CN108083492A - A kind of seawater desalination reverse osmosis pretreatment system - Google Patents
A kind of seawater desalination reverse osmosis pretreatment system Download PDFInfo
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- CN108083492A CN108083492A CN201711193479.5A CN201711193479A CN108083492A CN 108083492 A CN108083492 A CN 108083492A CN 201711193479 A CN201711193479 A CN 201711193479A CN 108083492 A CN108083492 A CN 108083492A
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- water
- ceramic membrane
- water inlet
- filter device
- outlet
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- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 17
- 239000013535 sea water Substances 0.000 title claims abstract description 17
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000012528 membrane Substances 0.000 claims abstract description 43
- 239000000919 ceramic Substances 0.000 claims abstract description 30
- 238000005189 flocculation Methods 0.000 claims abstract description 18
- 230000016615 flocculation Effects 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- 238000001914 filtration Methods 0.000 claims abstract description 16
- 238000004062 sedimentation Methods 0.000 claims abstract description 15
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 241000894006 Bacteria Species 0.000 abstract description 5
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 abstract description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000460 chlorine Substances 0.000 abstract description 2
- 229910052801 chlorine Inorganic materials 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- 238000000108 ultra-filtration Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000009287 sand filtration Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- -1 phenolic aldehyde Chemical class 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003911 water pollution 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
-
- 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
- C02F1/44—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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of seawater desalination reverse osmosis pretreatment systems, there are high low heads between the water outlet of flocculation sedimentation tank and the first water inlet of ceramic membrane filter device, the discharge outlet of ceramic membrane filter device is connected by pipeline with the pump mouth of filtering production water pump, the discharge outlet of filtering production water pump is connected by discharge pipe line with producing the water inlet in pond, the second water inlet of ceramic membrane filter device is connected by the discharge outlet of pipeline and gas-water mixer, the exhaust outlet of ozone generator is connected by the air intake of gas exhaust piping and gas-water mixer, the water inlet of gas-water mixer is connected by tap line with above-mentioned discharge pipe line.Pretreatment of the system as seawater reverse osmosis membrane, chlorine need not be added to carry out disinfection, reducing agent need not be added in production water, effluent quality is hardly by raw water quality influence of fluctuations, it is good to the thermal adaptability of water inlet, water outlet SDI is less than 3, and delivery turbidity is less than 0.2, and removal of bacteria rate stabilization is in 4.5log.
Description
Technical field
The present invention relates to the technical field of seawater desalination system, especially a kind of seawater desalination reverse osmosis pretreatment system,
More particularly to its mechanical connecting structure.
Background technology
Conventional sea water desalination is usually sunk to remove the bacterial micro-organism in seawater in the sterilization of water inlet chlorination, through flocculating
Behind shallow lake, conventional filtration is carried out（Such as sand filtration, multi-medium filtering）Or be filtered by polymeric hollow fibre ultrafiltration membrane,
Enter reverse osmosis membrane system after adding reducing agent again.
Conventional filtration（Such as sand filtration, multi-medium filtering）It is undesirable to the removal effect of bacterium, it is impossible to ensure RO feedwater nothings
Bacterium, and water outlet SDI is unstable, reduces the service life of reverse osmosis membrane.The pretreatment of polymeric ultrafiltration embrane method is most widely used, tool
Have the advantages that floor space is small, equipment is few, pollution is light, pretreatment effluent quality is high, but embrane method is relatively low to molecular mass contains
Oxygen organic such as acetone, phenolic aldehyde, propionic acid is nearly unavailable, there is that the more conventional filtering technique of operation stability is poor, film is easily got dirty in itself
Dye, the decline of membrane flux are fast, film is replaced frequently, it is difficult to ensure that the continuity of production, especially due to hollow-fibre membrane film wire is broken
Caused by water pollution, more aggravated the produce load of reverse osmosis membrane, influenced the service life and water yield of reverse osmosis membrane, from
And add production cost.
The content of the invention
It is an object of the invention to provide a kind of seawater desalination reverse osmosis pretreatment systems, and Electricity Functional is surveyed with sensing, can
Electricity is surveyed faster and more easily to carry out electrical verification.In addition when universal meter is used to measure, if testee is with height
Voltage, test pencil can send acousto-optic prompting before measured object is contacted, can so user be reminded to take care.Sensing test pencil needs
The power supply wanted can be provided by universal meter battery, mitigate test pencil weight.Overcome shortcoming and defect in the prior art.
To achieve these goals, the technical scheme is that：A kind of seawater desalination reverse osmosis pretreatment system, it is described
System includes flocculation sedimentation tank, and the inlet of flocculation sedimentation tank is equipped with preposition grid, for intercepting large granular impurity, flocculation sediment
The water outlet in pond is connected by the first water inlet of oblique runner and ceramic membrane filter device, the water outlet and pottery of flocculation sedimentation tank
There are high low heads, the water outlet of flocculation sedimentation tank between first water inlet of porcelain film filter to be higher than ceramic membrane filter device
The first water inlet, the discharge outlet of ceramic membrane filter device be connected by pipeline with the pump mouth of filtering production water pump, and water is produced in filtering
The discharge outlet of pump be connected by discharge pipe line with producing the water inlet in pond, the second water inlet of ceramic membrane filter device by pipeline and
The discharge outlet connection of gas-water mixer, the exhaust outlet of ozone generator are connected by the air intake of gas exhaust piping and gas-water mixer
It connects, the water inlet of gas-water mixer is connected by tap line with above-mentioned discharge pipe line, the connection of tap line and discharge pipe line
Point is equipped with tee pipe coupling, and tap line is equipped with the first control valve, the draining between tee pipe coupling and production pond water inlet
Pipeline is equipped with the second control valve.
The invention discloses a kind of seawater desalination reverse osmosis pretreatment system, pre- place of the system as seawater reverse osmosis membrane
Reason, need not add chlorine and carry out disinfection, and need not add reducing agent in production water, effluent quality is hardly fluctuated shadow by raw water quality
It rings, good to the thermal adaptability of water inlet, water outlet SDI is less than 3, and delivery turbidity is less than 0.2, and removal of bacteria rate stabilization is in 4.5log.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Wherein：
1st, flocculation sedimentation tank；
2nd, oblique runner；
3rd, ceramic membrane filter device；
4th, filtering production water pump；
5th, discharge pipe line；
6th, pond is produced；
7th, gas-water mixer；
8th, tap line；
9th, tap line；
10th, tee pipe coupling；
11st, the first control valve；
12nd, the second control valve.
Specific embodiment
With reference to the accompanying drawings, the present invention is further described below.
The invention discloses a kind of seawater desalination reverse osmosis pretreatment systems, are different from the prior art and are：The system
System includes flocculation sedimentation tank 1, and the inlet of flocculation sedimentation tank 1 is equipped with preposition grid, for intercepting large granular impurity, flocculation sediment
The water outlet in pond 1 is connected by oblique runner 2 with the first water inlet of ceramic membrane filter device 3, the water outlet of flocculation sedimentation tank 1
There are high low heads, the water outlet of flocculation sedimentation tank 1 between the first water inlet of ceramic membrane filter device 3 to be higher than ceramic membrane mistake
The first water inlet of device 3 is filtered, the discharge outlet of ceramic membrane filter device 3 is connected by pipeline with the pump mouth of filtering production water pump 4,
The discharge outlet of filtering production water pump 4 is connected by discharge pipe line 5 with producing the water inlet in pond 6, and ceramic membrane filter device 3 second enters water
Mouth is connected by pipeline with the discharge outlet of gas-water mixer 7, and the exhaust outlet of ozone generator 8 passes through gas exhaust piping and mixing wastewater with air
The air intake connection of device 7, the water inlet of gas-water mixer 7 are connected by tap line 9 with above-mentioned discharge pipe line 5, tap line 9
Tee pipe coupling 10 is equipped with the tie point of discharge pipe line 5, tap line 9 is equipped with the first control valve 11, tee pipe coupling 10
Discharge pipe line 5 between production 6 water inlet of pond is equipped with the second control valve 12.
In the specific implementation, ceramic membrane is equipped in the ceramic membrane filter device 3, the ceramic membrane is non-right
Claim film, ceramic membrane punishes the fenestra for being furnished with asymmetric distribution, and the aperture of fenestra is 50nm-200nm.The ceramic membrane
It is formed for alundum (Al2O3) through high temperature sintering.The filtering stable effluent quality of film, membrane body high mechanical strength, service life is long, tool
The temperature range of adaptation is big（0~60℃）Characteristic, compared under low temperature and higher temperature under easily fracture of wire polymeric ultrafiltration membranes
For, with sizable superiority, membrane material chemical stability is good, has extraordinary inoxidizability ability, acid and alkali-resistance
And biological corrosion characteristic, cooperation add ozone and carry out oxidation disinfection in film surface, membrane flux can be greatly improved, bacterium goes
Except effect is good, the low organic matter of molecular weight can be oxidized to water and carbon dioxide.
In the specific implementation, raw water seawater enters ceramic membrane mistake by the water of simple grid, flocculation sediment by gravity flow
It filters in device, by filtering the negative-pressure ward of production water pump, qualification production current are to production pond, wherein production water passes through automatic valve all the way
It flows into after gas and water mixer is mixed with the ozone that ozone generator generates and enters in ceramic membrane filter device, according to water inlet
Water quality situation adjusts the aperture of operated pneumatic valve and the ozone amount of ozone generator generation, determines rational dosage.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, it is impossible to assert
Present invention specific implementation is confined to these above-mentioned explanations.For those of ordinary skill in the art to which the present invention belongs,
Without departing from the inventive concept of the premise, several simple deduction or replace can also be made, should all be considered as belonging to the present invention
Protection domain.
Claims (3)
1. a kind of seawater desalination reverse osmosis pretreatment system, it is characterised in that：The system comprises flocculation sedimentation tanks（1）, flocculation
Sedimentation basin（1）Inlet be equipped with preposition grid, for intercepting large granular impurity, flocculation sedimentation tank（1）Water outlet pass through it is oblique
To runner（2）With ceramic membrane filter device（3）The first water inlet connection, flocculation sedimentation tank（1）Water outlet and ceramic membrane mistake
Filter device（3）The first water inlet between there are high low head, flocculation sedimentation tanks（1）Water outlet be higher than ceramic membrane filter device
（3）The first water inlet, ceramic membrane filter device（3）Discharge outlet pass through pipeline with filtering production water pump（4）Pump mouth connection,
Filtering production water pump（4）Discharge outlet pass through discharge pipe line（5）With producing pond（6）Water inlet connection, ceramic membrane filter device（3）
Second water inlet passes through pipeline and gas-water mixer（7）Discharge outlet connection, ozone generator（8）Exhaust outlet pass through exhaust pipe
Road and gas-water mixer（7）Air intake connection, gas-water mixer（7）Water inlet pass through tap line（9）With above-mentioned draining
Pipeline（5）Connection, tap line（9）With discharge pipe line（5）Tie point be equipped with tee pipe coupling（10）, tap line（9）On
Equipped with the first control valve（11）, tee pipe coupling（10）With producing pond（6）Discharge pipe line between water inlet（5）It is equipped with second
Control valve（12）.
2. a kind of seawater desalination reverse osmosis pretreatment system according to claim 1, it is characterised in that：The ceramic membrane mistake
Filter device（3）Interior to be equipped with ceramic membrane, the ceramic membrane is anisotropic membrane, and ceramic membrane punishment is furnished with asymmetric point
The fenestra of cloth, the aperture of fenestra is 50nm-200nm.
3. a kind of seawater desalination reverse osmosis pretreatment system according to claim 2, it is characterised in that：The flat ceramic
Film forms for alundum (Al2O3) through high temperature sintering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711193479.5A CN108083492A (en) | 2017-11-24 | 2017-11-24 | A kind of seawater desalination reverse osmosis pretreatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711193479.5A CN108083492A (en) | 2017-11-24 | 2017-11-24 | A kind of seawater desalination reverse osmosis pretreatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108083492A true CN108083492A (en) | 2018-05-29 |
Family
ID=62172281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711193479.5A Pending CN108083492A (en) | 2017-11-24 | 2017-11-24 | A kind of seawater desalination reverse osmosis pretreatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108083492A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1673100A (en) * | 2005-03-25 | 2005-09-28 | 池万清 | Pre-treating method and apparatus for desalting sea water |
| CN1736905A (en) * | 2005-08-08 | 2006-02-22 | 南京工业大学 | Ceramic Membrane Pretreatment Method in Seawater Desalination |
| CN202070291U (en) * | 2011-05-25 | 2011-12-14 | 厦门绿邦膜技术有限公司 | Online cleaning device for ceramic membranes |
| CN102424497A (en) * | 2011-12-29 | 2012-04-25 | 江苏久吾高科技股份有限公司 | Emergency water supply equipment |
| CN106430739A (en) * | 2016-12-05 | 2017-02-22 | 华电水务工程有限公司 | Sea-water-desalination pre-treatment system and technology for nuclear power station |
| CN207567029U (en) * | 2017-11-24 | 2018-07-03 | 上海巴安水务股份有限公司 | A kind of seawater desalination reverse osmosis pretreatment system |
-
2017
- 2017-11-24 CN CN201711193479.5A patent/CN108083492A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1673100A (en) * | 2005-03-25 | 2005-09-28 | 池万清 | Pre-treating method and apparatus for desalting sea water |
| CN1736905A (en) * | 2005-08-08 | 2006-02-22 | 南京工业大学 | Ceramic Membrane Pretreatment Method in Seawater Desalination |
| CN202070291U (en) * | 2011-05-25 | 2011-12-14 | 厦门绿邦膜技术有限公司 | Online cleaning device for ceramic membranes |
| CN102424497A (en) * | 2011-12-29 | 2012-04-25 | 江苏久吾高科技股份有限公司 | Emergency water supply equipment |
| CN106430739A (en) * | 2016-12-05 | 2017-02-22 | 华电水务工程有限公司 | Sea-water-desalination pre-treatment system and technology for nuclear power station |
| CN207567029U (en) * | 2017-11-24 | 2018-07-03 | 上海巴安水务股份有限公司 | A kind of seawater desalination reverse osmosis pretreatment system |
Non-Patent Citations (1)
| Title |
|---|
| 丁启圣等编: "《新型实用过滤技术》", 31 July 2011, 冶金工业出版社, pages: 514 - 518 * |
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