CN106145496A - The comprehensive utilization process of viscose fiber acid waste water - Google Patents
The comprehensive utilization process of viscose fiber acid waste water Download PDFInfo
- Publication number
- CN106145496A CN106145496A CN201610629933.6A CN201610629933A CN106145496A CN 106145496 A CN106145496 A CN 106145496A CN 201610629933 A CN201610629933 A CN 201610629933A CN 106145496 A CN106145496 A CN 106145496A
- Authority
- CN
- China
- Prior art keywords
- reverse osmosis
- waste water
- water
- filter
- viscose fiber
- 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
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
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
-
- 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
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/03—Pressure
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/10—Energy recovery
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The comprehensive utilization process of a kind of viscose fiber acid waste water, is first to be filtered by filter by viscose fiber acid waste water, removes the float in waste water, and filtered solution enters next step and processes；Then filtered solution being imported counter-infiltration system, obtain membrance concentration liquid and film permeate, film permeate enters step C process directly as process water reuse, membrance concentration liquid；Eventually passing the membrance concentration liquid that reverse-osmosis treated obtains and import after multi-effect evaporator concentrates, send into crystallizer crystallization, obtain sulfate crystal, crystalline mother solution is sulphuric acid, and containing sodium sulfate and zinc sulfate, can direct reuse in coagulating bath.The present invention is by using dual-membrane process, it is achieved that the recovery of sulphuric acid, zinc sulfate, sodium sulfate and water, solves a difficult problem and the difficult problem for solid waste of zinc discharge, it is achieved that the comprehensive utilization of resource.
Description
Technical field
The present invention relates to three-protection design, particularly relate to the comprehensive utilization process of a kind of viscose fiber acid waste water.
Background technology
Viscose rayon is the regenerated celulose fibre made for raw material with natural fiber.Viscose fiber production process produces
Substantial amounts of waste water.These waste water mainly contain sulphuric acid, zinc sulfate, sodium sulfate, Carbon bisulfide, hydrogen sulfide, the Organic substance of dissolving,
Float etc., are one of the primary pollution source of textile industry, environment bring the biggest harm.
Acid waste water occurs mainly with spinning workshop, acid station and postprocessing working procedures.Including wash spinning-drawing machine water, acid station washed
Filter draining, wash a water and post treatment acid wash water.Additionally, clean evaporation equipment, crystallizer also produce a certain amount of spent acidic
Water.Acid waste water mainly contains sulphuric acid, sodium sulfate, zinc sulfate etc..Wherein acid waste water is the maximum a kind of water that works the mischief, its
Acid content is high, and sodium sulphate content is high, and other pollutant are the highest, and intractability is bigger.In viscose production technology, spent acidic
The temperature of water and concentration according to the different advantage deviations of each producer process conditions, typical temperature 90-95 degree, sulphuric acid 10-20g/L,
Sodium sulfate 40-60g/L, zinc sulfate 1-2g/L, remaining is Organic substance and sulfide.
During at present viscose acid waste water processes many and alkaline waste water and after, then use Physiochemical and biochemical two stages for the treatment of.General acid
Property waste water mix with alkaline waste water after about pH3.0, remove after volatile material through stripping, use lime cream regulation pH to 10-
11, zinc ion is precipitated, clear liquid uses Wastewater Treated by Activated Sludge Process, and through sedimentation, draining realizes qualified discharge.But due to zinc ion
The optimal pH of precipitation is narrower, and during lime cream adds, reaction is incomplete, or throwing amount is improper, and zinc ion can be caused to precipitate
Not exclusively, cause subsequent biochemical water outlet the most up to standard.This technique is brought substantial amounts of reluctant containing zinc solid waste simultaneously, and makes
Become the substantial amounts of wasting of resources.Therefore finding and can solve an above-mentioned difficult problem, the technical scheme that can realize again resource reclaim is viscose row
Industry in the urgent need to.
Summary of the invention
The purpose of the present invention, it is simply that in order to solve the problem that above-mentioned prior art exists, it is provided that the viscose of a kind of low cost
The comprehensive utilization process of fibrillary acidic waste water.
In order to achieve the above object, present invention employs techniques below scheme: a kind of viscose fiber acid waste water comprehensive
Utilize technique, comprise the following steps:
A, pretreatment
Viscose fiber acid waste water is filtered by filter, removes the float in waste water, under filtered solution enters
One step process；
B, reverse osmosis
Filtered solution being imported counter-infiltration system, obtains membrance concentration liquid and film permeate, film permeate is used directly as technique
Water circulation, membrance concentration liquid enters step C and processes；
C, condensing crystallizing
After the membrance concentration liquid importing multi-effect evaporator concentration that reverse-osmosis treated obtains, send into crystallizer crystallization, obtain
Sulfate crystal, crystalline mother solution is sulphuric acid, and containing sodium sulfate and zinc sulfate, can direct reuse in coagulating bath.
Described pretreatment also includes through heat exchanger, viscose fiber acid waste water is reduced the temperature to≤40 DEG C, this heat exchanger
Before being placed on filter or after filter.
Filter described in step A uses ultrafiltration membrane filter or microporous filtration, and pore size filter is 0.01-1 μm, mistake
Filtering method is dead-end filtration or cross flow filter or the combination using one or both forms in dead-end filtration, cross flow filter, film
Element uses tubular type, board-like, dish-style, rolling or capillary type.
When using cross flow filter, film surface velocity controls at 2～6 meter per seconds, and operation Stress control, 0.1～1MPa, operates
Temperature controls at 1～90 DEG C.
When using dead-end filtration, membrane component uses external pressing type hollow fibrous membrane, and designs filtrate backwash and air bump rinse operation, when
When the transmembrane pressure of film exceedes setting value, system start-up backwash procedure；Filtrate enters into into water survey by producing water section, by film surface
Pollutant are taken away, thus recover membrane flux.
Described counter-infiltration system uses anti-pollution and acidproof reverse-osmosis membrane element, this anti-pollution and acidproof reverse-osmosis membrane element
To the interception capacity of sodium chloride more than 98%.
The equipment of described counter-infiltration system include feed water by reverse osmosis pump, reverse osmosis charge filter, reverse osmosis high-pressure pump and
Reverse osmosis units, each equipment is connected by pipeline, and the filtered solution come from filter feeds through feed water by reverse osmosis pump, reverse osmosis successively
Filter and reverse osmosis high-pressure pump enter reverse osmosis units, and after reverse-osmosis treated, film permeate returns directly as process water
With, membrance concentration liquid enters step C, concentrates further.
Described counter-infiltration system includes the multi-stage reverse osmosis equipment of series connection, and the filtered solution come from filter initially enters first
Level reverse osmosis equipment, the membrance concentration liquid of first order reverse osmosis equipment enters second level reverse osmosis equipment, second level reverse osmosis equipment
Membrance concentration liquid enter third level reverse osmosis equipment, the membrance concentration liquid of afterbody reverse osmosis equipment is to concentrated solution transfer tank；Respectively
The film permeate of level reverse osmosis equipment collects centralized collection as reverse osmosis produced water, and this reverse osmosis produced water can return as industrial water
With.
Every grade of described multi-stage reverse osmosis equipment includes contact the reverse-osmosis circulating pump arranged and one group of reverse osmosis membrane
Group, the membrance concentration liquid of the reverse osmosis membrane group of upper level reverse osmosis equipment enter next stage reverse osmosis equipment reverse-osmosis circulating pump or
Entering concentrated solution transfer tank, the membrance concentration liquid of the reverse osmosis membrane group of afterbody reverse osmosis equipment is directly entered concentrated solution transfer
Tank；The film permeate centralized collection of the reverse osmosis membrane group of reverse osmosis equipments at different levels is as reverse osmosis produced water, and this reverse osmosis produced water can
As industrial water reuse.
The operation Stress control of described counter-infiltration system is at 1-10Mpa.
Filtered solution through pretreatment enters reverse osmosis equipment, and operation Stress control is at 1-10Mpa, and total dissolved solidss are from 5-
8%, it is concentrated to 15-20%.For reducing concentration process energy consumption, energy recycle device can be used in reverse osmosis equipment.Water Sproading
Rate reaches 60-80%, and the water quality of reverse osmosis filter liquor meets technical process water requirement.
The comprehensive utilization process of viscose fiber acid waste water of the present invention is by using dual-membrane process, it is achieved that sulphuric acid, sulfur
Acid zinc, sodium sulfate and the recovery of water, solve a difficult problem and the difficult problem for solid waste of zinc discharge, it is achieved that the comprehensive utilization of resource
With.Simultaneously because use membrane combination technology dehydration to concentrate, greatly reduce the cost of evaporation so that whole technique is compared only with steaming
Send dehydration, there is more preferable economy.
Water is processed by pretreatment, allows to meet the feed needs of reverse osmosis.Design especially with supertension,
High concentration multiple runs, and the load of counter-infiltration system increases, it is easier to produces and pollutes.Therefore higher wanting is proposed for pretreatment
Ask.
Acid and salt through reverse osmosis initial concentration is concentrated by evaporation and concentration further, crystallization, obtains sulfate crystal, real
The reuse of existing sodium sulfate.Sulphuric acid and zinc sulfate are stayed in crystalline mother solution, are back to use in coagulating bath, it is achieved sulphuric acid returns with zinc sulfate
With.
In order to ensure the stable operation of counter-infiltration system and increase the service life, it has strict demand to water inlet.Viscose
Wash a waste water to mainly contain: sulphuric acid, sodium sulfate, zinc sulfate, elemental sulfur, fiber, saccharide etc., in yellow turbid solution.Wherein suspend
Thing content is high, it is difficult to meet the inflow requirement of reverse osmosis.Without suitable pretreatment, it is impossible to ensure that counter-infiltration system is the most steady
Fixed operation.
This technique use Millipore filtration techniques or ultra filtration technology carry out pretreatment.In pretreatment, waste water
Float, as the insoluble substance such as fiber, elemental sulfur is removed, filtered solution enters counter-infiltration system.
Waste water and clear liquid through pretreatment enters first-stage reverse osmosis system.Waste water is divided into two parts: membrance concentration liquid and film are saturating
Cross liquid.Wherein salinity includes that sodium sulfate, zinc sulfate, sulphuric acid etc. enter membrance concentration liquid end, it is achieved initial concentration.And film permeate end
Middle acid and zinc sulfate, sodium sulfate are removed, and can realize reuse directly as process water.And membrance concentration liquid end is through initial concentration
Membrance concentration liquid, enter two-pass reverse osmosis concentrate further.Two-pass reverse osmosis uses supertension design, inorganic by waste water
Salt, acid etc. concentrate further, and concentrated solution enters back into vaporizer and is evaporated concentrating, and carries out sulfate crystal.
Concentrating through vaporizer, crystallize, its mother solution is concentrated sulphuric acid, and containing a certain amount of sodium sulfate and zinc sulfate, can be straight
Connect and be back to use in coagulating bath as sulphuric acid.Sulphuric acid and zinc sulfate is made to be recycled utilization.
Using above-mentioned dual-membrane process, the reuse achieving sodium sulfate, sulphuric acid, zinc sulfate of low cost, simultaneously without solid
The discharge of garbage, water realizes reuse.
Detailed description of the invention
Embodiment 1
The acid waste water of 90-95 degree Celsius, consisting of: sulphuric acid 10-20g/L, sodium sulfate 40-60g/L, zinc sulfate 1-
2g/L, remaining is Organic substance and sulfide.After this water inserts storage tank stop a few hours, by being pumped into heat-exchange system, acid waste water
Temperature is reduced to 40 degrees Celsius, then carries out pretreatment, and after ultrafiltration, float is thoroughly removed, filtrate clear, filtrate
Enter counter-infiltration system.Process through first-stage reverse osmosis system, operate pressure≤4Mpa, temperature≤40 degree Celsius, membrance concentration liquid
In total TDS reach 8-10%, membrance concentration liquid enters two-stage reverse osmosis system.Two-pass reverse osmosis, operates pressure≤10MPa, dense
It is reduced to total TDS and reaches 10-18%.This membrance concentration liquid, after concentrating with the multi-effect evaporator of heat pump assembly, enters crystallization
Tank crystallizes, and limit feeds, and limit crystallizes, and causes sulfuric acid concentration and reaches reuse requirement, is performing centrifugal separation on, obtains sulfate crystal and crystallization
Mother solution.Anhydrous sodium sulfate is obtained through sulfate crystal drying.Crystalline mother solution is back to use in coagulating bath.
Sulfate crystal is as commodity selling.Mother solution after separating sodium sulfate is mainly concentrated sulphuric acid and zinc sulfate, is back to use
In acid bath, it is achieved closed cycle.
Improve the implementation process of technique: the membrance concentration liquid of two-pass reverse osmosis, entrance evaporation is tied after heat-exchange system heat exchange
Crystallographic system is united.The thermal source of heat exchange carrys out tap water (acid waste water), or with the water of water heat exchange.
Embodiment 2
10M3Acid waste water 90-95 degree Celsius, its TDS is 4%.Insert in tank and stop, through plate type heat exchanger by water temperature
Dropping to 40 degrees Celsius, enter doughnut through pump and surpass/microfiltration systems, filtrate is placed in tank.Hollow-fibre membrane surpasses/microfiltration systems,
Use membrane aperture 0.1 micron.System uses constant current design, and along with the carrying out filtered, the transmembrane pressure of system is gradually increased.Wait to reach
System automatic back-washing after setting pressure reduction.Ultrafiltration Water Sproading rate reaches 98%.Ultrafiltrate enters counter-infiltration system.
Entered in counter-infiltration system by transport pump through the filtrate of microfiltration from tank, operation pressure from 3 to 10MPa, along with
The carrying out concentrated, the increase of concentrated solution end concentration, pressure gradually steps up.Reaching 18% to concentrated solution TDS, concentrated solution enters two grades
Reverse osmosis.Filter liquor is in activated-charcoal column, direct reuse to technique.Control temperature≤40 degree Celsius.
Concentrated solution enters evaporation and crystallization system condensing crystallizing.Reverse osmosis filtrate direct reuse.Or through activated carbon adsorption
After, reuse.
The membrance concentration liquid of reverse osmosis enters multi-effect evaporator and is evaporated, until forming supersaturated solution, sends into crystallizer,
The crystal constantly produced, material carries out solid-liquid separation by centrifuge, and multiple-effect after Clear liquid tank and the mixing of overflow clear liquid sent back to by clear liquid
Vaporizer continues evaporation, crystallization, and solid phase discharges system..Obtain sulfate crystal, be dried, temperature, obtain anhydrous sodium sulfate knot
Brilliant.So it is repeated several times, until the acid concentration of centrifugal clear liquid meets reuse concentration.Crystalline mother solution is concentrated sulphuric acid and zinc sulfate.
It is back to use in acid bath.
Embodiment 3
10M3Acid waste water 90-95 degree Celsius, its TDS is 8%.Insert in tank and stop, enter pottery through pump and surpass/microfiltration system
System, filtrate is placed in tank.Ceramic membrane surpasses/microfiltration systems, uses membrane aperture 0.1 micron.System uses constant current design, along with filtration
Carrying out, the transmembrane pressure of system is gradually increased.Ultrafiltration Water Sproading rate reaches 98%.Ultrafiltrate through plate type heat exchanger by water
Temperature drop to 40 degrees Celsius, is directly entered dish-style counter-infiltration system.Operation pressure 4MPa to 10MPa.Along with the concentration of concentrated solution increases
Adding, pressure is stepped up.In concentrated solution, TDS reaches 20% from 8%.Concentrated solution enters evaporation and crystallization system condensing crystallizing.Two grades
After reverse osmosis filtrate is directly over activated carbon adsorption, direct reuse.
The membrance concentration liquid of reverse osmosis enters after evaporating with multi-effect evaporator, and subsequent technique is with embodiment 2.
Claims (10)
1. the comprehensive utilization process of a viscose fiber acid waste water, it is characterised in that comprise the following steps:
A, pretreatment
Being filtered by filter by viscose fiber acid waste water, remove the float in waste water, filtered solution enters next step
Rapid process；
B, reverse osmosis
Filtered solution being imported counter-infiltration system, obtains membrance concentration liquid and film permeate, film permeate returns directly as process water
With, membrance concentration liquid enters step C and processes；
C, condensing crystallizing
After the membrance concentration liquid importing multi-effect evaporator concentration that reverse-osmosis treated obtains, send into crystallizer crystallization, obtain sulphuric acid
Sodium crystallizes, and crystalline mother solution is sulphuric acid, and containing sodium sulfate and zinc sulfate, can direct reuse in coagulating bath.
2. the comprehensive utilization process of viscose fiber acid waste water as claimed in claim 1, it is characterised in that described pretreatment is also
Reduce the temperature to≤40 DEG C including by viscose fiber acid waste water through heat exchanger, before this heat exchanger is placed on filter or filter
After device.
3. the comprehensive utilization process of viscose fiber acid waste water as claimed in claim 1, it is characterised in that mistake described in step A
Filter uses ultrafiltration membrane filter or microporous filtration, and pore size filter is 0.01-1 μm, filter method be dead-end filtration or
Cross flow filter or use the combination of one or both forms in dead-end filtration, cross flow filter, membrane component use tubular type, board-like,
Dish-style, rolling or capillary type.
4. the comprehensive utilization process of viscose fiber acid waste water as claimed in claim 3, it is characterised in that use cross flow filter
Time, film surface velocity controls at 2～6 meter per seconds, and operation Stress control is 0.1～1MPa, and operation temperature controls at 1～90 DEG C.
5. the comprehensive utilization process of viscose fiber acid waste water as claimed in claim 3, it is characterised in that use dead-end filtration
Time, membrane component uses external pressing type hollow fibrous membrane, and designs filtrate backwash and air bump rinse operation, when the transmembrane pressure of film exceedes setting
During value, system start-up backwash procedure；Filtrate enters into into water survey by producing water section, is taken away by film surface contaminant, thus recovers
Membrane flux.
6. the comprehensive utilization process of viscose fiber acid waste water as claimed in claim 1, it is characterised in that described reverse osmosis system
System uses anti-pollution and acidproof reverse-osmosis membrane element, this anti-pollution and acidproof reverse-osmosis membrane element to exist the interception capacity of sodium chloride
More than 98%.
7. the comprehensive utilization process of viscose fiber acid waste water as claimed in claim 1, it is characterised in that described reverse osmosis system
The equipment of system includes feed water by reverse osmosis pump, reverse osmosis charge filter, reverse osmosis high-pressure pump and reverse osmosis units, and each equipment passes through
Pipeline is connected, and the filtered solution from filter is successively through feed water by reverse osmosis pump, reverse osmosis charge filter and reverse osmosis high-pressure pump
Entering reverse osmosis units, after reverse-osmosis treated, film permeate enters step C directly as process water reuse, membrance concentration liquid,
Concentrate further.
8. the comprehensive utilization process of viscose fiber acid waste water as claimed in claim 1, it is characterised in that described reverse osmosis system
System includes the multi-stage reverse osmosis equipment of series connection, and the filtered solution come from filter initially enters first order reverse osmosis equipment, the first order
The membrance concentration liquid of reverse osmosis equipment enters second level reverse osmosis equipment, and the membrance concentration liquid of second level reverse osmosis equipment enters the third level
Reverse osmosis equipment, the membrance concentration liquid of afterbody reverse osmosis equipment is to concentrated solution transfer tank；The film of reverse osmosis equipments at different levels passes through
Liquid collects centralized collection as reverse osmosis produced water, and this reverse osmosis produced water can be as industrial water reuse.
9. the comprehensive utilization process of viscose fiber acid waste water as claimed in claim 8, it is characterised in that described multistage reverse osmosis
Every grade of equipment includes contact the reverse-osmosis circulating pump arranged and one group of reverse osmosis membrane group thoroughly, upper level reverse osmosis equipment
The membrance concentration liquid of reverse osmosis membrane group enters the reverse-osmosis circulating pump of next stage reverse osmosis equipment or enters concentrated solution transfer tank, finally
The membrance concentration liquid of the reverse osmosis membrane group of first-stage reverse osmosis equipment is directly entered concentrated solution transfer tank；The reverse osmosis of reverse osmosis equipments at different levels
The film permeate centralized collection of permeable membrane group is as reverse osmosis produced water, and this reverse osmosis produced water can be as industrial water reuse.
10. the comprehensive utilization process of viscose fiber acid waste water as claimed in claim 1, it is characterised in that described reverse osmosis
The operation Stress control of system is at 1-10Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610629933.6A CN106145496B (en) | 2016-08-03 | 2016-08-03 | The comprehensive utilization process of viscose fiber acid waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610629933.6A CN106145496B (en) | 2016-08-03 | 2016-08-03 | The comprehensive utilization process of viscose fiber acid waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106145496A true CN106145496A (en) | 2016-11-23 |
| CN106145496B CN106145496B (en) | 2019-05-21 |
Family
ID=57329061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610629933.6A Active CN106145496B (en) | 2016-08-03 | 2016-08-03 | The comprehensive utilization process of viscose fiber acid waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106145496B (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106745517A (en) * | 2016-11-30 | 2017-05-31 | 宜宾丝丽雅股份有限公司 | Treatment process of short fiber acidic wastewater |
| CN106957087A (en) * | 2017-03-06 | 2017-07-18 | 佛山市亿达胶粘制品有限公司 | A kind of adhesive produces the processing method of waste material |
| CN107500464A (en) * | 2017-09-27 | 2017-12-22 | 唐山三友集团兴达化纤有限公司 | A kind of method for handling viscose rayon factory acid waste water |
| CN107686204A (en) * | 2017-09-27 | 2018-02-13 | 唐山三友集团兴达化纤有限公司 | A kind of method of heat integration during processing viscose rayon acid waste water |
| CN107740207A (en) * | 2017-09-27 | 2018-02-27 | 唐山三友集团兴达化纤有限公司 | A kind of preprocess method of viscose rayon acid waste water |
| CN107954527A (en) * | 2017-11-24 | 2018-04-24 | 安徽皖维高新材料股份有限公司 | A kind of recovery method of the waste water containing saltcake |
| CN109293112A (en) * | 2018-10-17 | 2019-02-01 | 新疆中泰创新技术研究院有限责任公司 | A kind of processing method of viscose rayon acid waste water resource utilization |
| CN109574274A (en) * | 2018-12-27 | 2019-04-05 | 马杰 | A kind of recoverying and utilizing method of cellulose fibre production high temperature acid zinc wastewater |
| CN109650630A (en) * | 2019-01-29 | 2019-04-19 | 山东恒发环保科技有限公司 | A kind of acid waste water recovery process |
| CN110117044A (en) * | 2019-06-24 | 2019-08-13 | 厦门市天泉鑫膜科技股份有限公司 | A kind of cooling tower recirculated cooling water desalination process and equipment |
| CN111362444A (en) * | 2020-04-24 | 2020-07-03 | 莱特莱德（北京）环境技术股份有限公司 | Viscose fiber acid wastewater sulfuric acid recycling system and recycling method |
| CN111484569A (en) * | 2020-05-29 | 2020-08-04 | 新疆中泰纺织集团有限公司 | Zero-emission treatment method of viscose squeezed alkali liquor |
| CN112390281A (en) * | 2020-10-30 | 2021-02-23 | 冉国庆 | Method for recovering zinc oxide from Cellulose Carbamate (CC) fiber coagulation bath and application |
| CN112390440A (en) * | 2020-10-16 | 2021-02-23 | 唐山三友远达纤维有限公司 | Method for recycling acid water between spinning and practicing cars |
| WO2021215442A1 (en) * | 2020-04-24 | 2021-10-28 | ニプロ株式会社 | Pretreatment method and pretreatment system for drainage |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010059810A2 (en) * | 2008-11-21 | 2010-05-27 | Earthrenew, Inc. | Process and system for desalinating water |
| CN102659277A (en) * | 2012-05-10 | 2012-09-12 | 杭州蓝然环境技术有限公司 | Ammonium fluoride wastewater treatment technique |
| CN102774994A (en) * | 2011-05-13 | 2012-11-14 | 周健 | Combined new process for recovery of salt-containing wastewater through membrane separation |
| CN203392971U (en) * | 2013-07-24 | 2014-01-15 | 宜宾海翔化工有限责任公司 | New recovery system for recovering acid and alkali from viscose sodium sulfate waste liquid through bipolar membrane electrodialysis process |
| CN103508602A (en) * | 2013-07-23 | 2014-01-15 | 南京九思高科技有限公司 | Membrane and evaporative crystallization integrated high-salinity industrial wastewater zero-discharge process |
| CN103771642A (en) * | 2014-01-09 | 2014-05-07 | 杭州蓝然环境技术有限公司 | Recycling method for saponified ammonium-sulfate wastewater in rare soil |
-
2016
- 2016-08-03 CN CN201610629933.6A patent/CN106145496B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010059810A2 (en) * | 2008-11-21 | 2010-05-27 | Earthrenew, Inc. | Process and system for desalinating water |
| CN102774994A (en) * | 2011-05-13 | 2012-11-14 | 周健 | Combined new process for recovery of salt-containing wastewater through membrane separation |
| CN102659277A (en) * | 2012-05-10 | 2012-09-12 | 杭州蓝然环境技术有限公司 | Ammonium fluoride wastewater treatment technique |
| CN103508602A (en) * | 2013-07-23 | 2014-01-15 | 南京九思高科技有限公司 | Membrane and evaporative crystallization integrated high-salinity industrial wastewater zero-discharge process |
| CN203392971U (en) * | 2013-07-24 | 2014-01-15 | 宜宾海翔化工有限责任公司 | New recovery system for recovering acid and alkali from viscose sodium sulfate waste liquid through bipolar membrane electrodialysis process |
| CN103771642A (en) * | 2014-01-09 | 2014-05-07 | 杭州蓝然环境技术有限公司 | Recycling method for saponified ammonium-sulfate wastewater in rare soil |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106745517A (en) * | 2016-11-30 | 2017-05-31 | 宜宾丝丽雅股份有限公司 | Treatment process of short fiber acidic wastewater |
| CN106957087A (en) * | 2017-03-06 | 2017-07-18 | 佛山市亿达胶粘制品有限公司 | A kind of adhesive produces the processing method of waste material |
| CN107500464B (en) * | 2017-09-27 | 2021-05-14 | 唐山三友集团兴达化纤有限公司 | Method for treating acid wastewater of viscose fiber factory |
| CN107500464A (en) * | 2017-09-27 | 2017-12-22 | 唐山三友集团兴达化纤有限公司 | A kind of method for handling viscose rayon factory acid waste water |
| CN107686204A (en) * | 2017-09-27 | 2018-02-13 | 唐山三友集团兴达化纤有限公司 | A kind of method of heat integration during processing viscose rayon acid waste water |
| CN107740207A (en) * | 2017-09-27 | 2018-02-27 | 唐山三友集团兴达化纤有限公司 | A kind of preprocess method of viscose rayon acid waste water |
| CN107954527A (en) * | 2017-11-24 | 2018-04-24 | 安徽皖维高新材料股份有限公司 | A kind of recovery method of the waste water containing saltcake |
| CN109293112B (en) * | 2018-10-17 | 2021-07-16 | 新疆中泰纺织集团有限公司 | Treatment method for recycling viscose fiber acid wastewater |
| CN109293112A (en) * | 2018-10-17 | 2019-02-01 | 新疆中泰创新技术研究院有限责任公司 | A kind of processing method of viscose rayon acid waste water resource utilization |
| CN109574274A (en) * | 2018-12-27 | 2019-04-05 | 马杰 | A kind of recoverying and utilizing method of cellulose fibre production high temperature acid zinc wastewater |
| CN109650630A (en) * | 2019-01-29 | 2019-04-19 | 山东恒发环保科技有限公司 | A kind of acid waste water recovery process |
| CN110117044A (en) * | 2019-06-24 | 2019-08-13 | 厦门市天泉鑫膜科技股份有限公司 | A kind of cooling tower recirculated cooling water desalination process and equipment |
| CN111362444A (en) * | 2020-04-24 | 2020-07-03 | 莱特莱德（北京）环境技术股份有限公司 | Viscose fiber acid wastewater sulfuric acid recycling system and recycling method |
| WO2021215442A1 (en) * | 2020-04-24 | 2021-10-28 | ニプロ株式会社 | Pretreatment method and pretreatment system for drainage |
| JP2021171704A (en) * | 2020-04-24 | 2021-11-01 | ニプロ株式会社 | Waste fluid pretreatment method and pretreatment system |
| JP7501075B2 (en) | 2020-04-24 | 2024-06-18 | ニプロ株式会社 | Method and system for pre-treating wastewater |
| CN111484569A (en) * | 2020-05-29 | 2020-08-04 | 新疆中泰纺织集团有限公司 | Zero-emission treatment method of viscose squeezed alkali liquor |
| CN112390440A (en) * | 2020-10-16 | 2021-02-23 | 唐山三友远达纤维有限公司 | Method for recycling acid water between spinning and practicing cars |
| CN112390440B (en) * | 2020-10-16 | 2023-05-23 | 唐山三友远达纤维有限公司 | Method for recycling acidic water in spinning workshop |
| CN112390281A (en) * | 2020-10-30 | 2021-02-23 | 冉国庆 | Method for recovering zinc oxide from Cellulose Carbamate (CC) fiber coagulation bath and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106145496B (en) | 2019-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106145496B (en) | The comprehensive utilization process of viscose fiber acid waste water | |
| CN105692989B (en) | The comprehensive utilization process of viscose fiber acid waste water | |
| CN108249646A (en) | Can resource recycling power plant desulfurization wastewater Zero-discharge treating process and device | |
| CN106946395A (en) | A kind of method and device of desulfurization wastewater sub-prime crystallization treatment | |
| CN105000737B (en) | A kind of Industrial sewage treatment system and sewage water treatment method | |
| CN115180688B (en) | Method for softening lithium brine using nanofiltration | |
| CN108975586A (en) | Fluorine-containing in tantalum and niobium hydrometallurgy, nitrogen-containing wastewater recovery and treatment method | |
| CN111362283B (en) | Viscose wastewater recycling treatment method | |
| CN104291511A (en) | Method and device for zero-emission treatment of high-hardness waste water containing sulfate | |
| JP2014512952A (en) | Osmotic separation system and method | |
| CN102774994B (en) | Combination membrane Separation and Recovery brine waste technique | |
| CN106966535A (en) | Strong brine zero-emission film is concentrated and sub-prime crystallization processes and equipment | |
| CN109293112B (en) | Treatment method for recycling viscose fiber acid wastewater | |
| CN108658345A (en) | A kind of method and system of high-salt wastewater purified salt | |
| CN108101290A (en) | A kind of electroplating waste-water reutilizing and the processing system and processing method of zero-emission | |
| CN104058525A (en) | Method for recovering and treating production wastewater containing high ammonia nitrogen and nitrate nitrogen | |
| CN101602560B (en) | Method and device for concentrating and reclaiming low-concentration industrial waste acid water | |
| CN205473148U (en) | Zero release processing system of power plant's desulfurization waste water | |
| CN207862094U (en) | A kind of electroplating waste-water reutilizing and the processing system of zero-emission | |
| CN110451529A (en) | A kind of method of purification of sodium chloride for injection | |
| CN214781303U (en) | Bromine salt recovery system | |
| CN106430771B (en) | salt separation system and salt separation method | |
| CN212334897U (en) | Freezing salt separating system | |
| CN214570785U (en) | System for extracting magnesium sulfate and sodium chloride from desulfurization wastewater | |
| CN114409160A (en) | Treatment method for preparing high-purity basic magnesium chloride whisker by removing ions from desulfurized slurry and recycling concentrated solution |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 201210, Shanghai, China (Shanghai) free trade zone, Zhangjiang Road, No. 665, 3, Pudong New Area Applicant after: SHANGHAI KAIXIN ISOLATION TECHNOLOGY CO., LTD. Address before: 201206 room 5-16, building 1999, Zhang Heng Road, Pudong New Area, China (Shanghai) free trade zone, Shanghai, China, 7 Applicant before: SHANGHAI KAIXIN ISOLATION TECHNOLOGY CO., LTD. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |