CN103076328B - The detection of membrane water-treating system biological pollutant and control method - Google Patents
The detection of membrane water-treating system biological pollutant and control method Download PDFInfo
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- CN103076328B CN103076328B CN201210592263.7A CN201210592263A CN103076328B CN 103076328 B CN103076328 B CN 103076328B CN 201210592263 A CN201210592263 A CN 201210592263A CN 103076328 B CN103076328 B CN 103076328B
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Abstract
Invention relates to detection and the control method of membrane water-treating system biological pollutant, specifically comprises the steps: 1) feedwater of extracting in a certain amount of membrane water-treating system notes in beaker, and adopt nephelometer immediately to measure water sample turbidity in beaker, be designated as N
0; 2) by step 1) beaker being marked with water sample that relates to proceeds to after darkroom leaves standstill a period of time, adopts step 1) nephelometer used measures beaker water sample turbidity again, is designated as N
t; 3) haze increase Δ N is calculated, i.e. Δ N=N
t-N
0, judge feedwater whether by biological pollution according to haze increase Δ N, method is: during Δ N < 1NTU, and the feedwater illustrating in membrane water-treating system does not have the danger of biological pollution, without the need to taking disinfectant measure; As haze increase Δ N>=1NTU, add biocide, until during haze increase Δ N < 1NTU.The present invention does not need complicated instrument, detects the biological pollutant degree of membrane water-treating system by measuring water turbidity, has easy and simple to handle, sensitive, the convenient feature controlling water supply safety.
Description
Technical field
The invention belongs to a kind of measuring method of biological pollution, be specifically related to a kind of detection and control method of membrane water-treating system biological pollutant.Belong to power generation industries sewerage disposing technical field.
Background technology
Membrane water-treating system, have that effluent quality is high, continuous seepage, easy to use, without soda acid, the advantage such as free from environmental pollution, floor area is little, economical operation, be a kind of water technology efficiently.Be widely used in the water treatment of the industries such as generating plant.But easily occur the phenomenon of microbial contamination in membrane water-treating system, cause water-carrying section to reduce, resistance to water-flow increases, and desalting efficiency declines, and is forced to adopt frequent chemical cleaning mode to remove biological pollution.In order to control microbial contamination, traditional method is total number of bacteria in the feedwater of monitoring membrane water-treating system, by adding biocide, total number of bacteria is controlled below a certain data, but, existing this measuring method, because the total number of bacteria condition determination in membrane water-treating system is complicated, therefore, implement quite difficulty, be difficult to apply in the industry.
Summary of the invention
The object of the invention is the problem cannot applied because of the total number of bacteria condition determination complexity in membrane water-treating system to solve existing assay method, a kind of detection and control method of membrane water-treating system biological pollutant are provided.The method does not need complicated instrument, easy and simple to handle, sensitive, easy to utilize.
Object of the present invention can be achieved through the following technical solutions:
The detection of membrane water-treating system biological pollutant and control method, specifically comprise the steps:
1) feedwater of extracting in a certain amount of membrane water-treating system is noted in beaker, adopts nephelometer immediately to measure water sample turbidity in beaker, is designated as N
0;
2) by step 1) beaker being marked with water sample that relates to proceeds to after darkroom leaves standstill a period of time, adopts step 1) nephelometer used measures beaker water sample turbidity again, is designated as N
t;
3) haze increase △ N is calculated, i.e. △ N=N
t-N
0, judge whether feedwater exists biological pollution danger, and method is according to haze increase △ N:
During △ N < 1NTU, the feedwater illustrating in membrane water-treating system does not have the danger of biological pollution, without the need to taking disinfectant measure; As haze increase △ N >=1NTU, add biocide, until during haze increase △ N < 1NTU, illustrate that reverse osmosis unit does not have the danger of biological pollution.
Object of the present invention can be achieved through the following technical solutions:
Further scheme of the present invention: carry out under room temperature is 25 DEG C of environment when measuring water sample turbidity.
Further scheme of the present invention: described nephelometer adopts photo-electric concentration of suspension meter, resolution≤0.1NTU.
The present invention is the situation causing water turbid based on biological pollutant, by measuring water turbidity, thus infers the content of biological pollutant; The biological pollutant of membrane water-treating system is the metabolic product of microorganism, dead skeleton of a corpse and other stick thing, with these pollutants occur, water turbidity must be caused to increase.Therefore, based on the method measuring turbidity, can easy, Sensitive Detection organism in water pollutant.
Beneficial effect of the present invention is as follows:
The present invention, owing to not needing complicated instrument, causes the water in membrane water-treating system to become muddy according to biological pollutant, thus detects the biological pollutant degree of membrane water-treating system by measuring water turbidity, therefore, have easy and simple to handle, sensitive feature.By the haze increase situation that detects, process of killing livestock can be instructed, there is the effective beneficial effect controlling biological pollution degree, make membrane water-treating system safe and highly efficient operation.
Embodiment
The present invention is further illustrated below.
Specific embodiment 1:
The step detecting organism in water pollutant is as follows:
Based on the situation that biological pollutant causes water turbid, by measuring water turbidity, thus infer the content of biological pollutant;
Step 1: the feedwater of getting 1000mL in the reverse osmosis unit of membrane water-treating system is loaded in beaker, adopts nephelometer to measure immediately to water turbidity N
0, test when room temperature is 25 DEG C;
Step 2: the beaker being marked with feedwater is proceeded to darkroom and leave standstill after 5 days, adopts nephelometer again to measure beaker to water turbidity N
t, test when room temperature is 25 DEG C;
Step 3: calculate haze increase △ N, i.e. △ N=N
t-N
0;
If △ N >=1NTU, adds biocide, total number of bacteria is controlled below a certain data, until during haze increase △ N < 1NTU, then illustrate that reverse osmosis unit does not have the danger of biological pollution.
Described turbidity counts photo-electric concentration of suspension meter, resolution≤0.1NTU.
The feedwater turbidity detection method that the present embodiment relates to, can adopt the water turbidity detecting instrument of routine techniques and method step to carry out.
Specific embodiment 2:
The step detecting organism in water pollutant is as follows:
Based on the situation that biological pollutant causes water turbid, by measuring water turbidity, thus infer the content of biological pollutant;
Step 1: the feedwater of getting 1000mL in the reverse osmosis unit of membrane water-treating system is loaded in beaker, adopts nephelometer to measure immediately to water turbidity N
0, test when room temperature is 25 DEG C;
Step 2: the beaker being marked with feedwater is proceeded to darkroom and leave standstill after 7 days, adopts nephelometer again to measure beaker to water turbidity N
t, test when room temperature is 25 DEG C;
Step 3: calculate haze increase △ N, i.e. △ N=N
t-N
0;
If △ N >=1NTU, adds biocide, total number of bacteria is controlled below a certain data, until during haze increase △ N < 1NTU, then illustrate that reverse osmosis unit does not have the danger of biological pollution.
Described turbidity counts photo-electric concentration of suspension meter, resolution≤0.1NTU.
Other specific embodiments:
The feature of other specific embodiments of the present invention is: the number of days in step 2, the beaker being marked with feedwater being proceeded to darkroom standing can be 3 days, 4 days, 6 days, 8 days, more than 9 days or 10 days, and calculate each haze increase, prove as △ N < 1NTU, feedwater is safe, during △ N >=1NTU, biocide must be added, total number of bacteria is controlled below a certain data, until during haze increase △ N < 1NTU, then illustrate that reverse osmosis unit does not have the danger of biological pollution.
Claims (3)
1. the detection of membrane water-treating system biological pollutant and control method, specifically comprise the steps:
1) feedwater of extracting in a certain amount of membrane water-treating system is noted in beaker, adopts nephelometer immediately to measure water sample turbidity in beaker, is designated as N
0;
2) by step 1) beaker being marked with water sample that relates to proceeds to after darkroom leaves standstill a period of time, adopts step 1) nephelometer used measures beaker water sample turbidity again, is designated as N
t;
3) haze increase Δ N is calculated, i.e. Δ N=N
t-N
0, judge whether feedwater exists biological pollution danger, and method is according to haze increase Δ N:
During Δ N < 1NTU, the feedwater illustrating in membrane water-treating system does not have the danger of biological pollution, without the need to taking disinfectant measure; As haze increase Δ N >=1NTU, add biocide, until during haze increase Δ N < 1NTU, illustrate that reverse osmosis unit does not have the danger of biological pollution.
2. the detection of membrane water-treating system biological pollutant according to claim 1 and control method, is characterized in that: carry out under room temperature is 25 DEG C of environment when measuring water sample turbidity.
3. the detection of a kind of membrane water-treating system biological pollutant according to claim 1 and 2 and control method, is characterized in that: described nephelometer adopts photo-electric concentration of suspension meter, resolution≤0.1NTU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210592263.7A CN103076328B (en) | 2012-12-31 | 2012-12-31 | The detection of membrane water-treating system biological pollutant and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210592263.7A CN103076328B (en) | 2012-12-31 | 2012-12-31 | The detection of membrane water-treating system biological pollutant and control method |
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| Publication Number | Publication Date |
|---|---|
| CN103076328A CN103076328A (en) | 2013-05-01 |
| CN103076328B true CN103076328B (en) | 2016-02-03 |
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| CN201210592263.7A Expired - Fee Related CN103076328B (en) | 2012-12-31 | 2012-12-31 | The detection of membrane water-treating system biological pollutant and control method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332125A (en) * | 2001-08-21 | 2002-01-23 | 天津开发区建硕实业发展有限公司 | Drinking water treating membrane system and drinking water preparing process |
| CN101164651A (en) * | 2007-08-15 | 2008-04-23 | 哈尔滨工业大学 | Water treatment coagulation precipitation dispensing control system |
| CN102236740A (en) * | 2010-04-26 | 2011-11-09 | 上海申丰检测有限公司 | Water quality detection and evaluation service method for drinking water |
| CN102834717A (en) * | 2010-04-07 | 2012-12-19 | 英派尔科技开发有限公司 | Detector for detecting contaminants in water or aqueous solutions |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS532944A (en) * | 1976-06-29 | 1978-01-12 | Ebara Infilco Co Ltd | Process for treating organic dirty water |
| JPS62163707A (en) * | 1986-01-13 | 1987-07-20 | Sasakura Eng Co Ltd | Method for preventing contamination of membrane module |
-
2012
- 2012-12-31 CN CN201210592263.7A patent/CN103076328B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332125A (en) * | 2001-08-21 | 2002-01-23 | 天津开发区建硕实业发展有限公司 | Drinking water treating membrane system and drinking water preparing process |
| CN101164651A (en) * | 2007-08-15 | 2008-04-23 | 哈尔滨工业大学 | Water treatment coagulation precipitation dispensing control system |
| CN102834717A (en) * | 2010-04-07 | 2012-12-19 | 英派尔科技开发有限公司 | Detector for detecting contaminants in water or aqueous solutions |
| CN102236740A (en) * | 2010-04-26 | 2011-11-09 | 上海申丰检测有限公司 | Water quality detection and evaluation service method for drinking water |
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| CN103076328A (en) | 2013-05-01 |
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