CN109272240A - A kind of classification variable weight drinking water quality on-line evaluation method based on efficiency coefficient method - Google Patents
A kind of classification variable weight drinking water quality on-line evaluation method based on efficiency coefficient method Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 71
- 238000001303 quality assessment method Methods 0.000 claims abstract description 29
- 238000013441 quality evaluation Methods 0.000 claims abstract description 18
- 230000036541 health Effects 0.000 claims abstract description 17
- 238000005259 measurement Methods 0.000 claims abstract description 4
- 230000001953 sensory effect Effects 0.000 claims description 7
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- 238000002474 experimental method Methods 0.000 claims description 6
- SBNFWQZLDJGRLK-UHFFFAOYSA-N phenothrin Chemical compound CC1(C)C(C=C(C)C)C1C(=O)OCC1=CC=CC(OC=2C=CC=CC=2)=C1 SBNFWQZLDJGRLK-UHFFFAOYSA-N 0.000 claims description 4
- 230000002110 toxicologic effect Effects 0.000 claims description 4
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- 229910002651 NO3 Inorganic materials 0.000 description 6
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000001988 toxicity Effects 0.000 description 3
- 231100000419 toxicity Toxicity 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 239000000090 biomarker Substances 0.000 description 1
- 235000020682 bottled natural mineral water Nutrition 0.000 description 1
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- 239000003814 drug Substances 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 230000003862 health status Effects 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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Abstract
The classification variable weight drinking water quality on-line evaluation method based on efficiency coefficient method that the invention discloses a kind of, it is characterized by comprising the following steps: classifying and determining the optimal limit value and most bad limit value of each factor to drinking water quality evaluation points in conjunction with drinking water national standard and professional standard；Actual measurement drinking water quality data are combined to carry out single-factor water quality assessment using efficiency coefficient method；Carry out Water Quality Evaluation in classification；Weight of the category in drinking water quality overall merit in this evaluation procedure is determined according to the water quality assessment factor of all categories number exceeded in upper a period of time；Overall merit is made to drinking water quality；Evaluation is provided to pipe network drinking water health degree.Advantage: considering the spatio-temporal distribution rule of drinking water quality monitoring, creative that efficiency coefficient method, sorting algorithm and variable weight algorithm synthesis work applied to water quality assessment.The blank in drinking water quality evaluation field is filled up.
Description
Technical field
The classification variable weight drinking water quality on-line evaluation method based on efficiency coefficient method that the present invention relates to a kind of, belongs to water quality
Assessment technique field.
Background technique
" urban-rural integration water supply " under the new situation, how to ensure urban and rural residents' drinking water safety, raising is drunk aquatic
It produces, transport and the management level sold have become an important problem.Drinking water quality appraisal is drinking water supervision
It is both " start-up procedure " and " end link " with the basis of management work.It is either right to carry out drinking water quality appraisal
Administrative department's ability of administration is highlighted still to be crucial masses user's public safety.
At this stage, Assessment of surface water quality method in China's is numerous, can be roughly divided into Deterministic Methods and uncertainty side
Method two major classes.But China almost belongs to blank for the research of drinking water quality evaluation method.Drinking water removes water environment
Intension, essence still belong to the range of medicine and public health security.So evaluation drinking water cannot simply apply surface water
The method of evaluation.The drinking water quality evaluation method for thering are a small number of scholars to propose, but lack about pipe network water supply spatial and temporal distributions angle
On thinking and discussion.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies of existing technologies, one kind is provided.
Exist in order to solve the above technical problems, the present invention provides a kind of classification variable weight drinking water quality based on efficiency coefficient method
Line assessment method, which comprises the steps of:
Step 1: classifying to drinking water quality evaluation points in conjunction with drinking water national standard and professional standard and it is each to determine
The optimal limit value of the factor and most bad limit value；
Step 2: use S line style as the evaluation line style of efficiency coefficient method, carried out in conjunction with actual measurement drinking water quality data single
Factor water quality assessment；
Step 3: carrying out Water Quality Evaluation in classification, and the water quality assessment Factor Weight in same category is equal；
Step 4: according to the water quality assessment factor of all categories, number exceeded in upper a period of time determines that this was evaluated
Weight of the category in drinking water quality overall merit in journey；
Step 5: in conjunction with Step 3: the result in four makes overall merit to drinking water quality；
Step 6: drinking water quality comprehensive evaluation result provides pipe network drinking water health degree and comments on comprehensive pipe network node
Valence.
Further, drinking water national standard and professional standard divide drinking water quality evaluation points in the step 1
For three categories, it is respectively as follows: micro-biology experiment, sensory properties and general chemical index and toxicologic index.
Further, in the step 2 efficiency coefficient method single pollution assessment method are as follows:
(1) single pollution assessment median x is calculated, and formula is as follows:
In formula: m is water quality assessment factor measured value；BOnIt is 0 for optimal limit value specified in national standard；BUnderFor country
Most bad limit value specified in standard.
(2) single pollution assessment score is calculated, and formula is as follows:
In formula: SWQI is single pollution assessment score.
Further, the method for the overall merit in the step 5 are as follows:
(1) overall merit score in the classification of the i-th major class is calculated first, and formula is as follows:
In formula: i is the sorted classification logotype of water quality factor, and j is the water quality factor mark in the i-th major class, CWQIiIt is
The overall merit score of i major class；niFor the water quality assessment factor number of the i-th major class；SWQI(i,j)For j-th of water quality of the i-th major class
Evaluation points score；
(2) secondly the weight coefficient of the i-th major class is calculated, formula is as follows:
In formula: WiFor the weight coefficient of the i-th major class；N is classification number；ELiFor in a upper period period of the i-th major class
All exceeded numbers of the water quality assessment factor；EL is all exceeded numbers of the water quality assessment factor in period period in all classes；
(3) drinking water quality comprehensive score is finally calculated, and formula is as follows:
In formula: WQI is drinking water quality comprehensive score.
Further, in the step 6 pipe network drinking water health degree calculation method are as follows:
H=0.6 × ho+0.3×hs+0.1×he
In formula: H is ductwork water quality health degree；ho、hs、heRespectively output water, secondary water-supply and Terminal water observe website
The mean value of Water Quality Evaluation score.
Further, the ductwork water quality health degree full marks 100 divide, at 60 points the above are up to standard, 80 points the above are outstanding,
60 points the following are unqualified, it is proposed that investigation ductwork water quality problem in time.
Advantageous effects of the invention:
The present invention provides a kind of the classification variable weight drinking water quality on-line evaluation method based on efficiency coefficient method, the evaluation
Method consider drinking water quality monitoring spatio-temporal distribution rule, it is creative by efficiency coefficient method, sorting algorithm and
Variable weight algorithm synthesis works applied to water quality assessment.At the same time, which introduces the concept of ductwork water quality health degree, relies on
Evaluation is provided to the health status of ductwork water quality totality in the comprehensive evaluation result of each level space nodes.This method evaluation procedure
The automation that height may be implemented, is highly suitable for water quality on-line evaluation and all evaluation results are the formats of hundred-mark system, just
In understanding and management.Under the background of " urban-rural integration water supply ", the present invention has filled up the blank in drinking water quality evaluation field.
Detailed description of the invention
Fig. 1 is the classification variable weight drinking water quality on-line evaluation method flow based on efficiency coefficient method that invention provides.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figure 1, a kind of classification variable weight drinking water quality on-line evaluation method based on efficiency coefficient method, feature exist
In including the following steps:
Step 1: in conjunction with national standard " standards for drinking water quality GB 5749-2006 ", " natural mineral water
GB8637-2008 " and professional standard " urban water supply water standard CJ/T 206-2005 " to drinking water quality evaluation points point
Class and the optimal limit value and most bad limit value for determining each factor；
Step 2: use S line style as the evaluation line style of efficiency coefficient method, carried out in conjunction with actual measurement drinking water quality data single
Factor water quality assessment；
Step 3: carrying out Water Quality Evaluation in classification, and the water quality assessment Factor Weight in same category is equal；
Step 4: according to the water quality assessment factor of all categories, number exceeded in upper a period of time determines that this was evaluated
Weight of the category in drinking water quality overall merit in journey；
Step 5: in conjunction with Step 3: the result in four makes overall merit to drinking water quality；
Step 6: drinking water quality comprehensive evaluation result calculates pipe network health degree, pipe network health degree on comprehensive pipe network node
Full marks 100 divide, at 60 points the above are up to standard, 80 points the above are outstanding, 60 points the following are unqualified, it is proposed that checks pipe network water in time
Geological Problems.
Drinking water quality evaluation points are divided into three categories by drinking water national standard and professional standard in the step 1,
It is respectively as follows: micro-biology experiment, sensory properties and general chemical index and toxicologic index.
The single pollution assessment method of efficiency coefficient method in the step 2 are as follows:
(1) single pollution assessment median x is calculated, and formula is as follows:
In formula: m is water quality assessment factor measured value；BOnIt is 0 for optimal limit value specified in national standard；BUnderFor country
Most bad limit value specified in standard.
(2) single pollution assessment score is calculated, and formula is as follows:
In formula: SWQI is single pollution assessment score.
The method of the overall merit are as follows:
(1) the overall merit score of the i-th major class is calculated first, and formula is as follows:
In formula: i is that (i refers specifically to drinking water national standard and industry mark to the sorted classification logotype of water quality factor
One kind in three categories that brigadier's drinking water quality evaluation points are divided into), j is the water quality factor mark in the i-th major class, CWQIi
For the overall merit score of the i-th major class；niFor the water quality assessment factor number of the i-th major class；SWQI(i,j)It is j-th of the i-th major class
Water quality assessment factor score；
(2) secondly the weight coefficient of the i-th major class is calculated, formula is as follows:
In formula: WiFor the weight coefficient of the i-th major class；N is classification number；ELiFor in a upper period period of the i-th major class
All exceeded numbers of the water quality assessment factor；EL is all exceeded numbers of the water quality assessment factor in period period in all classes；
(3) drinking water quality comprehensive score is finally calculated, and formula is as follows:
In formula: WQI is drinking water quality comprehensive score.
The calculation method of pipe network drinking water health degree in the step 6 are as follows:
H=0.6 × ho+0.3×hs+0.1×he
In formula: H is official website water quality health degree, and full marks are 100 points；ho、hs、heRespectively output water, secondary water-supply and end
The mean value of tip water observation website Water Quality Evaluation score.
Specific embodiment is as follows:
1. the water quality assessment factor is classified
Somewhere tap water supply company monthly test data in Soviet Union are used only in this example, and detection project is micro-biology experiment
(total coli group, chlorine residue, total plate count), sensory properties and general chemical index (turbidity, coloration, iron, manganese) and toxicity
It learns index (lead, mercury, nitrate)
2. the evaluation of individual event water quality factor is evaluated with classification
(1) individual event water quality factor is evaluated
The evaluation calculating process of individual event water quality factor for ease of description, the evaluation procedure for now choosing nitrate, which is used as, to be shown
Example.Nitrate measured value is 4mg/L, and the optimal limit value of nitrate is 0mg/L in water standard, and most column limit value is 10mg/L.Therefore nitre
Hydrochlorate single pollution assessment median are as follows:
Nitrate single pollution assessment score is calculated using formula (2):
It calculates separately to obtain each factor evaluation score: total coli group (100), chlorine residue (95.8), bacterium colony according to above-mentioned steps
Total (99.3), turbidity (92.4), coloration (15.9), iron (96.6), manganese (50), lead (88.1), mercury (73.1), nitrate
(73.1)。
(2) classification is evaluated
Classification evaluation is to weigh synthesis to single pollution assessment scores all in classification on the basis of single pollution assessment result,
This is by taking toxicologic index as an example:
Micro-biology experiment and sensory properties and general chemical index comprehensive evaluation score are respectively as follows: 98.4 and 63.7.
3. the determination of class weight
Weight of all categories determined that this chose the period according to all exceeded numbers of the factor of all categories in period in the upper period
A length of moon, therefore investigate all exceeded numbers of the factor of all categories in last month and be respectively as follows: micro-biology experiment 1 time；Sensory properties and one
As chemical index 2 times；Toxicity index 3 times.The calculating process of toxicity index class weight is chosen as example:
Biological indicator and sensory properties and the weight of general chemical index are respectively as follows: 0.25 and 0.33.
4. drinking water quality overall merit
Drinking water quality overall merit uses the mode of weighted sum of all categories, and the overall merit in case calculates such as
Under:
5. pipe network drinking water health degree calculates
Pipe network drinking water health degree is each spatial level water supply node (factory node, secondary water-supply node and frontier node
Point) scoring mean value weighting summation obtain, be computed in case dispatch from the factory node, secondary water-supply node and frontier node synthesis comment
The mean value divided is respectively as follows: 97.1,92.4,81.7.Pipe network drinking water health degree calculates as follows:
H=0.6 × ho+0.3×hs+0.1×he=0.6 × 97.1+0.3 × 92.4+0.1 × 81.7=94.2
From the point of view of evaluation result, this area's pipe network drinking water is more healthy, without obvious water quality security.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of classification variable weight drinking water quality on-line evaluation method based on efficiency coefficient method, which is characterized in that including as follows
Step:
Step 1: classify in conjunction with drinking water national standard and professional standard to drinking water quality evaluation points and determine each factor
Optimal limit value and most bad limit value；
Step 2: using S line style as the evaluation line style of efficiency coefficient method, carries out single-factor in conjunction with actual measurement drinking water quality data
Water quality assessment；
Step 3: carrying out Water Quality Evaluation in classification, and the water quality assessment Factor Weight in same category is equal；
Step 4: according to the water quality assessment factor of all categories, number exceeded in upper a period of time is determined in this evaluation procedure
Weight of the category in drinking water quality overall merit；
Step 5: in conjunction with Step 3: the result in four makes overall merit to drinking water quality；
Step 6: drinking water quality comprehensive evaluation result provides evaluation to pipe network drinking water health degree on comprehensive pipe network node.
2. the classification variable weight drinking water quality on-line evaluation method according to claim 1 based on efficiency coefficient method, special
Sign is that drinking water quality evaluation points are divided into three categories by drinking water national standard and professional standard in the step 1,
It is respectively as follows: micro-biology experiment, sensory properties and general chemical index and toxicologic index.
3. the classification variable weight drinking water quality on-line evaluation method according to claim 1 based on efficiency coefficient method, special
Sign is, the single pollution assessment method of efficiency coefficient method in the step 2 are as follows:
(1) single pollution assessment median x is calculated, and formula is as follows:
In formula: m is water quality assessment factor measured value；BOnIt is 0 for optimal limit value specified in national standard；BUnderFor national standard
Specified in most bad limit value.
(2) single pollution assessment score is calculated, and formula is as follows:
In formula: SWQI is single pollution assessment score.
4. the classification variable weight drinking water quality on-line evaluation method according to claim 1 based on efficiency coefficient method, special
Sign is, the method for the overall merit in the step 5 are as follows:
(1) overall merit score in the classification of the i-th major class is calculated first, and formula is as follows:
In formula: i is the sorted classification logotype of water quality factor, and j is the water quality factor mark in the i-th major class, CWQIiFor the i-th major class
Overall merit score；niFor the water quality assessment factor number of the i-th major class；SWQI(i,j)For j-th of water quality assessment of the i-th major class
Factor score；
(2) secondly the weight coefficient of the i-th major class is calculated, formula is as follows:
In formula: WiFor the weight coefficient of the i-th major class；N is classification number；ELiIt was all in a upper period period of the i-th major class
The exceeded number of the water quality assessment factor；EL is all exceeded numbers of the water quality assessment factor in period period in all classes；
(3) drinking water quality comprehensive score is finally calculated, and formula is as follows:
In formula: WQI is drinking water quality comprehensive score.
5. the classification variable weight drinking water quality on-line evaluation method according to claim 1 based on efficiency coefficient method, special
Sign is, the calculation method of pipe network drinking water health degree in the step 6 are as follows:
H=0.6 × ho+0.3×hs+0.1×he
In formula: H is ductwork water quality health degree；ho、hs、heRespectively output water, secondary water-supply and Terminal water observe website water quality
The mean value of overall merit score.
6. the classification variable weight drinking water quality on-line evaluation method according to claim 5 based on efficiency coefficient method, special
Sign is that the ductwork water quality health degree full marks 100 divide, at 60 points the above are up to standard, 80 points the above are outstanding, 60 points the following are
It is unqualified, it is proposed that investigation ductwork water quality problem in time.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111445104A (en) * | 2020-02-27 | 2020-07-24 | 上海交通大学 | Drinking water quality evaluation method based on multi-water quality evaluation index |
| CN114487332A (en) * | 2022-01-27 | 2022-05-13 | 重庆市生态环境监测中心 | Method, system, medium and equipment for evaluating operation effect of automatic surface water quality monitoring station |
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| CN1657935A (en) * | 2005-03-01 | 2005-08-24 | 徐祖信 | River single factor water quality mark index number evaluation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111445104A (en) * | 2020-02-27 | 2020-07-24 | 上海交通大学 | Drinking water quality evaluation method based on multi-water quality evaluation index |
| CN114487332A (en) * | 2022-01-27 | 2022-05-13 | 重庆市生态环境监测中心 | Method, system, medium and equipment for evaluating operation effect of automatic surface water quality monitoring station |
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