CN201439496U - Reverse osmosis equipment for advanced treatment of industrial waste water - Google Patents
Reverse osmosis equipment for advanced treatment of industrial waste water Download PDFInfo
- Publication number
- CN201439496U CN201439496U CN2009201684968U CN200920168496U CN201439496U CN 201439496 U CN201439496 U CN 201439496U CN 2009201684968 U CN2009201684968 U CN 2009201684968U CN 200920168496 U CN200920168496 U CN 200920168496U CN 201439496 U CN201439496 U CN 201439496U
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- reverse osmosis
- water
- advanced treatment
- osmosis membrane
- pressure pump
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Abstract
A reverse osmosis equipment for advanced treatment of industrial waste water is technically characterized in that the reverse osmosis equipment comprises a reverse osmosis membrane desalter, a concentrate water exhaust pipe of the reverse osmosis membrane desalter is connected with a concentrate water backflow pipe, and is connected with an outlet pipe of a reverse osmosis water inlet high pressure pump through a high capacity and low lift pipeline pump. According to the water quality characteristics of waste water, the reverse osmosis equipment adopts the single segment design, can effectively reduce the inlet water concentration ratio, on that basis, part of the concentrate water flows back to the outlet of the high pressure pump through the pipeline pump, the flow rate of the reverse osmosis device is increased and the flow velocity of the reverse osmosis membrane surface is also improved, accordingly the deposition trend of the impurities on the reverse osmosis membrane surface is delayed, the pollution of the impurities on the reverse osmosis membrane is reduced, and the service life of the reverse osmosis membrane is effectively improved; meanwhile, as the system adopts the partial concentrate water backflow technique, the actual recovery rate of the membrane system is controlled in reasonable range.
Description
Technical field
The utility model relates to advanced treatment of industrial waste water and reuse field, is specifically related to a kind of equipment that utilizes reverse osmosis membrane technology tertiary grade industrial waste water to be carried out advanced treatment.
Background technology
Utilize advanced treatment that membrane technique carries out waste water as a maturation, advanced person, water technology efficiently, accepted by people gradually.With respect to other technologies, reverse osmosis technology has become a requisite gordian technique in many waste water reclaiming technology owing to have remarkable advantages at aspects such as removing solvability COD, heavy metal ion, colourity.
Though reverse osmosis technology has the high characteristics of effluent characteristics, but when intaking to tertiary grade industrial waste water, because condition of water quality is poor, reverse-osmosis membrane element very easily produces pollution, thereby cause that water flux descends, matting is frequent, cause the reverse osmosis membrane lost of life, especially for some specific input water quality, as with the tertiary treatment waste water of plating, printing and dyeing, percolate during as feed water by reverse osmosis, above-mentioned shortcoming is more outstanding.On the other hand, existing reverse osmosis system generally all adopts the two-part mounting means for improving the system recoveries rate, and promptly the dense water of first section reverse osmosis unit enters second section reverse osmosis unit and handles.In the reverse osmosis system of this structure, because the fluid concentration ratio of second section reverse osmosis membrane apparatus increases, membrane element is dirty especially easily stifled, and system is difficult for long-term stable operation, increase the replacing frequency of matting frequency and filtration consumptive material thus, finally increased the running cost of advanced treatment.
The utility model content
For overcoming above technical problem, the utility model aims to provide a kind of reverse osmosis desalinization system of advanced treatment of industrial waste water, and the pollution of reverse osmosis face can effectively slow down in this system, improves the utilization ratio of water simultaneously.The utility model adopts technical solution as follows:
Consider that water-quality guideline such as organism in the former water, saltiness, hardness, basicity and pH value are relatively poor,, adopt the unistage type design for reverse osmosis unit for alleviating the pollution on membrane element surface as much as possible.Compare with two-section type design, this technical process is simple relatively, and dense each material concentration of water side is relatively low, and two sections concentration ratios having avoided the two-section type design to bring thus increase and the shortcoming that causes reverse osmosis membrane easily to pollute.
After shortening the film flow process, for the water use efficiency of guaranteeing reverse-osmosis membrane element in design specifications, reverse osmosis unit adopts dense water section technique of backflow, the dense water of part that is about to reverse osmosis unit makes it be back to the high-pressure pump outlet by circulation bypass duct pump.Thereby strengthened water supply flow and flow velocity, strengthened the scouring capability of face current, can effectively prevent the deposition of dense water side form face organic contamination and various impurity and the generation of reverse osmosis face concentration polarization dirt.
Consider waste water characteristic, reduce the device rate of recovery to 50%～about 55% as far as possible on the basis of strengthening the face water flow velocity, simultaneity factor adopts the dense water cycle of part to guarantee system water comprehensive utilization ratio 〉=65%.
Description of drawings
Accompanying drawing is the utility model overall structure synoptic diagram.
Among the figure: 1, tertiary grade industrial waste water 2, high-pressure pump water inlet pipe 3, high-pressure pump 4, high-pressure pump outlet pipe 5, in-line pump 6, reverse osmosis unit 7, reverse osmosis unit water producing pipe 8, return water tank 9, dense pond 10, adjusting control valve (A) 11, concentrated water discharge pipe 12, adjusting control valve (B) 13, concentrate recirculation pipe
Embodiment
The utility model is described in further detail below in conjunction with example.
As accompanying drawing, as the Yuan Shui of system,, send into high-pressure pump 3 with the pretreated tertiary grade industrial waste water 1 of process by high-pressure pump water inlet pipe 2, after high-pressure pump 3 pressurizations, deliver to reverse osmosis unit 6 by high-pressure pump outlet pipe 4.Reverse osmosis system adopts the unistage type design herein.After reverse osmosis unit 6 is handled, produce water and deliver to return water tank 8 by reverse osmosis unit water producing pipe 7, the dense water of output drains into dense pond 9 by concentrated water discharge pipe 11.And the utility model draws on concentrated water discharge pipe 11 especially and picks out concentrate recirculation pipe 13, and is connected on the high-pressure pump outlet pipe 4 by the in-line pump 5 of big flow, low lift, to improve the rate of discharge of high-pressure pump.Concentrated water discharge pipe 11 and concentrate recirculation pipe 13 are provided with adjusting control valve (A) 10 and adjusting control valve (B) 12, can regulate the concentrate recirculation amount as required.Consider waste water characteristic, on the basis of strengthening crossflow velocity, reduce the device rate of recovery as far as possible, so reverse osmosis unit rate of recovery operated by rotary motion is 50%～55%, simultaneously owing to adopt the dense water cycle of part can guarantee system water comprehensive utilization ratio 〉=65%.
Following table is that the actual engineering operation characteristics of the utility model and the waste water advanced treatment unit of common reverse osmosis compare:
Annotate: the system water source is process pretreated tertiary grade industrial waste water, wherein COD
CrBe 20～50mg/L.
Can find out that from last table under the situation of identical working condition and output qualified water, the utility model obviously extended than the cleaning interval of two-section type reverse osmosis system, thereby prolong the work-ing life and the cost of reverse osmosis membrane.
Claims (5)
1. the reverse osmosis equipment of an advanced treatment of industrial wastewater comprises reverse osmosis unit and reverse osmosis unit water inlet high-pressure pump, it is characterized in that drawing from the concentrated water discharge pipe of reverse osmosis unit picking out the concentrate recirculation pipe coupling to the outlet pipe of high-pressure pump.
2. the reverse osmosis equipment of advanced treatment of industrial wastewater as claimed in claim 1 is characterized in that: be equipped with adjusting control valve on described concentrated water discharge pipe and the concentrate recirculation pipe.
3. the reverse osmosis equipment of advanced treatment of industrial wastewater as claimed in claim 1 is characterized in that: the in-line pump that also is provided with big flow, low lift in the middle of described concentrate recirculation pipe and the high-pressure pump outlet pipe.
4. the reverse osmosis equipment of advanced treatment of industrial wastewater as claimed in claim 1 is characterized in that: the design of described reverse osmosis unit employing single hop.
5. the reverse osmosis equipment of advanced treatment of industrial wastewater as claimed in claim 1, it is characterized in that: the described reverse osmosis unit rate of recovery is controlled at 50%～55%, and system water comprehensive utilization ratio 〉=65%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201684968U CN201439496U (en) | 2009-07-29 | 2009-07-29 | Reverse osmosis equipment for advanced treatment of industrial waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201684968U CN201439496U (en) | 2009-07-29 | 2009-07-29 | Reverse osmosis equipment for advanced treatment of industrial waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201439496U true CN201439496U (en) | 2010-04-21 |
Family
ID=42544165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201684968U Expired - Fee Related CN201439496U (en) | 2009-07-29 | 2009-07-29 | Reverse osmosis equipment for advanced treatment of industrial waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201439496U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381743A (en) * | 2010-08-31 | 2012-03-21 | 江苏金山环保工程集团有限公司 | Reverse osmosis apparatus for industrial wastewater treatment |
| CN104016446A (en) * | 2014-06-26 | 2014-09-03 | 四川省百麟新能环保科技有限公司 | Efficient reverse osmosis wastewater treatment device |
| CN104081200A (en) * | 2011-09-02 | 2014-10-01 | 凯米罗总公司 | Device and method for characterizing solid matter present in liquids |
| CN104671351A (en) * | 2013-12-02 | 2015-06-03 | 株式会社日立制作所 | Sea water desalination system |
| CN110078245A (en) * | 2019-06-06 | 2019-08-02 | 淄博博立特冷冻空调设备有限公司 | A kind of systemic circulation multiplying power concentrate recirculation embrane method Sewage treatment reclaiming system |
| CN114314752A (en) * | 2021-12-17 | 2022-04-12 | 南京中电环保水务有限公司 | Closed circulation reverse osmosis system and process |
-
2009
- 2009-07-29 CN CN2009201684968U patent/CN201439496U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381743A (en) * | 2010-08-31 | 2012-03-21 | 江苏金山环保工程集团有限公司 | Reverse osmosis apparatus for industrial wastewater treatment |
| CN104081200A (en) * | 2011-09-02 | 2014-10-01 | 凯米罗总公司 | Device and method for characterizing solid matter present in liquids |
| CN104671351A (en) * | 2013-12-02 | 2015-06-03 | 株式会社日立制作所 | Sea water desalination system |
| CN104016446A (en) * | 2014-06-26 | 2014-09-03 | 四川省百麟新能环保科技有限公司 | Efficient reverse osmosis wastewater treatment device |
| CN104016446B (en) * | 2014-06-26 | 2015-11-04 | 四川省力恒环保科技有限公司 | A kind of reverse osmosis wastewater treatment equipment |
| CN110078245A (en) * | 2019-06-06 | 2019-08-02 | 淄博博立特冷冻空调设备有限公司 | A kind of systemic circulation multiplying power concentrate recirculation embrane method Sewage treatment reclaiming system |
| CN114314752A (en) * | 2021-12-17 | 2022-04-12 | 南京中电环保水务有限公司 | Closed circulation reverse osmosis system and process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100421 Termination date: 20130729 |