CN106219848A - A kind of agitating type is double filters salt technology - Google Patents
A kind of agitating type is double filters salt technology Download PDFInfo
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- CN106219848A CN106219848A CN201610573141.1A CN201610573141A CN106219848A CN 106219848 A CN106219848 A CN 106219848A CN 201610573141 A CN201610573141 A CN 201610573141A CN 106219848 A CN106219848 A CN 106219848A
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- waste liquid
- agitating type
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- 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
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- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- 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
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- 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
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- 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)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a kind of agitating type pair and filter salt technology, its step is as follows: step 1, by mixing high-salt wastewater in drainage screen enters into waste liquid regulating tank；Step 2, in high-salt wastewater, acid adding or alkali regulation pH value are to 79, are then joined in waste liquid tank by high-pressure pump；Step 3, joins in nanofiltration membrane component by waste liquid supercharging in waste liquid tank, and waste water is in nanofiltration membrane component enters into heated and stirred groove；Step 4, is stirred the waste water in heated and stirred groove heating, and keeps constant temperature；Step 5, joins constant temperature waste liquid in NACE membrane module, enters into sump pit after membrane filtration, i.e. obtains discharging water.The present invention takes full advantage of the advantage of membrane separation technique, has pollution-free, the advantage of low energy consumption, also solves the technological deficiency of reverse osmosis (RO) film simultaneously.
Description
Technical field
The invention belongs to Environmental Chemistry technical field, be specifically related to a kind of agitating type pair and filter salt technology.
Background technology
Membrane filtration is a kind of screening process relevant to membrane aperture size, with the pressure differential of film both sides as driving force, with film
For filter medium, under pressure, when stock solution flows through film surface, the tiny micropore of the many gathered in film surface only allows
Water and small-molecule substance by and become permeate, in stock solution, volume is then trapped within film more than the material in film surface micropore footpath
Liquid feeding side, become concentrated solution, thus realize the separation to stock solution and the purpose of concentration.
Reverse osmosis technology just began one's study in the fifties, made the reverse osmosis membrane with industrial value to the end of the sixties,
Within 1971, begin with industrialness reverse osmosis unit to put into operation in power plant, use now hyperfiltration to carry out water and process throughout U.S.
The countries such as state, Japan, France, Italy.China starts to introduce the reverse osmosis unit water in power plant the end of the seventies and processes, and 90
Developing of age reverse osmosis membrane becomes focus, and present reverse osmosis technology is mainly used in desalinization, pure water and ultra-pure water
Preparation, city water process, municipal sewage treatment and application, industry plating wastewater and the process of pulp and paper industry waste water,
The waste water such as chemical wastewater treatment, food industry, medical industry process.This fully demonstrates reverse osmosis technology at wastewater reusing treatment
Technology maturation reliable.
But, exist a series of as industrial high-salt wastewater complicated faced by the reverse osmosis technology of current main flow desalination technology
Problem, reverse osmosis membrane uses environmental requirement higher, it is impossible to adapt to complicated actual environment；Although removal efficiency is the highest, but deposit
Easily change at film, it is impossible to use for a long time.
Summary of the invention
It is an object of the invention to provide a kind of agitating type pair and filter salt technology, the present invention takes full advantage of membrane separation technique
Advantage, has pollution-free, the advantage of low energy consumption, also solves the technological deficiency of reverse osmosis (RO) film simultaneously.
A kind of agitating type is double filters salt technology, and its step is as follows:
Step 1, by mixing high-salt wastewater in drainage screen enters into waste liquid regulating tank；
Step 2, in high-salt wastewater, acid adding or alkali regulation pH value are to 7-9, are then joined in waste liquid tank by high-pressure pump；
Step 3, joins in nanofiltration membrane component by waste liquid supercharging in waste liquid tank, and waste water enters into heated and stirred through nanofiltration membrane component
In groove；
Step 4, is stirred the waste water in heated and stirred groove heating, and keeps constant temperature；
Step 5, joins constant temperature waste liquid in NACE membrane module, enters into sump pit after membrane filtration, i.e. obtains discharging water.
Acid solution in described step 2 uses sulphuric acid, and the concentration of described sulphuric acid is 30-50%
Aqueous slkali in described step 2 uses sodium hydroxide, and described naoh concentration is 1-3mol/L.
Use drainage screen to carry out precipitation after described step 2 regulates pH value to filter.
NF membrane in described step 3 uses sulfonated polyether sulfone class composite nanometer filtering film or aromatic polyamides class composite nanometer filtering film
Middle one.
Thermostat temperature in described step 4 is 50-60 DEG C, and mixing speed is 2000-3000r/min.
NACE film in described step 5 uses nanostructured polymers to make, and adds a small amount of nanoparticle the most in the plastic
Son makes Organic substance matrix and inorganic matter dispersion phase compound on nano-scale.
Described plastics include the one in polyethylene, polypropylene, polrvinyl chloride.
Described nanoparticle uses the one in nano-calcium carbonate, nano barium sulfate, and the particle diameter of described nanoparticle is
100-500nm。
Being provided with chiller in described step 5 in sump pit, described chiller uses aeration chiller.
Compared with prior art, the method have the advantages that
1, the present invention carries out double membrane filtration by NF membrane and NACE film, filters mixing high-salt wastewater to discharge standard.
2, the present invention takes full advantage of the advantage of membrane separation technique, has pollution-free, the advantage of low energy consumption, also solves simultaneously
The technological deficiency of reverse osmosis (RO) film.
3, the NACE film that the present invention uses has soluble solid, chlorine, low ph value or biological pollution in waste water unwise
Sense；Without regeneration requirements；Scale problems without film；Service life is long；Without features such as chemical drugss.
4, the NACE membrane technology that the present invention uses has the advantages such as operating cost is low, antipollution, treatment effect are stable.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described further:
Embodiment 1
A kind of agitating type is double filters salt technology, and its step is as follows:
Step 1, by mixing high-salt wastewater in drainage screen enters into waste liquid regulating tank；
Step 2, in high-salt wastewater, acid adding or alkali regulation pH value are to 7, are then joined in waste liquid tank by high-pressure pump；
Step 3, joins in nanofiltration membrane component by waste liquid supercharging in waste liquid tank, and waste water enters into heated and stirred through nanofiltration membrane component
In groove；
Step 4, is stirred the waste water in heated and stirred groove heating, and keeps constant temperature；
Step 5, joins constant temperature waste liquid in NACE membrane module, enters into sump pit after membrane filtration, i.e. obtains discharging water.
Acid solution in described step 2 uses sulphuric acid, and the concentration of described sulphuric acid is 30%
Aqueous slkali in described step 2 uses sodium hydroxide, and described naoh concentration is 1mol/L.
Use drainage screen to carry out precipitation after described step 2 regulates pH value to filter.
NF membrane in described step 3 uses sulfonated polyether sulfone class composite nanometer filtering film.
Thermostat temperature in described step 4 is 50-60 DEG C, and mixing speed is 2000r/min.
NACE film in described step 5 uses nanostructured polymers to make, and adds a small amount of nanoparticle the most in the plastic
Son makes Organic substance matrix and inorganic matter dispersion phase compound on nano-scale.
Described plastics include polyethylene.
Described nanoparticle uses nano-calcium carbonate, and the particle diameter of described nanoparticle is 100nm.
Being provided with chiller in described step 5 in sump pit, described chiller uses aeration chiller.
Embodiment 2
A kind of agitating type is double filters salt technology, and its step is as follows:
Step 1, by mixing high-salt wastewater in drainage screen enters into waste liquid regulating tank；
Step 2, in high-salt wastewater, acid adding or alkali regulation pH value are to 9, are then joined in waste liquid tank by high-pressure pump；
Step 3, joins in nanofiltration membrane component by waste liquid supercharging in waste liquid tank, and waste water enters into heated and stirred through nanofiltration membrane component
In groove；
Step 4, is stirred the waste water in heated and stirred groove heating, and keeps constant temperature；
Step 5, joins constant temperature waste liquid in NACE membrane module, enters into sump pit after membrane filtration, i.e. obtains discharging water.
Acid solution in described step 2 uses sulphuric acid, and the concentration of described sulphuric acid is 50%
Aqueous slkali in described step 2 uses sodium hydroxide, and described naoh concentration is 3mol/L.
Use drainage screen to carry out precipitation after described step 2 regulates pH value to filter.
NF membrane in described step 3 uses aromatic polyamides class composite nanometer filtering film.
Thermostat temperature in described step 4 is 60 DEG C, and mixing speed is 3000r/min.
NACE film in described step 5 uses nanostructured polymers to make, and adds a small amount of nanoparticle the most in the plastic
Son makes Organic substance matrix and inorganic matter dispersion phase compound on nano-scale.
Described plastics include polypropylene.
Described nanoparticle uses nano barium sulfate, and the particle diameter of described nanoparticle is 00nm.
Being provided with chiller in described step 5 in sump pit, described chiller uses aeration chiller.
Embodiment 3
A kind of agitating type is double filters salt technology, and its step is as follows:
Step 1, by mixing high-salt wastewater in drainage screen enters into waste liquid regulating tank；
Step 2, in high-salt wastewater, acid adding or alkali regulation pH value are to 8, are then joined in waste liquid tank by high-pressure pump；
Step 3, joins in nanofiltration membrane component by waste liquid supercharging in waste liquid tank, and waste water enters into heated and stirred through nanofiltration membrane component
In groove；
Step 4, is stirred the waste water in heated and stirred groove heating, and keeps constant temperature；
Step 5, joins constant temperature waste liquid in NACE membrane module, enters into sump pit after membrane filtration, i.e. obtains discharging water.
Acid solution in described step 2 uses sulphuric acid, and the concentration of described sulphuric acid is 40%
Aqueous slkali in described step 2 uses sodium hydroxide, and described naoh concentration is 2mol/L.
Use drainage screen to carry out precipitation after described step 2 regulates pH value to filter.
NF membrane in described step 3 uses sulfonated polyether sulfone class composite nanometer filtering film.
Thermostat temperature in described step 4 is 55 DEG C, and mixing speed is 2500r/min.
NACE film in described step 5 uses nanostructured polymers to make, and adds a small amount of nanoparticle the most in the plastic
Son makes Organic substance matrix and inorganic matter dispersion phase compound on nano-scale.
Described plastics include polrvinyl chloride.
Described nanoparticle uses nano-calcium carbonate, and the particle diameter of described nanoparticle is 300nm.
Being provided with chiller in described step 5 in sump pit, described chiller uses aeration chiller.
It is the sodium sulfate of 0.5mol/ that the process of embodiment 1-3 processes total concentration, and potassium sulfate, sodium nitrate, potassium nitrate mix
Closing liquid, mixed liquor after treatment meets CJ343-2010 sewage and enters the B class standard of town sewer water standard.
The foregoing is only one embodiment of the invention, be not limiting as the present invention, all employing equivalents or equivalent transformation
The technical scheme that obtained of mode, all fall within protection scope of the present invention.
Claims (10)
1. an agitating type pair filters salt technology, it is characterised in that its step is as follows:
Step 1, by mixing high-salt wastewater in drainage screen enters into waste liquid regulating tank；
Step 2, in high-salt wastewater, acid adding or alkali regulation pH value are to 7-9, are then joined in waste liquid tank by high-pressure pump；
Step 3, joins in nanofiltration membrane component by waste liquid supercharging in waste liquid tank, and waste water enters into heated and stirred through nanofiltration membrane component
In groove；
Step 4, is stirred the waste water in heated and stirred groove heating, and keeps constant temperature；
Step 5, joins constant temperature waste liquid in NACE membrane module, enters into sump pit after membrane filtration, i.e. obtains discharging water.
2. filter salt technology according to a kind of agitating type described in claims 1 is double, it is characterised in that the acid in described step 2
Solution uses sulphuric acid, and the concentration of described sulphuric acid is 30-50%.
3. filter salt technology according to a kind of agitating type described in claims 1 is double, it is characterised in that the alkali in described step 2
Solution uses sodium hydroxide, and described naoh concentration is 1-3mol/L.
4. filter salt technology according to a kind of agitating type described in claims 1 is double, it is characterised in that described step 2 regulates
Use drainage screen to carry out precipitation after pH value to filter.
5. filter salt technology according to a kind of agitating type described in claims 1 is double, it is characterised in that receiving in described step 3
Filter membrane uses in sulfonated polyether sulfone class composite nanometer filtering film or aromatic polyamides class composite nanometer filtering film a kind of.
6. filter salt technology according to a kind of agitating type described in claims 1 is double, it is characterised in that the perseverance in described step 4
Temperature temperature is 50-60 DEG C, and mixing speed is 2000-3000r/min.
7. filter salt technology according to a kind of agitating type described in claims 1 is double, it is characterised in that in described step 5
NACE film uses nanostructured polymers to make, and adds a small amount of nanoparticle the most in the plastic and makes Organic substance matrix and inorganic matter
Dispersion phase is compound on nano-scale.
8. filter salt technology according to a kind of agitating type described in claims 7 is double, it is characterised in that described plastics include poly-second
One in alkene, polypropylene, polrvinyl chloride.
9. filter salt technology according to a kind of agitating type described in claims 7 is double, it is characterised in that described nanoparticle uses
One in nano-calcium carbonate, nano barium sulfate, the particle diameter of described nanoparticle is 100-500nm.
10. filter salt technology according to a kind of agitating type described in claims 1 is double, it is characterised in that discharge opeing in described step 5
Being provided with chiller in groove, described chiller uses aeration chiller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610573141.1A CN106219848A (en) | 2016-07-21 | 2016-07-21 | A kind of agitating type is double filters salt technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610573141.1A CN106219848A (en) | 2016-07-21 | 2016-07-21 | A kind of agitating type is double filters salt technology |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006000073A1 (en) * | 2004-06-23 | 2006-01-05 | Bioz Agri Products Inc. | Method for extracting fulvic acid molecules |
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| WO2009101157A1 (en) * | 2008-02-14 | 2009-08-20 | Otv Sa | Process for treating water by a nanofiltration or reverse osmosis membrane system permitting high conversion rates due to the elimination of organic matter |
| CN101935118A (en) * | 2010-08-16 | 2011-01-05 | 刘春喜 | Process for purifying and recycling hot water by membrane method |
| CN104591451A (en) * | 2014-12-25 | 2015-05-06 | 江苏水智乐自动化设备有限公司 | Tap water purification system |
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-
2016
- 2016-07-21 CN CN201610573141.1A patent/CN106219848A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006000073A1 (en) * | 2004-06-23 | 2006-01-05 | Bioz Agri Products Inc. | Method for extracting fulvic acid molecules |
| CN101041487A (en) * | 2007-03-20 | 2007-09-26 | 山东布莱恩化工技术有限公司 | Pretreatment method for sulfate radical removal from salt water by membrane process |
| WO2009101157A1 (en) * | 2008-02-14 | 2009-08-20 | Otv Sa | Process for treating water by a nanofiltration or reverse osmosis membrane system permitting high conversion rates due to the elimination of organic matter |
| CN101935118A (en) * | 2010-08-16 | 2011-01-05 | 刘春喜 | Process for purifying and recycling hot water by membrane method |
| CN204369669U (en) * | 2014-09-28 | 2015-06-03 | 星达（泰州）膜科技有限公司 | A kind of nanofiltration membrane purifier |
| CN104591451A (en) * | 2014-12-25 | 2015-05-06 | 江苏水智乐自动化设备有限公司 | Tap water purification system |
Non-Patent Citations (1)
| Title |
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| 郭建中: "NACE膜技术处理高盐废水的实验研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
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