Kitchen garbage greenhouse gas emission amount accounting method

Abstract

The invention discloses a kitchen garbage greenhouse gas emission amount accounting method, and relates to the technical field of greenhouse gas emission amount calculation, and the method comprises the steps: determining the greenhouse gas emission amount of each sub-process in a kitchen garbage treatment process; the sub-processes comprise a collection sub-process, a transportation sub-process, a processing sub-process and a disposal sub-process; and based on the greenhouse gas emission amount of all the sub-processes, determining the total greenhouse gas emission amount in the kitchen garbage treatment process. According to the invention, comprehensive accounting of the greenhouse gas emission of the kitchen garbage is realized.

Description

Technical Field

[0001] The present application relates to the technical field of greenhouse gas emission calculation, and in particular to a method for calculating greenhouse gas emissions from kitchen waste. Background Art

[0002] Greenhouse gas emissions are the process of releasing greenhouse gases into the environment during human production and business activities. These gases include carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride.

[0003] Greenhouse gas accounting methods are widely used in thermal power generation, industrial production, and other areas. However, due to regional differences and the diverse modes of domestic waste collection, transportation, and disposal, the current single accounting unit approach lacks systematicity in practical application and fails to focus on the greenhouse gas emissions contributions of different links, resulting in inaccurate optimization and assessment of greenhouse gas accounting for domestic waste treatment. Summary of the Invention

[0004] The purpose of this application is to provide a method for calculating greenhouse gas emissions from kitchen waste, which realizes the comprehensive calculation of greenhouse gas emissions from kitchen waste.

[0005] To achieve the above objectives, this application provides the following solutions:

[0006] This application provides a method for calculating greenhouse gas emissions from food waste, including:

[0007] Determining greenhouse gas emissions from each sub-process in the food waste treatment process; the sub-processes include: a collection sub-process, a transportation sub-process, a treatment sub-process, and a disposal sub-process;

[0008] Based on the greenhouse gas emissions of all sub-processes, the total greenhouse gas emissions of the food waste treatment process are determined.

[0009] Optionally, determine the greenhouse gas emissions of the collection sub-process in the food waste treatment process, including:

[0010] Determine the greenhouse gas emissions from purchased electricity, purchased hot water, and fossil fuel combustion for the collection sub-process;

[0011] The greenhouse gas emissions of the collection sub-process in the food waste treatment process are obtained by summing the greenhouse gas emissions generated by the purchased electricity, the purchased hot water, and the fossil fuel combustion.

[0012] Optionally, determine the greenhouse gas emissions from the transportation sub-process of food waste treatment, including:

[0013] Determine the greenhouse gas emissions from mobile sources under each transport mode in the transport sub-process;

[0014] The greenhouse gas emissions generated by mobile sources in all transportation modes of the transportation sub-process are summed to obtain the greenhouse gas emissions of the transportation sub-process in the food waste treatment process.

[0015] Optionally, determine the greenhouse gas emissions of the treatment sub-process in the food waste treatment process, including:

[0016] Determine the greenhouse gas emissions from purchased electricity, purchased hot water, fossil fuel combustion, process greenhouse gas emissions from the treatment sub-process, and carbon offsets;

[0017] The greenhouse gas emissions of the processing sub-process during the food waste treatment process are obtained by summing up the greenhouse gas emissions generated by the purchased electricity, the purchased hot water, the greenhouse gas emissions generated by the combustion of fossil fuels, the process greenhouse gas emissions generated when executing the processing sub-process, and the carbon compensation.

[0018] Optionally, determine the greenhouse gas emissions of the disposal sub-process in the food waste treatment process, including:

[0019] Determine the greenhouse gas emissions from wastewater treatment, waste residue treatment, purchased electricity, purchased hot water, and fossil fuel combustion in the disposal sub-process;

[0020] The greenhouse gas emissions of the disposal sub-process in the food waste treatment process are obtained by summing up the greenhouse gas emissions generated by wastewater treatment, waste residue treatment, purchased electricity, purchased hot water and fossil fuel combustion in the disposal sub-process.

[0021] Optionally, the process of determining the greenhouse gas emissions generated by the purchased electricity of any current sub-process comprises:

[0022] Obtain the average CO2 emission factor of the regional power grid, the consumption of purchased electricity, and the global warming potential of CO2 for the current sub-process;

[0023] The greenhouse gas emissions generated by the purchased electricity of the current sub-process are calculated based on the average carbon dioxide emission factor of the regional power grid supply, the consumption of the purchased electricity and the global warming potential of carbon dioxide of the current sub-process.

[0024] Optionally, the process of determining greenhouse gas emissions generated by purchased hot water of any current sub-process comprises:

[0025] Obtain the quality of the hot water purchased for the current sub-process, the hot water temperature, the average carbon dioxide emission factor of district heating, and the global warming potential of carbon dioxide;

[0026] The greenhouse gas emissions generated by the purchased hot water of the current sub-process are calculated based on the quality of the purchased hot water, the hot water temperature, the average carbon dioxide emission factor of district heating, and the global warming potential of carbon dioxide of the current sub-process.

[0027] Optionally, the process of determining the greenhouse gas emissions generated by the combustion of fossil fuels in any current sub-process comprises:

[0028] Obtaining greenhouse gas emissions from fossil fuel combustion from stationary sources and greenhouse gas emissions from fossil fuel combustion from mobile sources of the current sub-process;

[0029] The greenhouse gas emissions from fossil fuel combustion in the current sub-process are calculated based on the greenhouse gas emissions from stationary source fossil fuel combustion and the greenhouse gas emissions from mobile source fossil fuel combustion in the current sub-process.

[0030] Optionally, the process of determining the greenhouse gas emissions of the process generated when executing the processing sub-process comprises:

[0031] Obtain greenhouse gas emissions generated by wastewater treatment, waste residue treatment, and biochemical treatment in the treatment sub-process;

[0032] The greenhouse gas emissions generated during the treatment sub-process are calculated based on the greenhouse gas emissions generated during wastewater treatment, waste residue treatment and biochemical treatment in the treatment sub-process.

[0033] Optionally, the process of determining the carbon offset of any current sub-process includes:

[0034] Obtaining the output of each product of the current sub-process, the coefficient of the replaced product, and the carbon dioxide emission factor of the replaced product; the product is an energy product and / or a resource product;

[0035] The carbon compensation of the current sub-process is calculated based on the output of each product of the current sub-process, the coefficient of the replaced product and the carbon dioxide emission factor of the replaced product.

[0036] According to the specific embodiments provided in this application, this application discloses the following technical effects:

[0037] The present application discloses a method for calculating greenhouse gas emissions from kitchen waste. First, the greenhouse gas emissions of each sub-process in the kitchen waste treatment process are determined; the sub-processes include: collection sub-process, transportation sub-process, processing sub-process and disposal sub-process; then, based on the greenhouse gas emissions of all sub-processes, the total greenhouse gas emissions of the kitchen waste treatment process are determined, thereby realizing comprehensive accounting of greenhouse gas emissions from kitchen waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. 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 creative work.

[0039] Figure 1 A flowchart of a method for calculating greenhouse gas emissions from kitchen waste provided in one embodiment of the present application;

[0040] Figure 2 This is a schematic diagram of the treatment and disposal system structure;

[0041] Figure 3 A schematic diagram of the structure of a computer device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0043] The purpose of this application is to provide a method for calculating greenhouse gas emissions from kitchen waste, aiming to achieve comprehensive accounting of greenhouse gas emissions from kitchen waste.

[0044] In order to make the above-mentioned purposes, 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.

[0045] In an exemplary embodiment, Figure 1 As shown, the method for calculating greenhouse gas emissions from kitchen waste in this embodiment includes:

[0046] Step 1: Determine the greenhouse gas emissions of each sub-process in the food waste treatment process; the sub-processes include: collection sub-process, transportation sub-process, treatment sub-process and disposal sub-process.

[0047] Specifically, the processing in the collection sub-process includes: the loading and unloading process of food waste collection and transportation vehicles, the normal driving process of food waste trucks, the low-speed driving process of food waste trucks and the queuing process of food waste trucks. The processing sub-process is energy products or resource products such as biodiesel, black soldier fly treatment, biochemical treatment, and carbon sources. The processing in the disposal sub-process includes: incineration and landfill of waste residues generated in the treatment process, as well as wastewater treatment.

[0048] like Figure 2 As shown, the treatment and disposal systems involved in the method for calculating greenhouse gas emissions from kitchen waste in this application include: main treatment and disposal systems, auxiliary treatment and disposal systems, and subsidiary treatment and disposal systems. The main treatment and disposal systems include: process treatment systems (such as collection and treatment systems, transportation and treatment systems, loading and unloading treatment systems, pretreatment systems, anaerobic fermentation treatment systems, composting treatment systems, black soldier fly breeding treatment systems, biogas power generation systems, biocarbon source production systems, incineration disposal and landfill disposal, etc.); auxiliary treatment and disposal systems include: inspection, power supply, water supply, heating, cooling, machine repair, instrument repair, lighting, warehouses, and environmental protection, safety devices and facilities; subsidiary treatment and disposal systems include process command systems and service departments and units (such as canteens, dormitories, workshop bathrooms, heating, etc.).

[0049] Step 2: Determine the total greenhouse gas emissions of the food waste treatment process based on the greenhouse gas emissions of all sub-processes.

[0050] Specifically, the calculation formula for the total amount of greenhouse gas emissions from the food waste treatment process is:

[0051] E 总 =E 餐厨收集 +E 餐厨运输 +E 餐厨处理 +E 餐厨处置 .

[0052] Among them, E 总 is the total greenhouse gas emissions from the food waste treatment process; E 餐厨收集 To collect greenhouse gas emissions of sub-processes; E 餐厨运输 is the greenhouse gas emissions of the transportation sub-process; E 餐厨处理 is the greenhouse gas emissions of the treatment sub-process; E 餐厨处置 is the greenhouse gas emissions from the disposal sub-process.

[0053] As an optional implementation, in step 1, determining the greenhouse gas emissions of the collection sub-process in the food waste treatment process includes:

[0054] Determine the greenhouse gas emissions from purchased electricity, purchased hot water, and fossil fuel combustion for the collection sub-process.

[0055] The greenhouse gas emissions of the collection sub-process in the food waste treatment process are obtained by summing the greenhouse gas emissions generated by the purchased electricity, the purchased hot water, and the fossil fuel combustion.

[0056] Specifically, the calculation formula for greenhouse gas emissions from the collection sub-process is:

[0057] E 餐厨收集 =E 购入电，餐厨收集 +E 购入热，餐厨收集 +E 燃烧，餐厨收集 .

[0058] Among them, E 购入电，餐厨收集 E for the collection subprocess 购入电 , E 购入电 Greenhouse gas emissions generated by purchased electricity; E 购入热，餐厨收集 E for the collection subprocess 购入热 , E 购入热 Greenhouse gas emissions from purchased hot water; E 燃烧，餐厨收集 E for the collection subprocess 燃烧 , E 燃烧 Greenhouse gas emissions from the burning of fossil fuels.

[0059] As an optional implementation, in step 1, determining the greenhouse gas emissions of the transportation sub-process in the food waste treatment process includes:

[0060] Determine the greenhouse gas emissions generated by mobile sources under each transportation mode in the transportation sub-process.

[0061] The greenhouse gas emissions generated by mobile sources in all transportation modes of the transportation sub-process are summed to obtain the greenhouse gas emissions of the transportation sub-process in the food waste treatment process.

[0062] Specifically, the calculation formula for greenhouse gas emissions from the transportation sub-process is:

[0063]

[0064] Where N is the total number of transportation modes of the transportation sub-process; is E of the transport subprocess under the nth transport mode 移动 , E 移动 Greenhouse gas emissions from mobile sources.

[0065] As an optional implementation, in step 1, determining the greenhouse gas emissions of the processing sub-process in the food waste processing process includes:

[0066] Determine the greenhouse gas emissions from purchased electricity, purchased hot water, fossil fuel combustion, process greenhouse gas emissions, and carbon offsets for the treatment sub-process.

[0067] The greenhouse gas emissions of the processing sub-process during the food waste treatment process are obtained by summing up the greenhouse gas emissions generated by the purchased electricity, the purchased hot water, the greenhouse gas emissions generated by the combustion of fossil fuels, the process greenhouse gas emissions generated when executing the processing sub-process, and the carbon compensation.

[0068] Specifically, the calculation formula for greenhouse gas emissions from the treatment sub-process is:

[0069] E 餐厨处理 =E 购入电，餐厨处理 +E 购入热，餐厨处理 +E 燃烧，餐厨处理 +E 过程 -

[0070] E 碳补偿，餐厨处理 .

[0071] Among them, E 购入电，餐厨处理 E for processing subprocess 购入电 ;E 购入热，餐厨处理 E for processing subprocess 购入热 ;E 燃烧，餐厨处理 E for processing subprocess 燃烧 ;E 过程 E is the greenhouse gas emissions generated when executing the treatment sub-process; 碳补偿，餐厨处理 E for processing subprocess 碳补偿 , E 碳补偿 For carbon offsets.

[0072] As an optional implementation, in step 1, determining the greenhouse gas emissions of the disposal sub-process in the food waste treatment process includes:

[0073] Determine the greenhouse gas emissions generated by wastewater treatment, waste residue treatment, purchased electricity, purchased hot water, and fossil fuel combustion in the disposal sub-process.

[0074] The greenhouse gas emissions of the disposal sub-process in the food waste treatment process are obtained by summing up the greenhouse gas emissions generated by wastewater treatment, waste residue treatment, purchased electricity, purchased hot water and fossil fuel combustion in the disposal sub-process.

[0075] Specifically, the calculation formula for greenhouse gas emissions from the disposal sub-process is:

[0076] E 餐厨处置 =E 废水，餐厨处置 +E 废渣，餐厨处置 +E 购入电，餐厨处置 +

[0077] E 购入热，餐厨处置 +E 燃烧，餐厨处置 .

[0078] Among them, E 废水，餐厨处置 E for the disposal subprocess 废水 , E 废水 E is the greenhouse gas emissions generated during wastewater treatment; 废渣，餐厨处置 E for the disposal subprocess 废渣 , E 废渣 E is the greenhouse gas emissions generated during waste residue treatment; 购入电，餐厨处置 E for the disposal subprocess 购入电 ;E 购入热，餐厨处置 E for the disposal subprocess 购入热 ;E 燃烧，餐厨处置 E for the disposal subprocess 燃烧 .

[0079] As an optional embodiment, the process of determining the greenhouse gas emissions generated by the purchased electricity of any current sub-process includes:

[0080] Obtain the average carbon dioxide emission factor of the regional grid power supply, the consumption of purchased electricity, and the global warming potential of carbon dioxide for the current sub-process.

[0081] The greenhouse gas emissions generated by the purchased electricity of the current sub-process are calculated based on the average carbon dioxide emission factor of the regional power grid supply, the consumption of the purchased electricity and the global warming potential of carbon dioxide of the current sub-process.

[0082] Specifically, the calculation formula for greenhouse gas emissions generated by purchased electricity in any sub-process is:

[0083] E 购入电 =EF ele ×EC×GWP CO2 .

[0084] Among them, EF ele is the average CO2 emission factor for regional grid electricity supply, expressed in tons of CO2 per megawatt (tCO2 / MWh); EC is the consumption of purchased electricity; GWP CO2 is the global warming potential of carbon dioxide, expressed in tonnes of carbon dioxide equivalent per tonne of nitrous oxide (tCO2 e / tN2O), with a default value of 279.

[0085] As an optional embodiment, the process of determining the greenhouse gas emissions generated by the purchased hot water of any current sub-process includes:

[0086] Obtain the quality of the hot water purchased for the current sub-process, the hot water temperature, the average carbon dioxide emission factor for district heating, and the global warming potential of carbon dioxide.

[0087] The greenhouse gas emissions generated by the purchased hot water of the current sub-process are calculated based on the quality of the purchased hot water, the hot water temperature, the average carbon dioxide emission factor of district heating, and the global warming potential of carbon dioxide of the current sub-process.

[0088] Specifically, the calculation formula for greenhouse gas emissions generated by purchased hot water in any sub-process is:

[0089] E 购入热 =Maw×(T w -20)×4.1816×10 -3 ×EF the ×GWP CO2 .

[0090] Where Maw is the mass of hot water purchased, measured in tons (t); T w is the hot water temperature in degrees Celsius (°C); 20 is the temperature of water at room temperature in degrees Celsius (°C); 4.1868 is the specific heat of water at room temperature and pressure in kilojoules per kilogram per degree Celsius (kJ / (kg°C)); EF the is the average CO2 emission factor for district heating, expressed in tonnes of CO2 per gigajoule (tCO2 / GJ).

[0091] As an optional embodiment, the process of determining the greenhouse gas emissions generated by the combustion of fossil fuels in any current sub-process includes:

[0092] Get the greenhouse gas emissions from fossil fuel combustion from stationary sources and the greenhouse gas emissions from fossil fuel combustion from mobile sources of the current sub-process.

[0093] The greenhouse gas emissions from fossil fuel combustion in the current sub-process are calculated based on the greenhouse gas emissions from stationary source fossil fuel combustion and the greenhouse gas emissions from mobile source fossil fuel combustion in the current sub-process.

[0094] Specifically, the calculation formula for greenhouse gas emissions from fossil fuel combustion in any sub-process includes:

[0095] E 燃烧 =E 固定 +E 移动 .

[0096] E 固定=∑ i (AD i ×EF i ×GWP CO2 ).

[0097] AD i =FC i ×NCV i .

[0098]

[0099] E 移动 =E 正常行驶 +E 装卸载 +E 排队行驶 .

[0100] E 正常行驶 =∑ d AD d，正常行驶 ×(EF CO2 ×GWP CO2 +EF N2O ×

[0101] GWP N2O +EF CH4 ×GWP CH4 ).

[0102] AD d，正常行驶 =NCV d，正常行驶 ×FC d .

[0103] E 装卸载 =∑ d AD d，装卸载 ×(EF CO2 ×GWP CO2 +EF N2O ×GWP N2O +

[0104] EF CH4 ×GWP CH4 ).

[0105] AD d，装卸载 =T d ×P d ×η d ×NCV d，装卸载 .

[0106] E 排队行驶 =A d ×E 正常行驶 .

[0107] Among them, E 固定 E is the greenhouse gas emissions from fossil fuel combustion at stationary sources, measured in tons of carbon dioxide equivalent (tCO2e);移动 AD is the greenhouse gas emissions from fossil fuel combustion in mobile sources, measured in tons of carbon dioxide equivalent (tCO2e); i is the activity data of the i-th fossil fuel consumed during the accounting period, measured in gigajoules (GJ); EF i is the carbon dioxide emission factor of the i-th fossil fuel, expressed in tons of carbon dioxide per gigajoule (tCO2 / GJ); FC i The net consumption of the i-th fossil fuel during the accounting period is expressed in tons (t) for solid or liquid fuels and in ten thousand standard cubic meters (10 4 Nm 3 ) i The average lower calorific value of the i-th fossil fuel during the accounting period, expressed in GJ / t for solid or liquid fuels and GJ / 10 for gaseous fuels. 4 Nm 3 ) plan; CC i is the carbon content per unit calorific value of the i-th fossil fuel, measured in tons of carbon per gigajoules (tC / GJ); OF i is the carbon oxidation rate of the i-th fossil fuel, in percentage (%); is the ratio of the relative molecular mass of carbon dioxide to carbon; E 正常行驶 E is the greenhouse gas emissions generated by the combustion of fossil fuels during the normal driving process of the D-type collection and transportation vehicle when transporting food waste during the accounting period, measured in tons of carbon dioxide equivalent (tCO2e); 装卸载 E is the greenhouse gas emissions from the combustion of fossil fuels during the loading and unloading process of the D-type collection and transportation vehicle transporting food waste during the accounting period, measured in tons of carbon dioxide equivalent (tCO2e); 排队行驶 AD is the greenhouse gas emissions from fossil fuel combustion during the queuing process of the D-type collection and transportation vehicle transporting food waste during the accounting period, in tons of carbon dioxide equivalent (tCO2e); d，正常行驶 AD during normal driving d , AD d The activity data of fossil fuel collected and transported by model d during the accounting period, measured in gigajoules (GJ); EF CO2 EF is the carbon dioxide emission factor of fossil fuels used by model d collection and transportation vehicles during the accounting period, expressed in tons of carbon dioxide per gigajoule (tCO2 / GJ); N2O is the nitrous oxide emission factor for the fossil fuel of type d collection and transportation vehicle during the accounting period, expressed in tons of nitrous oxide per gigajoules (tN2O / km); GWP N2O is the global warming potential of nitrous oxide; EF CH4 is the methane emission factor of fossil fuel for type d collection and transportation vehicles during the accounting period, measured in tons of methane per gigajoules (tCH4 / km); GWP CH4is the global warming potential of methane, expressed in tons of carbon dioxide equivalent per ton of methane (tCO2 e / tCH4), with a default value of 27.9; NCV d，正常行驶 NCV during normal driving d , NCV d The average lower heating value of the D-type collection and transportation vehicle during the accounting period, expressed in gigajoules per ton (GJ / t) for solid or liquid fuels; FC d The net consumption of fossil fuels by the D-type collection and transportation vehicle during the accounting period is measured in tons (t) for solid or liquid fuels and in 10,000 standard cubic meters (10 4 Nm 3 ) meter; AD d，装卸载 AD for the installation and uninstallation process d ;T d P is the loading / unloading time of type D collection and transportation vehicle during the accounting period, measured in hours (h); d The power of the engine of the type d collection and transportation vehicle during the accounting period, measured in kilowatts (KW); η d NCV is the fuel consumption rate of the engine of the D-type collection and transportation vehicle during the accounting period, in grams per kilowatt-hour (g / kWh); d，装卸载 NCV for loading and unloading process d ; A d It is the multiple of energy consumption during the queue driving process of type D collection and transportation vehicle compared with the normal driving process during the calculation period.

[0108] As an optional embodiment, the process of determining the greenhouse gas emissions generated when executing the processing sub-process includes:

[0109] Obtain greenhouse gas emissions generated during wastewater treatment, greenhouse gas emissions generated during waste residue treatment, and greenhouse gas emissions generated during biochemical treatment of the treatment sub-process.

[0110] The greenhouse gas emissions generated during the treatment sub-process are calculated based on the greenhouse gas emissions generated during wastewater treatment, waste residue treatment and biochemical treatment in the treatment sub-process.

[0111] Specifically, the calculation formula for the greenhouse gas emissions generated during the processing of the sub-process is:

[0112] E 过程 =E 废水，过程 +E 废渣，过程 +E 生化，过程 .

[0113] Among them, E 废水，过程 E for processing subprocess 废水 ;E 废渣，过程 E for processing subprocess 废渣 ;E生化，过程 Greenhouse gas emissions from the composting, anaerobic fermentation, and black soldier fly farming sub-processes are measured in tons of carbon dioxide equivalent (tCO2 e).

[0114] E 废水 =Q 废水 ×(C COD ×EF COD ×GWP CH4 +C TN ×EF TN ×GWP N2O ).

[0115] E 废渣 =∑ f (EF f ×M 废渣 )×GWP j .

[0116] Among them, Q 废水 The amount of wastewater treated in the sewage treatment facilities during the accounting period, in cubic meters (m 3 ) COD The concentration of organic pollutants removed is expressed in kilograms per cubic meter (kg / m 3 ) calculation; EF COD is the organic pollutant emission factor, (kgCH4 / kgCOD); C TN is the total nitrogen concentration removed, in kilograms per cubic meter (kg / m 3 ) meter; EF TN EF is the conversion rate of total nitrogen to nitrous oxide (kgN2O / kgTN); f M is the carbon dioxide emission factor of the fth treatment mode in the waste residue treatment process, measured in tons of carbon dioxide equivalent per ton of waste residue (tCO2e / twaste residue), and the treatment modes include: waste residue incineration, waste residue landfill and waste residue biochemical treatment; 废渣 is the waste residue treatment volume, in tons (t); GWP j The global warming potential of greenhouse gases produced by biochemical processes is calculated as tonnes of carbon dioxide equivalent per tonne of methane (tCO2 e / tCH4), with a default value of 27.9; calculated as tonnes of carbon dioxide equivalent per tonne of carbon dioxide (tCO2 e / tCO2), with a default value of 1; and calculated as tonnes of carbon dioxide equivalent per tonne of nitrous oxide (tCO2 e / tN2O), with a default value of 273.

[0117] As an optional implementation, the process of determining the carbon offset of any current sub-process includes:

[0118] Obtain the output of each product of the current sub-process, the coefficient of the replaced product and the carbon dioxide emission factor of the replaced product; the product is an energy product and / or a resource product.

[0119] The carbon compensation of the current sub-process is calculated based on the output of each product of the current sub-process, the coefficient of the replaced product and the carbon dioxide emission factor of the replaced product.

[0120] Specifically, the calculation formula for carbon compensation of any sub-process is:

[0121]

[0122] Where R is the total number of products; OP r is the output of product r, in tons (t) or cubic meters (m 3 ) meter; Φ r is the coefficient of the product replaced by product r; EF r is the carbon dioxide emission factor of the product replaced by product r.

[0123] In an exemplary embodiment, a computer device is provided, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement a method for calculating greenhouse gas emissions from food waste.

[0124] In an exemplary embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, a method for calculating greenhouse gas emissions from food waste is implemented.

[0125] In an exemplary embodiment, a computer program product is provided, including a computer program, which implements a method for calculating greenhouse gas emissions from food waste when executed by a processor.

[0126] In an exemplary embodiment, a computer device is provided. The computer device may be a server or a terminal. The internal structure diagram thereof may be as follows: Figure 3 As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, abbreviated as I / O) and a communication interface. The processor, memory and input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a method for calculating greenhouse gas emissions from food waste is implemented.

[0127] Those skilled in the art will understand that Figure 3 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0128] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0129] Those skilled in the art will understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, database or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory may include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM may be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0130] The databases involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, distributed databases based on blockchains. The processors involved in the various embodiments provided herein may include, but are not limited to, general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic units, data processing logic units based on quantum computing, and the like.

[0131] The technical features of the above embodiments can 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.

[0132] This document uses specific examples to illustrate the principles and implementation methods of this application. The description of the above examples is only intended to help understand the method and core concept of this application. At the same time, for those skilled in the art, based on the concept of this application, there may 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 emissions from kitchen waste, characterized in that: The method for calculating greenhouse gas emissions from kitchen waste includes: Determining greenhouse gas emissions from each sub-process in the food waste treatment process; the sub-processes include: a collection sub-process, a transportation sub-process, a treatment sub-process, and a disposal sub-process; Based on the greenhouse gas emissions of all sub-processes, the total greenhouse gas emissions of the food waste treatment process are determined.

2. The method for calculating greenhouse gas emissions from kitchen waste according to claim 1, characterized in that: Determine the greenhouse gas emissions from the collection sub-process of food waste treatment, including: Determine the greenhouse gas emissions from purchased electricity, purchased hot water, and fossil fuel combustion for the collection sub-process; The greenhouse gas emissions of the collection sub-process in the food waste treatment process are obtained by summing the greenhouse gas emissions generated by the purchased electricity, the purchased hot water, and the fossil fuel combustion.

3. The method for calculating greenhouse gas emissions from kitchen waste according to claim 2, characterized in that: Determine the greenhouse gas emissions from the transportation sub-process of food waste treatment, including: Determine the greenhouse gas emissions from mobile sources under each mode of transport in the transport sub-process; The greenhouse gas emissions generated by mobile sources in all transportation modes of the transportation sub-process are summed to obtain the greenhouse gas emissions of the transportation sub-process in the food waste treatment process.

4. The method for calculating greenhouse gas emissions from kitchen waste according to claim 3, characterized in that: Determine the greenhouse gas emissions of the food waste treatment sub-processes, including: Determine the greenhouse gas emissions from purchased electricity, purchased hot water, fossil fuel combustion, process greenhouse gas emissions from the treatment sub-process, and carbon offsets; The greenhouse gas emissions of the processing sub-process during the food waste treatment process are obtained by summing up the greenhouse gas emissions generated by the purchased electricity, the purchased hot water, the greenhouse gas emissions generated by the combustion of fossil fuels, the process greenhouse gas emissions generated when executing the processing sub-process, and the carbon compensation.

5. The method for calculating greenhouse gas emissions from kitchen waste according to claim 4, characterized in that: Determine the greenhouse gas emissions from the disposal sub-process of food waste treatment, including: Determine the greenhouse gas emissions from wastewater treatment, waste residue treatment, purchased electricity, purchased hot water, and fossil fuel combustion in the disposal sub-process; The greenhouse gas emissions of the disposal sub-process in the food waste treatment process are obtained by summing up the greenhouse gas emissions generated by wastewater treatment, waste residue treatment, purchased electricity, purchased hot water and fossil fuel combustion in the disposal sub-process.

6. The method for calculating greenhouse gas emissions from kitchen waste according to claim 5, characterized in that: The process for determining the greenhouse gas emissions from purchased electricity for any current sub-process includes: Obtain the average CO2 emission factor of the regional power grid, the consumption of purchased electricity, and the global warming potential of CO2 for the current sub-process; The greenhouse gas emissions generated by the purchased electricity of the current sub-process are calculated based on the average carbon dioxide emission factor of the regional power grid supply, the consumption of the purchased electricity and the global warming potential of carbon dioxide of the current sub-process.

7. The method for calculating greenhouse gas emissions from kitchen waste according to claim 5, characterized in that: The process for determining greenhouse gas emissions from purchased hot water for any current sub-process includes: Obtain the quality of the hot water purchased for the current sub-process, the hot water temperature, the average carbon dioxide emission factor of district heating, and the global warming potential of carbon dioxide; The greenhouse gas emissions generated by the purchased hot water of the current sub-process are calculated based on the quality of the purchased hot water, the hot water temperature, the average carbon dioxide emission factor of district heating, and the global warming potential of carbon dioxide of the current sub-process.

8. The method for calculating greenhouse gas emissions from kitchen waste according to claim 5, characterized in that: The process for determining greenhouse gas emissions from fossil fuel combustion for any current sub-process includes: Obtaining greenhouse gas emissions from fossil fuel combustion from stationary sources and greenhouse gas emissions from fossil fuel combustion from mobile sources of the current sub-process; The greenhouse gas emissions from fossil fuel combustion in the current sub-process are calculated based on the greenhouse gas emissions from stationary source fossil fuel combustion and the greenhouse gas emissions from mobile source fossil fuel combustion in the current sub-process.

9. The method for calculating greenhouse gas emissions from kitchen waste according to claim 5, characterized in that: The process of determining the greenhouse gas emissions generated when performing the treatment sub-process includes: Obtain greenhouse gas emissions generated by wastewater treatment, waste residue treatment, and biochemical treatment in the treatment sub-process; The greenhouse gas emissions generated during the treatment sub-process are calculated based on the greenhouse gas emissions generated during wastewater treatment, waste residue treatment and biochemical treatment in the treatment sub-process.

10. The method for calculating greenhouse gas emissions from kitchen waste according to claim 5, characterized in that: The process for determining carbon offsets for any current sub-process, including: Obtaining the output of each product of the current sub-process, the coefficient of the replaced product, and the carbon dioxide emission factor of the replaced product; the product is an energy product and / or a resource product; The carbon compensation of the current sub-process is calculated based on the output of each product of the current sub-process, the coefficient of the replaced product and the carbon dioxide emission factor of the replaced product.

Images