, under 0.05-0.5MPa static pressures
Constantly promoting graphene oxide solution makes solvent molecule pass through milipore filter, obtains the nanofiltration film layer of moistening；
F. the product for covering the nanofiltration film layer of moistening is placed in vacuum drying chamber and is dried, final nanofiltration film layer is obtained；
(iv) is armor coated in nanofiltration film layer outer surface, and it is the PVA aqueous solution and NF membrane of 11-15% that protective layer uses concentration
Layer reaction is placed in being dried in vacuum drying chamber, and NF membrane is obtained；
Polymer ultrafiltration membrane material is in polyether sulfone, polyacrylonitrile, polypropylene, polyethylene, polycaprolactam or poly- furan alcohol
Any one.
The operation principle of the present embodiment is：When using, be pumped into the water in former pond 1 in softening pond 3 by the raw water pump 2,
Water after softening pond 3 and softening into 20 micron polypropylene melt-blown filter micro-filters 4 by carrying out at filtering communicating pipe 6
Reason, the water after filtering into active carbon filter 5 by carrying out secondary filter communicating pipe 6；
Water after secondary filter into 5 micron polypropylene melt-blown filter accurate filters 7 by carrying out filtration treatment communicating pipe 6
Afterwards, the water after filtering in 5 micron polypropylene melt-blown filter accurate filters 7 is pumped into nano-filtration membrane filter 9 and carried out by high-pressure pump 8
Filter, the water after filtering carries out sterilization processing into ultraviolet sterilizer 10, by being supplied into water purifying tank 11 communicating pipe 6 after sterilization processing
Use, that is, complete clean water treatment.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires to be limited rather than described above, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention；Any reference in claim should not be considered as the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined
May be appreciated other embodiment.
Claims (6)
1. a kind of water-saving Central water purification processing system, including former pond（1）, soften pond（3）, 20 micron polypropylene melt-blown filters
Micro-filter（4）, active carbon filter（5）, 5 micron polypropylene melt-blown filter accurate filters（7）, nano-filtration membrane filter（9）、
Ultraviolet sterilizer（10）And water purifying tank（11）；
It is characterized in that：The former pond（1）With softening pond（3）By raw water pump（2）Connection, the softening pond（3）Water outlet
Mouth and 20 micron polypropylene melt-blown filter micro-filters（4）Water inlet pass through communicating pipe（6）Connection, and 20 micron polypropylenes are molten
Blown filter micro-filter（4）Delivery port and active carbon filter（5）Water inlet pass through communicating pipe（6）Connection；
The active carbon filter（5）Delivery port and 5 micron polypropylene melt-blown filter accurate filters（7）Water inlet pass through
Communicating pipe（6）Connection, and 5 micron polypropylene melt-blown filter accurate filters（7）With nano-filtration membrane filter（9）By high-pressure pump
（8）Connection, the nano-filtration membrane filter（9）Delivery port and ultraviolet sterilizer（10）Water inlet pass through communicating pipe（6）Connection,
And ultraviolet sterilizer（10）Delivery port and water purifying tank（11）By communicating pipe（6）Connection；
The preparation method of the NF membrane is comprised the following steps：
(i) is made as rectangular-shape using steel wire, and supporting layer is obtained；
(ii) covers porous carrier layer in obtained support layer surface；
(iii) covers nanofiltration film layer in porous carrier layer surface, and the preparation method of the nanofiltration film layer is comprised the following steps：
A. by mass fraction be in 0 DEG C of ice-water bath 98% the concentrated sulfuric acid added in expansible graphite raw material, be slowly added Gao Meng
Sour potassium, stirs, and is placed in water bath with thermostatic control and is heated to 45-50 DEG C, keeps 0.5-2h；
B. deionized water to reaction system bubble-free is slowly added dropwise in resulting solution in step A to produce, is heated up in water bath with thermostatic control
To 95-100 DEG C, stir 25-30 minutes, hydrogen peroxide solution to the solution that mass fraction is 25% is added after natural cooling and is changed into bright
The suspension of yellow；
C. step B gained suspensions are filtered into obtain brown color colloid, is washed to neutrality through pickling and deionized water, dried after super
Ultrasonic disperse and centrifugally operated in pure water, supernatant is placed in dries to obtain graphene oxide powder in 65-75 DEG C of drying baker；
D. gained graphene oxide powder is placed in ultrasonic disperse 1-5h in polar solvent in step C, and supernatant is removed after centrifugation, obtains
To graphene oxide solution；
E. with polymer ultrafiltration membrane as basement membrane, graphene oxide solution is filtered using basement membrane, under 0.05-0.5MPa static pressures
Constantly promoting graphene oxide solution makes solvent molecule pass through milipore filter, obtains the nanofiltration film layer of moistening；
F. the product for covering the nanofiltration film layer of moistening is placed in vacuum drying chamber and is dried, final nanofiltration film layer is obtained；
(iv) is armor coated in nanofiltration film layer outer surface, the protective layer use concentration for 11-15% the PVA aqueous solution with receive
Filter membranous layer reaction is placed in being dried in vacuum drying chamber, and NF membrane is obtained.
2. water-saving Central water purification processing system according to claim 1, it is characterised in that：The former pond（1）Go out
The mouth of a river and raw water pump（2）Water inlet pass through communicating pipe（6）Connection, and raw water pump（2）Delivery port with soften pond（3）Water inlet
Mouth passes through communicating pipe（6）Connection.
3. water-saving Central water purification processing system according to claim 1, it is characterised in that：5 micron polypropylene melts
Blown filter accurate filter（7）Delivery port and high-pressure pump（8）Water inlet pass through communicating pipe（6）Connection, and high-pressure pump（8）'s
Delivery port and nano-filtration membrane filter（9）Water inlet pass through communicating pipe（6）Connection.
4. water-saving Central water purification processing system according to claim 1, it is characterised in that：The ultraviolet sterilizer（10）
Inside it is provided with uviol lamp.
5. water-saving Central water purification processing system according to claim 1, it is characterised in that：Described polymer ultrafiltration membrane
Material is any one in polyether sulfone, polyacrylonitrile, polypropylene, polyethylene, polycaprolactam or poly- furan alcohol.
6. the treatment side of the water-saving Central water purification processing system according to any one claim in claim 1 to 5
Method, it is characterised in that：
When using, the raw water pump（2）By former pond（1）Interior water is pumped into softening pond（3）It is interior, by softening pond（3）After softening
Water pass through communicating pipe（6）Into 20 micron polypropylene melt-blown filter micro-filters（4）Filtration treatment is carried out, the water after filtering leads to
Spend communicating pipe（6）Into active carbon filter（5）Carry out secondary filter；
Water after secondary filter passes through communicating pipe（6）Into 5 micron polypropylene melt-blown filter accurate filters（7）Carry out at filtering
After reason, high-pressure pump（8）By 5 micron polypropylene melt-blown filter accurate filters（7）Water after interior filtering is pumped into nano-filtration membrane filter
（9）Filtered, the water after filtering enters ultraviolet sterilizer（10）Sterilization processing is carried out, communicating pipe is passed through after sterilization processing（6）
Into water purifying tank（11）For using, that is, complete clean water treatment.
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| JPS60220115A (en) * | 1984-04-16 | 1985-11-02 | Yamazaki Keiichiro | Water purifier |
| US20030034292A1 (en) * | 2001-08-17 | 2003-02-20 | Matthew Rela | Water purifier |
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Application publication date: 20170531 |