CN106082522B - A kind of positive osmosis processing method of energy conservation high-salt wastewater - Google Patents
A kind of positive osmosis processing method of energy conservation high-salt wastewater Download PDFInfo
- Publication number
- CN106082522B CN106082522B CN201610635586.8A CN201610635586A CN106082522B CN 106082522 B CN106082522 B CN 106082522B CN 201610635586 A CN201610635586 A CN 201610635586A CN 106082522 B CN106082522 B CN 106082522B
- Authority
- CN
- China
- Prior art keywords
- liquid
- sodium citrate
- salt wastewater
- magnetic nano
- processing method
- 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.)
- Active
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 38
- 238000003672 processing method Methods 0.000 title claims abstract description 17
- 238000004134 energy conservation Methods 0.000 title claims description 9
- 239000007788 liquid Substances 0.000 claims abstract description 93
- 239000002122 magnetic nanoparticle Substances 0.000 claims abstract description 59
- 239000001509 sodium citrate Substances 0.000 claims abstract description 52
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000012528 membrane Substances 0.000 claims abstract description 33
- 238000009292 forward osmosis Methods 0.000 claims abstract description 24
- 238000002425 crystallisation Methods 0.000 claims abstract description 18
- 230000008025 crystallization Effects 0.000 claims abstract description 18
- 239000012153 distilled water Substances 0.000 claims abstract description 17
- 230000008595 infiltration Effects 0.000 claims abstract description 16
- 238000001764 infiltration Methods 0.000 claims abstract description 16
- 238000010790 dilution Methods 0.000 claims abstract description 8
- 239000012895 dilution Substances 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 239000006228 supernatant Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 239000000243 solution Substances 0.000 claims description 23
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 16
- 239000002244 precipitate Substances 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 10
- 238000001223 reverse osmosis Methods 0.000 claims description 10
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 claims description 9
- 125000002091 cationic group Chemical group 0.000 claims description 7
- 239000001913 cellulose Substances 0.000 claims description 7
- 229920002678 cellulose Polymers 0.000 claims description 7
- 238000005119 centrifugation Methods 0.000 claims description 7
- 229920000578 graft copolymer Polymers 0.000 claims description 7
- 229920002401 polyacrylamide Polymers 0.000 claims description 7
- 230000001376 precipitating effect Effects 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 238000002604 ultrasonography Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000001728 nano-filtration Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004695 Polyether sulfone Substances 0.000 claims description 2
- 239000004642 Polyimide Substances 0.000 claims description 2
- 229920002301 cellulose acetate Polymers 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920006393 polyether sulfone Polymers 0.000 claims description 2
- 229920002530 polyetherether ketone Polymers 0.000 claims description 2
- 229920001721 polyimide Polymers 0.000 claims description 2
- BAZVSMNPJJMILC-UHFFFAOYSA-N triadimenol Chemical group C1=NC=NN1C(C(O)C(C)(C)C)OC1=CC=C(Cl)C=C1 BAZVSMNPJJMILC-UHFFFAOYSA-N 0.000 claims description 2
- 238000001291 vacuum drying Methods 0.000 claims description 2
- 239000002033 PVDF binder Substances 0.000 claims 1
- 150000001336 alkenes Chemical class 0.000 claims 1
- 238000012986 modification Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 229920002492 poly(sulfone) Polymers 0.000 claims 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims 1
- 238000004065 wastewater treatment Methods 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 2
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 239000011261 inert gas Substances 0.000 description 6
- 239000010865 sewage Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 3
- -1 Kynoar Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000008239 natural water Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N glycolonitrile Natural products N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 235000015097 nutrients Nutrition 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
- 230000035515 penetration Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 238000009941 weaving 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/445—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by forward 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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/487—Treatment of water, waste water, or sewage with magnetic or electric fields using high frequency electromagnetic fields, e.g. pulsed electromagnetic fields
-
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F2001/5218—Crystallization
Abstract
The invention discloses a kind of positive osmosis processing methods of energy saving high-salt wastewater, the following steps are included: flocculant is added in waste water first, it staticly settles, it is crystallized in electromagnetism crystallization reactor after filtering, then positive infiltration processing is carried out to filtered supernatant, concentration recycling finally is carried out to the liquid that draws after dilution.The present invention draws liquid as forward osmosis membrane using the mixture of sodium citrate magnetic nano-particle and distilled water.The wastewater treatment method can effectively remove the pollutant in high-salt wastewater, and the water rate of recovery is high, draw liquid high recycling rate, operation is simple, at low cost.
Description
Technical field:
The present invention relates to field of waste water treatment, are specifically related to a kind of positive osmosis processing method of energy saving high-salt wastewater.
Background technique:
Since reform and opening-up, China's rapid economic development, industrial and agricultural production and the level of urbanization are continuously improved.However, water
Pollution problem is also on the rise therewith.Sewage can by sources be divided into sanitary sewage and trade effluent.Sanitary sewage is through municipal drainage
Pipe network enters municipal sewage plant after collecting, and handles and discharges in backward natural water up to standard.And trade effluent include chemical industry, papermaking,
The waste liquid generated during multiple industry productions such as printing and dyeing, food, weaving is wanted containing mass production raw material, product and intermediate
Ask relevant enterprise that will be discharged into again city planting ductwork or natural water after its stage processing.
COD is the most important thing of supervision in sewage and waste water, and where the difficult point administered.COD is most common
Characterize the index of organic pollution degree in water body；COD numerical value is higher, and organic pollution situation is more serious.The metabolism of organic matter,
Dissolved oxygen in water body can be made to greatly reduce, cause aquatile anoxic even dead, final water quality corruption fouls.In addition, a variety of
Organic matter in industrial wastewater often all has stronger toxicity, can do great damage to natural environment, to aquatile and
Human body causes directly to injure.
In addition, the salt content in waste water is excessively high, flows into soil system, can make geobiont, plant due to dehydration
Death causes disintegrating for soil ecosystem, and usually contains other high-enriched organics or nutrients in high-salt wastewater, if
Unprocessed direct emission will bring bigger pressure to water body environment, accelerate the eutrophication process of rivers and lakes.
Traditional wastewater treatment method mainly has absorption method, chemical oxidization method etc., but its processing cost is higher, efficiency ratio
It is lower.Positive infiltration is a kind of membrane separating process driven by osmotic pressure, i.e., water passes through selective semi-permeable membrane from higher water chemistry
During gesture region is spontaneously diffused into lower chemical potential region, fouling membrane is small, is not necessarily to impressed pressure, and low energy consumption, recycling
Rate is high, and concentrated water drainage is few, pollutes small.But currently used positive infiltration draws that liquid concentrated cost is higher, and reverse osmosis penetration is higher,
Cost for wastewater treatment raising is caused, and efficiency is lower.
Summary of the invention:
The object of the present invention is to provide a kind of positive osmosis processing methods of energy saving high-salt wastewater, and this method is high-efficient, cost
Low, fouling membrane is small, and it is low that liquid concentrated cost is drawn in the positive infiltration used, reusable.
To achieve the above object, the invention adopts the following technical scheme:
A kind of positive osmosis processing method of energy conservation high-salt wastewater, comprising the following steps:
(1) flocculant is added into high-salt wastewater, staticly settles, filters, electromagnetism crystallization reactor will be pumped into for clear liquid thereon
In crystallized, be pumped into the feeding liquid of forward osmosis membrane component after the supernatant liquid filtering after then crystallizing in electromagnetism crystallization reactor
Side circulates, while sodium citrate magnetic nano-particle just being permeated to draw liquid pump and enter the liquid side of drawing of forward osmosis membrane component and is being followed
Circulation is dynamic, obtains diluted drawing liquid；
(2) liquid is drawn into the dilution that step (1) obtains and carries out reverse osmosis concentration, draw liquid and return to forward osmosis membrane component
It re-uses, leakage water is to purify water outlet.
As a preferred embodiment of the above technical solution, in step (1), the flocculant is cationic polyacrylamide and cellulose
Graft copolymer.
As a preferred embodiment of the above technical solution, in step (1), there is graphite electrode plate in the electromagnetism crystallization reactor, even
It connects power supply and selects frequency modulation high-voltage ac power, the output power of frequency modulation high-voltage ac power is 800-1100W, output voltage AC
2-10kV is adjustable, and output frequency is that 30-50kHz is adjustable.
As a preferred embodiment of the above technical solution, in step (1), the sodium citrate magnetic nano-particle, which just permeates, draws liquid
It is made of sodium citrate magnetic nano-particle and distilled water, wherein sodium citrate magnetic nano-particle is to utilize sodium citrate
Ferroferric oxide magnetic nano-particles are modified.
As a preferred embodiment of the above technical solution, the sodium citrate magnetic nano-particle just permeates the preparation side for drawing liquid
Method, comprising the following steps:
(a) iron chloride and frerrous chloride are dissolved in respectively in 100ml distilled water, are then added drop-wise in sodium hydroxide solution,
Under inert gas protection, 30-60min is stirred in the state of 2000-3000 revs/min, be then heated to 70-90 DEG C, persistently stir
Mix 2-6h, cooled to room temperature is centrifuged 10-20min then at 5000-7000rpm, obtained washing of precipitate to neutrality,
It dries under vacuum conditions, obtains ferroferric oxide magnetic nano-particles；
(b) sodium citrate solution is added into ferroferric oxide magnetic nano-particles made from step (a), is heated to 80-
100 DEG C are vigorously stirred 1-2h, are then centrifuged 10-20min at 5000-8000rpm, are centrifuged again after obtained washing of precipitate,
It so repeats 2-5 times, the precipitating after centrifugation is dried under vacuum conditions finally, obtains sodium citrate modified magnetic nanoparticle
Son；
(c) sodium citrate modified magnetic nanoparticle made from step (b) is mixed evenly with distilled water, in 500-
Ultrasound 30-50min under the power of 1000W obtains sodium citrate modified magnetic nanoparticle and draws liquid.
As a preferred embodiment of the above technical solution, in step (a), the mass ratio of the material of the iron chloride and frerrous chloride is 1:
(2-4)。
As a preferred embodiment of the above technical solution, in step (a), the condition of the vacuum drying are as follows: at -16~-18 DEG C, do
Dry 12-18h.
As a preferred embodiment of the above technical solution, in step (b), the revolving speed being vigorously stirred is 8000-10000rpm.
As a preferred embodiment of the above technical solution, in step (2), the reverse osmosis concentration is to enter to receive by the diluted liquid pump that draws
Unit is filtered, the membrane material of nano-filtration unit membrane module is polyamide, membrane aperture 1-2nm, operating condition are as follows: feeding liquid side, behaviour
Making pressure is 0.4-0.5Pa, and feeding liquid side crossflow velocity is 0.8-1.2m/s.
As a preferred embodiment of the above technical solution, the material of the forward osmosis membrane is Triafol T, cellulose acetate, gathers
The mixing of one or more of sulfone, polyether sulfone, polyacrylonitrile, sulfonated polyether-ether-ketone, Kynoar, polyimides.
The invention has the following advantages:
(1) present invention draws liquid as forward osmosis membrane using sodium citrate magnetic nano-particle and draws liquid, and osmotic pressure is high,
It is easy to be separated from water, and stability is good, can reuse, and efficiently solves conventional dip liquid concentrating regenerative technology at high cost and asks
Topic；
(2) present invention carries out the pretreatment such as coagulating sedimentation, recrystallization to waste water before carrying out waste water just infiltration processing,
Effectively increase the removal rate of the organic pollutants such as COD in waste water；
(3) wastewater treatment method provided by the invention is high-efficient, at low cost, and it is small to the pollution of film to draw liquid, and processing side
Method is simply easily operated.
Specific embodiment:
In order to better understand the present invention, below by embodiment, the present invention is further described, and embodiment is served only for solving
The present invention is released, any restriction will not be constituted to the present invention.
Embodiment 1
A kind of positive osmosis processing method of energy conservation high-salt wastewater, comprising the following steps:
One, sodium citrate magnetic nano-particle is just permeating the preparation for drawing liquid
(a) iron chloride and frerrous chloride are dissolved in respectively in 100ml distilled water, are then added drop-wise in sodium hydroxide solution,
Under inert gas protection, 30min is stirred in the state of 2000 revs/min, be then heated to 70 DEG C, persistently stir 2h, it is naturally cold
But it is centrifuged 20min then at 7000rpm to room temperature, obtained washing of precipitate to neutrality is dried under vacuum conditions, obtained
Ferroferric oxide magnetic nano-particles；
(b) sodium citrate solution is added into ferroferric oxide magnetic nano-particles made from step (a), is heated to 80 DEG C
It is vigorously stirred 2h, is then centrifuged 20min at 5000rpm, is centrifuged again after obtained washing of precipitate, so repetition 2-5 times, most
The precipitating after centrifugation is dried under vacuum conditions afterwards, obtains sodium citrate modified magnetic nanoparticle；
(c) sodium citrate modified magnetic nanoparticle made from step (b) is mixed evenly with distilled water, in 500W
Power under ultrasound 50min, obtain sodium citrate modified magnetic nanoparticle and draw liquid；
Two, waste water just infiltration is handled
(1) graft copolymer of cationic polyacrylamide and cellulose is added into high-salt wastewater, staticly settles, mistake
Filter clear liquid will be pumped into electromagnetism crystallization reactor and crystallize thereon, then by the supernatant after crystallizing in electromagnetism crystallization reactor
The feeding liquid side that forward osmosis membrane component is pumped into after liquid filtering circulates, while sodium citrate magnetic nano-particle just being permeated and is drawn
The liquid side of drawing for taking liquid pump to enter forward osmosis membrane component circulates, and obtains diluted drawing liquid；
Three, positive infiltration is drawn liquid concentration and is recycled
(2) liquid is drawn into the dilution that step (1) obtains and carries out reverse osmosis concentration, draw liquid and return to forward osmosis membrane component
It re-uses, leakage water is to purify water outlet.
Embodiment 2
A kind of positive osmosis processing method of energy conservation high-salt wastewater, comprising the following steps:
One, sodium citrate magnetic nano-particle is just permeating the preparation for drawing liquid
(a) iron chloride and frerrous chloride are dissolved in respectively in 100ml distilled water, are then added drop-wise in sodium hydroxide solution,
Under inert gas protection, 30min is stirred in the state of 3000 revs/min, be then heated to 90 DEG C, persistently stir 2h, it is naturally cold
But it is centrifuged 20min then at 5000rpm to room temperature, obtained washing of precipitate to neutrality is dried under vacuum conditions, obtained
Ferroferric oxide magnetic nano-particles；
(b) sodium citrate solution is added into ferroferric oxide magnetic nano-particles made from step (a), is heated to 100
DEG C it is vigorously stirred 1h, is then centrifuged 10min at 8000rpm, is centrifuged again after obtained washing of precipitate, so repeated 2-5 times,
The precipitating after centrifugation is dried under vacuum conditions finally, obtains sodium citrate modified magnetic nanoparticle；
(c) sodium citrate modified magnetic nanoparticle made from step (b) is mixed evenly with distilled water,
Ultrasound 30min under the power of 1000W obtains sodium citrate modified magnetic nanoparticle and draws liquid；
Two, waste water just infiltration is handled
(1) graft copolymer of cationic polyacrylamide and cellulose is added into high-salt wastewater, staticly settles, mistake
Filter clear liquid will be pumped into electromagnetism crystallization reactor and crystallize thereon, then by the supernatant after crystallizing in electromagnetism crystallization reactor
The feeding liquid side that forward osmosis membrane component is pumped into after liquid filtering circulates, while sodium citrate magnetic nano-particle just being permeated and is drawn
The liquid side of drawing for taking liquid pump to enter forward osmosis membrane component circulates, and obtains diluted drawing liquid；
Three, positive infiltration is drawn liquid concentration and is recycled
(2) liquid is drawn into the dilution that step (1) obtains and carries out reverse osmosis concentration, draw liquid and return to forward osmosis membrane component
It re-uses, leakage water is to purify water outlet.
Embodiment 3
A kind of positive osmosis processing method of energy conservation high-salt wastewater, comprising the following steps:
One, sodium citrate magnetic nano-particle is just permeating the preparation for drawing liquid
(a) iron chloride and frerrous chloride are dissolved in respectively in 100ml distilled water, are then added drop-wise in sodium hydroxide solution,
Under inert gas protection, 40min is stirred in the state of 2500 revs/min, be then heated to 75 DEG C, persistently stir 5h, it is naturally cold
But it is centrifuged 15min then at 5500rpm to room temperature, obtained washing of precipitate to neutrality is dried under vacuum conditions, obtained
Ferroferric oxide magnetic nano-particles；
(b) sodium citrate solution is added into ferroferric oxide magnetic nano-particles made from step (a), is heated to 85 DEG C
It is vigorously stirred 4.8h, is then centrifuged 15min at 6000rpm, is centrifuged again after obtained washing of precipitate, is so repeated 2-5 times,
The precipitating after centrifugation is dried under vacuum conditions finally, obtains sodium citrate modified magnetic nanoparticle；
(c) sodium citrate modified magnetic nanoparticle made from step (b) is mixed evenly with distilled water, in 600W
Power under ultrasound 45min, obtain sodium citrate modified magnetic nanoparticle and draw liquid；
Two, waste water just infiltration is handled
(1) graft copolymer of cationic polyacrylamide and cellulose is added into high-salt wastewater, staticly settles, mistake
Filter clear liquid will be pumped into electromagnetism crystallization reactor and crystallize thereon, then by the supernatant after crystallizing in electromagnetism crystallization reactor
The feeding liquid side that forward osmosis membrane component is pumped into after liquid filtering circulates, while sodium citrate magnetic nano-particle just being permeated and is drawn
The liquid side of drawing for taking liquid pump to enter forward osmosis membrane component circulates, and obtains diluted drawing liquid；
Three, positive infiltration is drawn liquid concentration and is recycled
(2) liquid is drawn into the dilution that step (1) obtains and carries out reverse osmosis concentration, draw liquid and return to forward osmosis membrane component
It re-uses, leakage water is to purify water outlet.
Embodiment 4
A kind of positive osmosis processing method of energy conservation high-salt wastewater, comprising the following steps:
One, sodium citrate magnetic nano-particle is just permeating the preparation for drawing liquid
(a) iron chloride and frerrous chloride are dissolved in respectively in 100ml distilled water, are then added drop-wise in sodium hydroxide solution,
Under inert gas protection, 55min is stirred in the state of 2000 revs/min, be then heated to 80 DEG C, persistently stir 4h, it is naturally cold
But it is centrifuged 20min then at 6000rpm to room temperature, obtained washing of precipitate to neutrality is dried under vacuum conditions, obtained
Ferroferric oxide magnetic nano-particles；
(b) sodium citrate solution is added into ferroferric oxide magnetic nano-particles made from step (a), is heated to 90 DEG C
It is vigorously stirred 1.6h, is then centrifuged 15min at 7000rpm, is centrifuged again after obtained washing of precipitate, is so repeated 2-5 times,
The precipitating after centrifugation is dried under vacuum conditions finally, obtains sodium citrate modified magnetic nanoparticle；
(c) sodium citrate modified magnetic nanoparticle made from step (b) is mixed evenly with distilled water, in 700W
Power under ultrasound 40min, obtain sodium citrate modified magnetic nanoparticle and draw liquid；
Two, waste water just infiltration is handled
(1) graft copolymer of cationic polyacrylamide and cellulose is added into high-salt wastewater, staticly settles, mistake
Filter clear liquid will be pumped into electromagnetism crystallization reactor and crystallize thereon, then by the supernatant after crystallizing in electromagnetism crystallization reactor
The feeding liquid side that forward osmosis membrane component is pumped into after liquid filtering circulates, while sodium citrate magnetic nano-particle just being permeated and is drawn
The liquid side of drawing for taking liquid pump to enter forward osmosis membrane component circulates, and obtains diluted drawing liquid；
Three, positive infiltration is drawn liquid concentration and is recycled
(2) liquid is drawn into the dilution that step (1) obtains and carries out reverse osmosis concentration, draw liquid and return to forward osmosis membrane component
It re-uses, leakage water is to purify water outlet.
Embodiment 5
A kind of positive osmosis processing method of energy conservation high-salt wastewater, comprising the following steps:
One, sodium citrate magnetic nano-particle is just permeating the preparation for drawing liquid
(a) iron chloride and frerrous chloride are dissolved in respectively in 100ml distilled water, are then added drop-wise in sodium hydroxide solution,
Under inert gas protection, 55min is stirred in the state of 3000 revs/min, be then heated to 85 DEG C, persistently stir 3h, it is naturally cold
But it is centrifuged 10min then at 6500rpm to room temperature, obtained washing of precipitate to neutrality is dried under vacuum conditions, obtained
Ferroferric oxide magnetic nano-particles；
(b) sodium citrate solution is added into ferroferric oxide magnetic nano-particles made from step (a), is heated to 95 DEG C
It is vigorously stirred 1.2h, is then centrifuged 20min at 7500rpm, is centrifuged again after obtained washing of precipitate, is so repeated 2-5 times,
The precipitating after centrifugation is dried under vacuum conditions finally, obtains sodium citrate modified magnetic nanoparticle；
(c) sodium citrate modified magnetic nanoparticle made from step (b) is mixed evenly with distilled water, in 800W
Power under ultrasound 45min, obtain sodium citrate modified magnetic nanoparticle and draw liquid；
Two, waste water just infiltration is handled
(1) graft copolymer of cationic polyacrylamide and cellulose is added into high-salt wastewater, staticly settles, mistake
Filter clear liquid will be pumped into electromagnetism crystallization reactor and crystallize thereon, then by the supernatant after crystallizing in electromagnetism crystallization reactor
The feeding liquid side that forward osmosis membrane component is pumped into after liquid filtering circulates, while sodium citrate magnetic nano-particle just being permeated and is drawn
The liquid side of drawing for taking liquid pump to enter forward osmosis membrane component circulates, and obtains diluted drawing liquid；
Three, positive infiltration is drawn liquid concentration and is recycled
(2) liquid is drawn into the dilution that step (1) obtains and carries out reverse osmosis concentration, draw liquid and return to forward osmosis membrane component
It re-uses, leakage water is to purify water outlet.
High-salt wastewater is handled respectively using method described in embodiment, water quality pH is 6.8-7.4, and CODcr is
2000mg/L, chloride 23000mg/L, BOD5For 80.9mg/L, SS 23000mg/L, fluoride 19.0mg/L, total cyanogen
Compound is 0.25mg/L, total arsenic 3.56mg/L, total mercury 0.15mg/L.
After processing, it is 97% that the water rate of recovery, which is 98.89% or more, TDS removal rate in 98% or more, CODcr removal rate,
More than.
Claims (6)
1. a kind of positive osmosis processing method of energy conservation high-salt wastewater, which comprises the following steps:
(1) flocculant is added into high-salt wastewater, staticly settles, filter, will thereon clear liquid be pumped into electromagnetism crystallization reactor into
Then row crystallization follows the feeding liquid side that forward osmosis membrane component is pumped into after the supernatant liquid filtering after crystallizing in electromagnetism crystallization reactor
Circulation is dynamic, at the same sodium citrate magnetic nano-particle just permeated draw that liquid pump enters forward osmosis membrane component draw liquid side recycle stream
It is dynamic, it obtains diluted drawing liquid；
(2) liquid is drawn into the dilution that step (1) obtains and carries out reverse osmosis concentration, draw liquid and return to forward osmosis membrane component again
It utilizes, leakage water is to purify water outlet；
In step (1), the flocculant is the graft copolymer of cationic polyacrylamide and cellulose；
In step (1), there is graphite electrode plate in the electromagnetism crystallization reactor, connection power supply selects frequency modulation high-voltage ac power,
The output power of frequency modulation high-voltage ac power is 800-1100W, and output voltage is that AC 2-10kV is adjustable, output frequency 30-
50kHz is adjustable；
In step (1), the sodium citrate magnetic nano-particle just permeating draw liquid be by sodium citrate magnetic nano-particle and
Distilled water composition, wherein sodium citrate magnetic nano-particle be using sodium citrate to ferroferric oxide magnetic nano-particles into
Row modification obtains；
The sodium citrate magnetic nano-particle, which is just permeating, to be drawn liquid and is prepared by following preparation methods:
(a) iron chloride and frerrous chloride are dissolved in respectively in 100ml distilled water, are then added drop-wise in sodium hydroxide solution, lazy
Under property gas shield, 30-60min is stirred in the state of 2000-3000 revs/min, is then heated to 70-90 DEG C, persistently stirs 2-
6h, cooled to room temperature are centrifuged 10-20min, obtained washing of precipitate to neutrality, true then at 5000-7000rpm
It is dried under empty condition, obtains ferroferric oxide magnetic nano-particles；
(b) sodium citrate solution is added into ferroferric oxide magnetic nano-particles made from step (a), is heated to 80-100 DEG C
It is vigorously stirred 1-2h, is then centrifuged 10-20min at 5000-8000rpm, is centrifuged again after obtained washing of precipitate, so weight
It is 2-5 times multiple, the precipitating after centrifugation is dried under vacuum conditions finally, obtains sodium citrate modified magnetic nanoparticle；
(c) sodium citrate modified magnetic nanoparticle made from step (b) is mixed evenly with distilled water, in 500-
Ultrasound 30-50min under the power of 1000W obtains sodium citrate modified magnetic nanoparticle and draws liquid.
2. a kind of positive osmosis processing method of energy saving high-salt wastewater as described in claim 1, it is characterised in that: in step (a),
The mass ratio of the material of the iron chloride and frerrous chloride is 1:(2-4).
3. a kind of positive osmosis processing method of energy saving high-salt wastewater as described in claim 1, it is characterised in that: in step (a),
The condition of the vacuum drying are as follows: at -16~-18 DEG C, dry 12-18h.
4. a kind of positive osmosis processing method of energy saving high-salt wastewater as described in claim 1, it is characterised in that: in step (b),
The revolving speed being vigorously stirred is 8000-10000rpm.
5. a kind of positive osmosis processing method of energy saving high-salt wastewater as described in claim 1, it is characterised in that: in step (2),
The reverse osmosis concentration is that the diluted liquid pump that draws is entered nano-filtration unit, and the membrane material of nano-filtration unit membrane module is polyamide, film
Aperture is 1-2nm, operating condition are as follows: feeding liquid side, operating pressure 0.4-0.5Pa, feeding liquid side crossflow velocity are 0.8-
1.2m/s。
6. a kind of positive osmosis processing method of energy saving high-salt wastewater as described in claim 1, it is characterised in that: the positive infiltration
The material of film is Triafol T, cellulose acetate, polysulfones, polyether sulfone, polyacrylonitrile, sulfonated polyether-ether-ketone, polyvinylidene fluoride
The mixing of one or more of alkene, polyimides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610635586.8A CN106082522B (en) | 2016-08-04 | 2016-08-04 | A kind of positive osmosis processing method of energy conservation high-salt wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610635586.8A CN106082522B (en) | 2016-08-04 | 2016-08-04 | A kind of positive osmosis processing method of energy conservation high-salt wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106082522A CN106082522A (en) | 2016-11-09 |
| CN106082522B true CN106082522B (en) | 2019-03-12 |
Family
ID=57454283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610635586.8A Active CN106082522B (en) | 2016-08-04 | 2016-08-04 | A kind of positive osmosis processing method of energy conservation high-salt wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106082522B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106495264A (en) * | 2016-11-21 | 2017-03-15 | 张震霖 | A kind of nanocrystal vaporizer and reverse osmosis concentrated salt water treating system |
| CN107698084B (en) * | 2017-10-17 | 2021-06-04 | 广州雅津水处理设备有限公司 | Reduce filtration system of concentrated salt volume of waste water |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6638494B1 (en) * | 1996-03-18 | 2003-10-28 | Herbert Pilgrimm | Super-paramagnetic particles with increased R1 relaxivity, process for producing said particles and use thereof |
| CN102897846A (en) * | 2011-07-29 | 2013-01-30 | 韩国科学技术研究院 | Recyclable superparamagnetic nanoparticles and method for producing the same |
| CN104649502A (en) * | 2015-02-28 | 2015-05-27 | 厦门诺迪膜科技有限公司 | Method for zero discharge recycling of high-salt waste water with electromagnetic forward osmosis reactor |
| CN204417182U (en) * | 2015-01-26 | 2015-06-24 | 连芷萱 | Positive osmosis-purified water device |
| CN104803448A (en) * | 2015-04-02 | 2015-07-29 | 哈尔滨工程大学 | Forward osmosis treatment method of wastewater with high salinity and high organic matter concentration |
-
2016
- 2016-08-04 CN CN201610635586.8A patent/CN106082522B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6638494B1 (en) * | 1996-03-18 | 2003-10-28 | Herbert Pilgrimm | Super-paramagnetic particles with increased R1 relaxivity, process for producing said particles and use thereof |
| CN102897846A (en) * | 2011-07-29 | 2013-01-30 | 韩国科学技术研究院 | Recyclable superparamagnetic nanoparticles and method for producing the same |
| CN204417182U (en) * | 2015-01-26 | 2015-06-24 | 连芷萱 | Positive osmosis-purified water device |
| CN104649502A (en) * | 2015-02-28 | 2015-05-27 | 厦门诺迪膜科技有限公司 | Method for zero discharge recycling of high-salt waste water with electromagnetic forward osmosis reactor |
| CN104803448A (en) * | 2015-04-02 | 2015-07-29 | 哈尔滨工程大学 | Forward osmosis treatment method of wastewater with high salinity and high organic matter concentration |
Non-Patent Citations (1)
| Title |
|---|
| "磁性水凝胶的制备及其在正渗透中的应用";骆华勇等;《华中科技大学学报（自然科学版）》;20150630;第43卷(第6期);第122-127页 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106082522A (en) | 2016-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101955282B (en) | Method for realizing zero emission of dyeing wastewater with high salinity in printing and dyeing enterprises | |
| CN108083552B (en) | Treatment method of textile industry wastewater | |
| CN108275817A (en) | A kind of processing method of the high salinity waste water reclaiming of high rigidity | |
| CN105541036A (en) | Treating system and method for reusing wastewater in printing and dyeing industry | |
| CN104649521B (en) | The printing-dyeing waste water treatment process of circulation in a kind of muddy water strengthening | |
| CN103435233B (en) | Equipment and method for recycling chemical fiber continuous-spinning wastewater | |
| CN105923704A (en) | Forward osmosis draw fluid recycling method, wastewater treatment method and treatment device | |
| CN110683716A (en) | Wastewater treatment process for wastewater generated by automobile accessory coating production line | |
| CN105174663A (en) | Method for treating dye waste water | |
| CN106082522B (en) | A kind of positive osmosis processing method of energy conservation high-salt wastewater | |
| CN105645662A (en) | A device and a method for removing degradation-resistant organic matters in a membrane filtration concentrate liquid | |
| CN110156249B (en) | Integration method for pretreatment of high-concentration printing and dyeing wastewater based on tubular membrane | |
| CN105417851B (en) | Treatment method of printing and dying wastewater and its Compound biological flocculant preparation method | |
| CN106630290A (en) | Treatment and recovery method of graphene acid-containing wastewater | |
| CN104129886A (en) | Membrane bioreactor process used in vitamin pharmaceutical wastewater treatment | |
| CN114873857B (en) | System and method for recycling and standard-reaching discharge of carbon dodecyl alcohol ester wastewater | |
| CN206219367U (en) | A kind of processing unit of yarn-dyed fabric yarn dyeing waste water | |
| CN110204109A (en) | A kind of the Application of Circulating Waste Water in Thermal Power Plants advanced treatment system and method for municipal administration water resource of reclaimed water | |
| CN114133087A (en) | Resourceful treatment process for high-salinity wastewater | |
| CN110194559A (en) | A kind of process of colour-spun yarns dyeing waste-water zero-emission and resource reusing | |
| CN112979038B (en) | Zero-discharge treatment process for printing and dyeing wastewater | |
| CN209740918U (en) | Zero-discharge treatment device for landfill leachate | |
| CN103408196B (en) | Method for treating wastewater containing fluorescent whitening agent | |
| CN107473488B (en) | Treatment method of para-ester production wastewater | |
| CN111825276A (en) | Method for recycling sodium sulfate accelerant in dyeing raffinate of reactive dye |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190215 Address after: 313000 Huzhou Huzhou Economic and Technological Development Zone, Zhejiang Province Applicant after: HUZHOU HUINENG ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Address before: 313000 No. 599, Shan right road, Yangjia Town, Huzhou economic and Technological Development Zone, Huzhou, Zhejiang Applicant before: Chen Yonglin |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190729 Address after: 225500 Binhe Road of Modern Science and Technology Industrial Park in Jiangyan District, Taizhou City, Jiangsu Province Patentee after: JIANGSU SOUTHEAST ENVIRONMENTAL PROTECTION SCIENCE AND TECHNOLOGY CO.,LTD. Address before: 313000 Huzhou Huzhou Economic and Technological Development Zone, Zhejiang Province Patentee before: HUZHOU HUINENG ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A forward osmosis treatment method for energy-saving and high salt wastewater Granted publication date: 20190312 Pledgee: Industrial Bank Co.,Ltd. Taizhou Branch Pledgor: JIANGSU SOUTHEAST ENVIRONMENTAL PROTECTION SCIENCE AND TECHNOLOGY CO.,LTD. Registration number: Y2024980012144 |