CN107158949A - A kind of ultrafiltration water purification treatment technology of high-recovery - Google Patents
A kind of ultrafiltration water purification treatment technology of high-recovery Download PDFInfo
- Publication number
- CN107158949A CN107158949A CN201710555591.2A CN201710555591A CN107158949A CN 107158949 A CN107158949 A CN 107158949A CN 201710555591 A CN201710555591 A CN 201710555591A CN 107158949 A CN107158949 A CN 107158949A
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- Prior art keywords
- water
- ultrafiltration
- membrane
- pressure type
- water purification
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/20—Accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/22—Controlling or regulating
-
- 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
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- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention provides a kind of handling process of the ultrafiltration water purification of high-recovery.The processing step is as follows：Raw water enters pressure type ultrafiltration membrance filter after coagulating sedimentation, sand filtration pretreatment, obtains production water and dense draining, produces water direct reuse or enters follow-up reverse osmosis membrane；Dense draining and backwashing water enter immersion ultrafiltration module and carry out concentration, and production water is incorporated to pressure type milipore filter water producing pipe.This technique can further be reclaimed to the concentrated water and flushing water of pressure type ultrafiltration system, substantially increase the rate of recovery of production water.
Description
Technical field
The present invention relates to water purification feedwater field, more particularly to the high-recovery that a kind of embrane method and traditional water-purifying process are combined
Ultrafiltration water purification treatment technology.
Background technology
With the development and the raising of living standards of the people of national economy, existing water supply industry is faced with unprecedented
Technological challenge, on the one hand, Drinking Water in China source is mostly heavily contaminated, and will be further within one period from now on
The trend of deterioration；On the other hand, the water standard of Drinking Water is greatly improved.What on July 1st, 2007 formally implemented《Life
Sanitary standard for drinking water》（GB5749--2006）Water quality index project is brought up to 106 from previous 35, and to drinking-water
In pollutant limit value made more strict regulation.At the same time, the waterworks of China 99% is still using coagulation-heavy
The traditional handicraft of shallow lake-filtering-sterilization, can't bear the heavy load under the new situation, it is difficult to solve many quality problems faced：Cause
Unstable etc. the water quality safety of sick microorganism problem, algae and Algae toxins problem, turbidity, DBPs problem, effluent quality
Challenge, in the urgent need to carrying out technology upgrading transformation to traditional waterworks.
Hyperfiltration technique is the new technology risen in recent years in terms of municipal water supply, and ultrafiltration can be almost removed in water body completely
Bacterium, virus, pathogenic protozoa, compared with traditional handicraft, milipore filter be applied to water treatment have it is following prominent
Advantage：1）Milipore filter stable effluent quality, delivery turbidity is hardly influenceed by raw water quality, and delivery turbidity is usually less than
0.1NTU；2）Milipore filter water outlet microbial safety is high, ultrafiltration can retain completely giardia lamblia in water body, Cryptosporidium, bacterium,
Virus etc.；3）DBPs growing amount is low；4）Ultrafiltration Water Works scaleable, it is only necessary to increase and decrease hyperfiltration membrane assembly,
Suitable for the purified treatment of any scale output, and reorganization and expansion is easy；5）Floor space is small, short construction period.Membranous system
Standardization, modularization with it is relatively intensive, shorten the construction period of traditional water factory, floor space is greatly reduced.
The overall recovery of film filtering system refers to the total net ratio between aquifer yield and total inflow of system.It is complete with one
Exemplified by filtering-recoil cycle, the whereabouts of film production water mainly has two aspects in the engineering：A part is temporary transient as back-flushing
It is stored in backwash water tank；Another part is directly entered clear water reserviors.The processing water being stored in backwash water tank is closing on this
The terminal stage in cycle can be reversely come back in membrane cisterna with the progress of recoil through film, the shape that final system passes through blowdown
Formula discharges the concentrate of certain volume.Water purification overall recovery is 90%~95% in immersion ultrafiltration system, and equipment is to water resource
Waste be only limitted to the discharge to membrane cisterna concentrate.Compared with conventional water treatment process, the system not only increases cleaning water,
Water resource is more saved, this can yet be regarded as a new approaches for relieving for increasingly serious global water resources crisis.
The content of the invention
The purpose of the present invention is to improve the rate of recovery of pressure type ultrafiltration water-purifying process, further using immersion ultrafiltration system
The dense draining for concentrating pressure type ultrafiltration system uses cooperatively the net of high-recovery there is provided a kind of pressure type ultrafiltration and immersion ultrafiltration
Hydraulic art.
Technical scheme：
The present invention provides a kind of handling process of the ultrafiltration water purification of high-recovery.Processing step is as follows：1. using for water treatment plant is pressed
Power formula ultrafiltration membrance filter, obtains production water and concentrated water, produces water direct reuse or enters follow-up reverse osmosis membrane 2. concentrated water and backwashing water
Concentration is carried out into immersion ultrafiltration module, production water is incorporated to pressure type milipore filter water producing pipe.This method can be super to pressure type
The concentrated water and flushing water of filter system are further reclaimed, and substantially increase the rate of recovery of production water, reduce the dense discharge capacity of system.
According to an embodiment of the invention, the dense draining of pressure type ultrafiltration system and flushing water enter immersion ultrafiltration
The membrane cisterna of system, immersion ultrafiltration system carries out further separating and filtering to it.
According to an embodiment of the invention, immersion ultrafiltration system filtering production water is directly incorporated into the production of pressure type ultrafiltration
Waterpipe.
Beneficial effect：
The dense row of pressure type ultrafiltration system and flushing water are discharged into follow-up immersion ultrafiltration system in the present invention, hence it is evident that improve super
Filter system produces the rate of recovery of water, while saving the cistern capital cost of dense row and flushing water, the ultrafiltration of this high-recovery
Water purification treatment technology be particularly suitable for use in drinking water sources extremely lack area and city.
Brief description of the drawings
Fig. 1 is the handling process schematic diagram of the ultrafiltration water purification of high-recovery of the present invention.
Embodiment
The present invention is described in further detail below by embodiment combination accompanying drawing.But those skilled in the art
It will be understood that, the following example is merely to illustrate the present invention, and should not be taken as limiting the scope of the invention.It is unreceipted in embodiment
Particular technique or condition person, agents useful for same or the unreceipted production firm person of instrument, are that can be produced by the routine of acquisition purchased in market
Product.
Approximate language used herein can be used for modifying any quantity statement in entire disclosure and claims, and it can
Permit being changed under conditions of the basic function for not causing its related changes.Therefore, repaiied by term such as " about "
The value of decorations is not limited to specified exact value.In at least some cases, approximate language can be with the instrument for measuring the value
Precision it is corresponding.Unless indicated otherwise in context or sentence, otherwise range limit can be combined and/or exchange, and
And this scope is confirmed as and including all subranges contained herein.Except in operation embodiment or elsewhere
In indicate outside, the numeral of the amounts of all expression compositions used in specification and claims, reaction condition etc. or
Expression shall be construed as the modification by word " about " in all cases.
Embodiment 1
Raw Drinking Water passes through coagulating basin and sedimentation basin, and supernatant enters pressure type ultrafiltration membrane system by delivery pump, system
Cross-flow rate is 5%, and operating pressure is 8% or so dense draining of generation and backwashing water in 0.08Mpa, running, this part water warp
Piping gravity flow enters the membrane cisterna of submerged ultrafiltration, and the rate of recovery of submerged ultrafiltration system is 90%, whole film system system
The rate of recovery is 99.2% system Water Sproading rate, and the rate of recovery than single pressure type or immersion ultrafiltration system is high.
Claims (6)
1. the handling process of the ultrafiltration water purification of a kind of high-recovery, it is characterised in that comprise the following steps：Using pressure type ultrafiltration
Concentrated water and production water are obtained during processing water purification, water direct reuse is produced or enters follow-up counter-infiltration workshop section, concentrated water enters immersion ultrafiltration
The membrane cisterna of component, the production water of the membrane cisterna is incorporated to the pipeline of the production water of pressure type ultrafiltration system.
2. the handling process of the ultrafiltration water purification of high-recovery according to claim 1, it is characterised in that：In pressure type ultrafiltration
After membrane filtration, concentrated water and backwash water continue concentration into the membrane cisterna of immersion ultrafiltration.
3. the handling process of the ultrafiltration water purification of high-recovery according to claim 1, it is characterised in that：Pressure type milipore filter
Component is the hollow-fibre membrane hyperfiltration membrane assembly of internal pressure or external pressure.
4. the handling process of the ultrafiltration water purification of high-recovery according to claim 1, it is characterised in that：Pressure type milipore filter
The system transmembrane pressure of component is 0.01 ~ 0.15MPa.
5. the handling process of the ultrafiltration water purification of high-recovery according to claim 1, it is characterised in that：Described immersion
The membrane structure of milipore filter is doughnut or Flat Membrane, and material is Kynoar, polysulfones, polyether sulfone, and preferably immersion is hollow
Cellulosic ultrafiltration membrane module.
6. the handling process of the ultrafiltration water purification of high-recovery according to claim 1, it is characterised in that：The hollow fibre of immersion
Tie up transmembrane pressure≤0.08MPa of membrane module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710555591.2A CN107158949A (en) | 2017-07-10 | 2017-07-10 | A kind of ultrafiltration water purification treatment technology of high-recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710555591.2A CN107158949A (en) | 2017-07-10 | 2017-07-10 | A kind of ultrafiltration water purification treatment technology of high-recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107158949A true CN107158949A (en) | 2017-09-15 |
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| CN201710555591.2A Pending CN107158949A (en) | 2017-07-10 | 2017-07-10 | A kind of ultrafiltration water purification treatment technology of high-recovery |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201098606Y (en) * | 2007-10-09 | 2008-08-13 | 湖州晶泉水处理设备有限公司 | Water-saving ultra-filtration device |
| CN101454066A (en) * | 2006-05-31 | 2009-06-10 | 纳尔科公司 | Method of improving performance of ultrafiltration or microfiltration membrane process in backwash water treatment |
| KR101035899B1 (en) * | 2010-11-17 | 2011-05-23 | 지에스건설 주식회사 | High recovery and low fouling type apparatus for reusing treated wastewater and method thereof |
| CN102583651A (en) * | 2012-03-06 | 2012-07-18 | 北京科泰兴达高新技术有限公司 | Water-saving ultra/microfiltration purification device for water |
| CN103086477A (en) * | 2013-02-26 | 2013-05-08 | 浙江开创环保科技有限公司 | Beverage waste water membrane-method recycling method and device |
| CN103626259A (en) * | 2012-08-22 | 2014-03-12 | 东丽先端材料研究开发（中国）有限公司 | Immersed type membrane pool and operation method thereof |
-
2017
- 2017-07-10 CN CN201710555591.2A patent/CN107158949A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101454066A (en) * | 2006-05-31 | 2009-06-10 | 纳尔科公司 | Method of improving performance of ultrafiltration or microfiltration membrane process in backwash water treatment |
| CN201098606Y (en) * | 2007-10-09 | 2008-08-13 | 湖州晶泉水处理设备有限公司 | Water-saving ultra-filtration device |
| KR101035899B1 (en) * | 2010-11-17 | 2011-05-23 | 지에스건설 주식회사 | High recovery and low fouling type apparatus for reusing treated wastewater and method thereof |
| CN102583651A (en) * | 2012-03-06 | 2012-07-18 | 北京科泰兴达高新技术有限公司 | Water-saving ultra/microfiltration purification device for water |
| CN103626259A (en) * | 2012-08-22 | 2014-03-12 | 东丽先端材料研究开发（中国）有限公司 | Immersed type membrane pool and operation method thereof |
| CN103086477A (en) * | 2013-02-26 | 2013-05-08 | 浙江开创环保科技有限公司 | Beverage waste water membrane-method recycling method and device |
Non-Patent Citations (1)
| Title |
|---|
| 陈观文等: "《膜技术新进展与工程应用》", 31 August 2013, 国防工业出版社 * |
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Application publication date: 20170915 |