CN104529021B - A kind of reverse osmosis concentrated water that reclaims produces the system of demineralized water - Google Patents
A kind of reverse osmosis concentrated water that reclaims produces the system of demineralized water Download PDFInfo
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- CN104529021B CN104529021B CN201510005838.4A CN201510005838A CN104529021B CN 104529021 B CN104529021 B CN 104529021B CN 201510005838 A CN201510005838 A CN 201510005838A CN 104529021 B CN104529021 B CN 104529021B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 165
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 84
- 238000001728 nano-filtration Methods 0.000 claims abstract description 36
- 238000005342 ion exchange Methods 0.000 claims abstract description 23
- 238000005370 electroosmosis Methods 0.000 claims abstract description 18
- 238000000909 electrodialysis Methods 0.000 claims abstract description 17
- 239000003814 drug Substances 0.000 claims abstract description 8
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 23
- 239000013505 freshwater Substances 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000002242 deionisation method Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 2
- 238000010612 desalination reaction Methods 0.000 description 8
- 238000011033 desalting Methods 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000026676 system process Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005685 electric field effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
Abstract
The invention discloses a kind of reverse osmosis concentrated water that reclaims and produce the system of demineralized water, belong to water-treatment technology field.It includes reverse osmosis concentrated water tank, booster pump, accurate filter, electrodialysis water tank inlet, pole-reversing electroosmosis device, one-level water tank inlet, medicine system, one-level high-pressure pump, one-level cartridge filter, first-stage reverse osmosis device or nanofiltration device, two grades of water tank inlets, two grades of high-pressure pumps, two grades of cartridge filters, second level reverse osmosis apparatus or nanofiltration device, EDI or ion exchange mixed bed water tank inlet, EDI device or ion exchange mixed bed device, demineralized water water tank.This system structure Water Sproading utilization rate simple, easy and simple to handle, dense is high, operating cost is low, length in service life, the feature such as good in economic efficiency.Can be supporting with the water treatment facilities such as desalinization, boiler feed water, be a kind of high-efficient simple, can life-time service, there is the reverse osmosis concentrated water recycling system of higher reliability and novelty.
Description
Technical field
The present invention relates to water treatment field, produce the system of demineralized water particularly to a kind of reverse osmosis concentrated water that reclaims.
Background technology
Along with development and people's attention to water treatment field of science and technology, the related process of water treatment field and equipment all obtained significant progress in the last few years.Reverse osmosis membrane separation technology is the main method that a kind of water processes, and has economical and efficient, simple to operate, it is easy to the advantage that other conventional art such as automatization is incomparable, is widely used in desalinization, waste water process and boiler feed water field.
The response rate of reverse osmosis unit is between 45 % ~ 80 % at present, therefore the process of reverse osmosis membrane separation can produce a large amount of dense water, directly discharges if dense water will be remained, and is on the one hand the huge waste to water resource, the salinity of the denseest water is higher, can bring bigger harm to environment.If reverse osmosis concentrated water can be recycled produce the demineralized water with high added value, the energy can not only be saved, protect environment, have the biggest economic benefit and wide market prospect simultaneously.
Process for reverse osmosis concentrated water, now many employings individually increase a set of reverse osmosis unit and process, reverse osmosis unit has high requirement to the water quality of water inlet, the salinity of dense water is higher, hardness is relatively big, and required operating pressure is the highest, if being directly entered reverse osmosis unit, then the easy fouling in reverse osmosis membrane surface, needs frequent clean；When utilizing traditional distillation technique to process dense water, needing to consume a large amount of steam, equipment is complicated, relatively costly.Electroosmose process is a kind of membrane separation technique utilizing electric energy to carry out, it is under DC electric field effect, with potential difference as motive force, utilize anions and canons exchange membrane to the selective penetrated property of electrolyte ion in solution, electrolyte being separated from solution, thus realizes the desalination of solution, the refined or purpose of purification, present in reverse osmosis concentrated water, pole-reversing electroosmosis device also will not be impacted by flocculant and antisludging agent, therefore, it is particularly suitable for removing the ion in reverse osmosis concentrated water.
Summary of the invention
For problems and shortcomings present in existing reverse osmosis concentrated Water circulation and processing procedure, it is low that the present invention solves reverse osmosis concentrated water recovery utilization rate, directly discharges the pollution caused and waste problem.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of reverse osmosis concentrated water that reclaims produces the system of demineralized water, including reverse osmosis concentrated water tank, booster pump, accurate filter, electrodialysis water tank inlet, pole-reversing electroosmosis device, one-level water tank inlet, medicine system, one-level high-pressure pump, one-level cartridge filter, first-stage reverse osmosis device or nanofiltration device, two grades of water tank inlets, two grades of high-pressure pumps, two grades of cartridge filters, second level reverse osmosis apparatus or nanofiltration device, EDI or ion exchange mixed bed water tank inlet, EDI device or ion exchange mixed bed device, demineralized water water tank.
Further, described reverse osmosis concentrated water tank passes sequentially through booster pump, accurate filter, electrodialysis water tank inlet are connected with pole-reversing electroosmosis device；Pole-reversing electroosmosis device freshwater room produces water and passes sequentially through one-level water tank inlet, medicine system, one-level high-pressure pump and one-level cartridge filter, is connected with first-stage reverse osmosis device or nanofiltration device water inlet；First-stage reverse osmosis device or the nanofiltration device fresh water production mouth of a river pass sequentially through two grades of water tank inlets, two grades of high-pressure pumps, two grades of cartridge filters, are connected with second level reverse osmosis apparatus or nanofiltration device；Second level reverse osmosis apparatus or the nanofiltration device fresh water production mouth of a river exchange with EDI device or ion by EDI or ion exchange mixed bed water tank inlet that mixed bed device is connected, EDI device or ion exchange mixed bed device outlet and be connected with demineralized water water tank.
Further, first-stage reverse osmosis device or nanofiltration device dense water outlet are connected with electrodialysis water tank inlet.
Further, second level reverse osmosis apparatus or nanofiltration device dense water outlet are connected with one-level water tank inlet.
Further, EDI device or ion exchange mixed bed device dense water outlet and two grades of water tank inlets are connected.
Further, the described reverse osmosis concentrated water reverse osmosis concentrated water tank of entrance, through booster pump and accurate filter, enters electrodialysis water tank inlet, is then passed through the process of pole-reversing electroosmosis device and removes deionization, arranges outside the dense water of pole-reversing electroosmosis device；Pole-reversing electroosmosis device fresh water, further across one-level water tank inlet, medicine system, one-level high-pressure pump and one-level cartridge filter, enters first-stage reverse osmosis device or nanofiltration device reduces ion concentration further；First-stage reverse osmosis device or nanofiltration device are produced water and are processed through two grades of water tank inlets, two grades of high-pressure pumps and two grades of cartridge filters, entrance second level reverse osmosis apparatus or nanofiltration device；Second level reverse osmosis apparatus or nanofiltration device are produced water and are exchanged mixed bed water tank inlet through EDI or ion, enter EDI device or ion exchange mixed bed device obtains demineralized water, eventually enter into demineralized water water tank；During first-stage reverse osmosis device or the dense water of nanofiltration device be again introduced into electrodialysis water tank inlet circular treatment, second level reverse osmosis apparatus or the dense water of nanofiltration device are again introduced into one-level water tank inlet circular treatment,, EDI device or the ion exchange dense water of mixed bed device are again introduced into two grades of water tank inlets.
The present invention utilizes pole-reversing electroosmosis device, reverse osmosis unit or nanofiltration device and EDI device or ion exchange mixed bed device to produce demineralized water, and dense water use efficiency is high, and output demineralized water has higher added value.Have simple in construction, Water Sproading utilization rate easy and simple to handle, dense is high, operating cost is low, length in service life, the feature such as good in economic efficiency.Can be supporting with the water treatment facilities such as desalinization, boiler feed water, be a kind of high-efficient simple, can life-time service, there is the reverse osmosis concentrated water recycling system of higher reliability and novelty.
Accompanying drawing explanation
A kind of reverse osmosis concentrated water that reclaims of Fig. 1 present invention produces the system process figure of demineralized water.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is further described.
nullFig. 1 is that a kind of reverse osmosis concentrated water that reclaims produces the system process figure of demineralized water，Reverse osmosis concentrated water is through electrodialysis accurate filter，Effect is to retain the granule in reverse osmosis concentrated water and other solid impurities，Meet the requirement of pole-reversing electroosmosis plant running，Prevent fine particle from entering desalination system，Water outlet enters pole-reversing electroosmosis device and carries out desalting processing，Require that effluent quality reaches feed water by reverse osmosis water quality requirement，Arrange outside the dense water of electrodialysis，Electric osmose division water enters one-level water tank inlet，Antibacterial can be added through medicine system、Antisludging agent is to ensure reverse osmosis unit or the operating characteristics of nanofiltration device，Electric osmose division water enters first-stage reverse osmosis device after the pressurization of one-level high-pressure pump and one-level cartridge filter trapped particles and solid impurity or nanofiltration device carries out desalting processing，One-level is produced water and is flowed into two grades of water tank inlets，One-level concentrate recirculation repeats, to electrodialysis water tank inlet, the process that electrodialysis desalination processes，Rear stage produce water and after the pressurization of two grades of high-pressure pumps and two grades of cartridge filter trapped particles and solid impurity, enter second level reverse osmosis apparatus or nanofiltration device carries out desalting processing，Two grades are produced water and flow into EDI or ion exchange mixed bed water tank inlet，Two grades of concentrate recirculations repeat first-stage reverse osmosis or the process of nanofiltration desalination process to one-level water tank inlet，Two grades of product water entrance EDI devices or ion exchange mixed bed device carry out advanced desalination process afterwards，EDI or ion exchange mixed bed produce water i.e. demineralized water，Flow into demineralized water water tank，EDI or ion exchange mixed bed concentrate recirculation to two grades water tank inlet repeat two-pass reverse osmosis or the process of nanofiltration desalination process，So in system work process，In addition to electrodialytic process discharges the dense water of a small amount of electrodialysis，Reverse osmosis concentrated water recycles the most in systems，Prepare the demineralized water of high added value.
Embodiment 1
nullThe reverse osmosis concentrated water of boiler feed water generation is prepared as object of study using certain steam power plant，Carry out reclaiming reverse osmosis concentrated water according to the technique shown in Fig. 1 and prepare the process of demineralized water，Use the technology path of pole-reversing electroosmosis two-pass reverse osmosis EDI，Reverse osmosis concentrated electrical conductivity of water is about 3700 μ S/cm，After the desalting processing of the pole-reversing electroosmosis of falling pole device，Electric osmose division water conductivity is down to about 1000 μ S/cm，Meet feed water by reverse osmosis water quality requirement，Electric osmose division water is after the desalting processing of second level reverse osmosis apparatus，Electrical conductivity reduces to about 5 μ S/cm，Reverse osmosis produced water is after the advanced desalination of EDI device processes，The desalination electrical conductivity of water of output reduces to about 0.2 μ S/cm，Meet the requirement of boiler feed water，Use this technique，Boiler supply water is solved for enterprise，The response rate of COMPREHENSIVE CALCULATING reverse osmosis concentrated water is higher than 90%，Reach the purpose efficiently utilized of waste water，Output has the demineralized water of high added value，Achieve the environmental protection of waste water、Resource.
Claims (5)
1. one kind is reclaimed reverse osmosis concentrated water and produces the system of demineralized water, it is characterised in that include reverse osmosis concentrated water tank, booster pump, essence
Close filter, electrodialysis water tank inlet, pole-reversing electroosmosis device, one-level water tank inlet, medicine system, one-level high-pressure pump, one
Level cartridge filter, first-stage reverse osmosis device or nanofiltration device, two grades of water tank inlets, two grades of high-pressure pumps, two grades of cartridge filters,
Second level reverse osmosis apparatus or nanofiltration device, EDI or ion exchange mixed bed water tank inlet, EDI device or ion exchange mixed bed device,
Demineralized water water tank；Described reverse osmosis concentrated water tank passes sequentially through booster pump, accurate filter, electrodialysis water tank inlet and extremely electricity
Electrodialysis apparatus is connected；Pole-reversing electroosmosis device freshwater room produces the mouth of a river and passes sequentially through one-level water tank inlet, medicine system, one-level high pressure
Pump and one-level cartridge filter, be connected with first-stage reverse osmosis device or nanofiltration device water inlet；First-stage reverse osmosis device or nanofiltration dress
Put the fresh water production mouth of a river and pass sequentially through two grades of water tank inlets, two grades of high-pressure pumps, two grades of cartridge filters, with second level reverse osmosis apparatus or
Nanofiltration device is connected；Second level reverse osmosis apparatus or the nanofiltration device fresh water production mouth of a river by EDI or ion exchange mixed bed water tank inlet with
EDI device or ion exchange mixed bed device be connected, EDI device or ion exchange mixed bed device outlet be connected with demineralized water water tank.
Recovery reverse osmosis concentrated water the most according to claim 1 produces the system of demineralized water, it is characterised in that first-stage reverse osmosis device
Or nanofiltration device dense water outlet is connected with electrodialysis water tank inlet.
Recovery reverse osmosis concentrated water the most according to claim 2 produces the system of demineralized water, it is characterised in that second level reverse osmosis apparatus
Or nanofiltration device dense water outlet is connected with one-level water tank inlet.
Recovery reverse osmosis concentrated water the most according to claim 3 produces the system of demineralized water, it is characterised in that EDI device or ion
Exchange mixed bed device dense water outlet and two grades of water tank inlets are connected.
Recovery reverse osmosis concentrated water the most according to claim 4 produces the system of demineralized water, it is characterised in that described reverse osmosis concentrated water
Enter reverse osmosis concentrated water tank through booster pump and accurate filter, enter electrodialysis water tank inlet, be then passed through pole-reversing electroosmosis
Device processes and removes deionization, arranges outside the dense water of pole-reversing electroosmosis device；Pole-reversing electroosmosis device fresh water is intake water further across one-level
Case, medicine system, one-level high-pressure pump and one-level cartridge filter, enter first-stage reverse osmosis device or nanofiltration device reduces further
Ion concentration；First-stage reverse osmosis device or nanofiltration device are produced water and are filtered through two grades of water tank inlets, two grades of high-pressure pumps and two grades of security personnel
Device, enters second level reverse osmosis apparatus or nanofiltration device processes；Second level reverse osmosis apparatus or nanofiltration device produce water through EDI or ion
Exchange mixed bed water tank inlet, enters EDI device or ion exchange mixed bed device obtains demineralized water, eventually enters into demineralized water water tank；
During first-stage reverse osmosis device or the dense water of nanofiltration device be again introduced into electrodialysis water tank inlet circular treatment, second level reverse osmosis apparatus
Or the dense water of nanofiltration device is again introduced into one-level water tank inlet circular treatment, EDI device or the ion exchange dense water of mixed bed device and again enters
Enter two grades of water tank inlets.
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| CN201510005838.4A CN104529021B (en) | 2015-01-07 | 2015-01-07 | A kind of reverse osmosis concentrated water that reclaims produces the system of demineralized water |
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| CN201510005838.4A CN104529021B (en) | 2015-01-07 | 2015-01-07 | A kind of reverse osmosis concentrated water that reclaims produces the system of demineralized water |
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| CN104529021B true CN104529021B (en) | 2016-08-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105540976A (en) * | 2016-01-28 | 2016-05-04 | 新疆环境工程技术有限责任公司 | Coal chemical strong brine zero emission and salt screening technology |
| CN109179812A (en) * | 2018-10-29 | 2019-01-11 | 上海明坤水处理设备有限公司 | Modularization movable reverse osmosis concentrated water processing equipment and its processing method |
| CN109761410A (en) * | 2019-03-28 | 2019-05-17 | 华润电力（沧州运东）有限公司 | The recovery and treatment method and system of power plant's sewerage |
| CN112939150A (en) * | 2020-09-11 | 2021-06-11 | 南京中电环保水务有限公司 | Full-automatic high-recovery-rate salt separation integrated system and method |
| CN112456696A (en) * | 2020-12-03 | 2021-03-09 | 上海东石塘再生能源有限公司 | Demineralized water production system and production method thereof |
| CN112723576A (en) * | 2021-01-08 | 2021-04-30 | 长庆工程设计有限公司 | Device and method for preparing demineralized water for internal circulation of closed circulating water system |
| CN114605011A (en) * | 2022-03-31 | 2022-06-10 | 中国能源建设集团华中电力试验研究院有限公司 | Wastewater recovery treatment system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| PL1809408T3 (en) * | 2004-09-13 | 2012-08-31 | Univ South Carolina | Water desalination process and apparatus |
| CN203602416U (en) * | 2013-10-14 | 2014-05-21 | 天津山联华科技发展有限公司 | Reverse osmosis concentrated water cyclic utilization system |
| CN104016530B (en) * | 2014-06-05 | 2016-08-24 | 中国科学院过程工程研究所 | A kind of high saliferous advanced treatment of industrial waste water and the method for desalination reuse |
| CN204454795U (en) * | 2015-01-07 | 2015-07-08 | 青岛海大北方节能环保有限公司 | A kind ofly reclaim the system that reverse osmosis concentrated water produces de-mineralized water |
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