Greenhouse gas emission reduction accounting method in whole process of collection, transportation and treatment of construction wastes

Abstract

The invention discloses a greenhouse gas emission reduction accounting method in the whole process of collection, transportation and treatment of construction waste, and relates to the technical field of greenhouse gas emission. Calculating the project greenhouse gas emission amount in the whole construction waste treatment process according to the greenhouse gas accounting model in the whole construction waste treatment process; under the datum line scene, calculating the greenhouse gas baseline emission amount in the whole process of construction waste treatment according to a construction waste whole process baseline accounting model; in the reckoning period of the construction waste treatment project, the reference line scene is a greenhouse gas emission scene of construction waste recycling or a greenhouse gas emission scene of construction waste non-recycling; and subtracting the project greenhouse gas emission amount in the first unit time under the project scene from the greenhouse gas baseline emission amount in the second unit time under the baseline scene to obtain the greenhouse gas emission reduction amount. The calculation accuracy of greenhouse gas emission reduction can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of greenhouse gas emissions, and in particular to a method for calculating greenhouse gas emission reductions during the entire process of construction waste collection, transportation and treatment. Background Art

[0002] Greenhouse gas emissions accelerate the process of global warming. Buildings consume a lot of natural resources and energy during construction and operation, and are one of the main sources of greenhouse gas emissions. At present, most of the research on construction waste reduction and disposal focuses on the recycling of construction waste resources, but the research on the reduction potential of construction waste has not yet formed a system, resulting in a lack of data support for promoting greenhouse gas emission reduction in the construction industry. Therefore, there is an urgent need for a method to accurately calculate the carbon reduction potential in the process of construction waste resource utilization. Summary of the invention

[0003] The purpose of this application is to provide a method for calculating greenhouse gas emission reductions during the entire process of construction waste collection, transportation and treatment, which can improve the accuracy of greenhouse gas emission reduction calculations.

[0004] To achieve the above objectives, this application provides the following solutions:

[0005] This application provides a method for calculating greenhouse gas emission reduction in the entire process of construction waste collection, transportation and treatment, including:

[0006] In the project scenario of the construction waste treatment and disposal project, the greenhouse gas emissions of the project in the whole process of construction waste treatment and disposal are calculated according to the greenhouse gas accounting model of the whole process of construction waste treatment and disposal; the boundary scope of the construction waste treatment and disposal project includes at least one of the classified collection of construction waste, classified transportation of construction waste, pre-treatment of construction waste, resource utilization of construction waste and final disposal of construction waste;

[0007] Under the baseline scenario, the baseline greenhouse gas emissions of the entire process of construction waste treatment and disposal are calculated based on the baseline accounting model for the entire process of construction waste; during the accounting period of the construction waste treatment and disposal project, the baseline scenario is a greenhouse gas emission scenario of construction waste resource utilization or a greenhouse gas emission scenario of construction waste non-resource utilization;

[0008] During the accounting period of the construction waste treatment and disposal project, the greenhouse gas emissions of the project in the first unit time under the project scenario are subtracted from the greenhouse gas baseline emissions in the second unit time under the baseline scenario to obtain the greenhouse gas emission reduction for the entire process of construction waste treatment and disposal between the first unit time and the second unit time.

[0009] Optionally, the construction waste pretreatment includes construction waste screening, cleaning and compression molding;

[0010] The final disposal of the construction waste includes resource utilization of construction waste and landfill of construction waste.

[0011] Optionally, the greenhouse gas accounting model for the entire process of construction waste treatment and disposal is expressed as:

[0012] T i ,y=A i ,y+B i ,y+C i ,y+D i ,y+E i ,y+F i ,yG i ,y;

[0013] Among them, T i , y is the greenhouse gas emission of the project in the yth year of the i-th type of construction waste, A i , y is the greenhouse gas emissions generated by the collection of construction waste of type i in year y, B i , y is the greenhouse gas emissions generated by the on-site backfilling of construction waste of type i in year y, C i ,y is the greenhouse gas emissions generated by the transportation of the i-th type of construction waste in the y-th year, D i , y is the greenhouse gas emissions generated by the pretreatment process of construction waste of type i in year y, E i , y is the greenhouse gas emissions generated by the final disposal of the i-th type of construction waste in the yth year, F i ,y is the greenhouse gas leakage generated by the final disposal process of the i-th type of construction waste in the y-th year, G i ,y is the greenhouse gas emission equivalent generated by the resource utilization of the i-th type of construction waste in the y-th year without a project.

[0014] Optionally, A i ,y=(H i ,y×(PA i ,y×EF e +IA i ,y×EF c ));

[0015] B i ,y=(H i ,y×(PB i ,y×EF e +IB i ,y×EF c ));

[0016] C i ,y=(H i ,y×(PCi ,y×EF e +IC i ,y×EF c ));

[0017] D i ,y=(H i ,y×(PD i ,y×EF e +ID i ,y×EF c ));

[0018] E i ,y=(H i ,y×(PE i ,y×EF e +IE i ,y×EF c ));

[0019] G i ,y=K m ,y×EF m ;

[0020] Among them, H i ,y is the amount of construction waste of type i in year y, PA i ,y is the power consumption of the construction waste classification and collection process of the i-th type of construction waste in the y-th year, IA i ,y is the unit fossil fuel consumption of the construction waste classification and collection process of the i-th type of construction waste in the y-th year, EF e EF is the emission factor of the baseline scenario of the power grid in the project area in that year. c PB is the carbon dioxide emission factor equivalent of fossil fuels; i ,y is the power consumption of the on-site backfilling process of the i-th type of construction waste in the yth year, IB i ,y is the unit fossil fuel consumption of the on-site backfilling process of the i-th type of construction waste in the yth year, PC i ,y is the electricity consumption generated by the transportation of the i-th type of construction waste in the yth year, IC i ,y is the unit fossil fuel consumption generated by the transportation of construction waste of type i in year y, PD i ,y is the electricity consumption generated by the pretreatment process of the i-th type of construction waste in the y-th year, ID i ,y is the unit fossil fuel consumption generated by the pretreatment process of construction waste of type i in year y, PE i ,y is the electricity consumption generated by the final disposal process of the i-th type of construction waste in the y-th year, IE i ,y is the unit fossil fuel consumption generated by the final disposal process of the i-th type of construction waste in the y-th year, Km ,y is the output of the mth type of product generated in the construction waste resource recovery project in year y, EF m The greenhouse gas emission factor for producing the mth type of product in the project area.

[0021] Optionally, when the baseline scenario is the greenhouse gas emission scenario of the construction waste resource utilization, the construction waste full process baseline accounting model is expressed as:

[0022] T i ,x=A i ,x+B i ,x+C i ,x+D i ,x+E i ,x+F i ,xG i ,x;

[0023] Among them, T i , x is the baseline greenhouse gas emission of the i-th type of construction waste in the x-th year, A i , x is the greenhouse gas emissions generated by the collection of construction waste of type i in year x, B i , x is the greenhouse gas emissions generated by the on-site backfilling of construction waste of type i in year x, C i , x is the greenhouse gas emissions generated by the transportation of the i-th type of construction waste in the x-th year, D i , x is the greenhouse gas emissions generated by the pretreatment process of construction waste of type i in year x, E i , x is the greenhouse gas emissions generated by the final disposal of the i-th type of construction waste in the xth year, F i , x is the greenhouse gas leakage generated by the final disposal process of the i-th type of construction waste in the x-th year, G i ,x is the greenhouse gas emission equivalent generated by the resource utilization of the i-th type of construction waste in the x-th year without a project.

[0024] Optionally, when the baseline scenario is a greenhouse gas emission scenario in which the construction waste is not recycled, the baseline accounting model for the entire construction waste process is expressed as:

[0025] T i ,y'=A i ,y'+B i ,y'+C i ,y'+D i ,y'+E i ,y'+F i ,y';

[0026] Among them, T i, y' is the greenhouse gas emission of the project in the y'th year of the i-th type of construction waste, A i , y' is the greenhouse gas emissions generated by the collection of construction waste of type i in year y', B i , y' is the greenhouse gas emissions generated by the on-site backfilling of the i-th type of construction waste in the y'th year, C i ,y' is the greenhouse gas emissions generated by the transportation of the i-th type of construction waste in the y'th year, D i , y' is the greenhouse gas emissions generated by the pretreatment process of the i-th type of construction waste in the y'th year, E i ,y' is the greenhouse gas emissions generated by the final disposal of the i-th type of construction waste in the yth year, F i ,y' is the calculation of greenhouse gas leakage generated by the final disposal process of construction waste of type i in year y.

[0027] According to the specific embodiments provided in this application, this application discloses the following technical effects:

[0028] The present application provides a method for calculating greenhouse gas emission reductions throughout the entire process of construction waste collection, transportation and treatment. During the accounting period of a construction waste treatment and disposal project, the baseline scenario is one of a plurality of preset baseline scenarios, thereby achieving determination of the baseline scenario based on actual conditions. The boundary range of the construction waste treatment and disposal project is combined based on actual conditions from the classified collection of construction waste, classified transportation of construction waste, pre-treatment of construction waste, resource utilization of construction waste and final disposal of construction waste, so that the calculation results are consistent with the actual conditions, thereby improving the accuracy of the greenhouse gas emission reduction calculations. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A flowchart of a method for calculating greenhouse gas emission reductions during the entire process of construction waste collection, transportation and treatment is provided in accordance with an embodiment of the present application. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0033] This application provides a method for calculating greenhouse gas emission reduction during the entire process of construction waste collection, transportation and treatment. Figure 1 As shown, the greenhouse gas emission reduction accounting method in the whole process of construction waste collection, transportation and treatment includes:

[0034] Step 101: In the project scenario of the construction waste treatment and disposal project, according to the regional construction waste treatment and disposal model, determine the boundary range for greenhouse gas emission reduction accounting of the construction waste treatment and disposal project, the boundary range includes at least one of the classified collection of construction waste, classified transportation of construction waste, temporary storage of construction waste, resource utilization of construction waste and landfill or incineration disposal of construction waste. Based on the boundary range, according to the greenhouse gas accounting model of the whole process of construction waste treatment and disposal, calculate the greenhouse gas emissions of the project in the whole process of construction waste treatment and disposal.

[0035] The regional construction waste treatment and disposal model and the boundary range of greenhouse gas emission reduction accounting are matched one-to-one in advance based on actual conditions, that is, one regional construction waste treatment and disposal model corresponds to one boundary range.

[0036] Step 102: Under the baseline scenario, the baseline greenhouse gas emissions of the entire process of construction waste treatment and disposal are calculated based on the baseline accounting model of the entire process of construction waste treatment and disposal; during the accounting period of the construction waste treatment and disposal project, the baseline scenario is one of a plurality of preset baseline scenarios.

[0037] Step 103: During the accounting period of the construction waste treatment and disposal project, the greenhouse gas emissions of the project in the first unit time under the project scenario are subtracted from the greenhouse gas baseline emissions in the second unit time under the baseline scenario to obtain the greenhouse gas emission reduction for the entire construction waste treatment and disposal process between the first unit time and the second unit time.

[0038] The preset baseline scenarios include construction material mining scenarios, greenhouse gas emission scenarios for construction waste resource utilization, or greenhouse gas emission scenarios for construction waste non-resource utilization; the construction material mining scenarios include the mining and transportation processes when making construction products.

[0039] The treatment of construction waste includes collection, transportation, storage, pretreatment, and resource utilization of construction waste. The pretreatment includes screening, cleaning and compression molding of construction waste. The final disposal of construction waste includes incineration of construction waste and landfill of construction waste.

[0040] During the accounting period of the construction waste treatment and disposal project, the baseline scenario of this application is the greenhouse gas emission scenario of the resource utilization of construction waste or the greenhouse gas emission scenario of the non-resource utilization of construction waste, which realizes the determination of the baseline scenario according to the actual situation. The boundary scope of the construction waste treatment and disposal project is combined according to the actual situation from the classification and collection of construction waste, classification and transportation of construction waste, pretreatment of construction waste, resource utilization of construction waste and final disposal of construction waste, so that the calculation results are in line with the actual situation, the accuracy of the greenhouse gas emission reduction calculation is improved, the construction of the greenhouse gas emission reduction methodology system in the construction waste treatment process is effectively promoted, and the greenhouse gas emission reduction in the construction industry is promoted.

[0041] In an exemplary embodiment, before step 101, the step also includes: determining the boundary scope, accounting period and greenhouse gas emission sources of the entire process of construction waste treatment and disposal of the project.

[0042] The accounting period of the construction waste treatment process is the time limit for applying for project emission reduction registration. It starts from the time when the project emission reduction is applied for registration by the project owner. The end time of the project life should be before the project is officially retired, and the maximum period shall not exceed a certain number of years, and the project accounting period must be within the project life range.

[0043] The types of greenhouse gases emitted by greenhouse gas emission sources in the construction waste treatment process include carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs) and sulfur hexafluoride (SF6).

[0044] This application arbitrarily combines the classified collection of construction waste, classified transportation of construction waste, temporary storage of construction waste, resource utilization of construction waste, and landfill or incineration disposal of construction waste within the boundary range according to actual needs.

[0045] In an exemplary embodiment, the present application also includes baseline scenario identification and additionality demonstration.

[0046] The additionality argumentation considers several situations: (1) the value of the construction waste resource product itself, the market value in the project area, and whether it will lead to poor subsequent financial indicators. (2) The construction waste resource utilization rate in the project area is lower than the construction waste resource utilization rate required in the area. (3) Whether there are technical barriers or product market sales for the construction waste project products.

[0047] In an exemplary embodiment, the greenhouse gas accounting model for the entire construction waste treatment and disposal process is expressed as: i ,y=A i ,y+B i ,y+C i ,y+D i ,y+E i ,yG i ,y+F i ,y.

[0048] Among them, T i , y is the greenhouse gas emission of the project in the yth year for the i-th type of construction waste, in tons of carbon dioxide equivalent (tCO2eq); A i , y is the greenhouse gas emissions generated by the classification and collection of construction waste of type i in year y, in tons of carbon dioxide equivalent (tCO2eq); B i , y is the greenhouse gas emissions generated by the on-site backfilling process of the i-th type of construction waste in the yth year, in tons of carbon dioxide equivalent (tCO2eq); C i , y is the greenhouse gas emissions generated by the transportation of the i-th type of construction waste in the yth year, in tons of carbon dioxide equivalent (tCO2eq); D i , y is the greenhouse gas emissions generated by the pretreatment process of construction waste of type i in year y, in tons of carbon dioxide equivalent (tCO2eq); E i , y is the greenhouse gas emissions generated by the final disposal process of the i-th type of construction waste in the yth year, in tons of carbon dioxide equivalent (tCO2eq); F i , y is the greenhouse gas emissions generated by the mining, production and transportation of raw materials corresponding to the i-th type of construction waste in year y, in tons of carbon dioxide equivalent (tCO2eq); G i ,y is the greenhouse gas emission equivalent (tCO2eq) generated by the resource utilization of the i-th type of construction waste in the yth year without a project.

[0049] Types of construction waste include construction debris, construction mud, construction garbage, demolition waste and decoration waste.

[0050] The greenhouse gas accounting model for the entire process of construction waste treatment and disposal is refined, including: A i ,y=(H i ,y×(PA i ,y×EF e +IA i ,y×EF c )); B i ,y=(H i ,y×(PB i,y×EF e +IB i ,y×EF c ));C i ,y=(H i ,y×(PC i ,y×EF e +IC i ,y×EF c ));D i ,y=(H i ,y×(PD i ,y×EF e +ID i ,y×EF c )); E i ,y=(H i ,y×(PE i ,y×EF e +IE i ,y×EF c )); G i ,y=K m ,y×EF m ×Z;F i ,y=(F m ,y×(PF i ,y×EF e +IF i ,y×EF c )).

[0051] Among them, H i ,y is the amount of construction waste of type i in year y (tons / year), PA i , y is the electricity consumption MWh in the process of collecting construction waste of type i in year y, IA i ,y is the unit fossil fuel consumption GJ in the process of classified collection of construction waste of type i in year y, EF e is the emission factor of the baseline scenario of the power grid in the project area in that year (tCO2eq / MWh), EF c is the carbon dioxide emission factor equivalent of fossil fuels (tCO2eq / GJ); PB i ,y is the power consumption of the on-site backfilling process of the i-th type of construction waste in the yth year, IB i ,y is the unit fossil fuel consumption of the on-site backfilling process of the i-th type of construction waste in the yth year, PC i ,y is the electricity consumption generated by the transportation of the i-th type of construction waste in the yth year, IC i ,y is the unit fossil fuel consumption generated by the transportation of construction waste of type i in year y, PD i,y is the electricity consumption generated by the pretreatment process of the i-th type of construction waste in the y-th year, ID i ,y is the unit fossil fuel consumption generated by the pretreatment process of construction waste of type i in year y, PE i ,y is the electricity consumption generated by the final disposal process of the i-th type of construction waste in the y-th year, IE i ,y is the unit fossil fuel consumption generated by the final disposal process of the i-th type of construction waste in the y-th year, PF i ,y is the unit fossil fuel consumption of the greenhouse gas emissions generated during the mining, production and transportation of construction raw materials, IF i ,y is the unit power consumption of construction raw materials in the process of raw material mining, production and transportation, K m , y is the output of the mth type of product generated in the construction waste resource recovery project in the yth year, F m ,y is the output of the mth product, K m , the quality of the construction raw materials mined at time y, EF m is the greenhouse gas emission factor for the mth product produced in the project area, Z is the product substitution coefficient (the quality of the product that cannot be made entirely from mined raw materials), where PA i ,y,PB i ,y,PC i ,y,PD i ,y,PE i , y are the unit fossil fuel consumption per unit production, IA i ,y,IB i ,y,IC i ,y、ID i ,y,IE i , y are the unit power consumption generated under unit production.

[0052] In an exemplary embodiment, when the baseline scenario is the greenhouse gas emission scenario of the construction waste resource utilization, that is, for the construction waste treatment and disposal project, when the greenhouse gas emissions are reduced through its own technology upgrade, the construction waste full process baseline accounting model is expressed as:

[0053] T i ,x=A i ,x+B i ,x+C i ,x+D i ,x+E i ,x+F i ,xG i ,x.

[0054] Among them, T i, x is the baseline greenhouse gas emission of the i-th type of construction waste in the x-th year, in tons of carbon dioxide equivalent (tCO2eq); A i , x is the greenhouse gas emissions generated by the collection of construction waste of type i in the xth year, in tons of carbon dioxide equivalent (tCO2eq); B i , x is the greenhouse gas emissions generated by the on-site backfilling process of the i-th type of construction waste in the xth year, in tons of carbon dioxide equivalent (tCO2eq); C i , x is the greenhouse gas emissions generated by the transportation of the i-th type of construction waste in the x-th year, in tons of carbon dioxide equivalent (tCO2eq); D i , x is the greenhouse gas emissions generated by the pretreatment process of construction waste of type i in year x, in tons of carbon dioxide equivalent (tCO2eq); E i , x is the greenhouse gas emissions generated by the final disposal process of the i-th type of construction waste in the xth year, in tons of carbon dioxide equivalent (tCO2eq); F i , x is the greenhouse gas emissions generated by the mining, production and transportation of raw materials corresponding to the i-th type of construction waste in the x-th year, in tons of carbon dioxide equivalent (tCO2eq). It is determined according to the timing of leakage in the construction waste treatment process of the specific project. If the amount is small, it can be ignored; G i ,x is the greenhouse gas emission equivalent generated by the resource utilization of the i-th type of construction waste in the x-th year without a project, in tons of carbon dioxide equivalent (tCO2eq).

[0055] The greenhouse gas accounting model for the entire process of construction waste treatment and disposal is refined, including: A i ,x=(H i ,x×(PA i ,x×EF e +IA i ,x×EF c )); B i ,x=(H i ,x×(PB i ,x×EF e +IB i ,x×EF c ));C i ,x=(H i ,x×(PC i ,x×EF e +IC i ,x×EF c ));D i ,x=(H i ,x×(PD i ,x×EF e +IDi ,x×EF c )); E i ,x=(H i ,x×(PE i ,x×EF e +IE i ,x×EF c )); G i ,x=K m ,x×EF m .

[0056] Among them, H i , x is the amount of construction waste of type i produced in year x (tons / year), PA i , x is the electricity consumption MWh of the construction waste classification and collection process of the i-th type of construction waste in the x-th year, IA i ,x is the unit fossil fuel consumption in the process of classified collection of construction waste of type i in year x, GJ, PB i , x is the power consumption of the on-site backfilling process of the i-th type of construction waste in the x-th year, IB i , x is the unit fossil fuel consumption of the on-site backfilling process of the i-th type of construction waste in the x-th year, PC i , x is the electricity consumption generated by the transportation of the i-th type of construction waste in the x-th year, IC i , x is the unit fossil fuel consumption generated by the transportation of construction waste of type i in year x, PD i , x is the power consumption generated by the pretreatment process of the i-th type of construction waste in the x-th year, ID i , x is the unit fossil fuel consumption generated by the pretreatment process of construction waste of type i in year x, PE i ,x is the electricity consumption generated by the final disposal process of the i-th type of construction waste in the x-th year, IE i , x is the unit fossil fuel consumption generated by the final disposal process of the i-th type of construction waste in the x-th year, K m , x is the output of the mth type of product generated in the construction waste resource project in the xth year, EF m Greenhouse gas emission factor (tCO2eq / t) for producing the mth type of product in the project area.

[0057] In an exemplary embodiment, when the baseline scenario is a greenhouse gas emission scenario in which the construction waste is not recycled, the baseline accounting model for the entire construction waste process is expressed as:

[0058] T i ,y'=A i ,y'+B i ,y'+C i ,y'+Di ,y'+E i ,y'+F i ,y'.

[0059] Among them, T i , y' is the baseline greenhouse gas emission of the i-th type of construction waste in the y'th year, A i , y' is the greenhouse gas emissions generated by the collection of construction waste of type i in year y', B i , y' is the greenhouse gas emissions generated by the on-site backfilling of construction waste of type i in year y', C i ,y' is the greenhouse gas emissions generated by the transportation of the i-th type of construction waste in the y'th year, D i , y' is the greenhouse gas emissions generated by the pretreatment process of the i-th type of construction waste in the y'th year, E i ,y' is the greenhouse gas emissions generated by the final disposal process of the i-th type of construction waste in the yth year. The disposal process is a non-resource process. i ,y' is the greenhouse gas emissions generated by the mining process of raw materials corresponding to the i-th type of construction waste in year y.

[0060] (1) For construction waste treatment and disposal projects, greenhouse gas emissions are reduced through technological upgrades. The baseline scenario is the greenhouse gas emission scenario before technological upgrades.

[0061] Greenhouse gas emission reduction is expressed as: DE xy =T i ,xT i ,y.

[0062] Among them, DE xy It represents the greenhouse gas emission reduction of the project between year x and year y, in tons of carbon dioxide equivalent (tCO2eq).

[0063] (2) If the baseline scenario is a greenhouse gas emission scenario with non-resource disposal.

[0064] Greenhouse gas emission reduction is expressed as: DE yy' =T i ,yT i ,y'.

[0065] Among them, DE yy' It represents the greenhouse gas emission reduction of the project in year y and year y', in tons of carbon dioxide equivalent (tCO2eq).

[0066] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, according to the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A method for calculating greenhouse gas emission reduction in the whole process of construction waste collection, transportation and treatment, characterized in that: The greenhouse gas emission reduction accounting method in the whole process of construction waste collection, transportation and treatment includes: In the project scenario of the construction waste treatment and disposal project, the boundary scope of greenhouse gas emission reduction accounting for the construction waste treatment and disposal project is determined according to the regional construction waste treatment and disposal model. The boundary scope includes at least one of the classified collection of construction waste, classified transportation of construction waste, temporary storage of construction waste, resource utilization of construction waste, and landfill or incineration of construction waste. Based on the boundary scope, according to the greenhouse gas accounting model for the whole process of construction waste treatment and disposal, the greenhouse gas emissions of the project in the whole process of construction waste treatment and disposal are calculated; Under the baseline scenario, the baseline greenhouse gas emissions of the entire process of construction waste treatment and disposal are calculated based on the baseline accounting model of the entire process of construction waste treatment and disposal; during the accounting period of the construction waste treatment and disposal project, the baseline scenario is one of a plurality of preset baseline scenarios; During the accounting period of the construction waste treatment and disposal project, the greenhouse gas emissions of the project in the first unit time under the project scenario are subtracted from the greenhouse gas baseline emissions in the second unit time under the baseline scenario to obtain the greenhouse gas emission reduction for the entire process of construction waste treatment and disposal between the first unit time and the second unit time.

2. According to the method for calculating greenhouse gas emission reduction in the whole process of construction waste collection, transportation and treatment in claim 1, the preset baseline scenario includes a construction material mining scenario, a greenhouse gas emission scenario of construction waste resource utilization, or a greenhouse gas emission scenario of construction waste non-resource utilization; The construction material mining scenario includes the mining and transportation process when making construction products.

3. The greenhouse gas emission reduction accounting method in the whole process of construction waste collection, transportation and treatment according to claim 1 is characterized in that: The greenhouse gas accounting model for the entire process of construction waste treatment and disposal is expressed as: T i ,y=A i ,y+B i ,y+C i ,y+D i ,y+E i ,y-G i ,y+F i ,y; Among them, T i , y is the greenhouse gas emission of the project in the yth year of the i-th type of construction waste, A i , y is the greenhouse gas emissions generated by the collection of construction waste of type i in year y, B i , y is the greenhouse gas emissions generated by the on-site backfilling of construction waste of type i in year y, C i ,y is the greenhouse gas emissions generated by the transportation of the i-th type of construction waste in the y-th year, D i , y is the greenhouse gas emissions generated by the pretreatment process of construction waste of type i in year y, E i , y is the greenhouse gas emissions generated by the final disposal of the i-th type of construction waste in the yth year, G i , y is the greenhouse gas emission equivalent generated by the resource utilization of the i-th type of construction waste in the yth year, F i , y is the greenhouse gas emissions generated during the mining, production, and transportation of raw materials corresponding to the i-th type of construction waste in the y-th year.

4. The greenhouse gas emission reduction accounting method in the whole process of construction waste collection, transportation and treatment according to claim 3 is characterized in that: A i ,y=(H i ,y×(PA i ,y×EF e +IA i ,y×EF c )); B i ,y=(H i ,y×(PB i ,y×EF e +IB i ,y×EF c )); C i ,y=(H i ,y×(PC i ,y×EF e +IC i ,y×EF c )); D i ,y=(H i ,y×(PD i ,y×EF e +ID i ,y×EF c )); It is i ,y=(H i ,y×(PE i ,y×EF e +IE i ,y×EF c )); G i ,y=K m ,y×EF m ×Z; F i ,y=(F m ,y×(PF i ,y×EF e +IF i ,y×EF c )) Among them, H i ,y is the amount of construction waste of type i in year y, PA i ,y is the power consumption of the construction waste classification and collection process of the i-th type of construction waste in the y-th year, IA i ,y is the unit fossil fuel consumption of the construction waste classification and collection process of the i-th type of construction waste in the y-th year, EF e EF is the emission factor of the baseline scenario of the power grid in the project area in that year. c PB is the carbon dioxide emission factor equivalent of fossil fuels; i ,y is the power consumption of the on-site backfilling process of the i-th type of construction waste in the yth year, IB i ,y is the unit fossil fuel consumption of the on-site backfilling process of the i-th type of construction waste in the yth year, PC i ,y is the electricity consumption generated by the transportation of the i-th type of construction waste in the yth year, IC i ,y is the unit fossil fuel consumption generated by the transportation of construction waste of type i in year y, PD i ,y is the electricity consumption generated by the pretreatment process of the i-th type of construction waste in the y-th year, ID i ,y is the unit fossil fuel consumption generated by the pretreatment process of construction waste of type i in year y, PE i ,y is the electricity consumption generated by the final disposal process of the i-th type of construction waste in the y-th year, IE i ,y is the unit fossil fuel consumption generated by the final disposal process of the i-th type of construction waste in the y-th year, PF i ,y is the unit fossil fuel consumption of the greenhouse gas emissions generated during the mining, production and transportation of construction raw materials, IF i ,y is the unit power consumption of construction raw materials in the process of raw material mining, production and transportation, K m , y is the output of the mth type of product generated in the construction waste resource recovery project in the yth year, F m ,y is the output of the mth product, K m , the quality of the construction raw materials mined at time y, EF m is the greenhouse gas emission factor for producing the mth type of product in the project area, and Z is the substitution coefficient of the product.

5. The greenhouse gas emission reduction accounting method in the whole process of construction waste collection, transportation and treatment according to claim 2 is characterized in that: When the baseline scenario is the greenhouse gas emission scenario of the construction waste resource utilization, the baseline accounting model of the whole process of construction waste is expressed as: T i ,x=A i ,x+B i ,x+C i ,x+D i ,x+E i ,x+F i ,x-G i ,x; Among them, T i , x is the baseline greenhouse gas emission of the i-th type of construction waste in the x-th year, A i , x is the greenhouse gas emissions generated by the collection of construction waste of type i in the xth year, B i , x is the greenhouse gas emissions generated by the on-site backfilling of construction waste of type i in year x, C i , x is the greenhouse gas emissions generated by the transportation of the i-th type of construction waste in the x-th year, D i , x is the greenhouse gas emissions generated by the pretreatment process of construction waste of type i in year x, E i , x is the greenhouse gas emissions generated by the final disposal of the i-th type of construction waste in the xth year, F i , x is the greenhouse gas emissions generated during the mining, production and transportation of raw materials corresponding to the i-th type of construction waste in the x-th year, G i ,x is the greenhouse gas emission equivalent generated by the resource utilization of the i-th type of construction waste in the x-th year without a project.

6. The greenhouse gas emission reduction accounting method in the whole process of construction waste collection, transportation and treatment according to claim 2 is characterized in that: When the baseline scenario is the greenhouse gas emission scenario of non-resourced construction waste, the baseline accounting model for the entire construction waste process is expressed as: T i ,y’=A i ,y’+B i ,y’+C i ,y’+D i ,y’+E i ,y’+F i ,y’; Among them, T i , y' is the greenhouse gas emission of the project in the y'th year of the i-th type of construction waste, A i , y' is the greenhouse gas emissions generated by the collection of construction waste of type i in year y', B i , y' is the greenhouse gas emissions generated by the on-site backfilling of the i-th type of construction waste in the y'th year, C i ,y' is the greenhouse gas emissions generated by the transportation of the i-th type of construction waste in the y'th year, D i , y' is the greenhouse gas emissions generated by the pretreatment process of the i-th type of construction waste in the y'th year, E i ,y' is the greenhouse gas emissions generated by the final disposal of the i-th type of construction waste in the yth year, F i ,y' is the greenhouse gas emissions generated by the mining process of raw materials corresponding to the i-th type of construction waste in year y.

7. The greenhouse gas emission reduction accounting method in the whole process of construction waste collection, transportation and treatment according to claim 1 is characterized in that: The greenhouse gases calculated in the greenhouse gas accounting model for the whole process of construction waste treatment and disposal and the baseline accounting model for the whole process of construction waste include carbon dioxide, nitrous oxide and methane.

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