CN101385940A - Control method of active carbon filter tank technique - Google Patents
Control method of active carbon filter tank technique Download PDFInfo
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- CN101385940A CN101385940A CNA200710121580XA CN200710121580A CN101385940A CN 101385940 A CN101385940 A CN 101385940A CN A200710121580X A CNA200710121580X A CN A200710121580XA CN 200710121580 A CN200710121580 A CN 200710121580A CN 101385940 A CN101385940 A CN 101385940A
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- carbon filter
- activated carbon
- active carbon
- control method
- filter tank
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Abstract
The invention provides a method for controlling an activated carbon filter pool technology. By using a spectrum scanning method and adopting an ultraviolet-visible light array photoreceptor and difference spectrum analyzing software, the filter efficiency of an activated carbon filter pool is judged, so as to determine the backwashing time of the activated carbon filter pool and judges whether activated carbon is effective by detecting, calculating, and comparing the content and the correlation parameters of an organic substance in the activated carbon filter pool, such as entry turbidity, effluent turbidity, chemical oxygen demand, biochemical oxygen demand, nitrate nitrogen, ultraviolet extinction value. Therefore, by adopting on-line monitor, the control method can exactly reflect the filter efficiency of the filter pool in time, can determine the backwashing time, and can judge whether activated carbon is noneffective, thus the treating cost are greatly lowered on the premise of ensuring effluent water quality.
Description
Technical field
The present invention relates to the plumbing process field, particularly relate to the method for a kind of control and optimization active carbon filter tank technique.
Background technology
At present, the backwashing period of activated carbon filter adopted 3-6 days usually, can only probably estimate by rule of thumb.But this definite method exists sizable problem.If backwashing period is long, this moment, active carbon lost efficacy, and then can influence effluent quality; On the contrary,, when active carbon can also satisfy the effluent quality requirement, just carry out backwash, processing cost is increased greatly, cause sizable waste if the cycle is too short.And whether lost efficacy about passing judgment on active carbon at present, the general method that adopts is to detect iodine number and methylene blue number, its detection of complex is loaded down with trivial details, and needs the regular hour.
Summary of the invention
In view of above problem, main purpose of the present invention is to provide a kind of control method of active carbon filter tank technique, and it adopts the online monitoring of spectral scan method, reduces processing cost greatly under the prerequisite that guarantees effluent quality.
For reaching above purpose, the control method of a kind of active carbon filter tank technique provided by the invention, it utilizes the spectral scan method, adopt the array photoreceptor and the difference spectrum analysis software of ultraviolet-visible light, content and relevant parameter by the entry of detection of active carbon filtering pool and delivery turbidity and COD (COD), biochemical oxygen demand (BOD) (BOD), nitre nitrogen, ultraviolet extinction value organic substances such as (UV254), through calculating and contrast, to judge the filter efficiency of activated carbon filter, determine its backwashing time and judge whether active carbon lost efficacy.
In sum, the control method of a kind of active carbon filter tank technique provided by the invention, it adopts online monitoring, can be in time and reflect the filter efficiency in filter tank exactly, determine backwashing time, pass judgment on active carbon and whether lost efficacy, under the prerequisite that guarantees effluent quality, reduce processing cost greatly.
The specific embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below the present invention is described in further detail with specific embodiments:
The present invention adopts the spectral scan method, adopt the array photoreceptor and the difference spectrum analysis software of ultraviolet-visible light, by detecting and contrast the content and the relevant parameter of activated carbon filter entry and delivery turbidity and COD (COD), biochemical oxygen demand (BOD) (BOD), nitre nitrogen, ultraviolet extinction value organic substances such as (UV254), through calculating and contrast, to judge the filter efficiency of activated carbon filter, determine its backwashing time and judge whether active carbon lost efficacy.
Effective detection wave-length coverage of the array photoreceptor of wherein said ultraviolet-visible light and difference spectrum analysis software is the 200-750 nanometer, this spectrum can clearly reflect the distribution of most of material in the water outlet, can measure: biochemical oxygen demand (BOD) (BOD), COD (COD), total organic carbon (TOC), dissolved organic carbon (DOC), ultraviolet extinction value (UV254), absorbance (SAC), nitre nitrogen, total suspended solid thing (TSS), turbidity (NTU/FTU), BTX (benzene, toluene, the dimethylbenzene general name), acid-base value (PH), electricity is led, dissolved oxygen, parameters such as oxidation-reduction potential, and form a curve of spectrum.
Specific embodiments is as follows: respectively settle a spectral instrument in entry place and water outlet place of activated carbon filter respectively, in the 200-750 nanometer wavelength range, different material can absorb the light of different wave length, will obtain the corresponding relation curve of an optical wavelength and uptake like this, the content that can reflect various materials from this curve, to before filtering and these two curves after the filter analyze contrast, calculate the efficient of filtration.When filter efficiency can not reach the water outlet requirement, just carry out backwash.In like manner, carry out backwash after, do not illustrate that active carbon lost efficacy if efficient still reaches requirement, need to change.
In addition, in software, different alert levels is set also, to take different measures at different removal efficient.
Below its summary of the invention has been done to elaborate.For persons skilled in the art, any conspicuous change of under the prerequisite that does not deviate from the principle of the invention it being done can not exceed the protection domain of the application's claims.
Claims (3)
1. the control method of an active carbon filter tank technique, it is characterized in that, utilize the spectral scan method, adopt the array photoreceptor and the difference spectrum analysis software of ultraviolet-visible light, by most of content of material and the relevant parameter in entry of detection of active carbon filtering pool and the water outlet, through calculating and contrast,, determine its backwashing time and judge whether active carbon lost efficacy again to judge the filter efficiency of activated carbon filter.
2. the control method of a kind of active carbon filter tank technique according to claim 1 is characterized in that, effective detection wave-length coverage of the array photoreceptor of described ultraviolet-visible light and difference spectrum analysis software is the 200-750 nanometer.
3. the control method of a kind of active carbon filter tank technique according to claim 1 is characterized in that, in the described difference spectrum analysis software, is provided with different alert levels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710121580XA CN101385940A (en) | 2007-09-10 | 2007-09-10 | Control method of active carbon filter tank technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710121580XA CN101385940A (en) | 2007-09-10 | 2007-09-10 | Control method of active carbon filter tank technique |
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| CN101385940A true CN101385940A (en) | 2009-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA200710121580XA Pending CN101385940A (en) | 2007-09-10 | 2007-09-10 | Control method of active carbon filter tank technique |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183473A (en) * | 2011-01-27 | 2011-09-14 | 霍尼韦尔综合科技(中国)有限公司 | Method for detecting liquid quality in liquid filtering system |
| CN110104720A (en) * | 2019-05-28 | 2019-08-09 | 艾西姆(辽宁)环境技术有限公司 | A kind of control method of landfill leachate macroporous resin adsorption treatment process |
| CN110510729A (en) * | 2019-08-14 | 2019-11-29 | 中国石油天然气集团有限公司 | Cleaning control method, system and corresponding moving bed biological filter tank reactor assembly |
| CN114057308A (en) * | 2020-08-10 | 2022-02-18 | 北京市自来水集团有限责任公司技术研究院 | Method for improving treatment effect of activated carbon filter and prolonging service life of activated carbon |
| CN114949960A (en) * | 2022-06-17 | 2022-08-30 | 北京金隅琉水环保科技有限公司 | Precision filter |
-
2007
- 2007-09-10 CN CNA200710121580XA patent/CN101385940A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183473A (en) * | 2011-01-27 | 2011-09-14 | 霍尼韦尔综合科技(中国)有限公司 | Method for detecting liquid quality in liquid filtering system |
| CN102183473B (en) * | 2011-01-27 | 2013-05-08 | 霍尼韦尔综合科技(中国)有限公司 | Method for detecting liquid quality in liquid filtering system |
| CN110104720A (en) * | 2019-05-28 | 2019-08-09 | 艾西姆(辽宁)环境技术有限公司 | A kind of control method of landfill leachate macroporous resin adsorption treatment process |
| CN110510729A (en) * | 2019-08-14 | 2019-11-29 | 中国石油天然气集团有限公司 | Cleaning control method, system and corresponding moving bed biological filter tank reactor assembly |
| CN114057308A (en) * | 2020-08-10 | 2022-02-18 | 北京市自来水集团有限责任公司技术研究院 | Method for improving treatment effect of activated carbon filter and prolonging service life of activated carbon |
| CN114057308B (en) * | 2020-08-10 | 2023-10-10 | 北京市自来水集团有限责任公司技术研究院 | Method for improving treatment effect of activated carbon filter tank and prolonging service life of activated carbon |
| CN114949960A (en) * | 2022-06-17 | 2022-08-30 | 北京金隅琉水环保科技有限公司 | Precision filter |
| CN114949960B (en) * | 2022-06-17 | 2023-01-24 | 北京金隅琉水环保科技有限公司 | Precision filter |
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Application publication date: 20090318 |