CN204824413U - Water system is returned to high recovery low pressure - Google Patents
Water system is returned to high recovery low pressure Download PDFInfo
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- CN204824413U CN204824413U CN201520544682.2U CN201520544682U CN204824413U CN 204824413 U CN204824413 U CN 204824413U CN 201520544682 U CN201520544682 U CN 201520544682U CN 204824413 U CN204824413 U CN 204824413U
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- water
- waste water
- low pressure
- reverse osmosis
- recovery low
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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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Abstract
The utility model provides a water system is returned to high recovery low pressure, is including the waste water water supply system that connects gradually, and waste water protection system, one section reverse osmosis system and two -stage process receive membrane that the system of straining constitutes except that the salt system, the water input that the system of straining was received to the two -stage process is one section reverse osmosis system's a dense water output. Waste water water supply system is frequency conversion water supply system. Be arranged in industrial waste water, the desalination of regeneration water advanced treatment retrieval and utilization, the salt rejection can reach 90-95%, be used for industrial waste water, regeneration water advanced treatment retrieval and utilization, the rate of recovery can reach 70-85%, reduces follow -up blowdown flow rate, intaking, other recycling system are low more than 50% on year -on -year basis for pressure, the present invention reduces energy consumption.
Description
Technical field
The utility model relates to the method for waste water desalination in a kind of waste water circulation system, particularly relates in industrial effluent reusing, recirculated water reuse, town regenerated water reclaiming system, adopts the method for embrane method desalination system.Belong to industrial effluent reusing, town regenerated water reuse field.
Background technology
China is lack of water country, and shortage of water resources has become the significant problem of current restriction social progress and Economic development.In town water, process water accounts for more than 60% of total Water, and recirculated cooling water accounts for more than 70% of industrial water consumption.Therefore improving the cyclic utilization rate of industrial colling, limited water resources is farthest utilized, is the important channel of saving process water.
Due to make up water water quality, and the restriction of system process condition, the cycles of concentration of recirculated water improves limited.And depend merely on the continuous progress of reagent combination, the cycles of concentration bottleneck still can not broken through.Therefore developing efficient recirculated cooling water recycling processing technique is the important channel realizing water saving.
Along with the growing tension of water resources, the water technology such as reusing sewage, sea water desaltination arises at the historic moment.Compare municipal effluent and seawater, the reuse of the sewer of circulating water system all has great advantage from the viewpoint of economic aspect or from technical feasibility, is worth promoting.By the reuse of Wastewater Form Circulating Cooling Water, effectively can improve the cycles of concentration of circulating water system, total blowdown flow rate of minimizing water unit, has good economic benefit and social benefit.
The treatment process of several raising cycles of concentration adopted is more at present: recirculated water adds acid system, weakly acidic cationic exchanger resin method, reverse osmosis desalination method, make up water sofening treatment method.Aforesaid method mainly has problems the problems such as the rate of recovery is low, energy consumption is high, the cleaning interval is short;
In order to solve the Problems existing in desalination system, the utility model provides a kind of method that low pressure operation is reliable, running cost is low, the rate of recovery is high.
Utility model content
The utility model object is: the problem that waste water recycling concentration rate is low in order to solve, operating pressure is high, the utility model proposes a kind of high-recovery low pressure reuse water system.
The technical solution of the utility model is: a kind of high-recovery low pressure reuse water system, comprises the waste water water feeding system connected successively, waste water securing system, the film desalting system that one section of reverse osmosis system and two sections of nanofiltration system are formed; The water input of two sections of nanofiltration system is dense water output terminals of one section of reverse osmosis system.
Waste water water feeding system is frequency conversion water feeding system; Securing system is smart filtering system and the coarse filtration system 32 that filtration unit comprises series connection, by crown_interception, removes suspended substance etc.
The main pipeline of water feeding system is provided with the slow open system 2 of electrically operated valve, the smart filtering system 32 of waste water securing system, one section of reverse osmosis system 41 of film desalting system and two sections of nanofiltration system 42;
Securing system water outlet enters film desalting system, is introduced into one section of reverse osmosis system, and one section of reverse osmosis system produces Water circulation, and dense water enters two sections of nanofiltration system, and two sections are produced water and enter one section of water inlet, concentrated water discharge;
The beneficial effects of the utility model are:
(1) for desalination in trade effluent, regenerated recycle-water advanced treatment and reclamation, ratio of desalinization can reach 90 ~ 95%;
(2) for trade effluent, regenerated recycle-water advanced treatment and reclamation, the rate of recovery can reach 70 ~ 85%, reduces follow-up blowdown flow rate; Intake pressure on year-on-year basis other reclaiming systems is low by more than 50%; Thus saving energy consumption;
(3) utilize two kinds of dual-membrane process, significantly can reduce fouling membrane, reduce cleaning frequency, be more than prolonging service lifetime of film to 3 year.
Accompanying drawing explanation
Fig. 1 the utility model is high-recovery low pressure reuse water system and schema.
Embodiment
As shown in the figure, waste water water feeding system 1, the coarse filtration system 31 of the slow open system of electrically operated valve 2, waste water securing system, the smart filtering system 32 of waste water securing system, one section of reverse osmosis system 41 of film desalting system and two sections of nanofiltration system 42.
A kind of high-recovery low pressure reuse water system, comprises the waste water water feeding system connected successively, waste water securing system, the film desalting system that one section of reverse osmosis system and two sections of nanofiltration system are formed; The water input of two sections of nanofiltration system is dense water output terminals of one section of reverse osmosis system.Waste water water feeding system is frequency conversion water feeding system; Securing system is that filtration unit comprises smart filtering system and coarse filtration system 32, by crown_interception, removes suspended substance etc.
The main pipeline of water feeding system is provided with the slow open system 2 of electrically operated valve; utilize frequency conversion water feeding system to feed water, the water inlet of electronic slow open system, through securing system coarse filtration; water outlet enters desalination system, successively enters one section of reverse osmosis system, two sections of nanofiltration system carry out desalination, de-organism.
Above process reduces system saltiness, organic content greatly, reaches and produces Water circulation index, improves system waste water recycling multiplying power, reduces the object of energy consumption.
Described frequency conversion water feeding system, adopts conversion system, controls starting mode of pump, utilizes frequency conversion and electronicly opens combination technology slowly, and guarantee system starts and inactively can maintain slow running status; Reach soft start object, reduce and impact follow-up system, protection subsequent film system, variable frequency starting frequency 25HZ, start time is higher than 30s; Automatic protective system, ensures to enter membranous system influent quality SDI < 3; Utilize reverse osmosis membrane to be combined with nanofiltration membrane, nanofiltration is produced Water Sproading and utilize to feed water by reverse osmosis, strengthen flow system flow, ensure that in membrane module, high flow rate runs;
Described electronic slow open system, utilizes high-precision electric to open the door slowly, further Controlling System, and safeguards system is boosted slowly, and abundant emptying system internal residual gas, prevents visual telescope phenomenon.The slow door opening action time is higher than 30s;
Described securing system adopts coarse filtration to add secondary filter two-stage filtration system, and coarse filtration system accuracy reaches 100 microns, and ultra-filtration system precision reaches 5 microns, can ensure the long-time running of subsequent film system normal table like this; Described desalting system comprises reverse osmosis and nanofiltration system, two-piece design, and every section of all high flow rate operation under membrane element optimum flow, forms current to membrane surface flushing, prevent medicine, throw out in film surface detention while high flow rate runs.One section of reverse osmosis concentrated water pressure, without the need to supercharging, directly enters two sections of nanofiltration system, makes full use of overbottom pressure, carries out two sections of desalinations, concentrated.Difference and other techniques adopt concentrate recirculation mode, and native system adopts two sections to produce water reflux type, thus increase the pollutent solubility such as system flow rate, reduction influent quality hardness, improve system long-term stability and run.
Those of ordinary skill in the field are to be understood that: the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle; any amendment of making, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a high-recovery low pressure reuse water system, is characterized in that, comprises the waste water water feeding system connected successively, waste water securing system, the film desalting system that one section of reverse osmosis system and two sections of nanofiltration system are formed; The water input of two sections of nanofiltration system is dense water output terminals of one section of reverse osmosis system.
2. high-recovery low pressure reuse water system according to claim 1, it is characterized in that, waste water water feeding system is frequency conversion water feeding system.
3. high-recovery low pressure reuse water system according to claim 1, is characterized in that, securing system is smart filtering system and the coarse filtration system that filtration unit comprises series connection.
4. high-recovery low pressure reuse water system according to claim 1, is characterized in that, the main pipeline of water feeding system is provided with the slow open system of electrically operated valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520544682.2U CN204824413U (en) | 2015-07-24 | 2015-07-24 | Water system is returned to high recovery low pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520544682.2U CN204824413U (en) | 2015-07-24 | 2015-07-24 | Water system is returned to high recovery low pressure |
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| CN204824413U true CN204824413U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520544682.2U Active CN204824413U (en) | 2015-07-24 | 2015-07-24 | Water system is returned to high recovery low pressure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113716650A (en) * | 2020-05-25 | 2021-11-30 | 矿冶科技集团有限公司 | High-salinity mine water desalting device and desalting method |
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2015
- 2015-07-24 CN CN201520544682.2U patent/CN204824413U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113716650A (en) * | 2020-05-25 | 2021-11-30 | 矿冶科技集团有限公司 | High-salinity mine water desalting device and desalting method |
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