CN102580537A - Method for regenerating filter core of security filter - Google Patents
Method for regenerating filter core of security filter Download PDFInfo
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- CN102580537A CN102580537A CN201210055020XA CN201210055020A CN102580537A CN 102580537 A CN102580537 A CN 102580537A CN 201210055020X A CN201210055020X A CN 201210055020XA CN 201210055020 A CN201210055020 A CN 201210055020A CN 102580537 A CN102580537 A CN 102580537A
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Abstract
The invention relates to a method for regenerating a filter core, and concretely relates to a method for regenerating performances of the filter core of a security filter in the sewage reuse. The method mainly comprises the following steps: 1, determining whether the filter core is polluted; 2, carrying out online sterilization by an bactericide; 3, carrying out online high-pressure flushing; 4, carrying out offline medicament solution immersion: selecting a sodium hypochlorite solution, a sodium hydroxide solution and a hydrochloric acid solution as cleaning medicaments; and 5, filling the regenerated filter core into the security filter for later use. The method which combines the online mode and the offline mode has the advantages of effective removal of filter core pollutants, realization of the reuse through the recovery of the performances of the filter core, system operation cost reduction, reduction of the pollution of waste and old filter cores to the environment, simple operation, and strong popularization.
Description
Technical field
The present invention relates to a kind of method of filter core regeneration, be specifically related to the method for security personnel's filter element quality rebuilding in a kind of reusing sewage.
Background technology
Traditional desalination method generally adopts ion-exchange, electrodialysis etc., and in recent years along with development of science and technology, advanced reverse osmosis deaslination The Application of Technology spreads all over countries such as the U.S., Japan, France, Italy.China begins to introduce the water treatment of reverse osmosis unit in the power plant the end of the seventies; The nineties, the development of reverse osmosis membrane became focus; Reverse osmosis technology is mainly used in wastewater treatments such as desalinization, pure water and ultra-pure water preparation, city water processing, municipal sewage treatment and application, industrial electro waste electroplating and pulp and paper industry wastewater treatment, chemical wastewater treatment, food industry, medical industry now, and uses at present in more iron and steel enterprise's waste water desalting processing.
All are used in the reverse osmosis technology design, before counter-infiltration, all will design security personnel's filter, and as last one barrier of reverse osmosis membrane, effect is the molecule that further removes in anhydrating, and guarantees the requirement of counter-infiltration water quality.In the middle of the actual motion, not only there is residual fine particle shape material in the sewage, but also has colloid, organic matter and microorgranic contaminant etc.; So security personnel's filter element in use for some time; Filter core can be polluted and stopped up, and aquifer yield can reduce, and the inlet outlet pressure differential of filter rises.In the application when the filter inlet outlet pressure differential should be in time during greater than setting value renew cartridge more; The filter core life cycle is relevant with filtering water situation and water temperature; General through the water after the hyperfiltration treatment, the life cycle of security personnel's filter core is 3 months, and summer, life cycle was shorter; The expense of annual more renew cartridge is very high, and the waste and old filter core of changing is prone to contaminated environment.
Filter core pollutes surface coverage pollution and the two kinds of forms of filter opening internal congestion pollution of mainly containing.The cartridge surface pollution layer roughly is double-decker, and the upper strata is the unconsolidated formation of larger particles, and lower floor is close on the filter core face, is the fine and smooth layer of small particle diameter.Generally speaking, unconsolidated formation can rinse out under the effect of flow shear, can not produce too much influence to the performance of filter core, one of principal element that the fine and smooth layer of filter core face then is dirty stifled filter core.
Summary of the invention
In order to overcome above-mentioned deficiency, the present invention aims to provide a kind of method of the filter element regeneration of ensuring public security, and through the filter core that strainability has been lost, makes the filter core quality rebuilding, and recycling reduces system operation cost, also reduces waste and old filter core contaminated environment.
The present invention adopts following technical scheme:
Renovation process adopts online (in water treatment procedure) and off-line (filter core is replaced, and throws off with water treatment system) way of combining, mainly may further comprise the steps:
(1) judge that filter core is contaminated: filter core in daily product water process, produce that discharge reduces gradually and water-in and water-out pressure reduction greater than 0.1MPa, show that filter core is contaminated;
(2) online bactericide sterilization: with measuring pump non-oxide microbicide solution is added in security personnel's filter inleting pipe, continue 1 hour;
(3) online high pressure washing: the filter elevator pump frequency conversion frequency of will ensuring public security is heightened to 55Hz, improves hydraulic pressure to 0.5 ~ 0.6MPa, continues 40 minutes;
(4) the off-line soup soaks: filter core is put into the regeneration case, at first, injects sodium hydroxide solution and soaked 48 hours, during per 4 hours upset filter cores once; Wash filter core with demineralized water then, same up to leading towards the electricity of Xian Shui with former water, be and rinse well; Towards Xian Wanhou, in the regeneration case, injected the HCl solution soaking 48 hours again, same per 4 hours upset filter cores once and then wash filter core with demineralized water, up to lead towards the electricity of Xian Shui with former water with, be and rinse well; Inject the liquor natrii hypochloritis then and soaked 4 hours, clean up with demineralized water at last, In Shade drying can reuse; The volume of regeneration case is 1m
3
(5) regeneration back filter core is packed into subsequent usely in security personnel's filter, and earlier with non-oxidizable bactericide sterilization, it is identical that method and (2) goes on foot said method before using.
In such scheme, said non-oxide bactericide is a bromine analog derivative bactericide.Said bromine analog derivative bactericide is preferably SW655 film bactericide specially.
In such scheme, the concentration of said non-oxide microbicide solution is 200 ppm, and consumption is 180 ~ 200L/h.
In such scheme, said liquor natrii hypochloritis is made into the solution that concentration is 5000ppm, and sodium hydroxide solution is made into the solution that concentration is 4000ppm, and hydrochloric acid is made into the solution that concentration is 7500ppm.
Through analyzing form and the material that security personnel's filter core pollutes, confirm method targetedly.The form that security personnel's filter core pollutes is divided into the covering pollution and the filter opening internal congestion pollutes two kinds; Pollutant has colloid pollution, organic matter to pollute and microbial contamination.
It is warm higher to economize on water in summer, autumn, and microbial growth is fast in the water, and 3 non-oxide bactericide sterilizations are carried out in the filter core microbial contamination that prevents to ensure public security weekly, continue 1 hour at every turn.Not only protect security personnel's filter but also can prevent the living fouling of postorder reverse-osmosis membrane element, the method is online method of reproduction.
For the regeneration way that covers pollution layer, can take weekly online high pressure washing once, continue 40 minutes at every turn.Method goes on foot with (3) in the above-mentioned scheme: promote the pump frequency conversion frequency before will ensuring public security and heighten to 55Hz, improve hydraulic pressure to 0.5 ~ 0.6MPa.
The regeneration way of polluting for the filter opening internal congestion is that the off-line soup soaks, and uses the kind of soup to select according to the material that filter core pollutes.Through long-time running chemical analysis and observation, the pollution of filter core is that colloid, organic matter pollute, the plyability of microbial contamination pollutes, and exhausted rare single middle material pollutes.
Medicament kind is confirmed: NaClO solution is applicable to microbial contamination, and NaOH solution is applicable to that organic matter pollutes, and citric acid or hydrochloric acid are applicable to iron pollution, the dirty stifled and part colloid of carbonate crystallization.Owing to be that plyability pollutes, so above kind soup all will be used.The medicament matched proportion density is confirmed: confirm that through test of many times NaClO wiring solution-forming concentration is the solution of 5000ppm, the NaOH solution concentration is 4000ppm, and hydrochloric acid wiring solution-forming concentration is the solution of 7500ppm, uses three kinds of medicaments.
According to the common filter core of experience, through after the regeneration repeated use three times, just can scrap after polluting.
Beneficial effect of the present invention: (1) the present invention analyzes the pollution form and the polluter of security personnel's filter element in the reusing sewage; Select rational regenerative agent and concentration targetedly; Can effectively remove the filter core pollutant, recover the performance of filter core, recycling; (2) the method has adopted online and off-line dual mode to combine, and prevention and pollute back regeneration before having accomplished simultaneously to pollute is novel original, uses effective; (3) the method is described clearly, and method is simple, and the equipment, the facility that apply to are common, easy and simple to handle, so generalization is strong.
Below in conjunction with embodiment the present invention is further specified.
The specific embodiment
Embodiment: the method for security personnel's filter element regeneration:
Filter core in daily product water process, produce that discharge reduces gradually and water-in and water-out pressure reduction greater than 0.1MPa, judge that filter core is contaminated, adopt following steps regeneration:
(1) online bactericide sterilization: the on-the-spot Tai Midunluo measuring pump of installing is the non-oxide microbicide solution of 200ppm with concentration, and promptly SW655 film bactericide specially adds in security personnel's filter inleting pipe, continues 1 hour; The bactericide consumption calculates with separate unit: (the separate unit filter process water yield is 270-300m to 180-200L/h
3/ h, soup are pure non-oxide bactericide), concentration is 200 ppm;
(2) online high pressure washing: the filter elevator pump frequency conversion frequency of will ensuring public security is heightened to 55Hz, improves hydraulic pressure to 0.5 ~ 0.6MPa, continues 40 minutes;
(3) the off-line soup soaks: the filter core that splits out is put into 1m
3In the regeneration case, at first, implantation concentration is that the sodium hydroxide solution of 4000ppm soaked 48 hours, during per 4 hours upset filter cores once; Wash filter core with demineralized water then, same up to leading towards the electricity of Xian Shui with former water, be and rinse well; Towards Xian Wanhou, implantation concentration is the HCl solution soaking 48 hours of 7500ppm in the regeneration case again, and same per 4 hours upset filter cores once and then wash filter core with demineralized water, up to lead towards the electricity of Xian Shui with former water with, be and rinse well; Implantation concentration cleans up with demineralized water for the 5000ppm liquor natrii hypochloritis soaked 4 hours at last then, and In Shade drying can reuse;
(4) regeneration back filter core is packed into subsequent usely in security personnel's filter, and earlier with non-oxidizable bactericide sterilization, it is identical that method and (1) goes on foot said method before using.
Water was the water source during the water depth treating stations adopted in the Taiyuan Iron and Steel Co. energy source and power head factory, adopted two embrane methods to carry out advanced desalination and handled, and produced water and reached the demineralized water standard, and electricity is led below 70 us/cm, produces the high-quality water that stainless steel is used as Taiyuan Iron and Steel Co..Wherein before counter-infiltration, be provided with security personnel's filter, mode is operation one to one.10 of security personnel's filters are installed, adorn 5 diameters in every filter and the be 6 big flow folding type filter element of ", length be 40 ", initial operating stage filter core life cycle is 3 months, and per 3 lunar periodicities are changed a filter core, and it is annual that to consume the spare part expense be more than 100 ten thousand yuan.After inventing this renovation process, reduced the consumption of filter core, extended to 7-9 month by original 3 months the service life of filter core.Practice thrift the spare part expense and reduce cost, reduce the pollution of industrial refuse to environment simultaneously, the filter core usage quantity is reduced to original nearly 25%, and the expense of annual buying filter core is reduced to below 300,000 yuan.
Claims (5)
1. the method for filter element regeneration of ensuring public security adopts online and the off-line way of combining, it is characterized in that: mainly may further comprise the steps:
(1) judge that filter core is contaminated: filter core in daily product water process, produce that discharge reduces gradually and water-in and water-out pressure reduction greater than 0.1MPa, show that filter core is contaminated;
(2) online bactericide sterilization: with measuring pump non-oxide microbicide solution is added in security personnel's filter inleting pipe, continue 1 hour;
(3) online high pressure washing: the filter elevator pump frequency conversion frequency of will ensuring public security is heightened to 55Hz, improves hydraulic pressure to 0.5 ~ 0.6MPa, continues 40 minutes;
(4) the off-line soup soaks: filter core is put into the regeneration case, at first, injects sodium hydroxide solution and soaked 48 hours, during per 4 hours upset filter cores once; Wash filter core with demineralized water then, same up to leading towards the electricity of Xian Shui with former water, be and rinse well; Towards Xian Wanhou, in the regeneration case, injected the HCl solution soaking 48 hours again, same per 4 hours upset filter cores once and then wash filter core with demineralized water, up to lead towards the electricity of Xian Shui with former water with, be and rinse well; Inject the liquor natrii hypochloritis then and soaked 4 hours, clean up with demineralized water at last, In Shade drying can reuse; The volume of regeneration case is 1m
3
(5) regeneration back filter core is packed into subsequent usely in security personnel's filter, and earlier with non-oxidizable bactericide sterilization, it is identical that method and (2) goes on foot said method before using.
2. the method for security personnel's filter element regeneration according to claim 1, it is characterized in that: said non-oxide bactericide is a bromine analog derivative bactericide.
3. the method for security personnel's filter element regeneration according to claim 2, it is characterized in that: said bromine analog derivative bactericide is a SW655 film bactericide specially.
4. the method for security personnel's filter element regeneration according to claim 1, it is characterized in that: the concentration of said non-oxide microbicide solution is 200 ppm, consumption is 180 ~ 200L/h.
5. the method for security personnel's filter element regeneration according to claim 1; It is characterized in that: said liquor natrii hypochloritis is made into the solution that concentration is 5000ppm; Sodium hydroxide solution is made into the solution that concentration is 4000ppm, and hydrochloric acid is made into the solution that concentration is 7500ppm.
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| CN201210055020.XA CN102580537B (en) | 2012-03-05 | 2012-03-05 | Method for regenerating filter core of security filter |
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| CN201210055020.XA CN102580537B (en) | 2012-03-05 | 2012-03-05 | Method for regenerating filter core of security filter |
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| CN102580537A true CN102580537A (en) | 2012-07-18 |
| CN102580537B CN102580537B (en) | 2014-04-16 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108079668A (en) * | 2016-11-22 | 2018-05-29 | 东莞新科技术研究开发有限公司 | The cleaning method of filter screen |
| CN108786280A (en) * | 2018-06-13 | 2018-11-13 | 山西太钢不锈钢股份有限公司 | A kind of water treatment filter filter element cleaning system and cleaning method |
| CN109052830A (en) * | 2018-08-24 | 2018-12-21 | 盐城英贝吉环保科技有限公司 | Chemical engineering sewage filter device and its method for cleaning |
| CN109081506A (en) * | 2018-08-24 | 2018-12-25 | 盐城英贝吉环保科技有限公司 | A kind of chemical engineering sewage filter device and its method for cleaning |
| CN109304128A (en) * | 2017-07-26 | 2019-02-05 | 上海至纯洁净系统科技股份有限公司 | If the liquid medicine dosing system and its cleaning method of T-type liquid filter |
| CN110327784A (en) * | 2019-05-23 | 2019-10-15 | 岳阳林纸股份有限公司 | A kind of method for disinfection of cartridge filter and reverse osmosis membrane |
| CN111318086A (en) * | 2020-03-12 | 2020-06-23 | 山鹰国际控股股份公司 | Cleaning process of cartridge filter element |
| CN114307399A (en) * | 2021-12-31 | 2022-04-12 | 福建泉州闽光钢铁有限责任公司 | Method for cleaning filter element |
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| CN1843589A (en) * | 2006-03-20 | 2006-10-11 | 天津化工研究设计院 | Bactericide for reverse osmosis membrane and method for preparing the same |
| CN101138704A (en) * | 2007-06-12 | 2008-03-12 | 山西太钢不锈钢股份有限公司 | Processing method of filter-core of osmosis- reverse system |
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| CN1843589A (en) * | 2006-03-20 | 2006-10-11 | 天津化工研究设计院 | Bactericide for reverse osmosis membrane and method for preparing the same |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108079668A (en) * | 2016-11-22 | 2018-05-29 | 东莞新科技术研究开发有限公司 | The cleaning method of filter screen |
| CN109304128A (en) * | 2017-07-26 | 2019-02-05 | 上海至纯洁净系统科技股份有限公司 | If the liquid medicine dosing system and its cleaning method of T-type liquid filter |
| CN109304128B (en) * | 2017-07-26 | 2024-01-23 | 上海至纯洁净系统科技股份有限公司 | Liquid medicine preparation system with T-shaped liquid filter and cleaning method thereof |
| CN108786280A (en) * | 2018-06-13 | 2018-11-13 | 山西太钢不锈钢股份有限公司 | A kind of water treatment filter filter element cleaning system and cleaning method |
| CN109052830A (en) * | 2018-08-24 | 2018-12-21 | 盐城英贝吉环保科技有限公司 | Chemical engineering sewage filter device and its method for cleaning |
| CN109081506A (en) * | 2018-08-24 | 2018-12-25 | 盐城英贝吉环保科技有限公司 | A kind of chemical engineering sewage filter device and its method for cleaning |
| CN110327784A (en) * | 2019-05-23 | 2019-10-15 | 岳阳林纸股份有限公司 | A kind of method for disinfection of cartridge filter and reverse osmosis membrane |
| CN111318086A (en) * | 2020-03-12 | 2020-06-23 | 山鹰国际控股股份公司 | Cleaning process of cartridge filter element |
| CN114307399A (en) * | 2021-12-31 | 2022-04-12 | 福建泉州闽光钢铁有限责任公司 | Method for cleaning filter element |
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| CN102580537B (en) | 2014-04-16 |
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