CN109020040A - A kind of desalination plant and method - Google Patents
A kind of desalination plant and method Download PDFInfo
- Publication number
- CN109020040A CN109020040A CN201810874261.4A CN201810874261A CN109020040A CN 109020040 A CN109020040 A CN 109020040A CN 201810874261 A CN201810874261 A CN 201810874261A CN 109020040 A CN109020040 A CN 109020040A
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- China
- Prior art keywords
- seawater
- reverse osmosis
- desalination plant
- desalting
- neodymium iron
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- 238000010612 desalination reaction Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000013535 sea water Substances 0.000 claims abstract description 148
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 51
- 239000012528 membrane Substances 0.000 claims abstract description 39
- 238000011033 desalting Methods 0.000 claims abstract description 35
- 238000001914 filtration Methods 0.000 claims abstract description 34
- 150000003839 salts Chemical class 0.000 claims abstract description 32
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910001172 neodymium magnet Inorganic materials 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000001728 nano-filtration Methods 0.000 claims description 16
- 238000000108 ultra-filtration Methods 0.000 claims description 16
- 241000195493 Cryptophyta Species 0.000 claims description 14
- 244000005700 microbiome Species 0.000 claims description 11
- 239000003610 charcoal Substances 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000005374 membrane filtration Methods 0.000 claims description 4
- 239000013618 particulate matter Substances 0.000 claims 1
- 238000004659 sterilization and disinfection Methods 0.000 claims 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 abstract description 7
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 abstract description 7
- 229910001424 calcium ion Inorganic materials 0.000 abstract description 7
- 229910001425 magnesium ion Inorganic materials 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002384 drinking water standard Substances 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 238000007781 pre-processing Methods 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 27
- 239000013049 sediment Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 4
- 235000013162 Cocos nucifera Nutrition 0.000 description 3
- 244000060011 Cocos nucifera Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 229910021532 Calcite Inorganic materials 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- PXAWCNYZAWMWIC-UHFFFAOYSA-N [Fe].[Nd] Chemical compound [Fe].[Nd] PXAWCNYZAWMWIC-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000249 desinfective effect Effects 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 150000003384 small molecules Chemical group 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000007701 flash-distillation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- -1 salt ion Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 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
-
- 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
- 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
- C02F1/442—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
- C02F1/44—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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/481—Treatment of water, waste water, or sewage with magnetic or electric fields using permanent magnets
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
Strong chinaware in duct type neodymium iron boron is arranged in desalination plant of the invention, by pre-processing to seawater, decomposes the calcium ions and magnesium ions in geavy salt, keeps its soft, prevent crystalline solid from adhering to and blocking reverse osmosis fenestra, with the adequate service life of protective film；In addition, in the duct type neodymium iron boron strong chinaware setting, reduce the complicated link for refiltering removal after needing to add sterilized pharmaceutics in traditional desalting process, simplify production technology；After two steps ro film filtering of the invention, salt content is down to 20ppm hereinafter, meeting drinking water standard；Desalination plant of the invention, volume reduce, and high-efficiency environment friendly improves economic benefit；The service life longest of reverse osmosis membrane in desalination plant of the invention can reach 3 years or so.The magnetic field strength for being suitable for and the flow rate of water flow across magnetic field are determined in method for desalting seawater of the invention, so that the calcium ions and magnesium ions after decomposing still is kept soft dispersity when passing through reverse osmosis membrane, not in fenestra at dirt.
Description
Technical field
The invention belongs to field of sea water desalting technology, and in particular to a kind of desalination plant and method.
Background technique
Shortage of fresh water problem is just increasingly influencing the sustainable development of national economy and society, and sea water desalination is to solve edge
The effective way of Haiti area shortage of water resources problem.The method for desalting seawater industrially applied at present is mainly that embrane method is (reverse osmosis
) and thermal method (multistage flash distillation MSF and low-temperature multi-effect MED) RO.Reverse osmosis (RO) desalination especially by by seawater after high-pressure pump pressurizes,
By reverse osmosis membrane assembly, the water by reverse osmosis membrane is fresh water.But reverse osmosis (RO) method is during desalinizing seawater, at
Dirt matter Crystallization Plugging RO film filter hole, cost of equipment maintenance is high, and production efficiency needs to be further increased；In addition, traditional
Reverse osmosis (RO) embrane method pre-processes using ion exchange resin come absorbing calcium ions and magnesium ions, and needs repeated flushing regenerating resin, with
And add chemical reagent sterilizing the processing steps such as algae removal and subsequent filtering both chemical reagent, filtering technique is many and diverse, and run at
This height.
Summary of the invention
Based on problem above, the object of the present invention is to provide a kind of method for desalting seawater, make into dirty substance crystals and become
Change, reduce RO Pore Blocking, reduces equipment operation cost.
A further object is to provide the device that the method for desalting seawater is implemented.
The technical solution of the present invention is as follows:
The present invention provides a kind of desalination plant, including water intake system, pretreatment system and sea water desalting system,
Pipeline sequential connection is passed sequentially through between each system；Wherein,
It include brine pump in the water intake system；
The pretreatment system includes strong chinaware in the PP filter element filtering device and duct type neodymium iron boron connected by pipeline,
Seawater filters out large particle, algae, microorganism after the filtering of PP filter element filtering device, reduces turbidity of sea water；By duct type
In neodymium iron boron after strong chinaware, under the action of high-intensity magnetic field, geavy salt such as calcium ions and magnesium ions in seawater etc. are decomposed, by calcite type
Crystal becomes aragonite type crystal, is not easy inside desalination plant into dirt；Meanwhile it has been proved by practice that the duct type is set
In neodymium iron boron after strong chinaware, there is sterilizing algae removal effect well to seawater, reduce in traditional desalting process and need to add
The complicated link of removal is refiltered after sterilized pharmaceutics；
The sea water desalting system includes sequentially connected ultrafiltration membrane, nanofiltration membrane, level-one high-pressure pump, first-stage reverse osmosis
Component, second level high-pressure pump and two-pass reverse osmosis component, can after the ultrafiltration membrane and nanofiltration membrane of the sea water desalting system
The salt content filtering in seawater is reduced 50% or more, after ultrafiltration membrane and nanofiltration membrane, then through two steps ro component
After filtering, TDS value can be obtained in 5 pure water below.
Ultrafiltration membrane aperture is 0.01 μm, and nanofiltration membrane aperture is 0.001 μm, the RO film of the firsts and seconds reverse osmosis module
Pore size filter be 0.0001 μm.
Desalination plant according to the present invention, the PP filter element filtering device is after quantum storehouse carries out quantum treatment, band
Energy of a quantum plays inhibiting effect to microorganism and algae；Macromolecular key is produced fracture simultaneously, forms small molecule structure, just
It is decomposed in geavy salt molecule in magnetic field.
Desalination plant according to the present invention, inside and outside two layers of the filter layer that successively decreases of the PP filter element filtering device point, outer layer
Filter layer filter opening aperture is 5 μm, and internal layer filter layer filter opening aperture is 1 μm.
Desalination plant according to the present invention, two magnetic pole pitch of strong chinaware are 0.5- in the duct type neodymium iron boron
When 0.7cm, guarantee sufficiently to soften geavy salt in seawater compared with strong magnetic field action, prevents from blocking fenestra at dirt on reverse osmosis (RO) film.
Desalination plant according to the present invention, strong chinaware between PP filter element filtering device in the duct type neodymium iron boron
Connecting pipe be curved shape pipeline, using micro- hydrodynamic force original principle, high pressure water flow is hit by bend, makes fluid boundary layer work
Jump separation, convenient for the more preferable reception of magnetic field energy, makes hydrone self-energy more into after the magnetic field of the strong interior strong chinaware of neodymium iron boron
Saturation, geavy salt molecule are also more easier to decompose.In order to further enhance its effect, further, close to the duct type neodymium iron
90 ° of corner is set on the shaped form pipeline of strong chinaware inlet in boron.
Desalination plant according to the present invention further connects between level-one high-pressure pump and first-stage reverse osmosis component
Setting supersonic generator is connect, further cleaning desalination plant wall is played, the work for preventing reverse osmosis membranous wall attachment dirt brilliant
With.
Desalination plant according to the present invention further includes being connected with the sea water desalting systematicness by pipeline sequence
The active carbon processing system connect, it is preferred to use cocoanut active charcoal.
Desalination plant according to the present invention, further include connect with the active carbon processing system pipeline ultraviolet light+
Ozone disinfecting system.
The present invention provides a kind of method for desalting seawater, comprising the following steps:
(1) after obtaining seawater, seawater is input to PP filter element filtering device and is filtered, filter off the large particle in seawater
Matter, algae, microorganism reduce turbidity of sea water, obtain the first pre-treating seawater；
(2) make first pre-treating seawater by neodymium iron boron high-intensity magnetic field, obtain whole pre-treating seawater, geavy salt therein from
Son decomposes, and the sediment softened is intercepted by RO film, is discharged with waste water, and is not attached to fenestra into dirt；
(3) the whole pre-treating seawater is passed through into ultrafiltration membrane and nanofiltration membrane respectively, first is obtained and desalinizes seawater, through this
After step process, the salt content in former seawater filters off 50% or more；
(4) described first is desalinized seawater and sequentially inputs first-stage reverse osmosis component and the progress of two-pass reverse osmosis component mistake again
Filter, obtains salt content 20ppm below second and desalinizes seawater.
Method for desalting seawater according to the present invention, in step (2), the flow velocity of first pre-treating seawater is in 51m/s
More than, magnetic field strength guarantees that the geavy salt ion isolation effect in seawater is more preferable more than 7500 Gausses, and is not easy quickly after separating
It recombines and to form deposit and be attached to fenestra surface.
Method for desalting seawater according to the present invention further includes,
It (5) will treated second desalinizes seawater charcoal treated through step (4)；After charcoal treated, Ke Yigai
The mouthfeel of kind water, is suitable for drinking；
(6) will through step (5), treated second desalinizes seawater and sterilize, complete sea water desalination.
The invention has the benefit that
Strong chinaware in duct type neodymium iron boron is arranged in desalination plant of the invention, by being pre-processed to seawater, point
The calcium ions and magnesium ions in geavy salt are solved, keep its soft, prevent crystalline solid from adhering to and blocking reverse osmosis fenestra, with the reasonable employment of protective film
Service life；In addition, in the duct type neodymium iron boron strong chinaware setting, reduce and need to add sterilizing in traditional desalting process
The complicated link of removal is refiltered after medicament, simplifies production technology；After two steps ro film filtering of the invention, salt content is down to
20ppm is hereinafter, meet drinking water standard；Through the improved desalination plant of the present invention, volume reduces, and operation cost reduces,
High-efficiency environment friendly improves economic benefit；The service life of reverse osmosis membrane in desalination plant of the invention was at 3 years or more.
Method for desalting seawater of the invention is set in conjunction with strong chinaware in duct type neodymium iron boron in the desalination plant
It sets, desalinating process is adaptively adjusted, keep sea water desalination process more easy, determine the magnetic field strength for being suitable for and the water across magnetic field
Flow velocity is flowed, so that the calcium ions and magnesium ions after decomposing still is kept soft dispersity when passing through reverse osmosis membrane, not in fenestra at dirt.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the connection relationship diagram between each system of the desalination plant of embodiment 1；
Fig. 2 is the connection relationship diagram between each system of the desalination plant of embodiment 4；
Fig. 3 is the connection relationship diagram between each system of the desalination plant of embodiment 6.
1, water intake system in figure；2, pretreatment system；3, sea water desalting system；4, active carbon processing system；5, it kills
Fungus strain system；21, PP filter element filtering device；22, strong chinaware in duct type neodymium iron boron；31, ultrafiltration membrane；32, nanofiltration membrane；33, level-one
High-pressure pump；34, first-stage reverse osmosis component；35, second level high-pressure pump；36, two-pass reverse osmosis component；37, supersonic generator.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Embodiment 1
A kind of desalination plant, including water intake system 1, pretreatment system 2 and sea water desalting system 3, each system
Between pass sequentially through pipeline sequential connection；Wherein,
The pretreatment system 2 includes strong chinaware 22 in PP filter element filtering device 21 and duct type neodymium iron boron, the PP filter
Core filter device 21 connects strong chinaware 22 in the duct type neodymium iron boron by pipeline；The PP filter element filtering device 21 divides inside and outside
Two layers of filter layer that successively decreases, outer filter layers filter opening aperture are 5 μm, and internal layer filter layer filter opening aperture is 1 μm；The duct type neodymium iron
Two magnetic pole pitch of strong chinaware 22 are adaptively adjusted between 0.5-0.7cm according to the width of magnetic field force and water stream channel in boron, shape
At narrow water stream channel, increase hydraulic pressure, keep hydro jet magnetic fields strong, sufficiently softens geavy salt in seawater, prevent anti-
It permeates on RO film into dirt, blocks fenestra；
Seawater filters out large particle, algae, microorganism after the filtering of PP filter element filtering device 21, reduces turbidity of sea water；
After chinaware 22 strong in duct type neodymium iron boron, under the action of high-intensity magnetic field, the generations such as geavy salt such as calcium ions and magnesium ions in seawater point
Solution, becomes aragonite type crystal by calcite type crystal, is not easy at dirt inside desalination plant, and has certain sterilizing
Algae removal effect, reduces the complicated link that removal is refiltered after needing to add sterilized pharmaceutics in traditional desalting process；
The sea water desalting system 3 includes sequentially connected ultrafiltration membrane 31, nanofiltration membrane 32, level-one high-pressure pump 33, one
Grade reverse osmosis module 34, second level high-pressure pump 35 and two-pass reverse osmosis component 36；The ultrafiltration membrane 31 of the sea water desalting system 3
The salt content in seawater can be filtered after being filtered with nanofiltration membrane 32 and reduce 50% or more, filtered through ultrafiltration membrane 31 and nanofiltration membrane 32
Afterwards, then after two steps ro component filters, TDS value can be obtained in 5 pure water below.
Based on above method for desalting seawater, comprising the following steps:
(1) after obtaining seawater, seawater is input to PP filter element filtering device 21 and is filtered, filter off the bulky grain in seawater
Substance, algae, microorganism reduce turbidity of sea water, obtain the first pre-treating seawater；
(2) make first pre-treating seawater by neodymium iron boron high-intensity magnetic field, obtain whole pre-treating seawater, geavy salt therein from
Son decomposes, and the sediment softened is intercepted by RO film, is discharged with waste water, and is not attached to fenestra into dirt；Described first
The flow velocity of pre-treating seawater is in 51m/s or more, and magnetic field strength is more than 7500 Gausses；
(3) the whole pre-treating seawater is passed through into ultrafiltration membrane 31 respectively and nanofiltration membrane 32 filters, first is obtained and desalinizes seawater,
After this step process, the salt content in former seawater filters off 50% or more；
(4) described first is desalinized seawater and sequentially inputs first-stage reverse osmosis component 34 and the progress of two-pass reverse osmosis component 36 again
Secondary filtering obtains salt content 20ppm below second and desalinizes seawater.
Embodiment 2
In the technology of desalination plant specific embodiment 1 described above, the PP filter element filtering device 21 is through quantum
Storehouse carries out quantum treatment, plays inhibiting effect to microorganism and algae；Macromolecular key is produced fracture simultaneously, forms small molecule knot
Structure decomposes convenient for geavy salt molecule in magnetic field.
Based on above method for desalting seawater, comprising the following steps:
(1) after obtaining seawater, seawater is input to PP filter element filtering device 21 and is filtered, filter off the bulky grain in seawater
Substance, algae, microorganism reduce turbidity of sea water, obtain the first pre-treating seawater；
(2) make first pre-treating seawater by neodymium iron boron high-intensity magnetic field, obtain whole pre-treating seawater, geavy salt therein from
Son decomposes, and the sediment softened is intercepted by RO film, is discharged with waste water, and is not attached to fenestra into dirt；Described first
The flow velocity of pre-treating seawater is in 51m/s or more, magnetic field strength 4.5T；
(3) the whole pre-treating seawater is passed through into ultrafiltration membrane 31 respectively and nanofiltration membrane 32 filters, first is obtained and desalinizes seawater,
After this step process, the salt content in former seawater filters off 50% or more；
(4) described first is desalinized seawater and sequentially inputs first-stage reverse osmosis component 34 and the progress of two-pass reverse osmosis component 36 again
Secondary filtering obtains salt content 20ppm below second and desalinizes seawater.
Embodiment 3
In the technology of desalination plant specific embodiment 1 described above, strong chinaware 22 in the duct type neodymium iron boron
Connecting pipe between PP filter element filtering device 21 is curved shape pipeline.Preferably, close to strong magnetic in the duct type neodymium iron boron
90 ° of corner is set on the shaped form pipeline of 22 inlet of device.
Based on above method for desalting seawater, comprising the following steps:
(1) after obtaining seawater, seawater is input to PP filter element filtering device 21 and is filtered, filter off the bulky grain in seawater
Substance, algae, microorganism reduce turbidity of sea water, obtain the first pre-treating seawater；
(2) make first pre-treating seawater by neodymium iron boron high-intensity magnetic field, obtain whole pre-treating seawater, geavy salt therein from
Son decomposes, and the sediment softened is intercepted by RO film, is discharged with waste water, and is not attached to fenestra into dirt；Described first
The flow velocity of pre-treating seawater is in 51m/s or more, and magnetic field strength is more than 7500 Gausses；
(3) the whole pre-treating seawater is passed through into ultrafiltration membrane 31 respectively and nanofiltration membrane 32 filters, first is obtained and desalinizes seawater,
After this step process, the salt content in former seawater filters off 50% or more；
(4) described first is desalinized seawater and sequentially inputs first-stage reverse osmosis component 34 and the progress of two-pass reverse osmosis component 36 again
Secondary filtering obtains salt content 20ppm below second and desalinizes seawater.
Embodiment 4
In the technology of desalination plant specific embodiment 2 described above, in level-one high-pressure pump 33 and first-stage reverse osmosis
Connection setting supersonic generator 37 between component 34, plays further cleaning desalination plant wall, prevents reverse osmosis membrane
The brilliant effect of wall attachment dirt.
Embodiment 5
In the technology of desalination plant specific embodiment 1 described above, setting and the sea water desalting system 3
Property by pipeline be linked in sequence active carbon processing system 4.
Based on above method for desalting seawater, comprising the following steps:
(1) after obtaining seawater, seawater is input to PP filter element filtering device 21 and is filtered, filter off the bulky grain in seawater
Substance, algae, microorganism reduce turbidity of sea water, obtain the first pre-treating seawater；
(2) make first pre-treating seawater by neodymium iron boron high-intensity magnetic field, obtain whole pre-treating seawater, geavy salt therein from
Son decomposes, and the sediment softened is intercepted by RO film, is discharged with waste water, and is not attached to fenestra into dirt；Described first
The flow velocity of pre-treating seawater is in 51m/s or more, magnetic field strength 2.5T；
(3) the whole pre-treating seawater is passed through into ultrafiltration membrane 31 respectively and nanofiltration membrane 32 filters, first is obtained and desalinizes seawater,
After this step process, the salt content in former seawater filters off 50% or more；
(4) described first is desalinized seawater and sequentially inputs first-stage reverse osmosis component 34 and the progress of two-pass reverse osmosis component 36 again
Secondary filtering obtains salt content 20ppm below second and desalinizes seawater；
(5) will through step (4), treated second desalinizes seawater and handle through cocoanut active charcoal, complete desalination, obtain pure
Water.
Embodiment 6
In the technology of desalination plant specific embodiment 1 described above, setting and the sea water desalting system 3
The cocoanut active charcoal processing system 4 and ultraviolet light+ozone disinfecting system 5 being linked in sequence by pipeline.
Based on above method for desalting seawater, comprising the following steps:
(1) after obtaining seawater, seawater is input to PP filter element filtering device 21 and is filtered, filter off the bulky grain in seawater
Substance, algae, microorganism reduce turbidity of sea water, obtain the first pre-treating seawater；
(2) make first pre-treating seawater by neodymium iron boron high-intensity magnetic field, obtain whole pre-treating seawater, geavy salt therein from
Son decomposes, and the sediment softened is intercepted by RO film, is discharged with waste water, and is not attached to fenestra into dirt；Described first
The flow velocity of pre-treating seawater is in 51m/s or more, magnetic field strength 2.5T；
(3) the whole pre-treating seawater is passed through into ultrafiltration membrane 31 respectively and nanofiltration membrane 32 filters, first is obtained and desalinizes seawater,
After this step process, the salt content in former seawater filters off 50% or more；
(4) described first is desalinized seawater and sequentially inputs first-stage reverse osmosis component 34 and the progress of two-pass reverse osmosis component 36 again
Secondary filtering obtains salt content 20ppm below second and desalinizes seawater；
(5) will through step (4), treated second desalinizes seawater charcoal treated, microelement is then added；
(6) will through step (5), treated second desalinizes seawater and sterilize, complete sea water desalination, obtain pure water.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of desalination plant, which is characterized in that including water intake system (1), pretreatment system (2) and sea water desalting
System (3) passes sequentially through pipeline sequential connection between each system；Wherein,
The pretreatment system (2) includes strong magnetic in the PP filter element filtering device (21) and duct type neodymium iron boron connected by pipeline
Device (22),
The sea water desalting system (3) includes sequentially connected ultrafiltration membrane (31), nanofiltration membrane (32), level-one high-pressure pump
(33), first-stage reverse osmosis component (34), second level high-pressure pump (35) and two-pass reverse osmosis component (36).
2. desalination plant according to claim 1, which is characterized in that in level-one high-pressure pump (33) and first-stage reverse osmosis
Connection setting supersonic generator (37) between component (34).
3. desalination plant according to claim 1, which is characterized in that strong chinaware (22) in the duct type neodymium iron boron
Two magnetic pole pitch be 0.5-0.7cm.
4. the desalting plant of seawater according to claim 1, which is characterized in that strong chinaware in the duct type neodymium iron boron
(22) the connecting pipe between PP filter element filtering device (21) is curved shape pipeline.
5. desalination plant according to claim 4, which is characterized in that close to strong chinaware in the duct type neodymium iron boron
(22) 90 ° of corner is set on the shaped form pipeline of inlet.
6. desalination plant according to claim 1, which is characterized in that further include and the sea water desalting system
(3) the active carbon processing system (4) being linked in sequence by pipeline.
7. desalination plant according to claim 6, which is characterized in that further include and the active carbon processing system
(4) disinfection system (5) of pipeline connection.
8. a kind of method for desalting seawater, which comprises the following steps:
(1) obtain seawater after, seawater is input to PP filter element filtering device and is filtered, filter off seawater in large particulate matter,
Algae, microorganism reduce turbidity of sea water, obtain the first pre-treating seawater；
(2) make first pre-treating seawater by neodymium iron boron high-intensity magnetic field, obtain whole pre-treating seawater；
(3) the whole pre-treating seawater is passed through into ultrafiltration membrane and nanofiltration membrane respectively, first is obtained and desalinizes seawater；
(4) described first is desalinized seawater and sequentially inputs first-stage reverse osmosis component and two-pass reverse osmosis component is for re-filtering,
Salt content 20ppm below second is obtained to desalinize seawater.
9. method for desalting seawater according to claim 1, which is characterized in that in step (2), first pretreatment sea
The flow velocity of water is in 51m/s or more, and magnetic field strength is more than 7500 Gausses.
10. method for desalting seawater according to claim 1, which is characterized in that further include,
It (5) will treated second desalinizes seawater charcoal treated through step (4)；
(6) will through step (5), treated second desalinizes seawater and sterilize, complete sea water desalination.
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