CN102145260A - Copper zinc silver alloy metal nano-filtration membrane and preparation method thereof - Google Patents
Copper zinc silver alloy metal nano-filtration membrane and preparation method thereof Download PDFInfo
- Publication number
- CN102145260A CN102145260A CN2011100210449A CN201110021044A CN102145260A CN 102145260 A CN102145260 A CN 102145260A CN 2011100210449 A CN2011100210449 A CN 2011100210449A CN 201110021044 A CN201110021044 A CN 201110021044A CN 102145260 A CN102145260 A CN 102145260A
- Authority
- CN
- China
- Prior art keywords
- silver alloy
- membrane
- zinc
- copper
- alloy metal
- 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.)
- Granted
Links
Landscapes
- Laminated Bodies (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a copper zinc silver alloy metal nano-filtration membrane and a preparation method thereof, and relates to a novel water purification material. The copper zinc silver alloy metal nano-filtration membrane comprises the following components in percentage by mass: 40 to 50 percent of copper, 49.8 to 58.5 percent of zinc and 0.2 to 1.5 percent of silver, or 80 to 90 percent of copper, 9.8 to 18.5 percent of zinc and 0.2 to 1.5 percent of silver. The preparation method comprises the following steps of: putting a base material into physical vapor deposition vacuum equipment, vacuumizing, and cleaning and activating the base material; and performing physical vapor deposition on the base material, and plating the copper zinc silver alloy nano-filtration membrane on the base material. The nano-filtration membrane has the functions of bacteria resistance, chlorine removal and the like, is a novel water purification material, has no ions of NO3<-1>, SO4<-2> and the like, and does not cause secondary pollution to water; and the nano-filtration membrane has high efficiency of removing residual chlorine and harmful heavy metal ions such as lead ions, mercury ions, hexavalent chromium, arsenic ions and the like in water, and has good effect. The production process is environment-friendly, and no waste water is drained.
Description
Technical field
The present invention relates to a kind of novel water-purifying material, particularly relate to a kind of copper zinc-silver alloy metal NF membrane and preparation method thereof.
Background technology
Along with the development and the growth in the living standard of society, people are more and more higher to the requirement of quality of life, and the drinking water of clean and safe can not be ignored the influence of people's quality of life.Water is the main carrier of all kinds of pathogen transmissions, and 80% of the human disease that takes a disease is polluted relevant with water.The drinking water that obtains clean safety has become worldwide popular subject under discussion.All there is pollution in various degree in the underground water of surface water such as and on the other hand, the pollution of water but is on the rise, rivers and lakes and some areas, and the water shortage problem of water quality has caused people's extensive concern.
Major pollutants in the drinking water have heavy metal ion, arsenic ion, micro quantity organic pollutant, DBPs, nitrate, nitrite and pathogen, virus and the pathogenic microorganism etc. of solubility.At present, the water-purifying material that is widely adopted mainly contains active carbon, molecular sieve, KDF and nanofiltration membrane etc.
Active carbon is a kind of carbide of multiple aperture, and profuse hole structure is arranged, and has the good adsorption characteristic, and its suction-operated is formed by the absorption affinity of physics and chemistry, and its appearance luster is black.The major function of active carbon is to remove part chlorine residue and absorption peculiar smell, can purify water, and makes the water quality mouthfeel fresh and sweet.The Main Ingredients and Appearance of active carbon is except charcoal, also comprised a spot of hydrogen, nitrogen, oxygen, its construction profile is seemingly with a hexagon, because irregular hexagonal structure, determined the characteristics of its many volumes and high surface, the specific surface that has that every gram active carbon is had is equivalent to 1000m
2More than.
Kai Defei (KDF) is highly purified copper/zinc alloy granules, it carries out water treatment work by little electrochemical oxidation-reduction reaction, when contacting with water, two kinds of metals in the alloy constitute countless little galvanic cell systems on submicroscopic yardstick, this material has powerful respond and the reaction speed that is exceedingly fast in water, can remove in the water up to metal ion and compounds such as the lead that dissolves in 99% chlorine and the water, mercury, nickel, chromium.To suppress bacterium, fungi, dirt, algae to grow effect distinguished.
Chinese patent ZL200610034167.5 discloses a kind of poly metal cluster water purifying material and its production and application, after the compound of metals such as argent, copper, zinc, rare earth is configured to the aqueous solution, it is joined form combination in the porous material, again with after the combination roasting, feed reducing agent and obtain the method for water-purifying material.The weak point of this invention is to introduce compound such as the silver nitrate of source metal for these metals, and the anion that is harmful to that copper sulphate etc. easily will be a large amount of carries to be stayed in the porous material, when this water-purifying material is gone to purify waste water, can make NO in the water after the purification
3 -1, SO
4 -2Plasma solubility significantly increases, and the water quality after the purification is degenerated.
Summary of the invention
The object of the present invention is to provide a kind of copper zinc-silver alloy metal NF membrane and preparation method thereof.
The component and the content by mass percentage thereof of copper zinc-silver alloy metal NF membrane of the present invention are:
Copper 40%～50%, zinc 49.8%～58.5%, silver 0.2%～1.5%; Or
Copper 80%～90%, zinc 9.8%～18.5%, silver 0.2%～1.5%.
The preparation method of copper zinc-silver alloy metal NF membrane of the present invention may further comprise the steps:
1) base material is put into the physical vapor deposition (PVD) vacuum equipment, vacuumized, base material is cleaned and activation;
In step 1), described base material can be selected from active carbon or ceramic material etc.; Described active carbon can be selected from particle, sheet or carbon-point isoreactivity charcoal; Described ceramic material can be selected from Ceramic Balls, potsherd, ceramic membrane or earthenware etc.; Described to base material cleaning and activation, preferably be evacuated to vacuum and reach 10
-2During Pa, base material is cleaned and activation; Described activation can adopt the plasma aura to activate, the process conditions of activation can be ion gun electric current 0.3～0.5A, bias voltage 80～150V, dutycycle 50%～80%, argon gas flow velocity 10～100SCCM, oxygen gas flow rate 10～150SCCM, vacuum pressure 0.1～0.3Pa in the stove, soak time 5～10min to reach the purpose of cleaning and change activation substrate surface, improves the adhesion between antibiotic dechlorination film and base material.
2) base material is carried out physical vapour deposition (PVD), copper facing zinc-silver alloy NF membrane on base material.
In step 2) in, described method of carrying out physical vapour deposition (PVD) can adopt arc process or intermediate frequency to spatter method etc., the process conditions of described arc process can be: target power supply electric current 60～100A, bias voltage 80～150V, argon gas flow velocity 20～100SCCM, vacuum pressure 0.1～0.3Pa in the stove, plated film time 10～20min; The process conditions of described intermediate frequency sputtering method can be: intermediate frequency power supply power 6～9kW, bias voltage 80～150V, vacuum pressure 0.1～0.3Pa in the argon gas flow velocity 20～100SCCM, stove, plated film time 10～20min; The thickness of the zinc-silver alloy NF membrane that is obtained can be 0.1～0.5 μ m, and the aperture is 10～20nm.
Compared with prior art, the present invention has following outstanding advantage:
1) the prepared copper zinc-silver alloy metal NF membrane of the present invention has functions such as antibiotic dechlorination, is a kind of novel water-purifying material, does not have NO
3 -1, SO
4 -2Plasma can not cause secondary pollution to water; To removing efficient height such as chlorine residue in the water and harmful heavy metal ion such as lead ion, mercury ion, Cr VI, arsenic ion, effective.
2) production technology of the present invention is environmentally friendly, does not have discharge of wastewater.
The specific embodiment
Embodiment 1
With common ceramic for filtration pipe is base material, and its preparation technology is as follows:
1) common ceramic for filtration pipe is put into the PVD vacuum equipment, vacuumize, when vacuum reaches 10
-2The time, common ceramic for filtration pipe is implemented to clean and activation (plasma aura), its process conditions are ion gun electric current 0.3A, bias voltage 150V, dutycycle 80%, argon gas flow velocity 100SCCM, vacuum pressure 0.3Pa in the oxygen gas flow rate 150SCCM, stove, soak time 10min, to reach the purpose of cleaning and change activation substrate surface, improve the adhesion between antibiotic dechlorination film and base material.
2) common ceramic for filtration sheet is carried out the copper zinc-silver alloy NF membrane that PVD (physical vapour deposition (PVD)) plating has antibiotic dechlorination performance, its arc process process conditions: target power supply electric current 60A, bias voltage 150V, argon gas flow velocity 30SCCM, vacuum pressure 0.1Pa in the stove, plated film time 5min); The antibiotic dechlorination thickness that is obtained is 200nm, and the aperture is 50～100nm.The component of copper zinc-silver alloy NF membrane is: copper 50%, zinc 49.8%, silver 0.2%.
This kind new copper zinc-silver alloy metal NF membrane is by standard mark-on test, and the chlorine residue clearance is up to more than 99%, heavy metal ion pb
2+, Hg
2+, Cd
2+, Cr
6+, As
5+The rate of removing is up to more than 99%, and the degerming antibiotic rate is up to more than 99.99%.
Embodiment 2
With common ceramic for filtration sheet is base material, and its preparation technology is as follows:
1) common ceramic for filtration sheet is put into the PVD vacuum equipment, vacuumize, when vacuum reaches 10
-2The time, the conventional ceramic pipe is implemented to clean and activation (plasma aura), its process conditions are ion gun electric current 0.5A, bias voltage 150V, dutycycle 80%, argon gas flow velocity 10SCCM, vacuum pressure 0.1Pa in the oxygen gas flow rate 50SCCM, stove, soak time 5min, to reach the purpose of cleaning and change activation substrate surface, improve the adhesion between antibiotic dechlorination film and base material.
2) common ceramic for filtration sheet is carried out the copper zinc-silver alloy NF membrane that PVD (physical vapour deposition (PVD)) plating has antibiotic dechlorination performance, its arc process process conditions: target power supply electric current 100A, bias voltage 80V, argon gas flow velocity 100SCCM, vacuum pressure 0.3Pa in the stove, plated film time 20min); The antibiotic dechlorination thickness that is obtained is 900nm, and the aperture is 50nm-100nm.The component of copper zinc-silver alloy NF membrane is: copper 82%, zinc 16.5%, silver 1.5%.
This kind new copper zinc-silver alloy metal NF membrane is by standard mark-on test, and the chlorine residue clearance is up to more than 99%, heavy metal ion pb
2+, Hg
2+, Cd
2+, Cr
6+, As
5+The rate of removing is up to more than 99%, and the degerming antibiotic rate is up to more than 99.99%.
Embodiment 3
With common ceramic for filtration sheet is base material, and its preparation technology is as follows:
1) common ceramic for filtration sheet is put into the PVD vacuum equipment, vacuumize, when vacuum reaches 10
-2The time, the conventional ceramic pipe is implemented to clean and activation (plasma aura), its process conditions are ion gun electric current 0.3A, bias voltage 120V, dutycycle 70%, argon gas flow velocity 20SCCM, vacuum pressure 0.2Pa in the oxygen gas flow rate 100SCCM, stove, soak time 8min, to reach the purpose of cleaning and change activation substrate surface, improve the adhesion between antibiotic dechlorination film and base material.
2) common ceramic for filtration sheet is carried out the copper zinc-silver alloy NF membrane that PVD (physical vapour deposition (PVD)) plating has antibiotic dechlorination performance, its RF sputtering method process conditions: intermediate frequency power supply power 6KW, bias voltage 100V, argon gas flow velocity 90SCCM, vacuum pressure 0.2Pa in the stove, plated film time 5min); The antibiotic dechlorination thickness that is obtained is 50nm, and the aperture is 20nm-50nm.The component of copper zinc-silver alloy NF membrane is: copper 48.0%, zinc 51.8%, silver 0.2%.
This kind new copper zinc-silver alloy metal NF membrane is by standard mark-on test, and the chlorine residue clearance is up to more than 99%, heavy metal ion pb
2+, Hg
2+, Cd
2+, Cr
6+, As
5+The rate of removing is up to more than 99%, and the degerming antibiotic rate is up to more than 99.99%.
Embodiment 4
With common active carbon carbon-point is base material, and a kind of preparation technology of copper zinc-silver alloy metal NF membrane is as follows:
1) common active carbon carbon-point is put into the PVD vacuum equipment, vacuumize, when vacuum reaches 10
-2The time, common active carbon carbon-point is implemented to clean and activation (plasma aura), its process conditions are ion gun electric current 0.4A, bias voltage 100V, dutycycle 70%, argon gas flow velocity 50SCCM, vacuum pressure 0.25Pa in the oxygen gas flow rate 100SCCM, stove, soak time 8min, to reach the purpose of cleaning and change activation substrate surface, improve the adhesion between antibiotic dechlorination film and base material.
2) common active carbon carbon-point is carried out the copper zinc-silver alloy NF membrane that PVD (physical vapour deposition (PVD)) plating has antibiotic dechlorination performance, its arc process process conditions: target power supply electric current 80A, bias voltage 120V, argon gas flow velocity 40SCCM, vacuum pressure 0.2Pa in the stove, plated film time 15min); The antibiotic dechlorination thickness that is obtained is 300nm, and the aperture is 50nm-80nm.The component of copper zinc-silver alloy NF membrane is: copper 80%, zinc 18.5%, silver 1.5%.
This kind new copper zinc-silver alloy metal NF membrane is by standard mark-on test, and the chlorine residue clearance is up to more than 99%, heavy metal ion pb
2+, Hg
2+, Cd
2+, Cr
6+, As
5+The rate of removing is up to more than 99%, and the degerming antibiotic rate is up to more than 99.99%.
Embodiment 5
With common active carbon carbon plate is base material, and its preparation technology is as follows:
1) common active carbon carbon plate is put into the PVD vacuum equipment, vacuumize, when vacuum reaches 10
-2The time, common active carbon carbon-point is implemented to clean and activation (plasma aura), its process conditions are ion gun electric current 0.3A, bias voltage 90V, dutycycle 80%, argon gas flow velocity 30SCCM, vacuum pressure 0.2Pa in the oxygen gas flow rate 90SCCM, stove, soak time 10min, to reach the purpose of cleaning and change activation substrate surface, improve the adhesion between antibiotic dechlorination film and base material.
2) common active carbon carbon plate is carried out the copper zinc-silver alloy that PVD (physical vapour deposition (PVD)) plating has antibiotic dechlorination performance, RF sputtering method process conditions wherein: intermediate frequency power supply power 6kW, bias voltage 100V, argon gas flow velocity 90SCCM, vacuum pressure 0.2Pa in the stove, plated film time 10min); The antibiotic dechlorination thickness that is obtained is 120nm, and the aperture is 20～70nm.The component of copper zinc-silver alloy NF membrane is: copper 48.0%, zinc 51.8%, silver 0.2%.
This kind new copper zinc-silver alloy metal NF membrane is by standard mark-on test, and the chlorine residue clearance is up to more than 99%, heavy metal ion pb
2+, Hg
2+, Cd
2+, Cr
6+, As
5+The rate of removing is up to more than 99%, and the degerming antibiotic rate is up to more than 99.99%.
Claims (10)
1. copper zinc-silver alloy metal NF membrane is characterized in that its component and content by mass percentage thereof are:
Copper 40%～50%, zinc 49.8%～58.5%, silver 0.2%～1.5%; Or
Copper 80%～90%, zinc 9.8%～18.5%, silver 0.2%～1.5%.
2. the preparation method of a kind of copper zinc-silver alloy metal NF membrane as claimed in claim 1 is characterized in that may further comprise the steps:
1) base material is put into the physical vapour deposition (PVD) vacuum equipment, vacuumized, base material is cleaned and activation;
2) base material is carried out physical vapour deposition (PVD), copper facing zinc-silver alloy metal NF membrane on base material.
3. the preparation method of a kind of copper zinc-silver alloy metal NF membrane as claimed in claim 2 is characterized in that in step 1) described base material is selected from active carbon or ceramic material.
4. the preparation method of a kind of copper zinc-silver alloy metal NF membrane as claimed in claim 3 is characterized in that described active carbon is selected from granular activated carbon, sheet shaped activated carbon or carbon-point active carbon.
5. the preparation method of a kind of copper zinc-silver alloy metal NF membrane as claimed in claim 3 is characterized in that described ceramic material is selected from Ceramic Balls, potsherd, ceramic membrane or earthenware.
6. the preparation method of a kind of copper zinc-silver alloy metal NF membrane as claimed in claim 2 is characterized in that in step 1), and is described to base material cleaning and activation, is to be evacuated to vacuum to reach 10
-2During Pa, base material is cleaned and activation.
7. the preparation method of a kind of copper zinc-silver alloy metal NF membrane as claimed in claim 6, it is characterized in that described activation employing plasma aura activates, the process conditions of activation are ion gun electric current 0.3～0.5A, bias voltage 80～150V, dutycycle 50%～80%, argon gas flow velocity 10～100SCCM, oxygen gas flow rate 10～150SCCM, vacuum pressure 0.1～0.3Pa in the stove, soak time 5～10min.
8. the preparation method of a kind of copper zinc-silver alloy metal NF membrane as claimed in claim 2 is characterized in that in step 2) in, described method of carrying out physical vapour deposition (PVD) is to adopt arc process or intermediate frequency to spatter method.
9. the preparation method of a kind of copper zinc-silver alloy metal NF membrane as claimed in claim 8, the process conditions that it is characterized in that described arc process are: target power supply electric current 60～100A, bias voltage 80～150V, argon gas flow velocity 20～100SCCM, vacuum pressure 0.1～0.3Pa in the stove, plated film time 10～20min.
10. the preparation method of a kind of copper zinc-silver alloy metal NF membrane as claimed in claim 8, the process conditions that it is characterized in that described intermediate frequency sputtering method are: intermediate frequency power supply power 6～9kW, bias voltage 80～150V, argon gas flow velocity 20～100SCCM, vacuum pressure 0.1～0.3Pa in the stove, plated film time 10～20min; The thickness of the zinc-silver alloy NF membrane that is obtained is 0.1～0.5 μ m, and the aperture is 10～20nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110021044 CN102145260B (en) | 2011-01-18 | 2011-01-18 | Copper zinc silver alloy metal nano-filtration membrane and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110021044 CN102145260B (en) | 2011-01-18 | 2011-01-18 | Copper zinc silver alloy metal nano-filtration membrane and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102145260A true CN102145260A (en) | 2011-08-10 |
| CN102145260B CN102145260B (en) | 2013-04-24 |
Family
ID=44419853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110021044 Active CN102145260B (en) | 2011-01-18 | 2011-01-18 | Copper zinc silver alloy metal nano-filtration membrane and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102145260B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104109775A (en) * | 2014-01-09 | 2014-10-22 | 山东普华紫光环保设备有限公司 | Alloy wire for purifying drinking water |
| CN107312983A (en) * | 2017-07-18 | 2017-11-03 | 河北工业大学 | A kind of copper silver-colored zinc alloy with micro-nano pore space structure and preparation method and application |
| CN109439933A (en) * | 2018-08-31 | 2019-03-08 | 新昌县金声铜业有限公司 | A kind of antibacterial copper alloy and preparation method thereof by force |
| CN113529024A (en) * | 2021-07-09 | 2021-10-22 | 苏州道一至诚纳米材料技术有限公司 | Film material for quickly killing coronavirus and bacteria and preparation method thereof |
| US11665956B2 (en) | 2016-09-08 | 2023-05-30 | Boe Technology Group Co., Ltd. | Flexible substrate and fabrication method thereof, and flexible display apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6709557B1 (en) * | 2002-02-28 | 2004-03-23 | Novellus Systems, Inc. | Sputter apparatus for producing multi-component metal alloy films and method for making the same |
| CN101265123A (en) * | 2008-04-18 | 2008-09-17 | 南京工业大学 | Method for preparing small aperture ceramic film |
| CN101492807A (en) * | 2009-02-20 | 2009-07-29 | 电子科技大学 | Self-air-suction vacuum plating method |
-
2011
- 2011-01-18 CN CN 201110021044 patent/CN102145260B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6709557B1 (en) * | 2002-02-28 | 2004-03-23 | Novellus Systems, Inc. | Sputter apparatus for producing multi-component metal alloy films and method for making the same |
| CN101265123A (en) * | 2008-04-18 | 2008-09-17 | 南京工业大学 | Method for preparing small aperture ceramic film |
| CN101492807A (en) * | 2009-02-20 | 2009-07-29 | 电子科技大学 | Self-air-suction vacuum plating method |
Non-Patent Citations (1)
| Title |
|---|
| 黄巧萍: "纳米级铜锌合金薄膜的研制及其基础研究", 《中国优秀博硕士学位论文全文数据库 (硕士) 工程科技Ⅰ辑》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104109775A (en) * | 2014-01-09 | 2014-10-22 | 山东普华紫光环保设备有限公司 | Alloy wire for purifying drinking water |
| CN104357706A (en) * | 2014-01-09 | 2015-02-18 | 山东普华紫光环保设备有限公司 | Alloy disinfection wire for removing heavy metals in liquor and liquor purification plant thereof |
| CN104689922A (en) * | 2014-01-09 | 2015-06-10 | 山东普华紫光环保设备有限公司 | Alloy disinfection wire and automobile tail gas purifier thereof |
| CN104109775B (en) * | 2014-01-09 | 2016-09-28 | 山东普华紫光环保设备有限公司 | A kind of B alloy wire of purifying drinking water |
| CN104689922B (en) * | 2014-01-09 | 2017-12-26 | 重庆永林机械设备有限公司 | A kind of alloy sterilization silk and its automobile exhaust purifier |
| US11665956B2 (en) | 2016-09-08 | 2023-05-30 | Boe Technology Group Co., Ltd. | Flexible substrate and fabrication method thereof, and flexible display apparatus |
| CN107312983A (en) * | 2017-07-18 | 2017-11-03 | 河北工业大学 | A kind of copper silver-colored zinc alloy with micro-nano pore space structure and preparation method and application |
| CN107312983B (en) * | 2017-07-18 | 2018-08-17 | 河北工业大学 | A kind of copper silver-colored zinc alloy and the preparation method and application thereof with micro-nano pore space structure |
| CN109439933A (en) * | 2018-08-31 | 2019-03-08 | 新昌县金声铜业有限公司 | A kind of antibacterial copper alloy and preparation method thereof by force |
| CN113529024A (en) * | 2021-07-09 | 2021-10-22 | 苏州道一至诚纳米材料技术有限公司 | Film material for quickly killing coronavirus and bacteria and preparation method thereof |
| CN113529024B (en) * | 2021-07-09 | 2023-11-21 | 苏州道一至诚纳米材料技术有限公司 | Membrane material for rapidly killing coronaviruses and bacteria and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102145260B (en) | 2013-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102145260B (en) | Copper zinc silver alloy metal nano-filtration membrane and preparation method thereof | |
| CN103723868B (en) | Water purifier | |
| CN103936116B (en) | A kind of manganese dioxide/carbon combined electrode for heavy metal ion in electro-adsorption water and electro-adsorption method | |
| CN102145261B (en) | Copper zinc alloy metal nano-filtration membrane and preparation method thereof | |
| CN102126800B (en) | Multi-function combined filter core and preparation method thereof | |
| CN101642714B (en) | Preparation method of core-shell Fe/Pd bimetallic nano-catalyst | |
| CN102151437B (en) | PP (polypropylene) filter paper with functions of resisting bacteria, dechlorinating and removing heavy metal ions and preparation method thereof | |
| Liu et al. | Fabrication and characterization of Cu/Ti bilayer nanoelectrode for electrochemical denitrification | |
| US11117818B2 (en) | Faradic porosity cell | |
| CN102120146B (en) | Preparation method of filter core of composite ultrafiltration tube membrane | |
| Costley et al. | Effect of flow rate on heavy metal accumulation by rotating biological contactor (RBC) biofilms | |
| CN108117224B (en) | Pretreatment method of desulfurization wastewater | |
| CN103819036A (en) | Treating method for desulfurization waste water of power plant | |
| CN105369199A (en) | Method for preparing frictional wear resisting and corrosion resisting carbon-based film | |
| CN107376864A (en) | A kind of magnetic active carbon powder | |
| Zhiqiang et al. | Effect of Cu2+ concentration in cathode on power generation and copper removal of thermally regenerative ammonia-based battery | |
| CN111807573B (en) | Treatment device and method for thallium-containing wastewater | |
| CN114249399A (en) | Photoelectrocatalysis system for efficiently removing nitrate nitrogen in high-salt system and application | |
| JP3988483B2 (en) | Treatment of free chlorine in water | |
| CN101891286B (en) | System for purifying and recycling electroplating/chemical plating wastewater on line | |
| CN201245466Y (en) | Granular activated carbon filter | |
| CN111606493A (en) | Method for zero-emission treatment of high-salinity wastewater through electric steam energy evaporation | |
| CN111250054B (en) | Group functionalized hypha filter membrane and preparation method and application thereof | |
| US20230009842A1 (en) | Faradic porosity cell | |
| CN108975571A (en) | A kind of method for the advanced treating desulfurization wastewater that three-dimensional electrolysis is coupled with adsorption technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 361000 Tianfeng Road, Jimei District, Xiamen, Fujian Province, No. 69 Patentee after: Xiamen Jian Lin health home Limited by Share Ltd Address before: Room 1208, 12th floor, Lianqian Building, 859 Lianqian Road, Xiamen City, Fujian Province Patentee before: Xiamen Runner Industrial Corporation |