CN101530747A - Membrane module combined type pulse backwashing process - Google Patents
Membrane module combined type pulse backwashing process Download PDFInfo
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- CN101530747A CN101530747A CN200910037724A CN200910037724A CN101530747A CN 101530747 A CN101530747 A CN 101530747A CN 200910037724 A CN200910037724 A CN 200910037724A CN 200910037724 A CN200910037724 A CN 200910037724A CN 101530747 A CN101530747 A CN 101530747A
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Abstract
The invention discloses a membrane module combined type pulse backwashing process, which comprises the following steps: 1) backflushing with compressed air; 2) backwashing with permeable water; 3) reinforced washing with added drugs; and 4) chemical cleaning. The process has the advantages of simple and convenient operation, low economic cost, and short time for restoring and regenerating membrane flux, is quicker and more thorough to restore and regenerate the membrane flux compared with the prior cleaning method, and can save energy sources and the dosage of a cleaning agent.
Description
Technical field
The present invention relates to a kind of membrane module combined type pulse backwashing process, especially need not dismantle the method for filter cylinder and the backwash of suitable tubular type composite membrane assembly.
Background technology
At present, cleaning for sewage disposal device, the traditional cleaning method of general on the market employing, also cry and just washing method, (both added acid or added alkali or other cleaning agent in pure water, device systems is during as ordinary production, and the ON cycle pump carries out wash cycles, different is to close the penetrating fluid outlet valve; Every about 20 minutes, open the penetrating fluid outlet valve, observe the permeate flow meter, detect membrane flux, recover) until membrane flux.There is following problem in traditional cleaning method: 1, the flux resume speed is slow, the energy consumption height; 2, flux recovers not thorough; 3, can not onlinely carry out the recovery regeneration of ceramic membrane flux.
To be a kind of backwash mode of disclosure of the Invention of 200710056017.9 clean the ceramic film backwash method that recovers regeneration to the membrane flux of ceramic membrane equipment to application number, this invention is in backwash process, threeway, counter-flushing liquid storage tank, backwashing pump, backwash control valve, backwashing pressure table have been installed outside ceramic film component in addition, but this back-flushing method complex process, the financial cost height, narrow application range, energy consumption height, the defective that takes time and effort.
Summary of the invention
In order to overcome the complex process that existing film backwash technique exists, the financial cost height, narrow application range, energy consumption height, defective such as take time and effort, the invention provides a kind of membrane module combined type pulse backwashing process that is used for, it is short, faster, more thorough to membrane flux recovery regeneration than conventional clean method that this backwash technique is easy and simple to handle, financial cost is low, membrane flux recovers the recovery time, can also save the energy and cleaning agent consumption.
This real the technical solution adopted for the present invention to solve the technical problems is: this membrane module combined type pulse backwashing process is: 1) compressed air recoil; 2) use the permeate water backwash; 3) adding medicine strengthens washing; 4) Chemical cleaning.
Compressed air backwashing pressure described in the above-mentioned membrane module combined type pulse backwashing process is controlled at 0.4～0.65Mpa; Described is 50～360L/m with permeate water backwash intensity
2.h; The medicament that described interpolation medicine is strengthened washing is inorganic acid solution or organic acid solns such as acetate, salicylic acid such as hydrochloric acid, sulfuric acid, perchloric acid, and the concentration of this medicament is 50～200mg/L (acid); The used medicament of described Chemical cleaning is acid with strong oxidizing property or highly basic such as NaOH, potassium hydroxide such as sulfuric acid, nitric acid, hydrochloric acid, and the concentration of this medicament is 1～3%.
The invention has the beneficial effects as follows that it is short, faster, more thorough to membrane flux recovery regeneration than conventional clean method that technological operation is easy, financial cost is low, membrane flux recovers the recovery time, can also save the energy and cleaning agent consumption.
The specific embodiment
Below in conjunction with example the present invention is done further specific descriptions, the tool parameter value can be regulated according to the practical application operating mode, under the prerequisite of processing step unanimity, doing to change to adjust in the numerical value that provides is got the interval does not have substantial effect to effect of the present invention, and concrete numerical value is got the interval as subordinate list.
Embodiment 1
At first with gas compressing apparatus air is pressed into former delivery port, the compressed air backwashing pressure is controlled at 0.65Mpa, then water is pressed into from former delivery port, and clear water backwash intensity is 50L/m
2.h, add hydrochloric acid then and wash by force, concentration is 50mg/L, uses the strong oxidizing property sulfuric acid cleaned at last, and concentration is 1%.
Embodiment 2
At first with gas compressing apparatus air is pressed into former delivery port, the compressed air backwashing pressure is controlled at 0.4Mpa, then water is pressed into from former delivery port, and clear water backwash intensity is 360L/m
2.h, add hydrochloric acid then and wash by force, concentration is 200mg/L, uses the strong oxidizing property sulfuric acid cleaned at last, and concentration is 3%.
Embodiment 3
At first with gas compressing apparatus air is pressed into former delivery port, the compressed air backwashing pressure is controlled at 0.4Mpa, then water is pressed into from former delivery port, and clear water backwash intensity is 360L/m
2.h, add sulfuric acid then and wash by force, concentration is 200mg/L, cleans with highly basic potassium hydroxide at last, and concentration is 3%.
Table membrane module combined type pulse backwashing process technical parameter
| Project | Parameter (unit) | Project | Parameter (unit) |
| Filter cycle | >60min | Backwash mode | Gas, water associating backwash |
| Backwash always lasts | <2min | Backwash air pressure | 0.4～0.65Mpa |
| During gas backwash consumption gas | 10L/m 2Prop up inferior | Water backwash intensity | 50～360L/m 2·h |
| Strengthen backwash concentration | 50～200mg/L (acid) | Water backwash percentage of water loss | <7％ |
| The Chemical cleaning cycle | 30 days | Chemical cleaning concentration | 1～3％ |
Claims (5)
1. one kind is used for membrane module combined type pulse backwashing process, and this technology performing step is: 1) compressed air recoil; 2) use the permeate water backwash; 3) adding medicine strengthens washing; 4) Chemical cleaning.
2. membrane module combined type pulse backwashing process according to claim 1 is characterized in that: described compressed air backwashing pressure is controlled at 0.4～0.65Mpa.
3. membrane module combined type pulse backwashing process according to claim 2 is characterized in that: described is 50～360L/m with permeate water backwash intensity
2.h.
4. membrane module combined type pulse backwashing process according to claim 3, it is characterized in that: the medicament that described interpolation medicine is strengthened washing is inorganic acid solution or organic acid solns such as acetate, salicylic acid such as hydrochloric acid, sulfuric acid, perchloric acid, and the concentration of this medicament is 50～200mg/L.
5. according to the arbitrary described membrane module combined type pulse backwashing process of claim 1 to 4, it is characterized in that: the used medicament of described Chemical cleaning is acid with strong oxidizing property or highly basic such as NaOH, potassium hydroxide such as sulfuric acid, nitric acid, hydrochloric acid, and the concentration of this medicament is 1～3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910037724A CN101530747A (en) | 2009-03-06 | 2009-03-06 | Membrane module combined type pulse backwashing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910037724A CN101530747A (en) | 2009-03-06 | 2009-03-06 | Membrane module combined type pulse backwashing process |
Publications (1)
| Publication Number | Publication Date |
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| CN101530747A true CN101530747A (en) | 2009-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN200910037724A Pending CN101530747A (en) | 2009-03-06 | 2009-03-06 | Membrane module combined type pulse backwashing process |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102397752A (en) * | 2010-09-09 | 2012-04-04 | 山西太钢不锈钢股份有限公司 | Method for cleaning ultrafiltration membrane |
| CN104162367A (en) * | 2014-09-03 | 2014-11-26 | 昆明滇池水务股份有限公司 | Method and device for cleaning high-efficiency water-saving medicine-saving membrane unit |
| CN104884151A (en) * | 2012-12-18 | 2015-09-02 | 格兰富控股联合股份公司 | Method of cleaning a liquid fluid filter |
| CN107158956A (en) * | 2017-06-19 | 2017-09-15 | 河南师范大学 | The reinforcing cleaning method of membrane module in a kind of hair product industry dyeing liquor waste water recycling |
| CN109837203A (en) * | 2017-11-28 | 2019-06-04 | 浙江太阳石水处理有限公司 | A kind of efficient microalgae concentration technology based on ceramic membrane technology |
| CN111195484A (en) * | 2020-01-17 | 2020-05-26 | 中国石油天然气股份有限公司 | Surfactant for cleaning plate-type ceramic membrane for oilfield wastewater treatment and cleaning method |
-
2009
- 2009-03-06 CN CN200910037724A patent/CN101530747A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102397752A (en) * | 2010-09-09 | 2012-04-04 | 山西太钢不锈钢股份有限公司 | Method for cleaning ultrafiltration membrane |
| CN102397752B (en) * | 2010-09-09 | 2013-07-10 | 山西太钢不锈钢股份有限公司 | Method for cleaning ultrafiltration membrane |
| CN104884151A (en) * | 2012-12-18 | 2015-09-02 | 格兰富控股联合股份公司 | Method of cleaning a liquid fluid filter |
| CN104884151B (en) * | 2012-12-18 | 2018-04-03 | 格兰富控股联合股份公司 | The method of wash liquid stream filter |
| CN104162367A (en) * | 2014-09-03 | 2014-11-26 | 昆明滇池水务股份有限公司 | Method and device for cleaning high-efficiency water-saving medicine-saving membrane unit |
| CN104162367B (en) * | 2014-09-03 | 2016-03-02 | 昆明滇池水务股份有限公司 | The cleaning method of a kind of high-efficiency water-saving, joint medicine film group device and device |
| CN107158956A (en) * | 2017-06-19 | 2017-09-15 | 河南师范大学 | The reinforcing cleaning method of membrane module in a kind of hair product industry dyeing liquor waste water recycling |
| CN109837203A (en) * | 2017-11-28 | 2019-06-04 | 浙江太阳石水处理有限公司 | A kind of efficient microalgae concentration technology based on ceramic membrane technology |
| CN111195484A (en) * | 2020-01-17 | 2020-05-26 | 中国石油天然气股份有限公司 | Surfactant for cleaning plate-type ceramic membrane for oilfield wastewater treatment and cleaning method |
| CN111195484B (en) * | 2020-01-17 | 2022-05-06 | 中国石油天然气股份有限公司 | Surfactant for cleaning plate-type ceramic membrane for oilfield wastewater treatment and cleaning method |
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Open date: 20090916 |