CN108046493A - A kind of novel ultrapure water treatment process - Google Patents
A kind of novel ultrapure water treatment process Download PDFInfo
- Publication number
- CN108046493A CN108046493A CN201711419706.1A CN201711419706A CN108046493A CN 108046493 A CN108046493 A CN 108046493A CN 201711419706 A CN201711419706 A CN 201711419706A CN 108046493 A CN108046493 A CN 108046493A
- Authority
- CN
- China
- Prior art keywords
- water
- processing
- reverse osmosis
- osmosis membrane
- treatment process
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910021642 ultra pure water Inorganic materials 0.000 title claims abstract description 44
- 239000012498 ultrapure water Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000012545 processing Methods 0.000 claims abstract description 46
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000012528 membrane Substances 0.000 claims abstract description 25
- 238000005374 membrane filtration Methods 0.000 claims abstract description 18
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 230000001954 sterilising effect Effects 0.000 claims abstract description 12
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 11
- 238000001471 micro-filtration Methods 0.000 claims abstract description 10
- 238000001179 sorption measurement Methods 0.000 claims abstract description 10
- 238000011033 desalting Methods 0.000 claims abstract description 6
- 239000008367 deionised water Substances 0.000 claims abstract description 5
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 5
- 238000009296 electrodeionization Methods 0.000 claims abstract description 5
- 239000008399 tap water Substances 0.000 claims abstract description 5
- 235000020679 tap water Nutrition 0.000 claims abstract description 5
- 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 claims description 7
- 239000000835 fiber Substances 0.000 claims description 4
- 239000003456 ion exchange resin Substances 0.000 claims description 4
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 4
- 239000003729 cation exchange resin Substances 0.000 claims description 3
- 239000003610 charcoal Substances 0.000 claims description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Natural products CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims 2
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 claims 1
- 229920002678 cellulose Polymers 0.000 claims 1
- 239000001913 cellulose Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 8
- 241000894006 Bacteria Species 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000717 retained effect Effects 0.000 description 4
- 229920002301 cellulose acetate Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000003643 water by type Substances 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
- C02F1/28—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
- C02F1/444—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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4691—Capacitive deionisation
-
- 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
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/04—Non-contaminated water, e.g. for industrial water supply for obtaining ultra-pure water
Abstract
The present invention relates to a kind of novel ultrapure water treatment process, include the following steps：（1）Pretreatment：Mechanical admixture in tap water or common deionized water is filtered out；（2）Activated carbon filters：Water after pretreatment carries out activated carbon adsorption；（3）Reverse osmosis membrane filtration：Through activated carbon adsorption, treated that water carries out reverse-osmosis treated with reverse osmosis membrane；（4）EDI processing：The first ultra-pure water is obtained after handling deep desalting by electrodeionization；（5）Ultraviolet sterilization：The first ultra-pure water obtained after EDI is handled is through ultraviolet treatment with irradiation；（6）Micro-filtration processing：Water after ultraviolet treatment with irradiation is filtered with microporous filtration, obtains the second ultra-pure water.Present invention reduces the frequency of use of ultraviolet ray generating apparatus and microporous filtration, so as to reduce the maintenance of ultraviolet ray generating apparatus and microporous filtration and maintenance cost, and then greatly reduce the use cost of ultra-pure water.
Description
Technical field
The present invention relates to water treatment fields, and in particular to a kind of novel ultrapure water treatment process.
Background technology
Ultra-pure water is widely used in the industries such as electric power, electronics, chemical industry, pharmacy, if the water quality of ultra-pure water does not reach requirement,
It will influence the quality of product or the result of scientific experiment.
At present in the processing of ultra-pure water, water is gone forward side by side after reverse osmosis membrane filtration and EDI processing, then through ultraviolet sterilization
The processing of row micro-filtration, to remove the bacterium retained in water, the high frequency use of ultraviolet sterilization apparatus and microporous filtration increases greatly
Daily maintenance and repair cost is added, so as to considerably increase the use cost of ultra-pure water, however in actual production and science
In experiment, some experiments or production process and from the bacteria effect retained in water.
The content of the invention
In order to solve the problems, such as that ultra-pure water use cost is excessively high in the prior art, the present invention provides a kind of novel ultrapure waters
Treatment process, the technique reduce the frequency of use of ultraviolet sterilization apparatus and microporous filtration, so as to reduce ultraviolet light
The maintenance of sterilizing unit and microporous filtration and maintenance cost, and then greatly reduce the use cost of ultra-pure water.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of novel ultrapure water treatment process, includes the following steps：（1）Pretreatment：It will be in tap water or common deionized water
Mechanical admixture filters out；（2）Activated carbon filters：Water after pretreatment carries out activated carbon adsorption；（3）Reverse osmosis membrane filtration：Through work
Water after property charcoal adsorption treatment carries out reverse-osmosis treated with reverse osmosis membrane；（4）EDI processing：Depth is handled by electrodeionization to remove
The first ultra-pure water is obtained after salt；（5）Ultraviolet sterilization：The first ultra-pure water obtained after EDI is handled is through ultraviolet treatment with irradiation；
（6）Micro-filtration processing：Water after ultraviolet treatment with irradiation is filtered with microporous filtration, obtains the second ultra-pure water.
When the bacteria effect that experiment or production process retain in by water, using the second ultra-pure water, and when experiment or production
When process is from the bacteria effect retained in water, will through EDI, treated that the first ultra-pure water directly uses, reduce ultraviolet light and kill
The frequency of use of bacterium device and microporous filtration so as to greatly reduce regular maintenance cost, reduces the use of ultra-pure water
Cost.
Preferably, water is through step（2）After carrying out activated carbon filtration treatment, sterilization processing, Ran Houzai are carried out with ultraviolet light
Through step（3）Carry out reverse osmosis membrane filtration processing.
Sterilized using ultraviolet light, prevent bacterium on reverse osmosis membrane or EDI processing in grow, so as to film generate
It blocks.
Preferably, pretreatment is to be carried out by sand core filter plate and fibre columns.
Mechanical admixture is filtered out, such as iron rust and other suspended matters.
Preferably, reverse osmosis membrane filtration is two-pass reverse osmosis membrane filtration.
Heavy metal ion, hardness and the salinity in water are reduced, to mitigate the load of follow-up EDI deep desaltings, is in addition prevented
EDI module foulings, influence normal use.
Preferably, reverse osmosis membrane is surface is negatively charged or the reverse osmosis membrane of the anti-organic pollution of electroneutral.
With negative electrical charge, reverse osmosis membrane surface is negatively charged or electroneutral, has prevented for most organic pollutants in water
Organic pollutants are attached on reverse osmosis membrane, so as to block reverse osmosis membrane.
Preferably, the reverse osmosis membrane is cellulose acetate rolled film.
Such film is not easy to be dissolved the blockings such as solid, colloid, particle and silicate.
Preferably, the EDI processing is two level EDI processing.
Deep desalting is carried out to water.
Preferably, first order EDI processing and second level EDI processing are cascaded structure, first order EDI processing runners load
Be cation exchange resin, what EDI processing runners in the second level loaded is Ion Exchange Resin In The Mixing Bed.
The cation exchange resin that first order EDI processing runners load can remove heavy metal ion and calcium and magnesium excessive in water
The easy fouling components such as ion ensure to flow into the water hardness index in second level EDI processing runners in level of security.
Preferably, the wavelength of ultraviolet light is 180nm-254nm.
Kill the microorganism retained in water.
Preferably, micro-filtration membrane aperture is 0.2-0.3 μm.
Particle and bacterium corpse in water removal are removed in retention.
A kind of novel ultrapure water treatment process provided by the invention, by reducing ultraviolet ray generating apparatus and micro-filtrate membrane filtration
The frequency of use of device, so as to reduce the maintenance of ultraviolet ray generating apparatus and microporous filtration and maintenance cost, and then significantly
Reduce the use cost of ultra-pure water.
Specific embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
The modification of no creative contribution can be made to the present embodiment as needed after this specification is read, but as long as in this hair
It is all protected in bright right be subject to Patent Law.
Embodiment 1：A kind of novel ultrapure water treatment process, includes the following steps：（1）Pretreatment：By tap water or common
Mechanical admixture in deionized water filters out；（2）Activated carbon filters：Water after pretreatment carries out activated carbon adsorption；（3）It is reverse osmosis
Membrane filtration：Through activated carbon adsorption, treated that water carries out reverse-osmosis treated with reverse osmosis membrane；（4）EDI processing：Pass through electrodeionization
The first ultra-pure water is obtained after processing deep desalting；（5）Ultraviolet sterilization：The first ultra-pure water obtained after EDI is handled is through ultraviolet
Line treatment with irradiation；（6）Micro-filtration processing：Water after ultraviolet treatment with irradiation is filtered with microporous filtration, obtains second
Ultra-pure water.
It pre-processes to carry out by sand core filter plate and fibre columns.
Reverse osmosis membrane filtration is two-pass reverse osmosis membrane filtration.
Reverse osmosis membrane is the reverse osmosis membrane of the negatively charged anti-organic pollution in surface.
Reverse osmosis membrane is cellulose acetate rolled film.
EDI processing is two level EDI processing.
First order EDI processing and second level EDI processing for cascaded structure, what first order EDI processing runners loaded is sun from
Sub-exchange resin, what EDI processing runners in the second level loaded is Ion Exchange Resin In The Mixing Bed.
The wavelength of ultraviolet light is 180nm-254nm.
Micro-filtration membrane aperture is 0.2-0.3 μm.
Embodiment 2：A kind of novel ultrapure water treatment process, includes the following steps：（1）Pretreatment：By tap water or common
Mechanical admixture in deionized water filters out；（2）Activated carbon filters：Water after pretreatment carries out activated carbon adsorption, then carries out
Ultraviolet sterilization；（3）Reverse osmosis membrane filtration：Through activated carbon adsorption, treated that water carries out reverse-osmosis treated with reverse osmosis membrane；（4）
EDI processing：The first ultra-pure water is obtained after handling deep desalting by electrodeionization；（5）Ultraviolet sterilization：After EDI is handled
The first ultra-pure water arrived is through ultraviolet treatment with irradiation；（6）Micro-filtration processing：Water micro-filtrate membrane filtration after ultraviolet treatment with irradiation
Device is filtered, and obtains the second ultra-pure water.
It pre-processes to carry out by sand core filter plate and fibre columns.
Reverse osmosis membrane filtration is two-pass reverse osmosis membrane filtration.
Reverse osmosis membrane is the reverse osmosis membrane for the anti-organic pollution that surface is electroneutral.
Reverse osmosis membrane is cellulose acetate rolled film.
EDI processing is two level EDI processing.
First order EDI processing and second level EDI processing for cascaded structure, what first order EDI processing runners loaded is sun from
Sub-exchange resin, what EDI processing runners in the second level loaded is Ion Exchange Resin In The Mixing Bed.
The wavelength of ultraviolet light is 180nm-254nm.
Micro-filtration membrane aperture is 0.2-0.3 μm.
Claims (10)
1. a kind of novel ultrapure water treatment process, which is characterized in that include the following steps：（1）Pretreatment：By tap water or common
Mechanical admixture in deionized water filters out；（2）Activated carbon filters：Water after pretreatment carries out activated carbon adsorption；（3）It is reverse osmosis
Membrane filtration：Through activated carbon adsorption, treated that water carries out reverse-osmosis treated with reverse osmosis membrane；（4）EDI processing：Pass through electrodeionization
The first ultra-pure water is obtained after processing deep desalting；（5）Ultraviolet sterilization：The first ultra-pure water obtained after EDI is handled is through ultraviolet
Line treatment with irradiation；（6）Micro-filtration processing：Water after ultraviolet treatment with irradiation is filtered with microporous filtration, obtains second
Ultra-pure water.
2. a kind of novel ultrapure water treatment process according to claim 1, which is characterized in that water is through step（2）It lives
After property charcoal filtration treatment, sterilization processing is carried out with ultraviolet light, then again through step（3）Carry out reverse osmosis membrane filtration processing.
3. a kind of novel ultrapure water treatment process according to claim 1, which is characterized in that the pretreatment is to pass through sand
Core filter plate and fibre columns carry out.
4. a kind of novel ultrapure water treatment process according to claim 1, which is characterized in that the reverse osmosis membrane filtration is
Two-pass reverse osmosis membrane filtration.
5. a kind of novel ultrapure water treatment process according to claim 4, which is characterized in that the reverse osmosis membrane is surface
The reverse osmosis membrane of negatively charged or electroneutral anti-organic pollution.
6. a kind of novel ultrapure water treatment process according to claim 5, which is characterized in that the reverse osmosis membrane is acetic acid
Cellulose rolled film.
7. a kind of novel ultrapure water treatment process according to claim 1, which is characterized in that the EDI processing is two level
EDI processing.
8. a kind of novel ultrapure water treatment process according to claim 7, which is characterized in that first order EDI processing and the
Two level EDI processing is cascaded structure, and what first order EDI processing runners loaded is cation exchange resin, second level EDI processing streams
What road loaded is Ion Exchange Resin In The Mixing Bed.
9. a kind of novel ultrapure water treatment process according to claim 1, which is characterized in that the wavelength of the ultraviolet light is
180nm-254nm。
10. a kind of novel ultrapure water treatment process according to claim 1, which is characterized in that the micro-filtration membrane aperture is
0.2-0.3μm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711419706.1A CN108046493A (en) | 2017-12-25 | 2017-12-25 | A kind of novel ultrapure water treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711419706.1A CN108046493A (en) | 2017-12-25 | 2017-12-25 | A kind of novel ultrapure water treatment process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108046493A true CN108046493A (en) | 2018-05-18 |
Family
ID=62131745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711419706.1A Pending CN108046493A (en) | 2017-12-25 | 2017-12-25 | A kind of novel ultrapure water treatment process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108046493A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109179817A (en) * | 2018-08-29 | 2019-01-11 | 江苏奇星流体设备有限公司 | A kind of EDI water treatment technology |
| CN111453900A (en) * | 2020-04-27 | 2020-07-28 | 苏州华新达饮品技术有限公司 | Ultrapure water treatment process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200992500Y (en) * | 2007-01-24 | 2007-12-19 | 张茂科 | Laboratory-level superpure water purifier |
| CN205011525U (en) * | 2015-07-31 | 2016-02-03 | 天津邦盛净化设备工程有限公司 | Electron industrial water's purification device |
-
2017
- 2017-12-25 CN CN201711419706.1A patent/CN108046493A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200992500Y (en) * | 2007-01-24 | 2007-12-19 | 张茂科 | Laboratory-level superpure water purifier |
| CN205011525U (en) * | 2015-07-31 | 2016-02-03 | 天津邦盛净化设备工程有限公司 | Electron industrial water's purification device |
Non-Patent Citations (2)
| Title |
|---|
| 梁毅: "《GMP教程》", 31 August 2015 * |
| 王方: "《绿色电去离子水处理技术》", 31 May 2010 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109179817A (en) * | 2018-08-29 | 2019-01-11 | 江苏奇星流体设备有限公司 | A kind of EDI water treatment technology |
| CN111453900A (en) * | 2020-04-27 | 2020-07-28 | 苏州华新达饮品技术有限公司 | Ultrapure water treatment process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104445788B (en) | High slat-containing wastewater treatment for reuse zero-emission integrated technique | |
| CN105236661B (en) | The system and method for preparing ultra-pure water of no effuent discharge | |
| US8119008B2 (en) | Fluid purification methods and devices | |
| KR101815298B1 (en) | Reusing system of power plant wastewater using ultrasonic edr | |
| WO2015012054A1 (en) | Method and device for treating boron-containing water | |
| CN203419806U (en) | Water treatment device for providing high-purity water for laboratory | |
| KR101389450B1 (en) | Desalination apparatus and desalinating method thereof | |
| CN101643284A (en) | Reverse osmosis water treatment method and equipment with high desalination and high water productivity | |
| CN104108813B (en) | Refinery sewage desalination integrated processing technique and device | |
| CN102583831A (en) | Wastewater treatment and reusing membrane separation treatment technology | |
| CN105502795A (en) | Water purification method and direct drinking station equipment | |
| CN203319802U (en) | Water treatment equipment adopting three-dimension electrode-Fenton reactor combination membrane technology | |
| CN108046493A (en) | A kind of novel ultrapure water treatment process | |
| TWI387562B (en) | Process and treatment device for water containing biological treatment water | |
| JP5293551B2 (en) | Water treatment system | |
| CN205188052U (en) | Former pretreatment of water and demineralizer | |
| IE20140128A1 (en) | Rainwater purification system | |
| CN106587462A (en) | Treatment method for nanofiltration membrane central water purification system | |
| CN106396244A (en) | A waste water treating system suitable for an electronic factory | |
| CN102815810A (en) | Desalination system and desalination method | |
| CN107986534A (en) | A kind of novel ultrapure water processing system | |
| JP2019118891A (en) | Pure water producing apparatus and pure water producing method | |
| CN104860435A (en) | Hotel softened water and direct drinking water processing system | |
| JPH10128075A (en) | Reverse osmosis membrane device and treatment using the same | |
| CN203269702U (en) | Pretreating device for sea water desalination |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180518 |
|
| RJ01 | Rejection of invention patent application after publication |