CN109886553A - A kind of water pollution load Equity Assessment and distribution method - Google Patents
A kind of water pollution load Equity Assessment and distribution method Download PDFInfo
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Abstract
The invention discloses a kind of water pollution load Equity Assessment and distribution method, include the following steps: to evaluate the blowdown status fairness of survey region using single-factor environment Gini Coefficient analysis；Total amount of pollutant reduction target and pollutant original allocation scheme are formulated according to evaluation result；It realizes that environment Gini coefficient minimizes based on Information Entropy, determines pollutant optimal distributing scheme.The present invention establishes a set of completely new totalizing method system, on the one hand it avoids and only economically considers that cost minimization causes the unfairness of distribution, on the other hand Environmental Equity theory is applied to conscientiously in pollutant distribution, fair allocat scheme is determined after the many-sided objective factor of comprehensive consideration, and the fair combination with efficiency is realized in water pollutant totalizing method.
Description
Technical field
The present invention relates to a kind of water pollution load Equity Assessment and distribution methods, belong to technical field of water pollution control.
Background technique
With Chinese society and economic development, environmental problem has become the bottleneck for restricting China's development.Water environment is environment
One of important composition element, pollute the most serious, the pollution situation very severe faced.Although China has taken a series of
Waterpollution control, but pollutant discharge amount is still very big, in gradually growth trend, Water Environment Pollution are not allowed to find pleasure in
It sees.
The basic reason of current water environment pollution is that water pollutant enters river discharge amount more than environmental capacity of water, causes to be discharged into water
The pollutant of body is considerably beyond water body self-purification ability.Administering and improving Water Environment Status quo most effective way is that progress pollutant is total
Amount control, i.e., the reasonable distribution water pollutant discharging gross amount between pollution sources carry out pollutant fluxes according to determining total amount target,
Improve water environment gradually.
Have multidigit scholar both at home and abroad about total pollutant emission allocation to have made intensive studies, but in terms of current implementation result
All there is a problem of that different degrees of to make especially base's environmental protection mechanism, environmentally friendly mechanism suffer from no a set of rationally effective water dirty
It contaminates object totalizing method system and is difficult to carry out water pollutant fair effective distribution, and then influence water environment treatment target
It realizes.Therefore it is extremely urgent to establish a set of effective water pollutant totalizing method scheme.
Summary of the invention
The purpose of the present invention is to provide a kind of water pollution load Equity Assessment and distribution methods, to solve the prior art
Present in above-mentioned whole one of defects or defect.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of water pollution load Equity Assessment and distribution method, include the following steps:
It is evaluated using blowdown status fairness of the single-factor environment Gini Coefficient analysis to survey region；
Total amount of pollutant reduction target and pollutant original allocation scheme are formulated according to evaluation result；
It realizes that environment Gini coefficient minimizes based on Information Entropy, determines pollutant optimal distributing scheme.
Further, it is described evaluation blowdown status fairness method the following steps are included:
The pollutant status of each pollutant allocation unit in collection research region enters river discharge amount data；
Determine environment Gini coefficient evaluation index；
Collect the data of evaluation index in each pollutant allocation unit；
The pollutant status that pollutant allocation unit is carried by unit evaluation index is entered into river discharge amount sort ascending, point
The accumulative percentage that the cumulative percentage of evaluation index and pollutant status in each pollutant allocation unit enter river discharge amount is not calculated
Than calculating the environment Geordie system that the pollutant status based on evaluation index enters river discharge amount according to calculated cumulative percentage
Number, calculation formula are as follows:
In formula (1), i is pollutant allocation unit；M is the number of pollutant allocation unit i；J is that environment Gini coefficient is commented
Valence index；G0(j) enter the environment Gini coefficient of river discharge amount for the pollutant status based on evaluation index j；XjIt (i) is pollutant
The cumulative percentage of evaluation index j in allocation unit i；XjIt (i-1) is the accumulative of evaluation index j in pollutant allocation unit i-1
Percentage；Y0j(i) enter the accumulative percentage of river discharge amount for the pollutant status based on evaluation index j in pollutant allocation unit i
Than；Y0j(i-1) enter the accumulative percentage of river discharge amount for the pollutant status based on evaluation index j in pollutant allocation unit i-1
Than；When i=1, Xj(i-1)=0, Y0j(i-1)=0；
Fairness analysis is carried out to pollutant emission status according to the zone of reasonableness of the environment Gini coefficient defined, if meter
The obtained pollutant status based on evaluation index enters the environment Gini coefficient of river discharge amount in the reasonable scope, then is based on commenting
The pollutant status of valence index discharges equilibrium, conversely, then there is unfair factor, need to optimize distribution.
Further, the evaluation index includes population, GDP and land area.
Further, the zone of reasonableness of the environment Gini coefficient is defined as 0~0.4.
Further, the total amount of pollutant reduction target and the formulating method of pollutant original allocation scheme include as follows
Step:
1) pollutant status always enters river discharge amount in statistical research region；
2) using the environmental capacity of water of trial-and-error method estimation survey region；
3) according to the calculation of water environmental capacity total amount of pollutant reduction rate of estimation, specific formula for calculation is as follows；
In formula (2), q is total amount of pollutant reduction rate；Always enter river discharge for pollutant status in survey region
Amount；M is the environmental capacity of water of survey region；
4) according to the total amount of pollutant reduction rate of calculating, the pollutant of pollutant allocation unit each in survey region is carried out
Equal proportion cuts down distribution, obtains pollutant original allocation scheme.
Further, the evaluation method of the environmental capacity of water includes the following steps: under certain design discharge, with building
Vertical Water Environment Mathematical Model carries out simulation of water quality, the pollutant discharge amount of each section is constantly regulate, until approaching control section
Water quality objective, pollutant discharge amount at this time is the environmental capacity of water of the section.
Further, the Water Environment Mathematical Model is Mike11, WASP model.
Further, the determination method of the pollutant optimal distributing scheme includes the following steps:
1) weight of environment Gini coefficient evaluation index is calculated using Information Entropy, calculation formula is as follows:
In formula (3), W0(i) enter river discharge amount for the pollutant status in each pollutant allocation unit i；ZijFor each pollutant
The value of evaluation index j in allocation unit i；YijUnit pollutant status for evaluation index j in each pollutant allocation unit i enters river
Discharge amount；In formula (4), NijIt is the evaluation index j value in pollutant allocation unit i each under evaluation index j in evaluation index j
Proportion；In formula (5), EjEnter the comentropy of river discharge amount for evaluation index j unit pollutant status；In formula (6), VjFor ring
The weight of border Gini coefficient evaluation index j；N is the number of environment Gini coefficient evaluation index j；
2) according to calculated weight, the environment Gini coefficient and most of river discharge amount is entered with the pollutant based on evaluation index
Small is objective function, is optimized under constraint condition, the pollutant status based on evaluation index after being optimized enters
The pollution of the environment Gini coefficient of river discharge amount, the pollutant fluxes rate of each pollutant allocation unit and each pollutant allocation unit
Object reduction, final to determine that pollutant optimal distributing scheme, specific formula for calculation are as follows:
Objective function:
S.t.:
Total amount cuts down constraint:
Environment Gini coefficient constraint after each evaluation index optimization: Gj≤G0(j) (12)
Each pollutant allocation unit cuts down ratio constraint: Wi=(1-Pi)W0(i) (13)
Pi0≤Pi≤Pi1 (14)
Each pollutant allocation unit ordering constraint:
kj(i-1)≤Kj(i)≤Kj(i+1) (16)
In formula (7), GjEnter the environment Gini coefficient of river discharge amount for the pollutant based on evaluation index j after optimization；Formula
(8) in, Yj(i) enter the accumulative percentage of river discharge amount for the pollutant based on evaluation index j in pollutant allocation unit i after optimization
Than；Yj(i-1) enter accumulative the hundred of river discharge amount for the pollutant based on evaluation index j in pollutant allocation unit i-1 after optimization
Divide ratio；In formula (9), MjIt (i) is evaluation index j value in each pollutant allocation unit i,Respectively to be polluted in survey region
The summation of evaluation index j value in object allocation unit i；In formula (10), WiFor the pollutant in each pollutant allocation unit i after optimization
Enter river discharge amount,Enter river discharge amount summation for the pollutant in each pollutant allocation unit i after optimization；In formula (13), Pi
For the pollutant fluxes rate of each pollutant allocation unit i after optimization；In formula (14), Pi0For the reduction of each pollutant allocation unit i
Rate lower limit, Pi1For the reduction rate upper limit of each pollutant allocation unit i；In formula (15), KjIt (i) is pollutant allocation unit after optimization
The unit pollutant of evaluation index j enters river discharge amount in i；In formula (16), KjIt (i-1) is pollutant allocation unit i-1 after optimization
The unit pollutant of middle evaluation index j enters river discharge amount；KjIt (i+1) is evaluation index j in pollutant allocation unit i+1 after optimization
Unit pollutant enter river discharge amount.
Compared with prior art, the invention has the following advantages that
Method of the invention establishes a set of completely new totalizing method system, on the one hand avoids and only economically considers
Cost minimization causes the unfairness of distribution, on the other hand Environmental Equity theory is applied to conscientiously in pollutant distribution, complete
Face considers many-sided visitor such as pollution situation, physical geography condition, Economic Development Status, population society of each pollutant allocation unit
Fair allocat scheme is determined after sight factor, and the fair combination with efficiency is realized in water pollutant totalizing method.
Detailed description of the invention
Fig. 1 is the water pollution load Equity Assessment of the embodiment of the present invention and the flow diagram of distribution method.
Specific embodiment
The invention will be further described combined with specific embodiments below.Following embodiment is only used for clearly illustrating
Technical solution of the present invention, and not intended to limit the protection scope of the present invention.
As shown in Figure 1, a kind of water pollution load Equity Assessment and distribution method, include the following steps:
1, it is evaluated using blowdown status fairness of the single-factor environment Gini Coefficient analysis to survey region:
1) the pollutant status of each pollutant allocation unit in collection research region enters river discharge amount data, wherein each pollutant
Allocation unit is denoted as i, and the pollutant status of each pollutant allocation unit enters river discharge amount and is denoted as W0(i)；
2) it determines environment Gini coefficient evaluation index, is denoted as j；
3) data for collecting evaluation index j in each pollutant allocation unit i, are denoted as Mj (i)；
4) pollutant allocation unit i is entered into river discharge amount by the pollutant status that unit evaluation index j is carried and is incremented by row
Sequence, the cumulative percentage and pollutant status for calculating separately evaluation index j in each pollutant allocation unit i enter the tired of river discharge amount
Percentage is counted, the environment Geordie that the pollutant status based on evaluation index j enters river discharge amount is then calculated according to following formula (1)
Coefficient is denoted as G0(j):
In formula (1), i is pollutant allocation unit；M is the number of pollutant allocation unit i；J is that environment Gini coefficient is commented
Valence index；G0(j) enter the environment Gini coefficient of river discharge amount for the pollutant status based on evaluation index j；XjIt (i) is pollutant
The cumulative percentage of evaluation index j in allocation unit i；XjIt (i-1) is the accumulative of evaluation index j in pollutant allocation unit i-1
Percentage；Y0j(i) enter the accumulative percentage of river discharge amount for the pollutant status based on evaluation index j in pollutant allocation unit i
Than；Y0j(i-1) enter the accumulative percentage of river discharge amount for the pollutant status based on evaluation index j in pollutant allocation unit i-1
Than；When i=1, Xj(i-1)=0, Y0j(i-1)=0；
5) according to the zone of reasonableness of environment Gini coefficient defined to the pollutant emission status based on evaluation index j into
Row fairness analysis, if G0(j) in the reasonable scope, then the pollutant status based on evaluation index j discharges equilibrium, conversely, then
There are unfair factors, need to optimize distribution.
Wherein, environment Gini coefficient zone of reasonableness defines generally 0~0.2, it is contemplated that Water Resources Allocation structure, population point
Cloth situation, geographic space distribution and production value distribution situation etc. influence, and environment Gini coefficient range can be as the case may be
It is expanded to the 0~0.4 of economics concept identification.
2, total amount of pollutant reduction target and pollutant original allocation scheme are formulated according to evaluation result:
1) pollutant status always enters river discharge amount in statistical research region, is denoted as
2) using the environmental capacity of water of trial-and-error method estimation survey region, it is denoted as M；Wherein, the evaluation method of environmental capacity of water
Are as follows: under certain design discharge, simulation of water quality is carried out with the Water Environment Mathematical Model established, constantly regulate the dirt of each section
Contaminate object discharge amount, the water quality objective until approaching control section, pollutant discharge amount at this time is that this receives the water ring of dirty section
Border capacity；
3) according to the calculation of water environmental capacity total amount of pollutant reduction rate of estimation, it is denoted as q, calculation formula is as follows:
4) according to total amount of pollutant reduction rate calculated, to the pollutant of pollutant allocation unit each in survey region into
Row equal proportion cuts down distribution, obtains pollutant original allocation scheme.
3, it realizes that environment Gini coefficient minimizes based on Information Entropy, determines pollutant optimal distributing scheme:
1) weight of environment Gini coefficient evaluation index is calculated using Information Entropy, specific formula for calculation is as follows:
In formula (3), W0(i) enter river discharge amount for the pollutant status in each pollutant allocation unit i；ZijFor each pollutant
The value of evaluation index j in allocation unit i；YijUnit pollutant status for evaluation index j in each pollutant allocation unit i enters river
Discharge amount；In formula (4), NijIt is the evaluation index j value in pollutant allocation unit i each under evaluation index j in evaluation index j
Middle proportion；In formula (5), EjEnter the comentropy of river discharge amount for evaluation index j unit pollutant status；In formula (6), VjFor
The weight of environment Gini coefficient evaluation index j；N is the number of environment Gini coefficient evaluation index j；
2) according to calculated weight, with the pollutant based on evaluation index j enter river discharge amount environment Gini coefficient and
Minimum objective function optimizes under constraint condition, and the pollutant based on evaluation index j after being optimized enters river
The environment Gini coefficient G of discharge amountj, each pollutant allocation unit i pollutant fluxes rate PiWith each pollutant allocation unit i's
Pollutant fluxes amount Hi, it is final to determine that pollutant optimal distributing scheme, specific formula for calculation are as follows:
Objective function:
S.t.:
Total amount cuts down constraint:
Environment Gini coefficient constraint after each evaluation index optimization: Gj≤G0(j) (12)
Each pollutant allocation unit cuts down ratio constraint: Wi=(1-Pi)W0(i) (13)
Pi0≤Pi≤Pi1 (14)
Each pollutant allocation unit ordering constraint:
Kj(i-1)≤Kj(i)≤Kj(i+1) (16)
In formula (7), GjEnter the environment Gini coefficient of river discharge amount for the pollutant based on evaluation index j after optimization；Formula
(8) in, Yj(i) enter the accumulative percentage of river discharge amount for the pollutant based on evaluation index j in pollutant allocation unit i after optimization
Than；Yj(i-1) enter accumulative the hundred of river discharge amount for the pollutant based on evaluation index j in pollutant allocation unit i-1 after optimization
Divide ratio；In formula (9), MjIt (i) is evaluation index j value in each pollutant allocation unit i,Respectively to be polluted in survey region
The summation of evaluation index j value in object allocation unit i；In formula (10), WiFor the pollutant in each pollutant allocation unit i after optimization
Enter river discharge amount,Enter river discharge amount summation for the pollutant in each pollutant allocation unit i after optimization；In formula (13), Pi
For the pollutant fluxes rate of each pollutant allocation unit i after optimization；In formula (14), Pi0For the reduction of each pollutant allocation unit i
Rate lower limit, Pi1For the reduction rate upper limit of each pollutant allocation unit i；In formula (15), KjIt (i) is pollutant allocation unit after optimization
The unit pollutant of evaluation index j enters river discharge amount in i；In formula (16), KjIt (i-1) is pollutant allocation unit i-1 after optimization
The unit pollutant of middle evaluation index j enters river discharge amount；KjIt (i+1) is evaluation index j in pollutant allocation unit i+1 after optimization
Unit pollutant enter river discharge amount.
It wherein, can be using tools such as Microsoft Excel or Matlab when planning equation solution middle to the step (2)
Software solves.
Below by taking survey region A as an example, specific implementation step of the invention is illustrated:
1, it is evaluated using blowdown status fairness of the single-factor environment Gini Coefficient analysis to survey region:
1) the pollutant status of each pollutant allocation unit in collection research region enters river discharge amount data, and data are shown in Table 1.
Table 1
| Pollutant allocation unit i | Pollutant status enters river discharge amount W0(i) (ton) |
| Allocation unit 1 | 3175.12 |
| Allocation unit 2 | 5130.84 |
| Allocation unit 3 | 5751.16 |
| Allocation unit 4 | 5027.88 |
| Allocation unit 5 | 4855.28 |
| Allocation unit 6 | 5660.59 |
| Allocation unit 7 | 10011.09 |
| Allocation unit 8 | 9862.37 |
| Allocation unit 9 | 16622.52 |
| Allocation unit 10 | 9013.70 |
| Allocation unit 11 | 3619.55 |
| Allocation unit 12 | 2907.76 |
| Allocation unit 13 | 3521.58 |
| Allocation unit 14 | 11972.42 |
| Allocation unit 15 | 4858.20 |
| Allocation unit 16 | 17556.55 |
| Allocation unit 17 | 3135.71 |
| Allocation unit 18 | 3711.87 |
2) environment Gini coefficient evaluation index j is determined
Selected environment Gini coefficient evaluation index should preferably reflecting regional society, economy and natural quality, with water
Environmental pollution is closely related, can quantify and can get accurate data, chosen in the present embodiment population, GDP, land area three comment
Valence index.
3) data of evaluation index j value in each pollutant allocation unit i are collected, data are shown in Table 2.
Table 2
| Pollutant allocation unit i | Land area (hectare) | Population (ten thousand people) | GDP (hundred million yuan) |
| Allocation unit 1 | 1450.00 | 65.08 | 102.43 |
| Allocation unit 2 | 478.50 | 31.99 | 117.23 |
| Allocation unit 3 | 1035.50 | 34.46 | 153.58 |
| Allocation unit 4 | 478.00 | 31.25 | 101.16 |
| Allocation unit 5 | 441.51 | 16.80 | 29.53 |
| Allocation unit 6 | 10.01 | 41.26 | 55.06 |
| Allocation unit 7 | 27.86 | 61.28 | 35.97 |
| Allocation unit 8 | 40.00 | 66.28 | 39.80 |
| Allocation unit 9 | 40.00 | 72.05 | 44.77 |
| Allocation unit 10 | 21.31 | 55.55 | 37.15 |
| Allocation unit 11 | 1590.22 | 79.97 | 102.47 |
| Allocation unit 12 | 387.84 | 37.32 | 85.24 |
| Allocation unit 13 | 1414.90 | 51.09 | 92.54 |
| Allocation unit 14 | 40.64 | 78.70 | 41.85 |
| Allocation unit 15 | 1031.00 | 36.15 | 80.61 |
| Allocation unit 16 | 790.20 | 47.59 | 1052.94 |
| Allocation unit 17 | 1574.00 | 80.78 | 118.18 |
| Allocation unit 18 | 570.80 | 30.63 | 123.32 |
4) pollutant allocation unit i is entered into river discharge amount sort ascending by the pollutant status that each index j of unit is carried,
The cumulative percentage and pollutant status for calculating separately each index j in each pollutant allocation unit i enter accumulative the hundred of river discharge amount
Divide ratio, the environment Gini coefficient that the pollutant status based on each index j enters river discharge amount then calculated according to following formula (1):
Calculated result such as 3~table of table 6.
Table 3
Table 4
Table 5
Table 6
| Environment Gini coefficient evaluation index j | Pollutant status based on index j enters river discharge amount environment Gini coefficient G0(j) |
| Population | 0.3108 |
| Land area | 0.7010 |
| GDP | 0.5303 |
5) it is defined according to the zone of reasonableness of environment Gini coefficient and public affairs is carried out to the pollutant emission status based on evaluation index j
Levelling analysis, if G0(j) in the reasonable scope, then the pollutant status based on evaluation index j discharges equilibrium, conversely, then existing
Unfair factor need to optimize distribution.
Environment Gini coefficient zone of reasonableness is defined as 0~0.4 in this implementation, and the pollutant status based on population enters river discharge
Measuring environment Gini coefficient is 0.3108, the pollutant status discharge in the zone of reasonableness of environment Gini coefficient, i.e., based on population
It is balanced；Enter river discharge amount environment Gini coefficient based on land area pollutant status to be 0.7010, enter based on GDP pollutant status
River discharge amount environment Gini coefficient is 0.5303, exceeds environment Gini coefficient zone of reasonableness, i.e., based on land area and GDP
The discharge of pollutant status is unbalanced, and there are unjust phenomenons, need to optimize distribution.
2, total amount of pollutant reduction target and pollutant original allocation scheme are formulated:
1) statistical research regional pollution object status always enters river discharge amount data
Enter river discharge amount data according to the pollutant status of each pollutant allocation unit of collection, survey region dirt can be obtained
It is 126394.19 tons that dye object status, which always enters river discharge amount,.
2) using the environmental capacity of water of trial-and-error method estimation survey region
Under certain design discharge, simulation of water quality is carried out with the Water Environment Mathematical Model established, constantly regulate section
Pollutant discharge amount, the water quality objective until approaching control section, obtaining the environmental capacity of water for receiving dirty section is
113754.771 ton.
3) according to the calculation of water environmental capacity total amount of pollutant reduction rate estimated, calculation formula is as follows:
It is 10% that the total reduction rate of pollutant, which is calculated,.
4) according to total amount of pollutant reduction rate calculated, to the pollutant of pollutant allocation unit each in survey region into
Row equal proportion cuts down distribution, obtains pollutant original allocation scheme, as shown in table 7:
Table 7
3, it realizes that environment Gini coefficient minimizes based on Information Entropy, determines pollutant optimal distributing scheme:
1) weight of environment Gini coefficient evaluation index is determined using Information Entropy, specific formula for calculation is as follows:
Calculated result such as table 8:
Table 8
| Environment Gini coefficient evaluation index j | The weight Vj of evaluation index j |
| Population | 0.201 |
| Land area | 0.455 |
| GDP | 0.344 |
2) with the pollutant based on evaluation index j enter river discharge amount environment Gini coefficient and minimum objective function,
It is optimized under constraint condition, the pollutant based on evaluation index j after being optimized enters the environment Geordie of river discharge amount
Coefficient Gj, each pollutant allocation unit i pollutant fluxes rate Pi, each pollutant allocation unit i pollutant fluxes amount Hi, most
Determine that pollutant optimal distributing scheme, specific formula for calculation are as follows eventually:
Objective function:
S.t.:
Total amount cuts down constraint:
Environment Gini coefficient constraint after each evaluation index optimization: Gj≤G0(j) (12)
Each pollutant allocation unit cuts down ratio constraint: Wi=(1-Pj)W0(i) (13)
Pi0≤Pi≤Pi1 (14)
Each pollutant allocation unit ordering constraint:
Kj(i-1)≤Kj(i)≤Kj(i+1) (16)
Calculated result such as 9~table of table 10:
Table 9
Table 10
| Pollutant allocation unit i | Pollutant fluxes rate Pi(%) | Pollutant fluxes amount Hi(ton) |
| Allocation unit 1 | 1.00 | 31.75 |
| Allocation unit 2 | 14.21 | 729.13 |
| Allocation unit 3 | 1.00 | 57.51 |
| Allocation unit 4 | 14.48 | 727.99 |
| Allocation unit 5 | 16.35 | 793.87 |
| Allocation unit 6 | 5.22 | 295.76 |
| Allocation unit 7 | 15.77 | 1579.17 |
| Allocation unit 8 | 12.62 | 1244.31 |
| Allocation unit 9 | 20.00 | 3324.50 |
| Allocation unit 10 | 15.2 | 1370.21 |
| Allocation unit 11 | 1.00 | 36.2 |
| Allocation unit 12 | 8.97 | 260.90 |
| Allocation unit 13 | 1.33 | 46.83 |
| Allocation unit 14 | 14.53 | 1739.45 |
| Allocation unit 15 | 3.25 | 157.79 |
| Allocation unit 16 | 1.00 | 175.57 |
| Allocation unit 17 | 1.00 | 31.36 |
| Allocation unit 18 | 1.00 | 37.12 |
The present invention is disclosed with preferred embodiment above, so it is not intended to limiting the invention, all to take equivalent replacement
Or the scheme technical solution obtained of equivalent transformation, it falls within the scope of protection of the present invention.
Claims (8)
1. a kind of water pollution load Equity Assessment and distribution method, which comprises the steps of:
It is evaluated using blowdown status fairness of the single-factor environment Gini Coefficient analysis to survey region；
Total amount of pollutant reduction target and pollutant original allocation scheme are formulated according to evaluation result；
It realizes that environment Gini coefficient minimizes based on Information Entropy, determines pollutant optimal distributing scheme.
2. water pollution load Equity Assessment according to claim 1 and distribution method, which is characterized in that the evaluation
The method of blowdown status fairness the following steps are included:
The pollutant status of each pollutant allocation unit in collection research region enters river discharge amount data；
Determine environment Gini coefficient evaluation index；
Collect the data of evaluation index in each pollutant allocation unit；
The pollutant status that pollutant allocation unit is carried by unit evaluation index is entered into river discharge amount sort ascending, is counted respectively
Calculate the cumulative percentage that the cumulative percentage of evaluation index and pollutant status in each pollutant allocation unit enter river discharge amount, root
The environment Gini coefficient that the pollutant status based on evaluation index enters river discharge amount is calculated according to calculated cumulative percentage:
Fairness analysis is carried out to pollutant emission status according to the zone of reasonableness of the environment Gini coefficient defined, if calculating
To the pollutant status based on evaluation index enter the environment Gini coefficient of river discharge amount in the reasonable scope, then referred to based on evaluation
The discharge of target pollutant status is balanced, conversely, then there is unfair factor, need to optimize distribution.
3. water pollution load Equity Assessment according to claim 2 and distribution method, which is characterized in that the evaluation
Index includes population, GDP and land area.
4. water pollution load Equity Assessment according to claim 3 and distribution method, which is characterized in that the environment
The zone of reasonableness of Gini coefficient is defined as 0 ~ 0.4.
5. water pollution load Equity Assessment according to claim 2 and distribution method, which is characterized in that the pollution
Object total amount reduction target and the formulating method of pollutant original allocation scheme include the following steps:
1) pollutant status always enters river discharge amount in statistical research region；
2) using the environmental capacity of water of trial-and-error method estimation survey region；
3) according to the calculation of water environmental capacity total amount of pollutant reduction rate of estimation；
4) according to the total amount of pollutant reduction rate of calculating, ratio is carried out etc. to the pollutant of pollutant allocation unit each in survey region
Example cuts down distribution, obtains pollutant original allocation scheme.
6. water pollution load Equity Assessment according to claim 5 and distribution method, which is characterized in that the water ring
The evaluation method of border capacity specifically: under certain design discharge, simulation of water quality is carried out with the Water Environment Mathematical Model of foundation,
The pollutant discharge amount for constantly regulate each section, the water quality objective until approaching control section, pollutant discharge amount at this time are
For the environmental capacity of water of the section.
7. water pollution load Equity Assessment according to claim 6 and distribution method, which is characterized in that the water ring
Border mathematical model is Mike11, WASP model.
8. water pollution load Equity Assessment according to claim 5 and distribution method, which is characterized in that the pollution
The determination method of object optimal distributing scheme includes the following steps:
1) weight of environment Gini coefficient evaluation index is calculated using Information Entropy；
2) according to calculated weight, the environment Gini coefficient of river discharge amount and minimum is entered with the pollutant based on evaluation index
Objective function optimizes under constraint condition, and the pollutant based on evaluation index after being optimized enters river discharge amount
Environment Gini coefficient, the pollutant fluxes rate of each pollutant allocation unit and each pollutant allocation unit pollutant fluxes
Amount, it is final to determine pollutant optimal distributing scheme.
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|---|---|---|---|---|
| CN111382951A (en) * | 2020-03-19 | 2020-07-07 | 河南农业大学 | Distribution method for urban air quality improvement target |
| CN113153229A (en) * | 2021-04-23 | 2021-07-23 | 河北工业大学 | Method and device for screening green development scheme of shale gas |
| CN113204878A (en) * | 2021-05-07 | 2021-08-03 | 辽宁省生态环境保护科技中心 | Pollution source pollution discharge permission amount distribution method based on environment capacity |
-
2019
- 2019-01-24 CN CN201910067020.3A patent/CN109886553A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111382951A (en) * | 2020-03-19 | 2020-07-07 | 河南农业大学 | Distribution method for urban air quality improvement target |
| CN111382951B (en) * | 2020-03-19 | 2021-08-10 | 河南农业大学 | Distribution method for urban air quality improvement target |
| CN113153229A (en) * | 2021-04-23 | 2021-07-23 | 河北工业大学 | Method and device for screening green development scheme of shale gas |
| CN113204878A (en) * | 2021-05-07 | 2021-08-03 | 辽宁省生态环境保护科技中心 | Pollution source pollution discharge permission amount distribution method based on environment capacity |
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