CN201317694Y - Device for processing reverse osmosis concentrate water through using membrane filtration device - Google Patents
Device for processing reverse osmosis concentrate water through using membrane filtration device Download PDFInfo
- Publication number
- CN201317694Y CN201317694Y CNU200820232440XU CN200820232440U CN201317694Y CN 201317694 Y CN201317694 Y CN 201317694Y CN U200820232440X U CNU200820232440X U CN U200820232440XU CN 200820232440 U CN200820232440 U CN 200820232440U CN 201317694 Y CN201317694 Y CN 201317694Y
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- Prior art keywords
- water
- reverse osmosis
- group
- valve
- ultralow pressure
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 119
- 229910001868 water Inorganic materials 0.000 title claims abstract description 119
- 238000001223 reverse osmosis Methods 0.000 title claims abstract description 63
- 238000005374 membrane filtration Methods 0.000 title abstract 7
- 239000012141 concentrate Substances 0.000 title abstract 6
- 239000012528 membrane Substances 0.000 claims abstract description 59
- 238000001728 nano-filtration Methods 0.000 claims abstract description 39
- 238000004140 cleaning Methods 0.000 claims abstract description 33
- 239000002455 scale inhibitor Substances 0.000 claims description 21
- 238000011010 flushing procedure Methods 0.000 claims description 13
- 230000001105 regulatory Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 11
- 239000002253 acid Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005342 ion exchange Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 230000003204 osmotic Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 210000002381 Plasma Anatomy 0.000 description 1
- 230000002378 acidificating Effects 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000979 retarding Effects 0.000 description 1
- 235000019600 saltiness Nutrition 0.000 description 1
Abstract
The utility model relates to a concentrate water reclaiming and reutilizing device, in particular to a device for processing reverse osmosis concentrate water through using membrane filtration device. The device for processing reverse osmosis concentrate water through using membrane filtration device comprises a membrane filtration device, wherein a water inlet pipeline of the membrane filtration device is connected with a water discharge pipeline of an original reverse osmosis device, a water inlet valve is arranged on the water inlet pipeline, the membrane filtration device comprises an ultralow pressure reverse osmosis group and a nanofiltration membrane group, wherein the water inlet pipeline is connected with the ultralow pressure reverse osmosis group, the water discharge pipeline of the ultralow pressure reverse osmosis group is connected with the nanofiltration membrane group, a water generating pipeline of the ultralow pressure reverse osmosis group is connected with a main water generating pipeline, the water discharge pipeline of the nanofiltration membrane group is connected with a main water discharge valve, the water generating pipeline of the nanofiltration membrane group is connected with the main water generating pipeline, and the main water generating pipeline is connected with a main water generating valve. The device for processing reverse osmosis concentrate water through using membrane filtration device has rational structure, small occupied area, and low operation and maintenance cost, reutilizes most concentrate water, greatly improves the water utilization coefficient, can prevent devices from fouling, reduces the membrane cleaning frequency, and prolongs the service life of the devices.
Description
Technical field:
The utility model relates to a kind of dense water recycling equipment, especially a kind of equipment of handling reverse osmosis concentrated water with membrane filter appts.
Background technology:
Reverse osmosis process is the desalting technology of a comparative maturity in the existing water treatment field, and reverse osmosis is a kind of process opposite with the naturally osmotic phenomenon that is produced with the contacted strong solution of semi-permeable membranes that bring pressure to bear on.Press when the naturally osmotic of exerting pressure above solution, then solution just can flow through semi-permeable membranes, forms dilute solution in an opposite side, and forms the higher solution of concentration in a side of pressurization.This phenomenon promptly is called reverse osmosis.Compare with traditional ion exchange process, reverse osmosis need not acid-alkali regeneration, can not produce the acidic and alkaline waste water discharging, greatly reduces environmental pollution, also greatly reduces the day-to-day operation expense.
But a drawback has been compared in reverse osmosis with traditional ion-exchange, the utilization ratio of the former water of reverse osmosis process is on the low side, the general rate of recovery≤75%, and the utilization ratio of the former water of ion exchange process 〉=90%.From now the world and domestic water resources form, it has been a undisputable fact that water resources lacks, each state all how conserve water resource and how making full use of on the water resources make an issue of, to alleviate increasingly serious water resources shortage.
The processing of reverse osmosis concentrated water now adopts independent reverse osmosis unit to handle, but because the saltiness of dense water is higher, the pressure height that needs, the very fast easily fouling of reverse osmosis membrane needs frequent cleaning.And independent reverse osmosis unit is set needs a lot of auxiliary facilities, such as equipment such as water tank, topping-up pump, security personnel's strainer, high-pressure pump, these equipment all need to take up an area of, and what have also needs power consumption or daily consumption, and operation and the cost safeguarded are all than higher; And for project reconstruction, take up an area of be difficult to often solve problem.
The utility model content:
The utility model provides a kind of equipment of handling reverse osmosis concentrated water with membrane filter appts, it is rational in infrastructure, take up an area of few, operation expense is low, most of dense water is utilized again, improved the utilization ratio of water greatly, and can prevent equipment scaling, prolong service life of equipment, solved problems of the prior art.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be: it comprises membrane filter appts, the suction culvert of membrane filter appts is connected with the discharge pipe line of former reverse osmosis unit, suction culvert is provided with inlet valve, described membrane filter appts comprises ultralow pressure reverse osmosis group and nanofiltration membrane group, suction culvert links to each other with ultralow pressure reverse osmosis group, ultralow pressure reverse osmosis group discharge pipe line is connected with the nanofiltration membrane group, ultralow pressure reverse osmosis group water producing pipe road links to each other with the gross output water lines, nanofiltration membrane group discharge pipe line links to each other with total water discharge valve, nanofiltration membrane group water producing pipe road links to each other with the gross output water lines, and the gross output water lines links to each other with the gross output water valve.
Also be provided with PH accommodometer measuring tank and Scale inhibitors batch meter, PH accommodometer measuring tank is regulated volume pump by PH and is linked to each other with suction culvert, and the Scale inhibitors batch meter links to each other with suction culvert by the Scale inhibitors volume pump.
Be provided with cleaning/flushing water intaking valve on the suction culvert before ultralow pressure reverse osmosis group, on nanofiltration membrane group discharge pipe line, be parallel with the cleaning water discharge valve, on the gross output water lines, be parallel with to clean and produce water valve.
Membrane filter appts of the present utility model adopts two-part, and one section is adopted the ultralow pressure reverse osmosis membrane assembly, is used for increasing the transmitance of water and the ratio of desalinization of raising equipment; Two sections are adopted nanofiltration membrane, the ratio of desalinization of nanofiltration membrane is low, mainly to polyvalent ionic rejection height, so nanofiltration mainly is the fouling tendency that delays two sections of films, see so on the whole, all use the fouling tendency of ultralow pressure reverse osmosis membrane low than one or two sections, and than one or two sections ratio of desalinization height of all using nanofiltration membrane, be two-part owing to what adopt in addition, than the rate of recovery height with one-part form, the rate of recovery is generally all more than 65%; On suction culvert, be provided with PH accommodometer measuring tank and Scale inhibitors batch meter, and regulate volume pump and the Scale inhibitors volume pump adds acid and Scale inhibitors in suction culvert by PH, mainly be in order to delay the fouling tendency of film, reduce the cleaning frequency of film as far as possible, the general meta-alkalescence of the pH value of former reverse osmosis concentrated water, under the alkaline condition, high-load heavy carbonic root in the dense water and calcium, magnesium plasma are easy to form fouling in the dense water side of film, so by regulating PH below 7.6, fouling tendency that can well retarding means.The purpose that adds Scale inhibitors also is in order to delay the fouling tendency that the dense water side of film causes owing to the concentration polarization phenomenon, though added a certain amount of Scale inhibitors before the former reverse osmosis equipment, but because after having passed through the scale effect of former reverse osmosis, its efficiency reduces greatly, must add the purpose that a certain amount of Scale inhibitors just can better realize delaying fouling again; Cleaning/flushing water intaking valve is set on suction culvert, the cleaning water discharge valve is set on the discharge pipe line of nanofiltration membrane group, on the gross output water lines, be provided with to clean and produce water valve, link to each other with the detergent line of former reverse osmosis equipment, after equipment moves for some time, can clean equipment/wash, delay the fouling tendency of film.
Description of drawings:
Fig. 1 is a principle syndeton synoptic diagram of the present utility model.
Among the figure, 1, former reverse osmosis unit; 2, former reverse osmosis produced water lines; 3, discharge pipe line; 4, inlet valve; 5, PH accommodometer measuring tank; 6, PH regulates volume pump; 7, Scale inhibitors batch meter; 8, Scale inhibitors volume pump; 9, suction culvert; 10, ultralow pressure reverse osmosis membrane group; 11, nanofiltration membrane group; 12, ultralow pressure reverse osmosis membrane group discharge pipe line; 13, ultralow pressure reverse osmosis membrane group water producing pipe road; 14, cleaning/flushing water intaking valve; 15, clean water discharge valve; 16, clean the product water valve; 17, nanofiltration membrane group discharge pipe line; 18, nanofiltration membrane group water producing pipe road; 19, total water discharge valve; 20, gross output water lines; 21, gross output water valve; 22, inlet gage; 23, nanofiltration inlet gage; 24, nanofiltration water discharge pressure table; 25, produce water flowmeter.
Embodiment:
For clearly demonstrating the technical characterstic of this programme, below by embodiment, and in conjunction with its accompanying drawing, the utility model is elaborated.
As shown in Figure 1, the concentrated water drainage water lines 3 of former reverse osmosis unit 1 connects ultralow pressure reverse osmosis membrane group 10 through inlet valve 4, suction culvert 9, ultralow pressure reverse osmosis group discharge pipe line 12 connects nanofiltration membrane group 11, ultralow pressure reverse osmosis group water producing pipe road 13 links to each other with gross output water lines 20, nanofiltration membrane group discharge pipe line 17 links to each other with total water discharge valve 19, nanofiltration membrane group water producing pipe road 18 links to each other with gross output water lines 20, and gross output water lines 20 links to each other with gross output water valve 21.Former reverse osmosis unit water producing pipe road 2 links to each other with the detergent line of former reverse osmosis unit 1.
Also be provided with PH accommodometer measuring tank 5 and Scale inhibitors batch meter 7, PH accommodometer measuring tank 5 is regulated volume pump 6 by PH and is linked to each other with suction culvert 9, and Scale inhibitors batch meter 7 links to each other with suction culvert 9 by Scale inhibitors volume pump 8.
Be provided with cleaning/flushing water intaking valve 14 on the suction culvert 9 before ultralow pressure reverse osmosis group 10, on nanofiltration membrane group discharge pipe line 17, be parallel with and clean water discharge valve 15, on gross output water lines 20, be parallel with to clean and produce water valve 16.
Also be provided with inlet gage 22 on the suction culvert 9 before ultralow pressure reverse osmosis membrane group 10, on ultralow pressure reverse osmosis membrane group discharge pipe line 12, be provided with nanofiltration inlet gage 23, on nanofiltration membrane group discharge pipe line 17, be provided with nanofiltration water discharge pressure table 24, on gross output water lines 20, be provided with and produce water flowmeter 25.
Principle of work is as follows:
1, normal course of operation:
Open inlet valve 4, start PH simultaneously and regulate volume pump 6 and Scale inhibitors volume pump 8, in suction culvert 9, add acid and Scale inhibitors, the dense water of former reverse osmosis unit 1 enters in the ultralow pressure reverse osmosis membrane group 10 through discharge pipe line 3, inlet valve 4, suction culvert 9 and handles, enter in the nanofiltration membrane group 11 after dense water is handled through ultralow pressure reverse osmosis membrane group 10 and further handle, the draining after handling through nanofiltration membrane group 11 is delivered to waste water tank through nanofiltration membrane group discharge pipe line 17, total water discharge valve 19; The product water of the product water of nanofiltration membrane group 11 and ultralow pressure reverse osmosis membrane group 10 through nanofiltration membrane group water producing pipe road 18 with ultralow pressure reverse osmosis group water producing pipe road 13 enter gross output water lines 20, deliver to the reuse point through gross output water valve 21, so just finished the whole normal course of operation of equipment.Start PH when opening inlet valve 4 and regulate volume pump 6 and Scale inhibitors volume pump 8, in dense water, add acid and Scale inhibitors, can delay the fouling tendency of film, reduce the cleaning frequency of film as far as possible.
2, flushing process:
After equipment moves 8 hours continuously, close inlet valve 4, open cleaning/flushing water intaking valve 14 then and clean water discharge valve 15, by original wash-water pump equipment is washed with the product water of former reverse osmosis unit 1, flush time 3～5 minutes has so just been finished the flushing process of entire equipment.Flushing finishes, and equipment can put into operation again.
3, cleaning process:
When equipment moves about 3 months continuously, surpass 2.0bar according to inlet gage 22 with the difference of nanofiltration inlet gage 23 with according to any one value in the difference of nanofiltration inlet gage 23 and nanofiltration water discharge pressure table 24, the flow that perhaps produces water flowmeter 25 reduce to surpass 15% when above, at this moment just need clean, to recover its performance to equipment.During cleaning, at first close inlet valve 4, open cleaning/flushing water intaking valve 14 and clean water discharge valve 15, start flushing process, after flushing process is finished, open again to clean and produce water valve 16, carry out acid cleaning → immersion → alkali cleaning → immersion, close at last to clean and produce water valve 16, carry out the once flushing process again, so just finished the cleaning process of entire equipment.Cleaning finishes, and equipment just can put into operation again.
The utility model does not describe part in detail, is those skilled in the art of the present technique's known technology.
Claims (3)
1, a kind of equipment of handling reverse osmosis concentrated water with membrane filter appts, it is characterized in that: comprise membrane filter appts, the suction culvert of membrane filter appts is connected with the discharge pipe line of former reverse osmosis unit, suction culvert is provided with inlet valve, described membrane filter appts comprises ultralow pressure reverse osmosis group and nanofiltration membrane group, suction culvert links to each other with ultralow pressure reverse osmosis group, ultralow pressure reverse osmosis group discharge pipe line is connected with the nanofiltration membrane group, ultralow pressure reverse osmosis group water producing pipe road links to each other with the gross output water lines, nanofiltration membrane group discharge pipe line links to each other with total water discharge valve, nanofiltration membrane group water producing pipe road links to each other with the gross output water lines, and the gross output water lines links to each other with the gross output water valve.
2, a kind of equipment of handling reverse osmosis concentrated water with membrane filter appts according to claim 1, it is characterized in that: also be provided with PH accommodometer measuring tank and Scale inhibitors batch meter, PH accommodometer measuring tank is regulated volume pump by PH and is linked to each other with suction culvert, and the Scale inhibitors batch meter links to each other with suction culvert by the Scale inhibitors volume pump.
3, a kind of equipment of handling reverse osmosis concentrated water with membrane filter appts according to claim 1, it is characterized in that: be provided with cleaning/flushing water intaking valve on the suction culvert before ultralow pressure reverse osmosis group, on nanofiltration membrane group discharge pipe line, be parallel with the cleaning water discharge valve, on the gross output water lines, be parallel with to clean and produce water valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820232440XU CN201317694Y (en) | 2008-12-22 | 2008-12-22 | Device for processing reverse osmosis concentrate water through using membrane filtration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820232440XU CN201317694Y (en) | 2008-12-22 | 2008-12-22 | Device for processing reverse osmosis concentrate water through using membrane filtration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201317694Y true CN201317694Y (en) | 2009-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820232440XU Expired - Fee Related CN201317694Y (en) | 2008-12-22 | 2008-12-22 | Device for processing reverse osmosis concentrate water through using membrane filtration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201317694Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935111A (en) * | 2010-08-26 | 2011-01-05 | 宝钢工程技术集团有限公司 | Wastewater recycling preparation system with low energy consumption |
| CN102408171A (en) * | 2010-09-25 | 2012-04-11 | 中国石油化工股份有限公司 | Method for treating reverse osmosis concentrated water |
| CN103449571A (en) * | 2013-08-22 | 2013-12-18 | 煤炭科学研究总院杭州环保研究院 | Method and device for processing pit water |
| CN105396461A (en) * | 2015-11-30 | 2016-03-16 | 江苏海祥环保工程有限公司 | Reverse osmosis device |
-
2008
- 2008-12-22 CN CNU200820232440XU patent/CN201317694Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935111A (en) * | 2010-08-26 | 2011-01-05 | 宝钢工程技术集团有限公司 | Wastewater recycling preparation system with low energy consumption |
| CN101935111B (en) * | 2010-08-26 | 2012-12-19 | 宝钢工程技术集团有限公司 | Wastewater recycling preparation system with low energy consumption |
| CN102408171A (en) * | 2010-09-25 | 2012-04-11 | 中国石油化工股份有限公司 | Method for treating reverse osmosis concentrated water |
| CN103449571A (en) * | 2013-08-22 | 2013-12-18 | 煤炭科学研究总院杭州环保研究院 | Method and device for processing pit water |
| CN105396461A (en) * | 2015-11-30 | 2016-03-16 | 江苏海祥环保工程有限公司 | Reverse osmosis device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20141222 |
|
| EXPY | Termination of patent right or utility model |