Carbon emission reduction calculation method and system for industrial solid waste recycling

Abstract

The invention discloses a carbon emission reduction calculation method and system for industrial solid waste recycling. The carbon emission reduction calculation method comprises the following steps: replacing part of natural aggregate with industrial solid waste phosphogypsum to prepare a fiber reinforced cement board, and determining the blending proportion of the industrial solid waste phosphogypsum through a mix proportion test; calculating the blending mass of the industrial solid waste phosphogypsum; obtaining a carbon emission factor of the replaced natural aggregate, and calculating a carbon emission factor of the industrial solid waste phosphogypsum; and calculating the carbon emission reduction generated by the industrial solid waste phosphogypsum by adopting a carbon emission factor method. According to the method, the problems of lack of a carbon emission accounting method and poor calculation precision in current industrial solid waste resource utilization are solved, the carbon emission factor value is more reasonable, the carbon emission accounting result is more accurate, and carbon emission reduction and economic benefit achievement statistical analysis of industrial solid waste recycling are facilitated.

Description

Technical Field

[0001] The present invention belongs to the technical field of industrial solid waste carbon emission, and in particular to a method and system for calculating carbon emission reductions in industrial solid waste recycling. Background Art

[0002] As one of the major industrial solid wastes in my country, the environmental problems caused by long-term storage of phosphogypsum are becoming increasingly prominent, and the harmless treatment and comprehensive utilization of phosphogypsum are imminent. On the other hand, phosphogypsum has obvious resource characteristics. Its resource treatment can not only create economic benefits, but also have significant environmental benefits.

[0003] The resource utilization of industrial solid waste has good carbon reduction potential, but the specific carbon emission reduction benefits are mostly based on qualitative analysis or scenario assumptions. There is still a lack of more systematic calculation methods and quantitative indicators, which has caused great trouble in estimating the specific benefits of industrial solid waste reuse. In foreign countries, the carbon emission factor of solid waste is usually calculated as 50% of the replacement of new materials. However, phosphogypsum has a wide range of origins and complex composition. In particular, the soluble fluorophosphate in it puts forward different process treatment requirements for industrial solid waste processing equipment, which in turn leads to different energy consumption for industrial solid waste reprocessing. Therefore, the carbon emission factors of industrial solid waste are also different, and it is not appropriate to uniformly take the value as 50% of new materials.

[0004] Therefore, it is necessary to combine the application scenarios of industrial solid waste in fiber reinforced cement boards, calculate the carbon emissions in the production process of industrial solid waste recycling by analyzing the engineering quality requirements of industrial solid waste recycling and the composition characteristics of industrial solid waste, so as to make the economic benefit evaluation of carbon emission reduction of engineering applications of industrial solid waste more accurate and reasonable. Summary of the invention

[0005] The purpose of the present invention is to provide a method and system for calculating carbon emission reductions from industrial solid waste reuse, in view of the fact that there is currently no standard for the determination of carbon emission factors for industrial solid waste. The present invention proposes a method for determining carbon emission factors for industrial solid waste to improve the accuracy of carbon emission reduction benefit analysis for the use of industrial solid waste in fiber-reinforced cement boards, which is conducive to the accumulation of carbon emission data and the establishment of standards for the recycling of industrial solid waste.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] In a first aspect, the present invention provides a method for calculating carbon emission reductions from industrial solid waste reuse, comprising the steps of:

[0008] 1) Industrial solid waste phosphogypsum is used to replace part of the natural aggregate for preparing fiber reinforced cement board, and the mixing ratio of industrial solid waste phosphogypsum is determined to be w1 through a mix ratio test;

[0009] 2) Calculate the mixing mass M of industrial solid waste phosphogypsum 磷石膏=Mass of fiber reinforced cement board M 纤维增强水泥板 ×w1;

[0010] 3) Obtain the carbon emission factor F of the replaced natural aggregate 天然集料 , calculate the carbon emission factor F of industrial solid waste phosphogypsum 磷石膏 ;

[0011] 4) Calculate the carbon emission reduction C generated by industrial solid waste phosphogypsum using the carbon emission factor method a =M 磷石膏 ×(F 天然集料 -F 磷石膏 ).

[0012] Furthermore, in the step 1), the blending ratio w1 of the industrial solid waste phosphogypsum is the percentage of the blending mass of the industrial solid waste phosphogypsum to the mass of the fiber reinforced cement board, and w1 does not exceed 25%.

[0013] Furthermore, in step 3), the carbon emission factor F of industrial solid waste phosphogypsum is 磷石膏 The calculation method is as follows:

[0014] 31) Determine the calculation boundary of carbon emissions from industrial solid waste reuse: from the end of phosphogypsum stacking to the end of fiber reinforced cement board processing, and only consider the carbon emission reduction of replaced natural aggregates;

[0015] 32) Carbon emissions from industrial solid waste recycling C 总 =C 运输 +C 预处理 -C 堆放 ,in,

[0016] C 运输 The carbon emissions from transporting industrial solid waste from the industrial solid waste dump to the industrial solid waste recycling plant; C 运输 = Industrial solid waste phosphogypsum mass M 固 × Transportation distance L from industrial solid waste dump to industrial solid waste recycling plant × Carbon emission factor F per unit mass transportation distance 运输 ;

[0017] C 预处理 The carbon emissions from the pretreatment of industrial solid waste phosphogypsum; C 预处理 = Industrial solid waste phosphogypsum mass M 固 × Construction machinery efficiency index f × Energy carbon emission factor F 能 ;

[0018] C 堆放 Carbon emissions from direct dumping of industrial solid waste without resource utilization; C 堆放 = Industrial solid waste phosphogypsum mass M 固 / Bulk density of industrial solid waste phosphogypsum ρ堆 / Industrial solid waste phosphogypsum stacking height h×forestry carbon sink factor F 林 ;

[0019] 33) Carbon emission factor F of industrial solid waste phosphogypsum 磷石膏 =C 总 / M 固 .

[0020] The acquisition of forestry carbon sink factors is divided into the following steps: 1. Carbon content estimation: refer to DB11 / T 953-2013 "Technical Regulations for Measurement and Monitoring of Forestry Carbon Sinks" or relevant literature on forest carbon content in the corresponding region to determine the carbon content in tree biomass; 2. Carbon sink factor calculation: Combine the measured carbon content with the forest area to calculate the carbon storage per unit area (usually per hectare) of forest to form a forestry carbon sink factor.

[0021] Furthermore, the construction machinery efficiency index f is the energy consumed in pretreating unit mass of industrial solid waste phosphogypsum, f=energy consumed in pretreating 100% unit mass of industrial solid waste phosphogypsum×energy consumption adjustment coefficient e.

[0022] Furthermore, the energy consumption adjustment coefficient e is 1.1 to 1.3.

[0023] In a second aspect, the present invention provides a carbon emission reduction calculation system for industrial solid waste recycling, which comprises:

[0024] Mixing ratio determination unit: industrial solid waste phosphogypsum is used to replace part of natural aggregates for the preparation of fiber reinforced cement board, and the mixing ratio of industrial solid waste phosphogypsum is determined to be w1 through mix ratio test;

[0025] Mixing mass calculation unit: Calculate the mixing mass M of industrial solid waste phosphogypsum 磷石膏 =Mass of fiber reinforced cement board M 纤维增强水泥板 ×w1;

[0026] Carbon emission factor acquisition unit: obtain the carbon emission factor F of the replaced natural aggregate 天然集料 , calculate the carbon emission factor F of industrial solid waste phosphogypsum 磷石膏 ;

[0027] Carbon emission reduction calculation unit: Calculate the carbon emission reduction C generated by industrial solid waste phosphogypsum using the carbon emission factor method a =M 磷石膏 ×(F 天然集料 -F 磷石膏 ).

[0028] The economic benefit calculation method of 1t industrial solid waste phosphogypsum is as follows:

[0029] (1) Determine the ratio s of phosphogypsum replacing natural aggregate and the cost savings E of phosphogypsum replacing natural aggregate 集料 =Price of natural aggregate × proportion of alternative natural aggregate.

[0030] (2) Phosphogypsum replacing cement saves costs 水泥 = cement price × quality of alternative cement × (1-s).

[0031] (3) Solid waste phosphogypsum reduces energy consumption and saves costs 能源 =Cost of reducing energy consumption through industrial solid waste treatment × quality of phosphogypsum replacement.

[0032] The present invention has the following beneficial effects:

[0033] 1. A method for determining the carbon emission factor for industrial solid waste reuse is proposed, which solves the problem of missing carbon emission factor values ​​when industrial solid waste is recycled.

[0034] 2. By establishing a carbon emission factor calculation method based on the construction machinery ergonomics index, an empirical formula for energy consumption and economic benefits can be formed, which is conducive to reducing the amount of test inspections and labor intensity, and improving the speed of obtaining carbon emission factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 is a flow chart of the carbon emission reduction calculation steps of the present invention;

[0037] Figure 2 It is a flow chart for calculating carbon emissions in the process of recycling industrial solid waste phosphogypsum of the present invention;

[0038] Figure 3 This is a flow chart for calculating the carbon emission factor of industrial solid waste phosphogypsum in the present invention. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Embodiment 1

[0041] The carbon emission of industrial solid waste materials at each major stage is the main evaluation result of the project life cycle cost analysis. This embodiment provides a method for calculating the carbon emission reduction of industrial solid waste materials at each major stage, such as Figure 2 shown.

[0042] (1) Different transportation distances lead to transportation carbon emissions C 运输 The transportation distance from the phosphogypsum storage yard to the industrial solid waste recycling plant is assumed to be 40 km, and automobile transportation is adopted. The carbon emission factor F per unit mass transportation distance is 运输 =0.104kgCO2e / (t·km), transportation carbon emissions C 运输 =1t×40km×0.104kgCO2e / (t·km)=4.16kg.

[0043] (2) The energy consumed and carbon emissions generated vary with the processing technology of industrial solid waste. When industrial solid waste is processed by grinding, mixing, drying and other processes, assuming that the equipment used is powered by electricity, the grid emission factor is 0.581kgCO2 / kw·h. The amount of electricity consumed to process 1t100% industrial solid waste is about 1.2kw·h, and the energy consumption adjustment factor e=1.3. The carbon emissions generated during the processing of industrial solid waste are C 预处理 =1.2kw·h×1.3×0.581kgCO2 / kw·h=0.90kg.

[0044] (3) The stacking conditions of industrial solid waste affect the carbon emissions generated by stacking. Assuming that the stacking density of industrial solid waste is 1.4t / m 3 , the stacking height is 6m, then 1t of industrial solid waste needs to occupy 1t / (1.4t / m 3 ×6m)≈0.12m 2 , resulting in a reduction of 2.4kg (based on 50 years) in forestry carbon sinks, i.e. C 堆放 =2.4kg.

[0045] Embodiment 2

[0046] This embodiment provides a method for calculating the carbon emission reduction of fiber cement board prepared by industrial solid waste phosphogypsum. Figure 1 As shown, the following steps are included:

[0047] (1) Industrial solid waste phosphogypsum is used to replace part of the natural aggregate for the preparation of fiber reinforced cement board, and the mixing ratio of industrial solid waste phosphogypsum is determined to be 20% through mix ratio test;

[0048] (2) Calculate the mass of industrial solid waste phosphogypsum M required to produce 1 ton of fiber reinforced cement board 磷石膏 =0.2t;

[0049] (3) Refer to the "Building Carbon Emission Calculation Standard" (GB / T51366-2019) to obtain the carbon emission factor of alternative natural aggregates. 天然集料 = 863kgCO2e / t, the carbon emission factor F of industrial solid waste phosphogypsum was obtained through experimental detection 磷石膏 ;

[0050] (4) Calculate the carbon emission reduction C generated by industrial solid waste phosphogypsum using the carbon emission factor method a =0.2t×(0.88-F 磷石膏 )kgCO2e / t.

[0051] (5) Figure 2 As shown, the carbon emission factor F of industrial solid waste phosphogypsum 磷石膏 The calculation method is as follows:

[0052] ① The calculation boundary of carbon emissions from industrial solid waste reuse is determined as: from the end of phosphogypsum stacking to the end of fiber reinforced cement board processing, and only the carbon emission reduction benefits of replacing natural aggregates are considered;

[0053] ② Take 1 t of industrial solid waste phosphogypsum.

[0054] ③ Carbon emissions from industrial solid waste recycling C 总 =C 运输 +C 预处理 -C 堆放 ,in:

[0055] The transportation distance from the phosphogypsum storage yard to the industrial solid waste recycling processing plant is 30 km. If the transportation is by car, the carbon emissions generated by transportation are C 运输 =1t×30km×0.104kgCO2e / (t·km)=3.12kg;

[0056] When grinding, mixing, drying and other processes are carried out on phosphogypsum, all the mechanical equipment used is operated by electricity, and the grid emission factor is 0.581kgCO2 / kw·h. According to statistics, the electricity consumed to process 1t of 100% industrial solid waste raw materials of phosphogypsum is about 1kw·h. The energy consumption adjustment coefficient e due to the separation of light materials and dust removal is 1.1, so the carbon emissions generated during the processing of industrial solid waste are C 预处理 =1kw·h×1.1×0.581kgCO2 / kw·h=0.63kg.

[0057] If construction solid waste is directly piled up without resource utilization, assuming that the accumulation density of construction solid waste is 1.6t / m3 If the stacking height is 5m, the land area required is 0.125m 2 , resulting in a reduction of 2.53 kg (based on 50 years), that is, C 堆放 =2.53kg.

[0058] ④ Such as Figure 3 As shown, the carbon emission factor of industrial solid waste phosphogypsum is calculated as:

[0059] F 磷石膏 =C 总 / M 固 =(3.12+0.63-2.53) / 1t=1.22kgCO2e / t.

[0060] The carbon emission reduction achieved by producing 1 ton of fiber reinforced cement board with 20% phosphogypsum content is Ca=0.2×(863-1.22)=172.356kg.

[0061] Taking 20% ​​industrial solid waste phosphogypsum as an example, calculate the cost savings of 1 ton fiber reinforced cement board E s .

[0062] (1) Solid waste phosphogypsum replaces natural aggregate to save costs 集料 = 100 yuan / t × (1t × 20%) = 20 yuan, replacing part of the cement to save cost E 水泥 =430 yuan / t×0.2t×(1-20 / 100)=68.8 yuan.

[0063] (2) Reducing energy consumption for industrial solid waste treatment saves cost E 能源 = 10 yuan / t × 0.2t = 2 yuan. Assume that the cost savings from reducing energy consumption due to industrial solid waste treatment is about 10 yuan / t.

[0064] (3) Cost savings per ton of industrial solid waste fiber reinforced cement board E s =E 集料 +E 水泥 +E 能源 =20 yuan + 68.8 yuan + 2 yuan = 90.8 yuan.

[0065] Table 1 Estimated cost of raw materials for mixed solid waste solution

[0066]

[0067] Table 2 Estimated cost of raw materials for the no-solid-waste solution

[0068]

[0069] Embodiment 3

[0070] This embodiment provides a carbon emission reduction calculation system for industrial solid waste recycling, which includes:

[0071] Mixing ratio determination unit: industrial solid waste phosphogypsum is used to replace part of natural aggregates for the preparation of fiber reinforced cement board, and the mixing ratio of industrial solid waste phosphogypsum is determined to be w1 through mix ratio test;

[0072] Mixing mass calculation unit: Calculate the mixing mass M of industrial solid waste phosphogypsum 磷石膏 =Mass of fiber reinforced cement board M 纤维增强水泥板 ×w1;

[0073] Carbon emission factor acquisition unit: obtain the carbon emission factor F of the replaced natural aggregate 天然集料 , calculate the carbon emission factor F of industrial solid waste phosphogypsum 磷石膏 ;

[0074] Carbon emission reduction calculation unit: Calculate the carbon emission reduction C generated by industrial solid waste phosphogypsum using the carbon emission factor method a =M 磷石膏 ×(F 天然集料 -F 磷石膏 ).

[0075] In the blending ratio determination unit, the blending ratio w1 of the industrial solid waste phosphogypsum is the percentage of the blending mass of the industrial solid waste phosphogypsum to the mass of the fiber reinforced cement board, and w1 does not exceed 25%.

[0076] In the carbon emission factor acquisition unit, the carbon emission factor F of industrial solid waste phosphogypsum 磷石膏 The calculation method is as follows:

[0077] 1) Determine the calculation boundary of carbon emissions from industrial solid waste reuse: from the end of phosphogypsum stacking to the end of fiber reinforced cement board processing, and only consider the carbon emission reduction of replaced natural aggregates;

[0078] 2) Carbon emissions from industrial solid waste recycling C 总 =C 运输 +C 预处理 -C 堆放 ,in,

[0079] C 运输 The carbon emissions from transporting industrial solid waste from the industrial solid waste dump to the industrial solid waste recycling plant; C 运输 = Industrial solid waste phosphogypsum mass M 固 × Transportation distance L from industrial solid waste dump to industrial solid waste recycling plant × Carbon emission factor F per unit mass transportation distance 运输 ;

[0080] C 预处理 The carbon emissions from the pretreatment of industrial solid waste phosphogypsum; C预处理 = Industrial solid waste phosphogypsum mass M 固 × Construction machinery efficiency index f × Energy carbon emission factor F 能 ;

[0081] C 堆放 Carbon emissions from direct dumping of industrial solid waste without resource utilization; C 堆放 = Industrial solid waste phosphogypsum mass M 固 / Bulk density of industrial solid waste phosphogypsum ρ 堆 / Industrial solid waste phosphogypsum stacking height h×forestry carbon sink factor F 林 ;

[0082] 3) Carbon emission factor F of industrial solid waste phosphogypsum 磷石膏 =C 总 / M 固 .

[0083] The construction machinery efficiency index f is the energy consumed in pretreating a unit mass of industrial solid waste phosphogypsum, f=the energy consumed in pretreating 100% of a unit mass of industrial solid waste phosphogypsum×the energy consumption adjustment coefficient e.

[0084] The energy consumption adjustment coefficient e is 1.1 to 1.3.

[0085] The present invention solves the problems of lack of carbon emission accounting methods and poor calculation accuracy in the current resource utilization of industrial solid waste, makes the carbon emission factor value more reasonable, and the carbon emission accounting results more accurate, which is helpful for the statistical analysis of carbon emission reduction and economic benefit results of industrial solid waste reuse.

[0086] It is obvious that those skilled in the art can easily make various modifications to the above embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art to the present invention based on the disclosure of the present invention should be within the protection scope of the present invention.

Claims

1. A method for calculating carbon emission reduction from industrial solid waste recycling, characterized in that: Includes steps: 1) Industrial solid waste phosphogypsum is used to replace part of the natural aggregate for preparing fiber reinforced cement board, and the mixing ratio of industrial solid waste phosphogypsum is determined to be w1 through a mix ratio test; 2) Calculate the mixing mass M of industrial solid waste phosphogypsum 磷石膏 =Mass of fiber reinforced cement board M 纤维增强水泥板 ×w1; 3) Obtain the carbon emission factor F of the replaced natural aggregate 天然集料 , calculate the carbon emission factor F of industrial solid waste phosphogypsum 磷石膏 ; 4) Calculate the carbon emission reduction C generated by industrial solid waste phosphogypsum using the carbon emission factor method a =M 磷石膏 ×(F 天然集料 -F 磷石膏 ).

2. The method for calculating carbon emission reductions from industrial solid waste reuse according to claim 1, characterized in that: In the step 1), the blending ratio w1 of the industrial solid waste phosphogypsum is the percentage of the blending mass of the industrial solid waste phosphogypsum to the mass of the fiber reinforced cement board, and w1 does not exceed 25%.

3. The method for calculating carbon emission reductions from industrial solid waste reuse according to claim 1, characterized in that: In the step 3), the carbon emission factor F of industrial solid waste phosphogypsum 磷石膏 The calculation method is as follows: 31) Determine the calculation boundary of carbon emissions from industrial solid waste reuse: from the end of phosphogypsum stacking to the end of fiber reinforced cement board processing, and only consider the carbon emission reduction of replaced natural aggregates; 32) Carbon emissions from industrial solid waste recycling C 总 =C 运输 +C 预处理 -C 堆放 ,in, C 运输 The carbon emissions from transporting industrial solid waste from the industrial solid waste dump to the industrial solid waste recycling plant; C 运输 = Industrial solid waste phosphogypsum mass M 固 × Transportation distance L from industrial solid waste dump to industrial solid waste recycling plant × Carbon emission factor F per unit mass transportation distance 运输 ; C 预处理 The carbon emissions from the pretreatment of industrial solid waste phosphogypsum; C 预处理 = Industrial solid waste phosphogypsum mass M 固 × Construction machinery efficiency index f × Energy carbon emission factor F 能 ; C 堆放 Carbon emissions from direct dumping of industrial solid waste without resource utilization; C 堆放 = Industrial solid waste phosphogypsum mass M 固 / Bulk density of industrial solid waste phosphogypsum ρ 堆 / Industrial solid waste phosphogypsum stacking height h×forestry carbon sink factor F 林 ; 33) Carbon emission factor F of industrial solid waste phosphogypsum 磷石膏 =C 总 / M 固 .

4. The method for calculating carbon emission reductions from industrial solid waste reuse according to claim 3, characterized in that: The construction machinery efficiency index f is the energy consumed in pretreating unit mass of industrial solid waste phosphogypsum, f = energy consumed in pretreating 100% unit mass of industrial solid waste phosphogypsum × energy consumption adjustment coefficient e.

5. The method for calculating carbon emission reductions from industrial solid waste reuse according to claim 4, characterized in that: The energy consumption adjustment coefficient e is 1.1 to 1.

3.

6. A carbon emission reduction calculation system for industrial solid waste recycling, characterized in that: include: Mixing ratio determination unit: industrial solid waste phosphogypsum is used to replace part of natural aggregates for the preparation of fiber reinforced cement board, and the mixing ratio of industrial solid waste phosphogypsum is determined to be w1 through mix ratio test; Mixing mass calculation unit: Calculate the mixing mass M of industrial solid waste phosphogypsum 磷石膏 =Mass of fiber reinforced cement board M 纤维增强水泥板 ×w1; Carbon emission factor acquisition unit: obtain the carbon emission factor F of the replaced natural aggregate 天然集料 , calculate the carbon emission factor F of industrial solid waste phosphogypsum 磷石膏 ; Carbon emission reduction calculation unit: Calculate the carbon emission reduction C generated by industrial solid waste phosphogypsum using the carbon emission factor method a =M 磷石膏 ×(F 天然集料 -F 磷石膏 ).

7. The carbon emission reduction calculation system for industrial solid waste recycling according to claim 6 is characterized in that: In the blending ratio determination unit, the blending ratio w1 of the industrial solid waste phosphogypsum is the percentage of the blending mass of the industrial solid waste phosphogypsum to the mass of the fiber reinforced cement board, and w1 does not exceed 25%.

8. The carbon emission reduction calculation system for industrial solid waste recycling according to claim 1 is characterized in that: In the carbon emission factor acquisition unit, the carbon emission factor F of industrial solid waste phosphogypsum 磷石膏 The calculation method is as follows: 1) Determine the calculation boundary of carbon emissions from industrial solid waste reuse: from the end of phosphogypsum stacking to the end of fiber reinforced cement board processing, and only consider the carbon emission reduction of replaced natural aggregates; 2) Carbon emissions from industrial solid waste recycling C 总 =C 运输 +C 预处理 -C 堆放 ,in, C 运输 The carbon emissions from transporting industrial solid waste from the industrial solid waste dump to the industrial solid waste recycling plant; C 运输 = Industrial solid waste phosphogypsum mass M 固 × Transportation distance L from industrial solid waste dump to industrial solid waste recycling plant × Carbon emission factor F per unit mass transportation distance 运输 ; C 预处理 The carbon emissions from the pretreatment of industrial solid waste phosphogypsum; C 预处理 = Industrial solid waste phosphogypsum mass M 固 × Construction machinery efficiency index f × Energy carbon emission factor F 能 ; C 堆放 Carbon emissions from direct dumping of industrial solid waste without resource utilization; C 堆放 = Industrial solid waste phosphogypsum mass M 固 / Bulk density of industrial solid waste phosphogypsum ρ 堆 / Industrial solid waste phosphogypsum stacking height h×forestry carbon sink factor F 林 ; 3) Carbon emission factor F of industrial solid waste phosphogypsum 磷石膏 =C 总 / M 固 .

9. The carbon emission reduction calculation system for industrial solid waste recycling according to claim 8, characterized in that: The construction machinery efficiency index f is the energy consumed in pretreating unit mass of industrial solid waste phosphogypsum, f = energy consumed in pretreating 100% unit mass of industrial solid waste phosphogypsum × energy consumption adjustment coefficient e.

10. The carbon emission reduction calculation system for industrial solid waste recycling according to claim 9, characterized in that: The energy consumption adjustment coefficient e is 1.1 to 1.3.

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