CN113627770B - Industrial industry source-process-tail-end overall-process collaborative emission reduction potential evaluation method - Google Patents
Industrial industry source-process-tail-end overall-process collaborative emission reduction potential evaluation method Download PDFInfo
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Abstract
The invention provides an industrial industry source-process-tail end overall process collaborative emission reduction potential evaluation method, which relies on a set of overall process pollution emission reduction potential evaluation model focused on a specific emission reduction control link, namely a source-process-tail end overall process emission reduction potential evaluation model (SPECM), and comprises an emission reduction industry screening module, an industrial emission characteristic analysis module and an emission reduction potential evaluation module; the evaluation method comprises top-down emission reduction potential difference calculation, emission characteristic analysis and bottom-up emission reduction potential evaluation based on scenario analysis. According to the invention, by analyzing the application of different products, raw materials, production processes and treatment technologies in the industry and the current situation of production and pollution discharge, the potential difference value measurement and calculation mode is adopted to identify the emission reduction spaces existing in the aspects of raw material substitution, process upgrading, treatment technology upgrading and the like one by one, and the most potential and feasible production process route for pollution emission reduction is screened, so that accurate countermeasures are provided for pollution emission reduction and transformation upgrading of regional industries.
Description
Technical Field
The invention belongs to the technical field of environmental management, and particularly relates to a potential evaluation method for source-process-tail-end full-process cooperative emission reduction in an industrial industry.
Background
The potential evaluation of pollution emission reduction is to analyze the reduction space of the generation amount and the emission amount of pollutants obtained after different clean production and pollution treatment technologies are implemented on a pollution source. A great deal of research is carried out by scholars at home and abroad aiming at the evaluation of the emission reduction potential of different areas, industries and pollutant types. The common evaluation methods and models at home and abroad include a MARKAL model, a LEAP model, an AIM/Enduse model, a RAINS model, a CGE model, a LEAPCina model, an AIM-EnduseChina model, a Chinagem model and the like. The model and the method mainly develop emission reduction strategies by taking energy or industrial structure adjustment as key points, and the potential evaluation method based on the production process in the fresh industry has the defects of insufficient accuracy and pertinence of measures during industrial emission reduction. In addition, the current evaluation of emission reduction potential also lacks the systematic consideration of a production end (clean production potential) and a treatment end (terminal treatment potential), and the synergistic emission reduction effect between clean production and terminal treatment also lacks the research.
Therefore, a set of overall process cooperative pollution emission reduction potential evaluation model accurate to a specific emission reduction process needs to be established urgently.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a potential evaluation method for the synergistic emission reduction of the source-process-tail-end whole process of the industrial industry from the realization of the quantitative requirements on pollution emission reduction under the ecological environment quality improvement target and the technical feasibility of the region and the industrial level.
The invention establishes a set of overall Process pollution emission reduction potential evaluation Model focusing on a specific emission reduction control link, namely a Source-Process-tail end overall Process emission reduction potential evaluation Model (SPECM), and comprises an emission reduction industry screening module, an industrial emission characteristic analysis module and an emission reduction potential evaluation module as shown in figure 1.
The purpose of the invention is realized by the following technical scheme:
a potential evaluation method for collaborative emission reduction of a source-process-tail-end whole process of an industrial industry comprises the following steps: s1, calculating the top-down emission reduction potential difference value based on the situation analysis
S11, determining the target area:
according to the industrial structure of the area to be evaluated, selecting an area which is similar to the industrial structure of the area to be evaluated and has the pollution discharge performance obviously superior to the level of the area to be evaluated as a benchmarking area;
s12, identifying emission reduction industry categories:
according to two dimensions of emission volume ratio (X%) and emission intensity (Z%), classifying the industrial industries of the area to be evaluated according to the identification criteria shown in fig. 2, and dividing the industries into an emission reduction industry (I), an emission reduction industry (II), an emission reduction industry (III) and the like;
s13, emission reduction potential difference measurement:
measuring and calculating the Clean Production Potential (CPP), the tail end emission reduction potential (EPP), the Benchmarking Mode Potential (BMP) and the cooperative emission reduction potential (CP) of the corresponding industries of the area to be evaluated and the benchmarking area by industries, thereby determining the industrial industry with higher emission reduction potential in the area to be evaluated;
CPPi＝GVi×ΔIGi×(1-ηi，0)
EPPi＝-PGi×Δηi
BMPi＝GVi×ΔIOi
CPi＝GVi×IGi,2×(1-ηi,2)-POi
in the formula, i is a subclass industry in national economy industry classification codes; CPPiThe production potential is measured from top to bottom and is measured by ton; GViIs the total industrial value of industry i, billion yuan; delta IGiThe difference value of the pollution intensity after the emission reduction of the industry i and the current pollution intensity is ton/hundred million yuan; etai，0Actual removal rate,%, of the current contaminants of industry i; EPPiThe terminal emission reduction potential is measured from top to bottom, namely ton; PG (Picture experts group)iThe pollutant production amount of industry i is ton; Δ ηiThe difference value of the actual removal rate after the emission reduction of the industry i and the current removal rate is percent; BMPiThe measurement is the marker post mode potential measured from top to bottom, namely ton; delta IOiThe difference value of emission intensity between the emission reduction of the industry i and the current emission intensity is ton/hundred million yuan; CP (CP)iTon is the synergistic emission reduction potential measured from top to bottom; IG (air insulated gate bipolar translator)i，2The sewage production intensity of the trade i in the benchmarking area is ton/hundred million yuan; etai，2For post area trade iPercent removal rate; PO (PO)iThe method is used for discharging the pollutants of industry i in tons;
s2, emission characteristic analysis
Aiming at the industrial industries with larger emission reduction potential in the area to be evaluated determined by S1 measurement and calculation, performing pollution production process identification and terminal treatment condition identification in different industries according to the following formulas, wherein the terminal treatment condition identification comprises calculation of actual removal rate, enterprise quantity ratio and emission ratio;
the main pollution production process of a certain industry is determined by the following formula:
the pollutant production amount of the production process in the industry i is sorted from large to small, the first 85 percent of the total amount is taken and determined as the main product process of the industry;
in the formula, PGi，jThe pollutant production amount of the production process in the ith industry is ton; PG (Picture experts group)iThe pollutant production amount of industry i is ton;
the end treatment condition identification formula is as follows:
actual removal rate
Enterprise number ratio using jth end treatment technique
Ratio of discharge to discharge
In the formula, k is the kth terminal processing technology adopted by the industry; etai，kActual removal rate,%, for the kth end treatment technique of industry i; PG (Picture experts group)i，kPollutant throughput, ton, for industry i using kth end treatment technology; PO (PO)i，kUsing kth end processing technology for industry iThe pollutant discharge amount of the operation is ton; y isi，kThe percentage of the enterprise number adopting the kth tail end processing technology in the enterprise number of the industry is I; ei，kNumber of enterprises using the first end-processing technique for industry i; YOi，kThe percentage of pollutant discharge after the treatment of the kth tail end treatment technology is defined as the percentage of the pollutant discharge in the industry i; PO (PO)iThe discharge amount of industry i is ton;
s3, bottom-up emission reduction potential assessment
Based on the recognition results of the pollution production process and the tail end treatment condition of S2 in various industries, the difference between the pollution production level of a specific production process and the corresponding industry of a benchmark area is analyzed, the pollution reduction potential of a source, a process and a tail end and the synergistic emission reduction potential of the source-process-tail end whole process are respectively measured and calculated by a clean production transformation and tail end treatment upgrading method and a computer ternary linear equation method including a Python exhaustion method.
Further, in step S12, in the identification of the emission reduction industry category, the selection principle of X and Z is as follows: the X value needs to be selected so that the emission occupation ratio of the covered industry is high; z is selected so that the more discharge intensive industries are not classified into the "others" category.
Further, the contaminants include water contaminants and atmospheric contaminants.
Compared with the prior art, the invention has the beneficial effects that:
1. pollutant abatement is primarily influenced by both policy and technology. In policy, the ecological environment quality improvement target puts a restrictive requirement on the allowable discharge amount of pollutants; in the technical aspect, the pollutant emission reduction potential is directly related to the technical level of the production process, the technical level of pollution control, the technical level of management, efficiency and the like, and both the technical level and the efficiency need to be considered when the emission reduction technical approach is established. The top-down combination and the bottom-up combination of modeling can comprehensively consider the macroscopic overall regulation and control target and the microscopic technical definition. The method adopts a mode of combining top-down and bottom-up to model, wherein top-down refers to measuring and calculating the overall emission reduction potential of the industry from a macroscopic view, and the model is obtained by overall comparative analysis with an advanced technical level area of the industry; the emission reduction potential is measured and calculated from the microscopic angle of the production process from the beginning of industrial production of products, processes and raw materials from bottom to top;
2. the invention establishes a set of whole-Process pollution emission reduction potential evaluation Model focusing on a specific emission reduction control link, namely a Source-Process-tail End whole-Process emission reduction potential evaluation Model (SPECM), takes the emission reduction target and the emission reduction target of different production processes as main constraints on the premise of fully considering the influence of the emission reduction target and the different production processes on the emission of pollutants, further mines the data of industrial pollution sources, utilizes the activity level and the emission and pollution discharge information of the pollution sources of various industries, analyzes the application and the current situation of the emission and pollution discharge of different products, raw materials, production processes and treatment technologies in the industries, and adopts a potential difference value measuring and calculating mode to identify the emission reduction space existing in the aspects of raw material substitution, Process upgrading, treatment technology upgrading and the like one by one, and screens the most potential and feasible production Process route of pollution emission reduction, an industrial industry source-process-end overall-process collaborative emission reduction potential evaluation method is established, accurate countermeasures are provided for regional industry pollution reduction and transformation upgrading, and the method is more pertinent.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a hierarchy of a Source-Process-end Overall Process emission reduction potential assessment model (SPECM) according to the present invention;
FIG. 2 is a diagram of emission reduction industry type identification criteria;
FIG. 3 is a graph of the discharge potential difference measurement results of the emission reduction industry in the cis-trans district in example 1;
FIG. 4 is a graph showing the ratio of the amounts of VOCs produced in the process of emission reduction in the cis-district (I) and (III) according to example 1;
FIG. 5 is a graph showing the results of end treatment in the manufacturing industry of wooden furniture in the cis-moral area in example 1;
FIG. 6 is a graph of the results of the abatement potential of the cis-trans region of example 1;
FIG. 7 is a bottom-up synergistic emission reduction potential coefficient boundary range in a progressive area of example 1;
FIG. 8 is a chart showing the classification results of VOCs emission industries in Lanzhou city according to example 2;
FIG. 9 is a top-down emission reduction potential result chart of emission reduction industry in Lanzhou city, example 2;
FIG. 10 is a diagram showing the results of the operation of the end-of-line treatment facility in the industry involving the discharge of VOCs in Lanzhou city in example 2;
FIG. 11 is a bottom-up emission reduction potential result diagram of emission reduction industry in Lanzhou city, example 2;
FIG. 12 is a plan view showing the emission reduction strategy of the same industry as Lanzhou city in example 2;
FIG. 13 is a graph of example 2, Lanzhou city process-end synergy emission reduction potential and emission reduction coefficient distribution thereof;
fig. 14 is a graph showing the source-process-terminal synergistic emission reduction potential and emission reduction coefficient results of the lan state city in example 2.
Detailed Description
Example 1
In the embodiment, a cis-moral area in Fushan City of Guangdong province is selected as an area to be evaluated, and source-process-terminal overall process cooperative emission reduction potential evaluation is performed on the industrial industry of the area, and the method specifically comprises the following steps:
s1, calculating the top-down emission reduction potential difference value based on the situation analysis
S11, determining the target area:
according to the industrial structure of the Shenzhen region in Fushan City in Guangdong province, the Shenzhen city which is similar to the industrial structure of the Shenzhen region but has a higher clean production level is selected as the marker post region.
S12, identifying emission reduction industry categories:
according to two dimensions of emission volume ratio (X%: 2%) and emission intensity (Z%: 75%), the industrial industries of the area to be evaluated are classified according to the identification criteria shown in FIG. 2, and are divided into an emission reduction industry (I), an emission reduction industry (II), an emission reduction industry (III) and others.
The industry classification of the cis district is: the emission reduction industry (I) comprises wood furniture manufacturing industry (2110), plastic plates, pipes, section manufacturing industry (2922), plastic parts and other plastic product manufacturing industry (2929), electric wires, cable manufacturing industry (3831), metal furniture manufacturing industry (2130), paint manufacturing industry (2641), other unlisted metal product manufacturing industry (3399) and household kitchen electrical appliance manufacturing industry (3854), and the total emission amount of VOCs exceeds 70.0 percent of the total emission amount of VOCs in the Shundu district. The emission intensity of VOCs in emission reduction industry (II) is high, the clean production level is poor, the source emission reduction potential is large, and the method is an industry which needs to be concerned with VOCs emission reduction in the future in the cis-moral region. The emission reduction industry (III) is the foam manufacturing industry (2924).
S13, emission reduction potential difference measurement:
measuring and calculating the Clean Production Potential (CPP), the tail end emission reduction potential (EPP), the Benchmarking Mode Potential (BMP) and the cooperative emission reduction potential (CP) of the corresponding industries of the area to be evaluated and the benchmarking area by industries, thereby determining the industrial industry with higher emission reduction potential in the area to be evaluated;
CPPi＝GVi×ΔIGi×(1-ηi，0)
EPPi＝-PGi×Δηi
BMPi＝GVi×ΔIOi
CPi＝GVi×IGi,2×(1-ηi,2)-POi
in the formula, i is a subclass industry in national economy industry classification codes; CPPiThe production potential is measured from top to bottom and is measured by ton; GViIs the total industrial value of industry i, billion yuan; delta IGiThe difference value of the pollution intensity after the emission reduction of the industry i and the current pollution intensity is ton/hundred million yuan; etai，0Actual removal rate,%, of the current contaminants of industry i; EPPiThe terminal emission reduction potential is measured from top to bottom, namely ton; PG (Picture experts group)iThe pollutant production amount of industry i is ton; Δ ηiThe difference value of the actual removal rate after the emission reduction of the industry i and the current removal rate is percent; BMPiThe measurement is the marker post mode potential measured from top to bottom, namely ton; delta IOiThe difference value of emission intensity between the emission reduction of the industry i and the current emission intensity is ton/hundred million yuan; CP (CP)iTon is the synergistic emission reduction potential measured from top to bottom; IG (air insulated gate bipolar translator)i，2The sewage production intensity of the trade i in the benchmarking area is ton/hundred million yuan; etai，2Actual removal rate of the benchmarking area industry i,%; PO (PO)iThe method is used for discharging the pollutants of industry i in tons;
the measurement result of the emission potential difference of the cis-districts is shown in fig. 3, and compared with the benchmark area, the emission reduction potentials of the emission reduction industries (I) and (III) in the cis-districts are larger, and the emission reduction potentials of the emission reduction industries (II) are smaller.
S2, emission characteristic analysis
Taking VOCs emission reduction in the industrial industry as an example, aiming at the industrial industry with larger emission reduction potential in the emission reduction industry (I) and the emission reduction industry (III) in the cis-district, performing pollution production process identification and tail end treatment condition identification in different industries according to the following formulas, wherein the tail end treatment condition identification comprises calculation of an actual removal rate, an enterprise number ratio and an emission ratio;
the main pollution production process of each industry is determined by the following formula:
the pollutant production amount of the production process in the industry i is sorted from large to small, the first 85 percent of the total amount is taken and determined as the main product process of the industry;
in the formula, PGi，jThe pollutant production amount of the production process in the ith industry is ton; PG (Picture experts group)iThe pollutant production amount of industry i is ton;
the emission reduction of the VOCs is further focused on the pollution production process, and the main VOCs pollution production and discharge processes of various industries are more concentrated through the discovery of figure 4, the main VOCs pollution discharge processes are improved and treated, and the industrial pollution emission reduction requirements can be quickly met.
Taking the wood furniture manufacturing industry as an example, the solid wood furniture and artificial board furniture manufacturing production process is a main production process of VOCs emission reduction control in the wood furniture manufacturing industry. Wherein, the VOCs production amount of the leveling/drying/airing + coating (solvent type) process accounts for 28.88% of the total production amount of the whole industry; the production of VOCs from the paint + coating (solvent based) process accounted for 66.51% of the total production throughout the industry. By controlling the two production processes, the production amount of VOCs of more than 90% in the wood furniture manufacturing industry can be controlled;
table 1 below shows the main product processes of the abatement industry (i) and the abatement industry (iii) of the cis-district.
The end treatment condition identification formula is as follows:
actual removal rate
Enterprise number ratio using jth end treatment technique
Ratio of discharge to discharge
In the formula, k is the kth terminal processing technology adopted by the industry; etai，kActual removal rate,%, for the kth end treatment technique of industry i; PG (Picture experts group)i，kPollutant throughput, ton, for industry i using kth end treatment technology; PO (PO)i，kThe pollutant discharge amount of the k terminal treatment technology is used for industry i, and is ton; y isi，kThe percentage of the enterprise number adopting the kth tail end processing technology in the enterprise number of the industry is I; ei，kNumber of enterprises using the first end-processing technique for industry i; YOi，kThe percentage of pollutant discharge after the treatment of the kth tail end treatment technology is defined as the percentage of the pollutant discharge in the industry i; PO (PO)iThe discharge amount of industry i is ton;
the analysis result of the end processing condition of the industrial VOCs is as follows:
as shown in fig. 5, taking the wood furniture manufacturing industry as an example, the percentage of the straight-lined enterprises is 11.62%, and the average removal efficiency of the end treatment technology is only 5.63%. The average removal rate of low-temperature plasma, photolysis and other (disposable activated carbon adsorption) which are widely used in the cis-trans area is low, and the use rate of external gas collecting hood-low-temperature plasma and other (activated carbon adsorption) which have high average removal rate is low. The average removal rate of the VOCs treatment technology adopted in Shenzhen city is higher, wherein the average removal rates of other (activated carbon fibers or zeolite adsorption/desorption/catalytic oxidation) are respectively 19.41%. The wooden furniture manufacturing industry has objective terminal emission reduction potential by improving the application rate of a high-efficiency terminal treatment technology or introducing other (activated carbon fiber or zeolite adsorption/desorption/catalytic oxidation) technologies in Shenzhen city.
S3, bottom-up emission reduction potential assessment
Analyzing the difference between the product and sewage level of a specific production process and the corresponding industry of a benchmark region based on the recognition results of S2 on the product and sewage process and the tail end treatment condition of each industry, upgrading through clean production modification and tail end treatment, measuring and calculating the emission reduction potential of a source, a process and a tail end through a Python exhaustion method, and measuring the source-process-tail end whole process cooperative emission reduction potential;
the calculation formulas of the emission reduction potential of the source, the process and the tail end are respectively as follows:
the objective function of the source-process-terminal overall process cooperative emission reduction potential is as follows:
MinΔIGi＝IGi，t-IGi，0
MaxΔηi＝ηi，k-ηi，0
the constraint conditions are as follows:
0≤α≤100％
0≤β≤100％
0≤γ≤100％
in the formula: delta P is the difference value between the emission reduction and the current emission amount, and is ton; PO (PO)iThe method is characterized in that the method is the current discharge amount of industry i, namely ton; qp/mThe amount of the product or raw auxiliary materials is ton;
the pollution production coefficient of the industry i after clean production is implemented;
the current pollution coefficient of the industry i; etai,kActual removal rate after emission reduction for the kth tail end technology used in industry i,%; etai,0Is the current actual removal rate,%, of industry i; delta PGsThe potential for emission reduction from the source is ton; delta PGpTon is the potential of process emission reduction; delta PGeThe potential for end emission reduction, ton; alpha is a source emission reduction potential coefficient; beta is a process emission reduction potential coefficient; gamma is a terminal emission reduction potential coefficient; delta IGiGenerating an intensity difference value of ton/hundred million yuan with the current pollutants after the emission reduction of the industry i; IG (air insulated gate bipolar translator)i，tThe pollution intensity of the industry i after emission reduction is ton/hundred million yuan; IG (air insulated gate bipolar translator)i，0The current pollution intensity of the industry i is ton/hundred million yuan; delta IGi，jpThe difference value of the pollution intensity of the j product-raw material-process of the industry i after emission reduction and the current pollution intensity is ton/hundred million yuan; IG (air insulated gate bipolar translator)i，jThe current pollutant generation intensity of the j product-raw material-process of the industry i is ton/billion yuan; IG (air insulated gate bipolar translator)i，jsThe pollution intensity of the j product of the industry i, namely raw material, after emission reduction of a process source is ton/hundred million yuan; PG (Picture experts group)i，tThe method is characterized in that the method is used for producing ton of pollutants after process emission reduction and source emission reduction in industry i; PO (PO)AAllowance for contaminants in the target areaDischarge capacity, ton.
The production process in the cis-moral region has high pollution production intensity and low use amount of cleaning raw materials, and has obvious source emission reduction potential and process emission reduction potential compared with a benchmarking region, as shown in figure 6.
Only considering the technology upgrading (see figure 6(2)), taking the manufacturing industry of wooden furniture in the moral region as an example, the VOCs (volatile organic chemicals) generation strength of solid wood furniture and artificial board furniture-spray painting-coating (solvent type) is 154.63 tons/hundred million yuan, while the pollution production strength of the production process adopted in the benchmarking region is 10.58 tons/hundred million yuan, and the emission reduction potential is up to 18.47 percent when the technology upgrading coefficient is 100 percent.
When only raw material substitution is considered (see figure 6(1)), taking the manufacturing industry of wooden furniture in the cis-moral region as an example, the pollution production intensity of spraying paint on the wooden furniture and the artificial board furniture by adopting the solvent type paint is 21 times that of spraying paint by adopting the water-based paint, when the raw material substitution coefficient reaches 20%, the source emission reduction potential reaches 3.78%, and when the raw material substitution coefficient reaches 100%, the emission reduction potential reaches 18.88%.
In this embodiment, the end emission reduction countermeasure is end reduction of the directly-discharged VOCs by an end treatment technology with a high industry removal rate. When only considering tail end emission reduction (see fig. 6 and 3), the direct discharge rate of VOCs in the manufacturing industry of plastic plates, pipes and sectional materials is 60.8%, the tail end treatment technology with the highest industrial removal rate is low-temperature plasma and other technologies (activated carbon adsorption), the removal rate is 24.00%, and when the tail end emission reduction potential coefficient reaches 100%, the tail end emission reduction potential is 1.86%. In the foam plastic manufacturing industry, the direct discharge rate of VOCs is 1.58%, the tail end treatment technology with the highest industrial removal rate is low-temperature plasma and other (activated carbon adsorption), the removal rate is 24.00%, and when the tail end emission reduction potential coefficient reaches 100%, the tail end emission reduction potential is only 0.01%.
The emission reduction principle of the source-process-tail end overall process collaborative emission reduction potential takes technical upgrading as priority, raw material substitution and tail end emission reduction are carried out on the basis of the technical upgrading, and the source, process and tail end emission reduction potential of collaborative emission reduction is measured and calculated. The source-process-tail end overall process synergistic emission reduction potential is shown in a figure 6(4), when the emission reduction potential coefficients alpha, beta and gamma of the source, the process and the tail end are all 20%, the synergistic emission reduction potential reaches 12.94%, and the requirement of emission reduction of 7% in a cis-moral region is met. When the emission reduction potential coefficients of the source, the process and the tail end are 5% or 10%, the synergistic emission reduction potentials are 3.25% and 6.49% respectively, and the emission reduction requirement of the cis-to-de district cannot be met, so that the emission reduction degree of the source, the process or the tail end is improved, and the emission reduction requirement of the VOCs of 7% in the cis-to-de district can still be met.
And obtaining a non-inferior solution set of the technology, the raw materials and the terminal synergistic emission reduction potential coefficients alpha, beta and gamma by a Python exhaustion method (or other methods for solving a ternary linear equation by a computer). When the emission reduction target of the VOCs in the cis-trans area is 7-8%, a non-inferior solution set of the source-process-tail end synergistic emission reduction potential coefficient is shown in figure 7. The value range of the synergistic emission reduction potential coefficient shown in fig. 7 is only the lowest boundary of the emission reduction potential coefficient when the emission reduction target is 7-8%, and when the value of the synergistic emission reduction potential coefficient is larger than the lowest boundary, a larger emission reduction potential is generated.
Example 2
In the embodiment, the area to be evaluated in Lanzhou city, Gansu province is selected, and source-process-terminal overall process collaborative emission reduction potential evaluation is performed on the industrial industry of the area, and the method specifically comprises the following steps:
s1, calculating the top-down emission reduction potential difference value based on the situation analysis
S11, determining the target area:
according to the industrial structure of Lanzhou city in Gansu province, Gansu province and Shenzhen city which are similar to the industrial structure of Lanzhou city but have higher clean production level are respectively selected as the marker post areas.
S12, identifying emission reduction industry categories:
according to two dimensions of emission volume ratio (X%: 2%) and emission intensity (Z%: 99%), the industrial industries of the area to be evaluated are classified according to the identification criteria shown in fig. 2, and are divided into an emission reduction industry (I), an emission reduction industry (II), an emission reduction industry (III) and others.
The classification of emission reduction industries (I), (II) and (III) in Lanzhou is shown in FIG. 8. The emission reduction industry (I) is an industry with VOCs emission amount accounting for the first 99% of that of the Lanzhou city but with emission intensity smaller than the maximum emission intensity by 2%, the emission reduction industry (II) is an industry with emission intensity larger than the maximum emission intensity by 2%, and the emission reduction industry (III) is an industry with emission amount accounting for the first 99% of that of the Lanzhou city and with emission intensity larger than the maximum emission intensity by 2%.
S13, emission reduction potential difference measurement:
measuring and calculating the Clean Production Potential (CPP), the tail end emission reduction potential (EPP), the Benchmarking Mode Potential (BMP) and the cooperative emission reduction potential (CP) of the corresponding industries of the area to be evaluated and the benchmarking area by industries, thereby determining the industrial industry with higher emission reduction potential in the area to be evaluated;
CPPi＝GVi×ΔIGi×(1-ηi，0)
EPPi＝-PGi×Δηi
BMPi＝GVi×ΔIOi
CPi＝GVi×IGi,2×(1-ηi,2)-POi
in the formula, i is a subclass industry in national economy industry classification codes; CPPiThe production potential is measured from top to bottom and is measured by ton; GViIs the total industrial value of industry i, billion yuan; delta IGiThe difference value of the pollution intensity after the emission reduction of the industry i and the current pollution intensity is ton/hundred million yuan; etai，0Actual removal rate,%, of the current contaminants of industry i; EPPiThe terminal emission reduction potential is measured from top to bottom, namely ton; PG (Picture experts group)iThe pollutant production amount of industry i is ton; Δ ηiThe difference value of the actual removal rate after the emission reduction of the industry i and the current removal rate is percent; BMPiThe measurement is the marker post mode potential measured from top to bottom, namely ton; delta IOiThe difference value of emission intensity between the emission reduction of the industry i and the current emission intensity is ton/hundred million yuan; CP (CP)iTon is the synergistic emission reduction potential measured from top to bottom; IG (air insulated gate bipolar translator)i，2The sewage production intensity of the trade i in the benchmarking area is ton/hundred million yuan; etai，2Actual removal rate of the benchmarking area industry i,%; PO (PO)iThe method is used for discharging the pollutants of industry i in tons;
the potential situation of emission reduction from top to bottom in emission reduction industries (I), (II) and (III) in Lanzhou city is shown in figure 9.
Compared with the benchmarking area, the emission reduction potential of emission reduction industries (I) and (III) in Lanzhou city is larger, and the emission reduction potential of emission reduction industry (II) is smaller.
S2, emission characteristic analysis
Taking VOCs emission reduction in the industrial industry as an example, aiming at the industrial industry with larger emission reduction potential in the emission reduction industry (I) and the emission reduction industry (III) in the cis-district, performing pollution production process identification and tail end treatment condition identification in different industries according to the following formulas, wherein the tail end treatment condition identification comprises calculation of an actual removal rate, an enterprise number ratio and an emission ratio;
the main pollution production process of each industry is determined by the following formula:
the pollutant production amount of the production process in the industry i is sorted from large to small, the first 85 percent of the total amount is taken and determined as the main product process of the industry;
in the formula, PGi，jThe pollutant production amount of the production process in the ith industry is ton; PG (Picture experts group)iThe pollutant production amount of industry i is ton;
the end treatment condition identification formula is as follows:
actual removal rate
Enterprise number ratio using jth end treatment technique
Ratio of discharge to discharge
In the formula, k is the kth terminal processing technology adopted by the industry; etai，kActual removal rate,%, for the kth end treatment technique of industry i; PG (Picture experts group)i，kContamination Using kth end treatment technology for industry iHandling capacity, ton; PO (PO)i，kThe pollutant discharge amount of the k terminal treatment technology is used for industry i, and is ton; y isi，kThe percentage of the enterprise number adopting the kth tail end processing technology in the enterprise number of the industry is I; ei，kNumber of enterprises using the first end-processing technique for industry i; YOi，kThe percentage of pollutant discharge after the treatment of the kth tail end treatment technology is defined as the percentage of the pollutant discharge in the industry i; PO (PO)iThe discharge amount of industry i is ton;
further focusing on pollution production process and terminal treatment technology, the main VOCs pollution production and discharge process in various industries in Lanzhou city is more concentrated, and the direct discharge rate of the industrial industry related to VOCs discharge is higher. The actual removal rate of the contaminants is the product of the abatement facility removal efficiency and the plant operating level. The actual removal rate of pollutants by a certain treatment facility is directly influenced by the actual operation rate K value of the treatment facility. The percentage of enterprises with K value of more than 0.8 in Lanzhou city is only 58.30%, fewer enterprises implementing terminal treatment are provided, the operating conditions of the terminal treatment facilities are poor (see figure 10), the operating conditions of the terminal treatment facilities in the whole Gansu province are not optimistic, the operating efficiency of the terminal treatment facilities in Shenzhen with high clean production level is high, and the removal rate of the adopted terminal treatment technology is high.
The main product pollution discharge process is reformed and treated, and the industrial pollution emission reduction requirement can be quickly realized. Taking 2319, 3352, 2651 and 2926 industries as examples, tables 2 and 3 show that the pollution production intensity of the industries is higher, the removal rate of the end treatment technology is lower, and the direct discharge rate is extremely high.
2319 VOCs production in the industry mainly comes from the use of solvent-based ink, and more than 95% of enterprises are directly discharged without end treatment. The pollution intensity of the process produced by adopting the solvent type lithographic ink in Lanzhou city is 1.01 times and nearly 12 times that of the process in Gansu province and Shenzhen city respectively, and the pollution intensity of the process in Lanzhou city reaches the level of the Shenzhen city, so that the generation amount of 409.76t VOCs is reduced. Although the yield of VOCs printed by the water-based intaglio ink in Lanzhou is relatively low, the production intensity of VOCs is 869 times that of the process in Shenzhen, and if the production intensity of VOCs can reach the production level of the Shenzhen, the yield of VOCs is reduced by 11.40 t. If the industry replaces the industry with the water-based ink, a cleaner water-based gravure ink is pushed to reach the pollution level of Shenzhen city, and the generation amount of 447.76t VOCs is reduced. 2319 the direct discharge rate of the industry is higher, the percentage of enterprises adopting the all-closed-adsorption/catalytic combustion method with higher removal efficiency is smaller, the direct discharge rate is higher, VOCs which are directly discharged and treated by the technology with lower removal rate are treated by the all-closed-adsorption/catalytic combustion method, and the discharge amount of 305.62t of VOCs is reduced; VOCs treated by the technology with lower removal rate and in the direct drainage are treated by other (UV photolysis) adopted in Shenzhen market, so that 372.68t of VOCs emission is reduced. The industry 2319 has both source and end emission reduction potential.
2651 there is only one main pollution-producing process in the industry, and the pollution-producing intensity is comparable to that in Gansu province, and the main pollution-producing process in the industry is difficult to correspond to Shenzhen city, so the industry temporarily gives priority to terminal emission reduction. VOCs directly discharged in the industry are treated by a heat accumulating type thermal combustion method with high removal rate, so that 3645.92t of VOCs discharge amount is reduced. Industry 2651 has only had terminal abatement potential for a while.
2926, the pollution intensity of the process is 1.29 times and 18.21 times that of Gansu province and Shenzhen city, respectively, and if the pollution intensity of the process in Lanzhou city reaches the average level of Gansu province, the generation amount of 69.95t VOCs is reduced, and if the pollution intensity reaches the level of Shenzhen city, the generation amount of 295.71t VOCs is reduced. The industry has higher straight-discharge rate, the removal efficiency of the tail end treatment technology is lower, and other (activated carbon adsorption) (18.9%) and heat accumulating type thermal combustion methods (68%) with higher removal efficiency are adopted in Gansu province and Shenzhen city respectively for treatment. If all other treatments (activated carbon adsorption) are adopted, the discharge amount of VOCs is reduced by 1.31 t; if the heat accumulating type thermal combustion method is adopted for treatment, the discharge amount of VOCs is reduced by 13.49 t. Industry 2926 has both process and end abatement potential.
3352 the main pollution production process in the industry is only one, the pollution production intensity is equivalent to that in Gansu province, but is 187.94 times that in Shenzhen city, and if the pollution production intensity of the process in Lanzhou city reaches the level of that in Shenzhen city, the generation amount of 275.65t VOCs is reduced. The direct discharge rate of the industry is high, the removal rate of the adopted tail end treatment technology is low, and the VOCs emission reduction in the industry focuses on improving the collection rate and improving the tail end treatment efficiency. Industry 3352 has only temporary process abatement potential.
By analyzing the main pollution production process and the terminal treatment condition of each industry, the source, the process and the terminal emission reduction potential of the emission reduction industries (I) and (III) are respectively measured and calculated. As shown in fig. 11, some industries temporarily have only terminal emission reduction potential, some industries have only process emission reduction potential, and some industries have both source emission reduction potential and process and terminal emission reduction potential. Therefore, the present embodiment divides the emission reduction industries (i) and (iii) into five categories (see fig. 12), which are respectively the current situation that there is no emission reduction potential, only tail-end emission reduction potential, only process emission reduction potential, process-tail-end synergy potential, and source-process-tail-end synergy emission reduction potential.
In particular, the annual polyethylene yield of the 2651 industry in Lanzhou city exceeds 60 ten thousand tons, while the annual polyethylene yield of Shenzhen city is only 52 tons, and the polyethylene yield of Shenzhen is not in an order of magnitude, but the pollution intensity of Shenzhen is smaller, which is possibly caused by different product categories of two places. In addition, the current production process of polyethylene is mature, and the potential of further clean production is small. Therefore, the clean production and emission reduction of the process in Lanzhou is not suitable according to the pollution intensity of the process for producing polyethylene in Shenzhen. 2651 the other acrylonitrile production process with high pollution production in Gansu province has pollution intensity equivalent to that of Shenzhen. Therefore, the 2651 industry only measures terminal emission reduction potential and temporarily does not consider clean production emission reduction. S3, bottom-up emission reduction potential assessment
Based on the recognition results of the pollution production process and the tail end treatment condition of each industry by S2, the difference between the pollution production level of the specific production process and the corresponding industry of the benchmarking area is analyzed, the clean production reconstruction and the tail end treatment upgrade are performed, and the collaborative emission reduction coefficient of the industry with the process-tail end collaborative emission reduction potential and the source-process-tail end collaborative emission reduction potential is measured and calculated by a Java operation program.
The calculation formulas of the emission reduction potentials of the source, the process and the tail end are respectively as follows:
the objective function of the source-process-terminal cooperative emission reduction potential is as follows:
MinΔIGi＝IGi，t-IGi，0
MaxΔηi＝ηi，k-ηi，0
the constraint conditions are as follows:
MinΔIGi,jS＝IGi,jS-IGi,j
MinΔIGi,jP＝IGi,jP-IGi,j
MaxΔηi＝ηi,k-ηi,0
ηi,0≥0
ηi,k≥0
0≤αi+βi≤1
0≤αi+βi+γi＜2
0≤αi≤1
0≤βi≤1
0≤γi≤1
wherein, Delta P is the emission reduction potential of the assessment area, Qp/mIs the amount of the product or the raw and auxiliary materials,
the sewage production coefficient after the clean production of the industry i,
is the current pollution coefficient, eta of the industry ii,kIs the actual removal rate, eta, of the industrial i tail end after emission reductioni,0Is the current actual removal rate of industry i, POiIs the current pollutant discharge amount of industry i, POATo evaluate the allowable emissions in a region, Δ POi,SReducing and discharging potential, delta PO, for the source of industry ii,PFor Process abatement potential of industry i, Δ POi,EFor the terminal emission reduction potential of industry i, alphaiEmission reduction potential coefficient, beta, for the source of industry iiPotential coefficient of process emission reduction, gamma, for industry iiGV, the terminal emission reduction potential coefficient of industry iiIs the total industrial value of industry i, IGi，jsAfter source emission reduction for ith and jth pollutant production process in industryThe pollutant generation intensity of (2) ton/billion yuan; IG (air insulated gate bipolar translator)i，jThe pollutant generation intensity of the jth pollutant generation process in the industry is ton/hundred million yuan; delta IGi,jSGenerating an intensity difference value of ton/hundred million yuan for the pollutant before and after source emission reduction in the ith pollutant generation process of the industry; delta IGi，jpGenerating an intensity difference value of ton/hundred million yuan for the pollutants before and after the process of emission reduction of the ith pollutant generation process in the industry; IG (air insulated gate bipolar translator)i，jPThe method is characterized in that the method generates the pollutant generation intensity of ton/hundred million yuan after the process emission reduction of the ith pollutant generation process of the industry; PG (Picture experts group)iThe amount of pollutants is ton in industry i; Δ ηiIs the difference value of the actual removal rate before and after the emission reduction of the tail end of the industry i percent.
The results of the measurements are shown in FIGS. 13 and 14, respectively.
The potential for emission reduction of VOCs emission reduction industry in Lanzhou city is shown in Table 4
TABLE 4 maximum emission reduction potential of each emission reduction industry in Lanzhou City
The data of the pollutant discharge amount in the above embodiment 1 and embodiment 2 is derived from a monitoring method or a coefficient method, wherein the calculation formula of the pollutant discharge amount in the coefficient method is as follows:
in the formula, POiThe method is characterized in that the method is applicable to industry i, wherein the current pollutant discharge amount is ton; qp/mThe amount of the product or raw auxiliary materials is ton;
the current pollution coefficient of the industry i; etai,tTreatment efficiency of treatment measures after tail end emission reduction is percent.
The above examples 1 and 2 correspond to two strategies, respectively. The first is that there is currently a clear emission reduction target; the second category is that the distribution under different potentials can be measured, despite the current presence or absence of emission reduction targets.
The main difference of the two strategies is considered in the measurement of emission reduction potential of three parts of source, process and tail end: source delta PG under two strategiessProcess Δ PGpThe emission reduction potential is the same; different in the terminal Δ PGeMeasurement and calculation of emission reduction potential, the emission reduction potential of a tail end is measured and calculated on the premise of emission reduction at a source and in a process in embodiment 1, and the emission reduction potential of the tail end is only seen in embodiment 2 (when emission reduction at the source and in the process is not performed).
Finally, it should be noted that the above is only for illustrating the technical solution of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred arrangement, it should be understood by those skilled in the art that the technical solution of the present invention (such as the application of various formulas, the sequence of steps, etc.) can be modified or equivalently replaced without departing from the spirit and scope of the technical solution of the present invention.
Claims (3)
1. An industrial industry source-process-terminal overall process collaborative emission reduction potential assessment method is characterized by comprising the following steps:
s1, calculating the top-down emission reduction potential difference value based on the situation analysis
S11, determining the target area:
according to the industrial structure of the area to be evaluated, selecting an area which is similar to the industrial structure of the area to be evaluated and has the pollution discharge performance obviously superior to the level of the area to be evaluated as a benchmarking area;
s12, identifying emission reduction industry categories:
according to two dimensions of emission volume ratio (X%) and emission intensity (Z%), classifying the industrial industries of the area to be evaluated into an emission reduction industry (I), an emission reduction industry (II), an emission reduction industry (III) and the like;
the emission reduction industry category identification criterion is as follows: selecting industries with Z% of pollutant emission amount and pollutant emission intensity less than X% of the maximum emission intensity of a region as an emission reduction industry (I); selecting industries with Z% of pollutant emission amount and pollutant emission intensity more than or equal to X% of the maximum emission intensity of the region as an emission reduction industry (III); selecting an industry with the pollutant emission amount of Z% and the pollutant emission intensity of X% or more of the maximum emission intensity of the region as an emission reduction industry (II); other industries are of other classes;
in the identification of the emission reduction industry category, the selection principle of X and Z is as follows: the X value needs to be selected so that the emission occupation ratio of the covered industry is high; z is selected so that the industry with greater emission intensity is not classified into the "other" category;
s13, emission reduction potential difference measurement:
measuring and calculating the Clean Production Potential (CPP), the tail end emission reduction potential (EPP), the Benchmarking Mode Potential (BMP) and the cooperative emission reduction potential (CP) of the corresponding industries of the area to be evaluated and the benchmarking area by different industries, thereby determining the industrial industry with larger emission reduction potential in the area to be evaluated;
CPPi＝GVi×ΔIGi×(1-ηi，0)
EPPi＝-PGi×Δηi
BMPi＝GVi×ΔIOi
CPi＝GVi×IGi,2×(1-ηi,2)-POi
in the formula, i is a subclass industry in national economy industry classification codes; CPPiThe potential of clean production is measured from top to bottom, namely ton; GViIs the total industrial value of industry i, billion yuan; delta IGiThe difference value of the pollution production intensity of the industry i after emission reduction and the current pollution production intensity is ton/hundred million yuan; etai，0Actual removal rate,%, of the current contaminants of industry i; EPPiThe terminal emission reduction potential is measured from top to bottom, namely ton; PG (Picture experts group)iThe pollutant production amount of industry i is ton; Δ ηiThe difference value of the actual removal rate after the emission reduction of the industry i and the current removal rate is percent; BMPiThe measurement is the marker post mode potential measured from top to bottom, namely ton; delta IOiThe difference value of emission intensity between the emission reduction of the industry i and the current emission intensity is ton/hundred million yuan; CP (CP)iThe potential of cooperative emission reduction is measured from top to bottom, namely ton; IG (air insulated gate bipolar translator)i，2The sewage production intensity of the trade i in the benchmarking area is ton/hundred million yuan; etai，2Actual removal rate of the benchmarking area industry i,%; PO (PO)iThe method is used for discharging the pollutants of industry i in tons;
s2, emission characteristic analysis
Aiming at the industrial industries with larger emission reduction potential in the area to be evaluated determined by S1 measurement and calculation, performing pollution production process identification and terminal treatment condition identification in different industries according to the following formulas, wherein the terminal treatment condition identification comprises calculation of actual removal rate, enterprise quantity ratio and emission ratio;
the main pollution production process of a certain industry is determined by the following formula:
the pollutant production amount of the production process in the industry i is sorted from large to small, the first 85 percent of the total amount is taken and determined as the main product process of the industry;
in the formula, PGi，jThe pollutant production amount of the production process in the ith industry is ton; PG (Picture experts group)iThe pollutant production amount of industry i is ton;
the end treatment condition identification formula is as follows:
actual removal rate
Enterprise number ratio using jth end treatment technique
Ratio of discharge to discharge
In the formula, k is the kth terminal processing technology adopted by the industry; etai，kTo moveActual removal rate,%, of the kth end treatment technique of industry i; PG (Picture experts group)i，kPollutant throughput for industry i using kth end treatment technology, ton; PO (PO)i，kThe pollutant discharge amount of the k terminal treatment technology is used for industry i, and is ton; y isi，kThe percentage of the enterprise number adopting the kth tail end processing technology in the enterprise number of the industry is I; ei，kNumber of enterprises using the first end-processing technique for industry i; YOi，kThe percentage of pollutant discharge after the treatment of the kth tail end treatment technology is defined as the percentage of the pollutant discharge in the industry i; PO (PO)iThe discharge amount of industry i is ton;
s3, bottom-up emission reduction potential assessment
Analyzing the difference between the product and sewage level of a specific production process and the corresponding industry of a benchmark region based on the recognition results of S2 on the product and sewage process and the tail end treatment condition of each industry, respectively measuring and calculating the emission reduction potential of a source, a process and a tail end and the synergistic emission reduction potential of the source-process-tail end whole process by a method of a computer ternary linear equation including a Python exhaustion method through the clean production reconstruction and the tail end treatment upgrading;
the Python exhaustive method includes the following two calculation methods:
the calculation formulas of the emission reduction potential of the source, the process and the tail end of the first calculation mode are respectively as follows:
the objective function of the source-process-terminal overall process collaborative emission reduction potential measurement and calculation is as follows:
MinΔIGi＝IGi，t-IGi，0
MaxΔηi＝ηi，k-ηi，0
the constraint conditions are as follows:
0≤α≤100％
0≤β≤100％
0≤γ≤100％
in the formula: delta P is the difference value between the emission reduction and the current emission amount, and is ton; PO (PO)iThe method is characterized in that the method is the current discharge amount of industry i, namely ton; qp/mThe amount of the product or raw auxiliary materials is ton;
the pollution production coefficient of the industry i after clean production is implemented;
the current pollution coefficient of the industry i; etai,kActual removal rate,%, after emission reduction for the k-th tail end technology used in industry i; etai,0Is the current actual removal rate,%, of industry i; delta PGsThe potential for emission reduction from the source is ton; delta PGpTon is the potential of process emission reduction; delta PGeThe potential for end emission reduction, ton; alpha is a source emission reduction potential coefficient; beta is a process emission reduction potential coefficient; gamma is a terminal emission reduction potential coefficient; delta IGiThe intensity difference value of ton/hundred million yuan is generated between the emission reduction of the industry i and the current pollutants; IG (air insulated gate bipolar translator)i，tThe pollution intensity of the industry i after emission reduction is ton/hundred million yuan; IG (air insulated gate bipolar translator)i，0The current pollution intensity of the industry i is ton/hundred million yuan; delta IGi，jpThe difference value of the pollution intensity of the j product-raw material-process of the industry i after emission reduction and the current pollution intensity is ton/hundred million yuan; IG (air insulated gate bipolar translator)i，jThe current pollutant generation intensity of the j product-raw material-process of the industry i is ton/billion yuan; IG (air insulated gate bipolar translator)i，jsThe pollution intensity of the j product of the industry i, namely raw material, after emission reduction of a process source is ton/hundred million yuan; PG (Picture experts group)i，tThe method is characterized in that the method is used for producing ton of pollutants after process emission reduction and source emission reduction in industry i; PO (PO)AThe allowable discharge amount of pollutants in a target area is ton;
the calculation formulas of the emission reduction potential of the source, the process and the tail end of the second calculation mode are respectively as follows:
the objective function of the source-process-terminal overall process collaborative emission reduction potential measurement and calculation is as follows:
MinΔIGi＝IGi，t-IGi，0
MaxΔηi＝ηi，k-ηi，0
the constraint conditions are as follows:
MinΔIGi,jS＝IGi,jS-IGi,j
MinΔIGi,jP＝IGi,jP-IGi,j
MaxΔηi＝ηi,k-ηi,0
ηi,0≥0
ηi,k≥0
0≤αi+βi≤1
0≤αi+βi+γi＜2
0≤αi≤1
0≤βi≤1
0≤γi≤1
wherein, Delta P is the emission reduction potential of the assessment area, Qp/mIs the amount of the product or the raw and auxiliary materials,
the sewage production coefficient after the clean production of the industry i,
is the current pollution coefficient, eta of the industry ii,kThe actual removal rate eta of the industrial i tail end after emission reductioni,0Is the current actual removal rate of industry i, POiFor industry i Current pollutant emissions, POATo evaluate the allowable emissions in a region, Δ POi,SDelta PO, the Source emission reduction potential of industry ii,PFor Process abatement potential of industry i, Δ POi,EFor the terminal emission reduction potential of industry i, alphaiEmission reduction potential coefficient, beta, for the source of industry iiPotential coefficient of process emission reduction, gamma, for industry iiGV, the terminal emission reduction potential coefficient of industry iiIs the total industrial value of industry i, IGi，jsThe method is characterized in that the method is used for generating the pollutant with the intensity of ton/hundred million yuan after source emission reduction for the jth pollutant generation process in the industry; IG (air insulated gate bipolar translator)i，jThe pollutant generation intensity of the jth pollutant generation process in the industry is ton/hundred million yuan; delta IGi,jSFor the tradeGenerating an intensity difference of ton/hundred million yuan of pollutants before and after source emission reduction in the jth pollutant generation process; delta IGi，jpGenerating an intensity difference value of ton/hundred million yuan for the pollutants before and after the process emission reduction of the ith pollutant generation process in the industry; IG (air insulated gate bipolar translator)i，jPThe method is characterized in that the method generates the pollutant generation intensity of ton/hundred million yuan after the process emission reduction of the ith pollutant generation process of the industry; PG (Picture experts group)iThe amount of pollutants is ton in industry i; Δ ηiIs the difference value of the actual removal rate before and after the emission reduction of the tail end of the industry i percent.
2. The method according to claim 1, wherein the data of the pollutant emission is derived from a monitoring method or a coefficient method, wherein the formula for calculating the pollutant emission by the coefficient method is as follows:
in the formula, POiThe method is characterized in that the method is applicable to industry i, wherein the current pollutant discharge amount is ton; qp/mThe amount of the product or raw auxiliary materials is ton;
the current pollution coefficient of the industry i; etai,tTreatment efficiency of treatment measures after tail end emission reduction is percent.
3. The evaluation method according to claim 1 or 2, wherein the contaminants include water contaminants and atmospheric contaminants.
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| CN115049312B (en) * | 2022-07-22 | 2024-08-06 | 中国环境科学研究院 | Source-process-tail end collaborative emission reduction potential evaluation system and method based on pollution discharge production process |
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| CN111967792A (en) * | 2020-08-28 | 2020-11-20 | 中国科学院大气物理研究所 | Rapid quantitative evaluation method and system for atmosphere pollution prevention and control scheme |
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