CN106202950B - Method is determined based on the pollution sources blowdown license limit value of water quality reaching standard - Google Patents
Method is determined based on the pollution sources blowdown license limit value of water quality reaching standard Download PDFInfo
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Abstract
A kind of pollution sources blowdown license limit value based on water quality reaching standard determines method, comprising: step 1, data preparation, including at least hydrographic data, water quality data and the Pollution Source Monitoring data for collecting basin；Step 2, the pollution sources in the basin and production row's relationship of sewage draining exit are established；Step 3, the sewage draining exit in the basin and the pressure response relationship of water quality section are established；Step 4: combining step 2 and step 3 establish as a result, establishing the pressure response relationship between the pollution sources in the basin and water quality section；Step 5: calculating the pollution sources totalizing method scheme based on water quality reaching standard, the pollution sources for obtaining the basin are allowing the average allowable emission in the average phase；Step 6: the discharge of pollutant sources limit value that the average allowable emission is converted into different time scales is permitted into limit value using the blowdown as different time scales.The present invention considers the various aspects factors such as quality in watershed requirement, formulates the emission limit of different time scales, can preferably meet the requirement of pollutant discharging license management.
Description
Technical field
The invention belongs to water environment protection and environmental management technical field more particularly to basin pollutant discharging license administrative skills
Field.
Background technique
Pollutant discharging license is the important means for implementing overall control system, by Target of Total Pollutant Amount Control and can cut down task section
Reasonably be assigned to each pollutant discharging unit, it is ensured that overall control system is really fulfilled, and actual effect is seen.Country's pollution in the U.S.
Object discharges regulation in elimination system (National Pollutants Discharge Elimination System, NPDES),
All discharge families all have to carry out and reach the discharge standard based on pollution control technology, still cannot obtain in receiving water body
To when protection, pollution sources are worked out and executed with the discharge standard based on water quality.China proposes to have implemented Pollutant Discharge Permit System
Had more than 30 years, the 14th article of regulation of " Law of the People's Republic of China on the Prevention and Control of Water Pollution " promulgated in 1984 is " directly or indirectly to water
Type, quantity and the concentration that the enterprise and institution ... that body discharges pollutants discharge pollutants, and prevention and treatment water pollution side is provided
The related technical data in face ".This is actually Pollutant Discharge Permit System blank.The Third National environment held for 1989 is protected
Meeting is protected, Pollutant Discharge Permit System is formally determined as one of eight environmental management systems.In July, 1989, through State Council approved,
" Specific Rules for Enforcing the Prevention and Cure Law on Water Pollution of the P.C.C. " the 9th article of regulation of former State Environmental Protection Administration's publication, to enterprises and institutions' list
Pollutant discharging license management is carried out to discharge into water pollutant in position.So far, the discharge permit system of water pollutant is substantially true
It is vertical.The Air Pollution Prevention Law that the Marine Environmental Protection Law that China in 1999 promulgates was promulgated with 2000 is respectively in water environment
The relevant regulations of Pollutant Discharge Permit System implementation have been made in terms of protection and atmospheric environment protection.In January, 2008 does letter with ring
[2008] No. 16 consult on " pollutant discharging license management rules " disclosure.18 Third Plenary Sessions November in 2013 " in altogether in
Entreat decision about several significant problems of deepening the reforms in an all-round way " in propose reform ecological environmental protection management system, establish and complete
The Environmental protection management system of kind stringent supervision all contaminants discharge, it is independent to carry out environment supervision and administrative law enforcement.It implements to
It requires to improve pollutant emission licence system in specific works, carries out enterprises and institutions' Topics on Topics Amount Control Of Pollutant Discharged.
" Law on Environmental Protection " that April 24 the 12nd in 2014, the meeting of the Standing Committee of the National People's Congress the 8th time was newly revised
Article 6 regulation, enterprise and institution and other operators should guard against, reduce environmental pollution and ecological disruption, to being made
At damage undertake the responsibility in accordance with the law；45th article of regulation country carries out blowdown License Management system according to legal provisions.It carries out
The enterprise and institution of blowdown License Management and other operators should discharge pollutants according to the requirement of pollutant discharging license；
Pollutant discharging license is not obtained, must not be discharged pollutants.2014, " pollutant discharging license management is provisional to be done for Environmental Protection Department formulation
Method " (referred to as " method ") execution from January 1st, 2015.Method regulation: five class emphasis pollutant discharging units, i.e. country, Provincial Key
Environmental monitoring enterprise, cities and towns and trade effluent focus on unit, rubbish centralized processing disposition unit, hazardous waste processing disposition
Other pollutant discharging units that unit and provincial environmental protection authorities determine should complete in 1 year from this method is implemented
It provides.
But performance differs greatly pollutant discharging license throughout our country at present, some places achieve good effect
Fruit, some places license granting mechanisms are in fact in the condition of " existing in name only ", first is that the number issued license is arranged with practical
Dirty enterprise's number difference is too big；Second is that some cities and counties did not just implement this system really at all.The reason is that blowdown is permitted
Can limit value calculating it is not scientific enough, while pollutant discharging license management and blowdown the monitoring regime it is incomplete.In order to scientific and reasonable
It formulates blowdown and permits limit value, support pollutant discharging license management system, propose the pollution sources blowdown license limit value based on water quality really
Determine method.There is not yet permitting the pollution sources blowdown based on water quality the report of limit value in existing document, specification and guide.
Summary of the invention
The purpose of the present invention is to propose to a kind of requirement of consideration water quality of river, limit value determination side is permitted in the blowdown for pollution sources
Method, to support pollutant discharging license management.
To achieve the above object, the present invention proposes that limit value determination side is permitted in a kind of pollution sources blowdown based on water quality reaching standard
Method, it is characterized in that, comprising:
Step 1, data preparation, including at least hydrographic data, water quality data and the Pollution Source Monitoring data for collecting basin；
Step 2, the pollution sources in the basin and production row's relationship of sewage draining exit are established；
Step 3, the sewage draining exit in the basin and the pressure response relationship of water quality section are established；
Step 4: combining step 2 and step 3 establish as a result, establishing the pressure between the pollution sources in the basin and water quality section
Force-responsive relationship；
Step 5: calculating the pollution sources totalizing method scheme based on water quality reaching standard, the pollution sources for obtaining the basin are allowing to put down
Average allowable emission in the equal phase；
Step 6: converting the discharge of pollutant sources limit value of different time scales as not for the average allowable emission
Limit value is permitted in blowdown with time scale.
In an embodiment of the present invention, the Pollution Source Monitoring data in step 1 include at least pollutant source emission, sewage draining exit
The continuous monitoring data of position and discharge process, and include: in step 1
The investigation of River Basin Hydrology hydraulic characteristic is carried out, the river water in the basin is generally changed, specifies tributary and mainstream
Produce remittance relationship, the spatial relationship of flow and water quality section；
Different sections, the hydrology parameter of water quality section and hydraulics is calculated using hydrologic method and hydraulic method to join
Number；
And step 2 is the corresponding relationship that the pollution sources and sewage draining exit in the basin are determined by the Pollution Source Monitoring data,
Including spatial relation and discharge relationship, to establish the relationship of single discharge of pollutant sources and sewage draining exit.
In an embodiment of the present invention, step 3 is the space according to the River in the basin, pollution sources and sewage draining exit
Distribution situation is carried out river and generally changed, establishes quality in watershed model, and calibrated using pollutant source emission and water quality data,
The water quality response field of the water body to sewage draining exit discharge of pollutant sources in the basin is obtained, so that it is determined that the sewage draining exit in the basin and water quality are disconnected
The pressure response relationship in face.
In an embodiment of the present invention, in step 3, in the pressure response of the sewage draining exit and water quality section that determine the basin
It is the dynamic response relationship considered between the sewage draining exit and water quality section in the basin when relationship, is realized by the setting response time
Water quality section dynamic response sewage draining exit discharge amount；And step 4 is that the pollution sources and water in the basin are realized by step 2 and step 3
Dynamic response relationship between matter section.
In an embodiment of the present invention, in step 2, the relationship of the single discharge of pollutant sources and sewage draining exit established is such as
Under:
Wi,j,t=f1(i,j,t)·WSj,t (1)
Wherein: Wi,j,tThe discharge amount of sewage draining exit i, dimension g/s are discharged into for t moment pollution sources j；WSj,tFor t moment dirt
The discharge amount of dye source j, dimension g/s；f1The relation function of (i, j, t) between t moment pollution sources j and sewage draining exit i, it is immeasurable
Guiding principle, the relation function are to produce row's situation by the pollution in the basin to determine, and change over time.
In an embodiment of the present invention, the water body in the obtained basin rings the water quality of discharge of pollutant sources in step 3
Answer field as follows:
Wherein: Ck,i,j,tFor t moment by pollution sources j in t-t0Moment is discharged into the discharge amount of sewage draining exit i at water quality section k
The concentration of formation, dimension mg/l；t0The time of water quality section k, dimension s are flowed to by sewage draining exit i for pollution sources j；For t-t0Moment pollution sources j is discharged into the discharge amount of sewage draining exit i, dimension g/s；f2(k, i, t) is t moment blowdown
Relation function between mouth i and water quality section k, the relation function are determined by quality in watershed model, dimensionless；Qk,tWhen for t
Carve the flow of water quality section K, dimension m3/s。
In an embodiment of the present invention, in step 4, it according to formula (1), formula (2), obtains
Enable ak,i,j,t=f1(i,j,t-t0)·f2(k,i,t)/Qk,t
Then obtain the pressure response relationship between pollution sources and water quality section:
Wherein: Ck,i,j,tFor t moment by pollution sources j in t-t0Moment is discharged into the discharge amount of sewage draining exit i at water quality section k
The concentration of formation, dimension mg/l；ak,i,j,tEntered between river and water quality section k for t moment pollution sources j by sewage draining exit i
Water quality pressure response coefficient, dimension are 1/ (m3/s)；For t-t0The discharge amount of moment pollution sources j, dimension g/
s。
It in an embodiment of the present invention, in steps of 5, is based on water quality objective requirement, according to different water quality indicator wind
Danger control requires, and determines that water quality indicator allows average phase and exceeded probability, formulates the capacity totalizing method scheme based on pollution sources,
Obtaining pollution sources is allowing the average allowable emission in the average phase；
Wherein, objective function is up to pollutant source emission, using water quality objective as constraint equation, constructs optimization method
Group, expression formula are as follows:
Objective function:
Constraint equation:
In formula:For t-t0The discharge amount of moment pollution sources j, dimension g/s；N is pollution sources sum；M is
Water quality section number；ak,i,j,tEnter by sewage draining exit i the water quality pressure response between river and water quality section k for t moment pollution sources j
Coefficient, dimension are 1/ (m3/s)；SkFor the water quality objective of water quality section k, dimension mg/l；BkFor the background of water quality section k
Concentration, dimension mg/l；For t-t0Moment pollution sources j maximum emission, dimension g/s；t0For pollution sources j
The time of water quality section k, dimension s are flowed to by sewage draining exit i.
In an embodiment of the present invention, in step 6, it is to consider the non-homogeneous discharge characteristics of discharge of pollutant sources, passes through analysis
Relationship between year, month, day average discharge formulates the emission limit scheme of pollution sources day scale, moon scale and year scale, from
And obtain the discharge of pollutant sources limit value of different time scales.
In an embodiment of the present invention, in step 6:
Enterprise sufficient for monitoring data is according to Pollution Source Monitoring data, and analysis discharge of pollutant sources rule calculates day
Maximum instantaneous discharge amount, maximum per day discharge amount, maximum monthly average discharge amount and annual discharge amount, and between analysis
Proportionate relationship under a proportional relationship converts the average allowable emission being calculated in step 5 to the dirt of different time scales
Contaminate source emission limit value；
The enterprise insufficient for monitoring data is utilized in the same industry, the technological level enterprise similar with production scale
Online monitoring data, estimation day maximum instantaneous discharge amount, maximum per day discharge amount, maximum monthly average discharge amount, Ji Nianping
Proportionate relationship between equal discharge amount, under a proportional relationship converts the average allowable emission being calculated in step 5 to not
With the discharge of pollutant sources limit value of time scale；
The enterprise insufficient for monitoring data is using American National dirt in the case where no online monitoring data
It contaminates source emission and eliminates the option adjusted duration value that the method that system provides calculates different time scales, using the row as different time scales
Dirt license limit value.
The present invention is directed to the requirement of environmental management, is based on water quality objective, considers discharge of pollutant sources feature, proposes blowdown license
Limit value ratification method.By basin water environment simulation and discharge of pollutant sources signature analysis by the target of environmental management of river catchment implement and
It is converted into the management of specific source, is provided the necessary technical support for the management of Pollutant Discharge Permit System.
Detailed description of the invention
Fig. 1 is the flow chart of the invention that method is determined based on the pollution sources blowdown license limit value of water quality reaching standard；
Fig. 2 is the schematic diagram that different time scales limit value of the invention compares；
Fig. 3 is the day monitoring data schematic diagram of 24 hours aqueous concentration change procedures of the invention；
Fig. 4 is the year monitoring data schematic diagram of 365 days disposal of pollutants processes of the invention.
Specific embodiment
The present invention proposes that a kind of pollution sources blowdown license limit value based on water quality reaching standard determines method, by water quality of river target
It is required that combine with discharge of pollutant sources rule, realize water quality reaching standard, pollution sources can the limit value of pipe determine method.
It is of the present invention theoretical including simulation of water quality theory, plan optimization theory, Probability Statistics Theory etc..Of the invention
Method is water quality response field to be determined using simulation of water quality theory, using optimum theory in actual measurement and numerical value analog basis at the scene
It determines the allowable emission based on water quality, pollution sources day, the moon, year emission limit, different time is determined based on Probability Statistics Theory
The blowdown license limit value of scale can support monitoring and the assessment component of blowdown License Management.
As shown in Figure 1, the pollution sources blowdown license limit value of the invention based on water quality reaching standard determines that method specific implementation needs
Want following work step:
Step 1, data preparation, including at least hydrographic data, water quality data and the Pollution Source Monitoring data for collecting basin.
Wherein, related data preparation includes: to carry out the investigation of River Basin Hydrology hydraulic characteristic, is carried out to river water general
Change, specifies the production remittance relationship in tributary and mainstream, flow and the spatial relationship of water quality section etc..Meanwhile utilizing hydrology, hydraulics
Method calculates different sections, the hydrology parameter (flow, water level, concentration time etc.) of section and hydraulic parameter (flow velocity, water
Depth, roughness etc.).
Wherein, associated contamination source monitoring data include at least the company of pollutant source emission, Location for Sewage and discharge process
Continuous monitoring data.
Step 2, the pollution sources in the basin and production row's relationship of sewage draining exit are established.Mainly pass through the Pollution Source Monitoring number
According to the pollution sources in the basin and the corresponding relationship of sewage draining exit being determined, including spatial relation and discharge relationship, to establish list
The relationship of a discharge of pollutant sources and sewage draining exit:
Wi,j,t=f1(i,j,t)·WSj,t (1)
Wherein: Wi,j,tThe discharge amount of sewage draining exit i, dimension g/s are discharged into for t moment pollution sources j；WSj,tFor t moment dirt
The discharge amount of dye source j, dimension g/s；f1The relation function of (i, j, t) between t moment pollution sources j and sewage draining exit i, it is immeasurable
Guiding principle, the relation function are to produce row's situation by the pollution in the basin to determine, and change over time.
In step 2, basin investigation of pollution sources and analysis can be carried out, pollution is listed by the Pollution Source Monitoring data
Source inventory specifies discharge amount, processing disposal options, exhaust position and discharging modes of pollution sources etc..It is bright in line pollution sources
The corresponding relationship of true pollution sources and sewage draining exit is established pollutant source emission according to processing, disposition, discharging modes and is entered between the amount of river
Relationship；For a pollution discharging source, pollutant source emission is established using sewage disposal plant effluent situation and enters the pass between the amount of river
System.
Step 3, the sewage draining exit in the basin and the pressure response relationship of water quality section are established.Mainly according to the river in the basin
Flowing water system, pollution sources and sewage draining exit space distribution situation, carry out river and generally change, establish quality in watershed model, and utilize pollution
Source emission amount and water quality data are calibrated, and the water quality response field of the water body to discharge of pollutant sources in the basin is obtained, so that it is determined that
The sewage draining exit in the basin and the pressure response relationship of water quality section:
Wherein: Ck,i,j,tFor t moment by pollution sources j in t-t0Moment is discharged into the discharge amount of sewage draining exit i at water quality section k
The concentration of formation, dimension mg/l；t0The time of water quality section k, dimension s are flowed to by sewage draining exit i for pollution sources j；For t-t0Moment pollution sources j is discharged into the discharge amount of sewage draining exit i, dimension g/s；f2(k, i, t) is t moment blowdown
Relation function between mouth i and water quality section k, the relation function are determined by quality in watershed model, dimensionless；Qk,tWhen for t
Carve the flow of water quality section k, dimension m3/s。
In the present invention, the basin is considered in the pressure response relationship of the sewage draining exit and water quality section that determine the basin
Sewage draining exit and water quality section between dynamic response relationship, pass through setting response time (i.e. t0) Lai Shixian water quality section dynamic
Sewage draining exit discharge amount is responded, so that it is guaranteed that response relation more tallies with the actual situation.
Step 4: combining step 2 and step 3 establish as a result, establishing the pressure between the pollution sources in the basin and water quality section
Force-responsive relationship.
Preferably, in the present invention, step 4 is to realize the pollution sources and water quality section in the basin by step 2 and step 3
Between dynamic response relationship, by discharge of pollutant sources and water quality response be directly linked, reduce the operation difficulty of method, improve
Operability.
Wherein, it according to formula (1), formula (2), obtains
Enable ak,i,j,t=f1(i,j,t-t0)·f2(k,i,t)/Qk,t
Then obtain the pressure response relationship between pollution sources and water quality section:
Wherein: Ck,i,j,tFor t moment by pollution sources j in t-t0Moment is discharged into the discharge amount of sewage draining exit i at water quality section k
The concentration of formation, dimension mg/l；ak,i,j,tEntered between river and water quality section k for t moment pollution sources j by sewage draining exit i
Water quality pressure response coefficient, dimension are 1/ (m3/s)；For t-t0The discharge amount of moment pollution sources j, dimension are
g/s。
Step 5: calculating the pollution sources totalizing method scheme based on water quality reaching standard, the pollution sources for obtaining the basin are allowing to put down
Average allowable emission in the equal phase.
It in steps of 5, is that water according to different water quality indicator risk control requirements, is determined based on water quality objective requirement
Matter index allows average phase and exceeded probability, formulates the capacity totalizing method scheme based on pollution sources, obtaining pollution sources is allowing
Average allowable emission (such as: 4 daily means, 30 day averages) in the average phase.
For example, being up to objective function with pollutant source emission, using water quality objective as constraint equation, optimization method is constructed
Group, expression formula are as follows:
Objective function:
Constraint equation:
In formula:For t-t0The discharge amount of moment pollution sources j, dimension g/s；N is pollution sources sum；M is
Water quality section number；ak,i,j,tEnter by sewage draining exit i the water quality pressure response between river and water quality section k for t moment pollution sources j
Coefficient, dimension are 1/ (m3/s)；SkFor the water quality objective of water quality section k, dimension mg/l；BkFor the background of water quality section k
Concentration, dimension mg/l；For t-t0Moment pollution sources j maximum emission, dimension g/s；t0For pollution sources j
The time of water quality section k, dimension s are flowed to by sewage draining exit i.
The present invention establishes the response relation matrix based on pollution sources in step 4 as a result, and on this basis, in step
In rapid 5, using planning, optimization method, Optimized model is constructed, being averaged for pollution sources different time scales, which can be obtained, to allow to discharge
Amount.
Step 6: converting the discharge of pollutant sources limit value of different time scales as not for the average allowable emission
Limit value is permitted in blowdown with time scale.
Due to only allowing being averaged in the average phase based on the average allowable emission that water quality reaching standard is calculated in step 5
Discharge amount, and pollutant discharging license need to obtain more time scale emission limit (such as: maximum day limit value, most big moon limit value,
Year limit value etc.), therefore, it is necessary to consider the non-homogeneous discharge characteristics of discharge of pollutant sources, by analysis year, month, day average discharge it
Between relationship, formulate pollution sources day scale, moon scale and year scale emission limit scheme, as shown in Figure 1.
Enterprise sufficient for monitoring data, i.e. monitoring data are relatively more and have more complete day monitoring data (such as Fig. 3 institute
Show) and year monitoring data (as shown in Figure 4), the fluctuation pattern of pollutant source emission can be carried out according to Pollution Source Monitoring data
The time fluctuation rule of discharge of pollutant sources is studied in analysis, for example, analysis discharge of pollutant sources regular (change with time, Day-to-day variability mistake
Journey), day maximum instantaneous discharge amount, maximum per day discharge amount, maximum monthly average discharge amount and annual discharge amount are calculated, and
Proportionate relationship between analysis, the average allowable emission that step 5 is calculated under a proportional relationship are converted into different time
The emission limit of scale.
Wherein, in the case where Pollution Source Monitoring data can support, using monitoring data, pollution sources annual can be obtained
Ratio a between discharge amount and the average daily discharge amount maximum value of pollution sources:
Herein, a can be used as the ratio between day emission limit and annual emission limit, thus according to above-mentioned based on discharge
The day emission limit that standard determines, obtains annual emission limit, further multiplies enterprise's producing days, a year pollution sources can be obtained
Discharge permit amount.
The enterprise insufficient for monitoring data, that is, lack detailed monitoring data, needs a point situation discussion:
(1) using in the same industry, the online monitoring data for the enterprise that technological level is similar, production scale is similar estimates day
Relationship between maximum instantaneous discharge amount, maximum per day discharge amount, maximum monthly average discharge amount and annual discharge amount, so
The average allowable emission being calculated afterwards is converted into the emission limit of different time scales.
(2) in the case where no online monitoring data, it is flat that the method that U.S. NPDES can be used to provide calculates different time
Equal duration value.
Wherein, annual discharge amount (LTA) is to calculate the basis of other times option adjusted duration value, embodies the flat of pollution sources
Equal controlled level, calculation method are as follows:
In formula: XiFor the daily monitor value of COD, dimension mg/L；N is the number of monitor value.
The standard deviation of discharge of pollutant sources and the calculation method of the coefficient of variation are as follows:
In formula, S is the standard deviation of sample；CV is the coefficient of variation, can measure the variation degree of sample, i.e. CV has reacted
The fluctuation severe degree of water concentration, CV is bigger, illustrates that aqueous concentration fluctuation is bigger.
Under the assumed condition of normal distribution, maximum day discharge amount (MDL), most big moon discharge amount (AML) can pass through year
Average discharge (LTA) is that basic data are estimated:
In formula: σcFor the variation situation of sample estimates；Z is the quartile of the standard normal under different guarantee probabilities
Number, the research take the z value under 95% fraction, are 1.646；C is the number of days of different time span.
Formula (10)~(12) embody the relationship of LTA Yu other period average limits, different cycles average limit and LTA's
The calculation method of transformation ratio are as follows:
To which the average allowable emission being calculated can be converted to the emission limit of different time scales.
The present invention is directed to the requirement of environmental management, is based on water quality objective, considers discharge of pollutant sources feature, proposes blowdown license
Limit value ratification method.By basin water environment simulation and discharge of pollutant sources signature analysis by the target of environmental management of river catchment implement and
It is converted into the management of specific source, is provided the necessary technical support for the management of Pollutant Discharge Permit System.
The present invention organically combines water quality management with pollution source management, more refines than existing watershed management,
With more operability, the difficulty of " point " and " face " management is efficiently solved in existing watershed management.
Certainly, there are also very big choices in terms for the treatment of of details by the present invention, or have different processing modes, not
In the case where spirit of that invention and its essence, those skilled in the art can make various corresponding according to the present invention
Change and modification, but these corresponding changes and modifications all should belong to the protection scope of the claims in the present invention.
Claims (8)
1. a kind of pollution sources blowdown license limit value based on water quality reaching standard determines method characterized by comprising
Step 1, data preparation, including at least hydrographic data, water quality data and the Pollution Source Monitoring data for collecting basin；
Step 2, the pollution sources in the basin and production row's relationship of sewage draining exit are established；
Step 3, the sewage draining exit in the basin and the pressure response relationship of water quality section are established, is the river water according to the basin
It is, the space distribution situation of pollution sources and sewage draining exit to carry out river and generally change, establishes quality in watershed model, and arrange using pollution sources
It is high-volume calibrated with water quality data, the water quality response field of the water body to sewage draining exit discharge of pollutant sources in the basin is obtained, thus really
The sewage draining exit in the fixed basin and the pressure response relationship of water quality section, and in the pressure of the sewage draining exit and water quality section that determine the basin
It is the dynamic response relationship considered between the sewage draining exit and water quality section in the basin when force-responsive relationship, by the way that the response time is arranged
To realize water quality section dynamic response sewage draining exit discharge amount；
Step 4: that combining step 2 and step 3 are established as a result, the pressure established between the pollution sources in the basin and water quality section is rung
It should be related to, wherein step 4 is the dynamic response realized between the pollution sources and water quality section in the basin by step 2 and step 3
Relationship；
Step 5: calculating the pollution sources totalizing method scheme based on water quality reaching standard, the pollution sources for obtaining the basin are allowing the average phase
Interior average allowable emission；
Step 6: by the average allowable emission be converted into the discharge of pollutant sources limit values of different time scales using as it is different when
Between scale blowdown permit limit value.
2. the pollution sources blowdown license limit value according to claim 1 based on water quality reaching standard determines method, which is characterized in that
Pollution Source Monitoring data in step 1 include at least the continuous monitoring number of pollutant source emission, Location for Sewage and discharge process
According to, and in step 1 include:
The investigation of River Basin Hydrology hydraulic characteristic is carried out, the river water in the basin is generally changed, the production for specifying tributary and mainstream converges
Relationship, the spatial relationship of flow and water quality section；
Different sections, the hydrology parameter of water quality section and hydraulic parameter are calculated using hydrologic method and hydraulic method；
And step 2 is the corresponding relationship that the pollution sources and sewage draining exit in the basin are determined by the Pollution Source Monitoring data, including
Spatial relation and discharge relationship, to establish the relationship of single discharge of pollutant sources and sewage draining exit.
3. the pollution sources blowdown license limit value according to claim 2 based on water quality reaching standard determines method, which is characterized in that
In step 2, the relationship of the single discharge of pollutant sources and sewage draining exit established is as follows:
WI, j, t=f1(i, j, t) WSJ, t (1)
Wherein: WI, j, tThe discharge amount of sewage draining exit i, dimension g/s are discharged into for t moment pollution sources j；WSJ, tFor t moment pollution sources j
Discharge amount, dimension g/s；f1The relation function of (i, j, t) between t moment pollution sources j and sewage draining exit i, dimensionless should
Relation function is to produce row's situation by the pollution in the basin to determine, and change over time.
4. the pollution sources blowdown license limit value according to claim 3 based on water quality reaching standard determines method, which is characterized in that
The water body in the obtained basin is as follows to the water quality response field of discharge of pollutant sources in step 3:
Wherein: CK, i, j, tFor t moment by pollution sources j in t-t0The discharge amount that moment is discharged into sewage draining exit i is formed at water quality section k
Concentration, dimension mg/l；t0The time of water quality section k, dimension s are flowed to by sewage draining exit i for pollution sources j；For t-t0Moment pollution sources j is discharged into the discharge amount of sewage draining exit i, dimension g/s；f2(k, i, t) is t moment sewage draining exit
Relation function between i and water quality section k, the relation function are determined by quality in watershed model, dimensionless；QK, tFor t moment
The flow of water quality section k, dimension m3/s。
5. the pollution sources blowdown license limit value according to claim 4 based on water quality reaching standard determines method, which is characterized in that
In step 4, it according to formula (1), formula (2), obtains
Enable aK, i, j, t=f1(i, j, t-t0)·f2(k, i, t)/QK, t
Then obtain the pressure response relationship between pollution sources and water quality section:
Wherein: CK, i, j, tFor t moment by pollution sources j in t-t0The discharge amount that moment is discharged into sewage draining exit i is formed at water quality section k
Concentration, dimension mg/l；aK, i, j, tEnter by sewage draining exit i the water quality between river and water quality section k for t moment pollution sources j
Pressure response coefficient, dimension are 1/ (m3/s)；For t-t0The discharge amount of moment pollution sources j, dimension g/s.
6. the pollution sources blowdown license limit value according to claim 5 based on water quality reaching standard determines method, which is characterized in that
It in steps of 5, is, according to different water quality indicator risk control requirements, to determine that water quality indicator allows based on water quality objective requirement
Average phase and exceeded probability formulate the capacity totalizing method scheme based on pollution sources, and obtaining pollution sources allowed in the average phase
Average allowable emission；
Wherein, objective function is up to pollutant source emission, using water quality objective as constraint equation, constructs optimization method group, table
Up to formula are as follows:
Objective function:
Constraint equation:
In formula:For t-t0The discharge amount of moment pollution sources j, dimension g/s；N is pollution sources sum；M is disconnected for water quality
Face number；aK, i, j, t is that t moment pollution sources j by sewage draining exit i enters the water quality pressure response coefficient between river and water quality section k,
Its dimension is 1/ (m3/s)；SkFor the water quality objective of water quality section k, dimension mg/l；BkFor the background concn of water quality section k,
Its dimension is mg/l；For t-t0Moment pollution sources j maximum emission, dimension g/s；t0It is pollution sources j by arranging
Dirty mouth i flows to the time of water quality section k, dimension s.
7. the pollution sources blowdown license limit value according to claim 6 based on water quality reaching standard determines method, which is characterized in that
In step 6, it is to consider the non-homogeneous discharge characteristics of discharge of pollutant sources, passes through the pass between analysis year, month, day average discharge
System formulates the emission limit scheme of pollution sources day scale, moon scale and year scale, to obtain the pollution sources of different time scales
Emission limit.
8. the pollution sources blowdown license limit value according to claim 7 based on water quality reaching standard determines method, which is characterized in that
In step 6:
Enterprise sufficient for monitoring data is according to Pollution Source Monitoring data, and it is maximum to calculate day for analysis discharge of pollutant sources rule
Instantaneous discharge amount, maximum per day discharge amount, maximum monthly average discharge amount and annual discharge amount, and the ratio between analysis
Relationship under a proportional relationship converts the average allowable emission being calculated in step 5 to the pollution sources of different time scales
Emission limit；
The enterprise insufficient for monitoring data, be using the same industry in, the technological level enterprise similar with production scale
Line monitoring data, estimation day maximum instantaneous discharge amount, maximum per day discharge amount, maximum monthly average discharge amount and annual row
Proportionate relationship between high-volume, when converting different for the average allowable emission being calculated in step 5 under a proportional relationship
Between scale discharge of pollutant sources limit value；
The enterprise insufficient for monitoring data is using American National pollution sources in the case where no online monitoring data
The option adjusted duration value that the method that elimination system provides calculates different time scales is discharged, is permitted using the blowdown as different time scales
It can limit value.
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