Carbon source analysis method, device, equipment and medium based on septic tank and pipe network

Abstract

The invention relates to the technical field of sewage treatment, in particular to a carbon source analysis method, device and equipment based on a septic tank and a pipe network and a medium. According to the method, the total carbon loss of the septic tank which is not transferred to a sewage plant in the regional urban water treatment system is calculated, then the first carbon loss of the septic tank consumed for forming greenhouse gas in the total carbon loss of the septic tank is calculated, and the second carbon loss of the septic tank is calculated according to the total carbon loss of the septic tank and the first carbon loss of the septic tank. And calculating the second carbon loss of the pipe network omitted in the pipe network in the same way. According to the analysis, the second carbon loss of the septic tank and the second carbon loss of the pipe network which are left in the septic tank and the pipe network in the sewage transfer process are calculated, and the two carbon losses can be converted into carbon sources in an excavation and recovery mode so as to be used for improving the carbon sources of a sewage plant.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a carbon source analysis method, device, equipment and medium based on a septic tank and a pipe network. Background Art

[0002] Municipal sewage enters the septic tank for biochemical degradation, and the supernatant (i.e. the liquid located in the upper layer of the septic tank) is then transported to the sewage treatment plant through the pipeline network for further treatment. Due to the low concentration of the current influent water quality of the sewage treatment plant, a carbon source is usually added during the degradation process to ensure the biochemical treatment effect of nitrogen removal and phosphorus removal. However, the feces in the septic tank itself contains a carbon source. This part of the carbon source is not fully transported to the sewage treatment plant through the pipeline network, but is left in the septic tank and the pipeline network, resulting in insufficient carbon source entering the sewage treatment plant for biochemical treatment, which in turn requires the sewage treatment plant to add additional carbon source for biochemical treatment. The existing technology does not account for the carbon source left in the septic tank and the pipeline network, resulting in the inability to recycle this part of the carbon source for biochemical treatment in the sewage treatment plant.

[0003] In summary, the existing technology fails to account for the carbon sources left in the septic tank and pipe network, resulting in insufficient carbon source recovery.

[0004] Therefore, the existing technology still needs to be improved and enhanced. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a carbon source analysis method, device, equipment and medium based on septic tanks and pipelines, which solves the problem of insufficient carbon source recovery caused by the prior art due to the failure to account for the carbon sources left out in the septic tanks and pipelines.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] In a first aspect, the present invention provides a carbon source analysis method based on a septic tank and a pipe network, which comprises:

[0008] Determining the total septic tank carbon loss, wherein the total septic tank carbon loss is used to represent the carbon in the septic tank that is not transferred to the wastewater treatment plant;

[0009] Determining the amount of a first gas emitted from the septic tank, determining the amount of carbon source consumed by the septic tank to generate the first gas, recording the amount as a first carbon loss of the septic tank, and determining a second carbon loss of the septic tank ultimately left in the feces residue based on the total carbon loss of the septic tank and the first carbon loss of the septic tank;

[0010] Determine the total carbon loss of the pipeline network, wherein the total carbon loss of the pipeline network is used to represent the carbon that is not transferred to the sewage treatment plant;

[0011] Determine the amount of the second gas discharged from the pipeline network, and determine the amount of carbon source consumed by the pipeline network to form the second gas amount, which is recorded as the first carbon loss of the pipeline network; and based on the total carbon loss of the pipeline network and the first carbon loss of the pipeline network, determine the second carbon loss of the pipeline network that is ultimately omitted in the pipeline network sediment. The second carbon loss of the septic tank and the second carbon loss of the pipeline network are used to convert into available carbon sources for the sewage treatment plant.

[0012] In one implementation, determining the total carbon loss of a septic tank includes:

[0013] Obtaining the water inflow and first organic matter concentration of the septic tank and the degradation rate of the organic matter by the septic tank;

[0014] The total carbon loss of the septic tank is determined based on the water inflow, the first organic matter concentration, and the degradation rate.

[0015] In one implementation, determining the second carbon loss of the septic tank that is ultimately omitted in the feces residue based on the total carbon loss of the septic tank and the first carbon loss of the septic tank includes:

[0016] The total carbon loss of the septic tank is subtracted from the first carbon loss of the septic tank to obtain the second carbon loss of the septic tank that is ultimately omitted in the septic tank.

[0017] In one implementation, determining the total carbon loss upstream of the sewage treatment plant includes:

[0018] Obtaining the drainage organic matter concentration and the influent organic matter concentration of the sewage treatment plant, wherein the drainage organic matter concentration is the organic matter concentration in the water discharged from the plot of land where the sewage treatment plant needs to perform sewage treatment;

[0019] Obtaining the drainage volume of the land plot and the sewage inflow volume of the sewage treatment plant;

[0020] The total upstream carbon loss of the sewage treatment plant is determined based on the influent organic matter concentration, the effluent organic matter concentration, the sewage influent volume, and the discharge volume.

[0021] In one implementation, determining the total carbon loss of the pipe network based on the total carbon loss upstream of the sewage treatment plant and the total carbon loss of the septic tank includes:

[0022] The total carbon loss of the pipeline network is obtained by subtracting the total carbon loss of the septic tank from the total carbon loss upstream of the sewage treatment plant.

[0023] In one implementation, determining the amount of the second gas discharged from the pipeline network includes:

[0024] Acquiring attribute data of the pipe network, hydraulic data within the pipe network, and microbial data within the pipe network, and determining the amount of methane gas emitted from the pipe network based on the attribute data, the hydraulic data, and the microbial data;

[0025] The amount of nitrogenous substances and the amount of carbonous substances in the sewage in the pipe network are obtained, and the amount of carbon dioxide and nitrous oxide discharged from the pipe network is determined based on the amount of nitrogenous substances and the amount of carbonous substances, and the amount of carbon dioxide, the amount of nitrous oxide and the amount of methane gas are used as the second gas amount.

[0026] In one implementation, determining the amount of carbon source consumed by the pipeline network to generate the second gas amount, recorded as a first carbon loss of the pipeline network, includes:

[0027] Obtaining a first conversion coefficient for converting carbon into methane, obtaining a second conversion coefficient for converting carbon into carbon dioxide, and obtaining a third conversion coefficient for carbon consumed to produce nitrous oxide through denitrification;

[0028] The first carbon loss of the pipeline network is obtained according to the amount of methane gas and the first conversion coefficient, the amount of carbon dioxide and the second conversion coefficient, and the amount of nitrous oxide and the third conversion coefficient.

[0029] In one implementation, calculating the second carbon loss of the pipeline network that is ultimately omitted from the pipeline network based on the total carbon loss of the pipeline network and the first carbon loss of the pipeline network includes:

[0030] The second carbon loss of the pipeline network is obtained by subtracting the first carbon loss of the pipeline network from the total carbon loss of the pipeline network.

[0031] In one implementation, determining the second carbon loss of the pipeline in the pipeline network included in the second carbon loss of the pipeline network includes:

[0032] determining a second organic matter concentration at a pipeline inlet and a second organic matter concentration at a pipeline outlet included in the second organic matter concentration;

[0033] Based on the second organic matter concentration at the pipeline inlet and the second organic matter concentration at the pipeline outlet and the water volume in the pipeline, the amount of carbon source omitted in the pipeline is calculated. The amount of carbon source is the second carbon loss of the pipeline included in the second carbon loss of the pipeline network. The pipeline is a pipeline in the pipeline network.

[0034] In a second aspect, an embodiment of the present invention further provides a carbon source analysis device based on a septic tank and a pipe network, wherein the device includes the following components:

[0035] A septic tank total carbon loss calculation module, used to determine the total carbon loss of the septic tank, wherein the total carbon loss of the septic tank is used to represent the carbon in the septic tank that is not transferred to the sewage treatment plant;

[0036] a septic tank second carbon loss calculation module, configured to determine the amount of the first gas emitted from the septic tank, determine the amount of carbon source consumed by the septic tank to generate the first gas, record the amount as the septic tank first carbon loss, and determine the septic tank second carbon loss ultimately omitted in the fecal residue based on the total carbon loss of the septic tank and the first carbon loss of the septic tank;

[0037] A total carbon loss calculation module for the pipeline network, used to determine the total carbon loss of the pipeline network, wherein the total carbon loss of the pipeline network is used to represent the carbon that is not transferred to the sewage treatment plant;

[0038] The second carbon loss calculation module of the pipeline network is used to determine the amount of the second gas discharged from the pipeline network, and determine the amount of carbon source consumed by the pipeline network to form the second gas amount, which is recorded as the first carbon loss of the pipeline network; and based on the total carbon loss of the pipeline network and the first carbon loss of the pipeline network, determine the second carbon loss of the pipeline network that is ultimately omitted in the pipeline network sediment. The second carbon loss of the septic tank and the second carbon loss of the pipeline network are used to convert into available carbon sources for the sewage treatment plant.

[0039] In a third aspect, an embodiment of the present invention further provides a terminal device, wherein the terminal device includes a memory, a processor, and a carbon source analysis program based on a septic tank and a pipe network stored in the memory and runnable on the processor; when the processor executes the carbon source analysis program based on a septic tank and a pipe network, the steps of the above-mentioned carbon source analysis method based on a septic tank and a pipe network are implemented.

[0040] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a carbon source analysis program based on a septic tank and a pipe network is stored. When the carbon source analysis program based on a septic tank and a pipe network is executed by a processor, the steps of the above-mentioned carbon source analysis method based on a septic tank and a pipe network are implemented.

[0041] Beneficial effects: The present invention calculates the total carbon loss of the septic tank that has not been transferred to the sewage treatment plant, and then calculates the first carbon loss of the septic tank consumed for gas formation in the total carbon loss of the septic tank, and calculates the second carbon loss of the septic tank that is omitted in the septic tank and can be used in the sewage treatment plant based on the total carbon loss of the septic tank and the first carbon loss of the septic tank. The second carbon loss of the pipeline network that is omitted in the pipeline network and can be used in the sewage treatment plant is calculated in the same way. From the above analysis, it can be seen that the present invention calculates the carbon source omitted in the septic tank and the pipeline network during the transfer process, so that this part of the carbon source can be fully recovered later for biochemical treatment in the sewage treatment plant. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is the overall flow chart of the present invention;

[0043] Figure 2 A structural diagram of a carbon source analysis device based on a septic tank and a pipe network provided by the present invention;

[0044] Figure 3 This is a block diagram of the internal structure of a terminal device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0045] The following is a clear and complete description of the technical solutions of the present invention in conjunction with the embodiments and the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0046] Research has found that urban sewage enters the septic tank for biochemical degradation, and the supernatant is then transported to the sewage treatment plant through the pipeline network for further treatment. Due to the low concentration of the current influent water quality of the sewage treatment plant, a carbon source is usually added during the degradation process to ensure the biochemical treatment effect of nitrogen and phosphorus removal. However, the feces in the septic tank itself contains a carbon source. This part of the carbon source is not fully transported to the sewage treatment plant through the pipeline network, but is left in the septic tank and the pipeline network, resulting in insufficient carbon source entering the sewage treatment plant for biochemical treatment, which in turn requires the sewage treatment plant to add additional carbon source for biochemical treatment. The existing technology does not account for the carbon source left in the septic tank and the pipeline network, resulting in the inability to recover this part of the carbon source for biochemical treatment in the sewage treatment plant.

[0047] In order to solve the above technical problems, the present invention provides a carbon source analysis method, device, equipment and medium based on septic tanks and pipelines, which solves the problem of insufficient carbon source recovery caused by the prior art due to the failure to account for the carbon sources left out in the septic tanks and pipelines.

[0048] The carbon source analysis method based on septic tank and pipe network of this embodiment can be applied to terminal equipment, which can be a terminal product with data processing function, such as a computer. Figure 1 As shown in , the carbon source analysis method based on septic tank and pipe network specifically includes the following steps:

[0049] S100, determining the total carbon loss of the septic tank, wherein the total carbon loss of the septic tank is used to represent the carbon in the septic tank that is not transferred to the sewage treatment plant;

[0050] S200, determining the amount of a first gas discharged from the septic tank, determining the amount of carbon source consumed by the septic tank to generate the first gas, recording the amount as a first carbon loss of the septic tank, and determining a second carbon loss of the septic tank ultimately omitted in the fecal residue based on the total carbon loss of the septic tank and the first carbon loss of the septic tank;

[0051] S300, determining the total carbon loss of the pipeline network, where the total carbon loss of the pipeline network is used to represent the carbon that is not transferred to the sewage treatment plant through the pipeline network;

[0052] S400, determine the amount of the second gas discharged from the pipeline network, and determine the amount of carbon source consumed by the pipeline network to form the second gas amount, which is recorded as the first carbon loss of the pipeline network; and based on the total carbon loss of the pipeline network and the first carbon loss of the pipeline network, determine the second carbon loss of the pipeline network that is ultimately omitted in the pipeline network sediment, and the second carbon loss of the septic tank and the second carbon loss of the pipeline network are used to convert into available carbon sources for the sewage treatment plant.

[0053] The application scenarios of steps S100, S200, S300, and S400 are as follows:

[0054] Detect the total amount of carbon emitted from the wastewater source, which includes domestic sewage, public buildings and industrial wastewater. In the process of the wastewater source sending wastewater into the sewage treatment plant through the septic tank and the pipeline network in turn, monitor the carbon in the wastewater due to the second carbon loss in the septic tank caused by the omission of carbon in the feces, and the second carbon loss in the pipeline network caused by the omission of carbon in the pipeline network sediment. Due to the presence of a large number of microorganisms in the septic tank and the sediment, the carbon at the source of the wastewater will be promoted to be converted into gas, thereby causing carbon to escape. At the same time, the carbon source in the septic tank and the sediment can be recovered as a high-quality carbon source. Therefore, according to the data of the second carbon loss in the septic tank and the second carbon loss in the pipeline network obtained through monitoring, the operation and maintenance methods of the septic tank and the pipeline network, such as the cleaning cycle, can be adjusted, so as to effectively block the migration of carbon in the source wastewater to gas, so that more carbon sources in the source wastewater can enter the sewage treatment plant, and at the same time, the carbon in the feces and sediment can be recovered to increase the carbon source of the sewage treatment plant.

[0055] Example 1. The septic tank in step S100 of this embodiment includes a septic tank for each plot of land, wherein the division of the plots includes: dividing the accounting area (the accounting area is the area served by the sewage treatment plant) into residential land, public building land and industrial land, wherein the residential land is further divided into residential areas that have undergone sewage and rainwater separation and residential areas that have not undergone sewage and rainwater separation, and the public building land is divided into public building land that has undergone sewage and rainwater separation and public building land that has not undergone sewage and rainwater separation.

[0056] In this embodiment, the water quality characteristic values of each plot include temperature, pH (pH is acidity and alkalinity), COD (COD is used to characterize the degree of organic pollution in water, i.e., Chemical Oxygen Demand), TOC (TOC is Total Organic Carbon), DO (DO is Dissolved Oxygen), sulfate, ammonia nitrogen, nitrite, nitrate and VFA (VFA is Volatile Fatty Acids, i.e., short-chain fatty acids).

[0057] In this embodiment, the parameters of the pipes in the pipe network include pipe diameter, slope, pipe length, and roughness. The hydraulic parameters include fullness, flow rate, and hydraulic retention time.

[0058] Example 2 is based on Example 1. In this example, step S100 of determining the total carbon loss of the septic tank includes: obtaining the water inflow and the first organic matter concentration of the septic tank and the degradation rate of the organic matter by the septic tank; and determining the total carbon loss of the septic tank based on the water inflow, the first organic matter concentration and the degradation rate.

[0059]

[0060] Where C Ls Represents the total carbon loss of the septic tank, C Ls The unit is kg / d (kg / d is kilograms / day), L represents loss, s represents septic tank, Ef i represents the average degradation rate of organic matter by the septic tank of the i-th plot (multiple septic tanks are built in one plot), K represents the total number of plots, Q 进，i represents the septic tank water inflow of the i-th plot, Q 进，i The unit is m 3 / d(m 3 / d (cubic meters / day), COD 进，i represents the first organic matter concentration in the septic tank of the i-th plot (the organic matter concentration represents the organic matter concentration contained in the influent of the septic tank), COD 进，i The unit is mg / L (mg / L is milligrams per liter).

[0061] In this embodiment, the amount of the first gas discharged from the septic tank in step S200 is the amount of methane (CH4) discharged, and its calculation formula is as follows:

[0062]

[0063] CH 4-s,i represents the methane emissions from the septic tank of the i-th plot, CH 4-s,i CH4 in the formula represents methane, CH 4-s,i The s in it stands for septic tank, CH 4-s,i The unit is kg / d (kg / d is kilograms / day), C Ls,i represents the carbon loss of the septic tank in the i-th plot in the entire accounting area, C Ls,i The unit is kg / d, Represents the amount of methane produced per unit of carbon loss. When the temperature of the septic tank is 25℃, The value is 0.077, when the temperature of the septic tank is 28℃, The value is 0.103.

[0064] In this embodiment, the calculation formula of the first carbon loss of the septic tank in step S200 is as follows:

[0065]

[0066] It represents the carbon source consumed by the septic tank of the i-th plot to produce methane. This carbon source is the first carbon loss of the septic tank. n1 represents the conversion coefficient (this conversion coefficient is the first conversion coefficient). The value of n1 can be 0.25.

[0067] In this embodiment, the calculation of the second carbon loss of the septic tank in step 200 includes: subtracting the first carbon loss of the septic tank from the total carbon loss of the septic tank to obtain the second carbon loss of the septic tank that is ultimately omitted in the septic tank.

[0068]

[0069] Where, COD ss-s Represents the second carbon loss of septic tanks corresponding to all septic tanks in the entire accounting area, COD ss-s The unit is kg / d.

[0070] In this embodiment, the total amount of carbon source COD that is ultimately omitted in the septic tank is also calculated. ss-s,i , then based on COD ss-s,i Perform the following calculations:

[0071] COD ssL-s,i =COD ss-s,i ×t×0.8;

[0072] Where, COD ssL-s,i represents the carbon source accumulated in the feces of the septic tank in the i-th plot within the cleaning interval t, COD ssL-s,i The unit of is kg / d, and the unit of t is day.

[0073] In this embodiment, calculating the second gas amount in step S400 includes: obtaining attribute data of the pipe network, hydraulic data within the pipe network, and microbial data within the pipe network, and determining the amount of methane gas discharged from the pipe network based on the attribute data, the hydraulic data, and the microbial data; obtaining the amount of nitrogenous substances and the amount of carbonous substances in the sewage in the pipe network, and based on the amount of nitrogenous substances and the amount of carbonous substances, the amount of carbon dioxide and the amount of nitrous oxide discharged from the pipe network, and using the amount of carbon dioxide, the amount of nitrous oxide, and the amount of methane gas as the second gas amount.

[0074] Methane gas volume The calculation formula is as follows:

[0075]

[0076] Where X = -0.0485F 2 +0.161F-0.0142;

[0077]

[0078] Where, The unit is mg / L, which means milligrams per liter. represents the methane (CH4) yield coefficient, It is used to characterize the amount of methane produced per kilogram of biomass (the unit of methane is milligrams). X represents the number of microorganisms, and the unit of X is kilograms. θ represents the temperature correction coefficient, and the value of θ is 1.05. T represents the temperature of the water in the pipe, and the unit of T is degrees Celsius. HRT represents the hydraulic retention time, and the unit of HRT is hours. F represents the shear force, and the unit of F is Pascal. I represents the pipe slope, n represents the pipe fullness, and v represents the flow rate, and the unit of v is meters per second. Among them, I and n are attribute data of the pipe network, and F, v, T, HRT, and θ are all hydraulic data. X all belong to microbial data.

[0079] In this embodiment, the methane release rate can also be calculated using the following formula: Based on Calculate the amount of methane gas in The calculation formula is as follows:

[0080]

[0081] Where Q represents the flow rate in the pipe, and the unit of Q is m 3 / s(m 3 / s is cubic meters per second), D represents the diameter, and the unit of D is m (m is meter). The unit is kg (km·d), kg stands for kilogram, km stands for kilometer, and d stands for day.

[0082] In this embodiment, the calculation of the total carbon loss of the pipe network in step S300 includes: determining the total carbon loss C upstream of the sewage treatment plant Lz The upstream of the sewage treatment plant includes the pipe network and septic tank; according to the upstream total carbon loss C Lz and the total carbon loss of the septic tank C Ls , determine the total carbon loss C of the pipeline network Lp :

[0083] C Lp =C Lz -C Ls ;

[0084] Upstream total carbon loss C Lz That is, the carbon that flows out of the land through the septic tank and pipe network but does not enter the sewage treatment plant, where C Lz The Z in the formula represents the total amount, and CLz The L in stands for loss.

[0085] In this example, the total carbon loss C upstream of the sewage treatment plant is calculated. Lz , including: obtaining the drainage organic matter concentration and the influent organic matter concentration of the sewage treatment plant, the drainage organic matter concentration is the organic matter concentration in the water discharged from the plot, and the plot is the plot where the sewage treatment plant needs to treat sewage; obtaining the drainage volume of the plot and the sewage influent volume of the sewage treatment plant; determining the total upstream carbon loss of the sewage treatment plant based on the influent organic matter concentration, the drainage organic matter concentration, the drainage volume, and the sewage influent volume.

[0086]

[0087] Where C Lz Represents the total upstream carbon loss, C Lz The unit is kilogram per day, Q 排，i represents the drainage volume of the ith plot, Q 排，i The unit is cubic meter per day, COD 排，i Represents the organic matter concentration in the water discharged from the i-th plot, COD 排，i The unit is milligrams per liter, Q 进 Represents the sewage inflow of the sewage treatment plant, Q 进 The unit is cubic meter per day, COD 进 Represents the influent organic matter concentration of the sewage treatment plant, COD 进 The unit is milligrams per liter.

[0088] This example also calculates the ratio of carbon loss caused by the septic tank to the total carbon loss And calculate the ratio of carbon loss caused by pipeline transportation to total carbon loss Among them C Lp Represents carbon loss caused by pipeline transportation.

[0089] In this embodiment, the amount of methane gas can also be calculated using the following formula:

[0090]

[0091] Where, The unit is kg / m 3 , represents the amount of methane discharged per cubic meter of sewage (the unit of methane is kg), A represents the internal surface area of the pipe, V represents the volume of the pipe, and the unit of A / V is meter to the power of -1.

[0092] In this embodiment, the calculation formula for the amount of carbon dioxide is as follows:

[0093]

[0094] Where, represents the amount of carbon dioxide emitted from the mth pipeline. The unit is mg / L, which means milligrams per liter. Sulfate, That is, ammonia nitrogen, NO2 - -N is nitrite nitrogen, NO2 - -N is expressed in milligrams per liter.

[0095] In this embodiment, the calculation formula of the nitrous oxide amount is as follows:

[0096]

[0097] Where, represents the amount of nitrous oxide emitted from the mth pipeline. In this formula, The unit is μg / L, μg / L is micrograms per liter, NO3 - -N stands for nitrate nitrogen, C stands for carbon, N stands for nitrogen, and C / N stands for the carbon-nitrogen ratio in sewage.

[0098] In this embodiment, calculating the first carbon loss of the pipeline network in step S400 includes: obtaining a first conversion coefficient for converting carbon into methane, obtaining a second conversion coefficient for converting carbon into carbon dioxide, and obtaining a third conversion coefficient of carbon consumed by denitrification to produce nitrous oxide; obtaining the first carbon loss of the pipeline network based on the amount of methane gas and the first conversion coefficient, the amount of carbon dioxide and the second conversion coefficient, and the amount of nitrous oxide and the third conversion coefficient.

[0099]

[0100] Where C Lp-G Represents the first carbon loss of the pipeline network, represents the amount of methane emitted from the mth pipeline, M represents the number of pipelines, and in this formula The unit is kg / d (kg / d, i.e., kilograms per day). n1 represents the first conversion coefficient, which is 0.25; n2 represents the second conversion coefficient, which is 1.47; and n3 represents the third conversion coefficient, which is 1.14. This embodiment considers nitrous oxide when calculating the first carbon loss of the pipeline network because nitrous oxide is produced through denitrification, which consumes carbon. Therefore, the consumed carbon needs to be inferred based on nitrous oxide.

[0101] In this embodiment, the total carbon loss C in step S400 is based on the total carbon loss C of the pipeline network. Lp and the first carbon loss C of the pipe network Lp-G , determine the second carbon loss of the pipeline network that is ultimately omitted in the pipeline network sediment. That is, CLp-s =C Lp -C Lp-G , C Lp-s It represents the total carbon loss caused by deposition in the pipeline, which is the second carbon loss of the pipeline network.

[0102] Example 3, based on Example 2, this example calculates the carbon loss COD that is ultimately omitted in each pipeline ss-p,m′-1,m′ , including the following specific steps: determining the second organic matter concentration at the pipeline inlet and the second organic matter concentration at the pipeline outlet included in the second organic matter concentration; calculating the carbon loss COD omitted in each pipeline based on the second organic matter concentration at the pipeline inlet and the second organic matter concentration at the pipeline outlet and the water volume in the pipeline. ss-p,m′-1,m′ .

[0103] This embodiment uses the following formula to calculate COD ss-p,m′-1,m′ :

[0104] COD ss-p,m′-1,m′ =COD p,m′-1 ×Q p,m′-1 / 1000-C Lp-G,m′-1,m′ -COD p,m′ ×Q p,m′ / 1000;

[0105] COD ss-p,m′-1,m′ Represents the carbon loss in the pipeline between the m′-1th node and the m′th node, COD ss-p,m′-1,m′ The unit is kilogram per day, COD p,m′-1 Represents the organic matter concentration at the m′-1th node (this organic matter concentration is the second organic matter concentration at the pipeline inlet), COD p,m′-1 The unit is milligrams per liter, Q p,m′-1 represents the water volume at the m′-1th pipeline node (the water volume is the water inflow), Q p,m′-1 The unit is cubic meters per day, C Lp-G,m′-1,m′ represents the carbon source consumed by the pipeline between the m′-1th node and the m′th node due to gas production, C Lp-G,m′-1,m′ The unit is kilogram per day, COD p,m′ Represents the organic matter concentration at the m'th node (the organic matter concentration is the second organic matter concentration at the pipeline outlet), COD p,m′ The unit is milligrams per liter, Q p,m′ represents the water volume at the m′th node (the water volume is the water output of the pipeline), Q p,m′ The unit is cubic meters per day.

[0106] In summary, this paper integrates the carbon migration pathways from septic tanks to pipe networks to sewage treatment plants, establishing a three-dimensional mass balance calculation system. This system parses the initial carbon source into three dimensions: solid phase (i.e., septic tank waste or pipe sediment), liquid phase (i.e., dissolved organic matter), and gas phase (i.e., fugitive greenhouse gases). This solves the problem of fuzzy boundaries in carbon flux accounting in traditional calculation methods. By constructing a greenhouse gas emissions calculation model and utilizing the system's internal mass balance, this paper achieves a visual analysis of the carbon source distribution in the sewage system.

[0107] This embodiment also provides a carbon source analysis device based on a septic tank and a pipe network, such as Figure 2 As shown, the device includes the following components:

[0108] Septic tank total carbon loss calculation module 01, used to determine the total carbon loss of the septic tank, wherein the total carbon loss of the septic tank is used to represent the carbon that is not transferred from the septic tank to the sewage treatment plant;

[0109] The septic tank second carbon loss calculation module 02 is used to determine the amount of the first gas discharged from the septic tank, determine the amount of carbon source consumed by the septic tank to generate the first gas, record it as the septic tank first carbon loss, and determine the septic tank second carbon loss ultimately omitted in the fecal residue based on the total carbon loss of the septic tank and the first carbon loss of the septic tank;

[0110] The total carbon loss calculation module 03 of the pipeline network is used to determine the total carbon loss of the pipeline network, and the total carbon loss of the pipeline network is used to represent the carbon that is not transferred to the sewage treatment plant;

[0111] The pipeline network second carbon loss calculation module 04 is used to determine the amount of the second gas discharged from the pipeline network, and determine the amount of carbon source consumed by the pipeline network to form the second gas amount, which is recorded as the pipeline network first carbon loss; and based on the total carbon loss of the pipeline network and the first carbon loss of the pipeline network, determine the pipeline network second carbon loss that is ultimately omitted in the pipeline network sediment. The septic tank second carbon loss and the pipeline network second carbon loss are used to convert into available carbon sources for the sewage treatment plant.

[0112] Based on the above embodiment, the present invention further provides a terminal device, whose principle block diagram can be shown as follows: Figure 3 As shown. The terminal device includes a processor, a memory, a network interface, and a display screen connected via a system bus. The processor of the terminal device is used to provide computing and control capabilities. The memory of the terminal device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the terminal device is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor, a carbon source analysis method based on a septic tank and a pipe network is implemented. The display screen of the terminal device can be a liquid crystal display or an electronic ink display.

[0113] Those skilled in the art will understand that Figure 3 The principle block diagram shown in the figure is only a block diagram of a partial structure related to the solution of the present invention, and does not constitute a limitation on the terminal device to which the solution of the present invention is applied. The specific terminal device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0114] In one embodiment, a terminal device is provided. The terminal device includes a memory, a processor, and a septic tank and pipe network-based carbon source analysis program stored in the memory and executable on the processor. When the processor executes the septic tank and pipe network-based carbon source analysis program, the following operating instructions are implemented:

[0115] Determining the total septic tank carbon loss, wherein the total septic tank carbon loss is used to represent the carbon in the septic tank that is not transferred to the wastewater treatment plant;

[0116] Determining the amount of a first gas emitted from the septic tank, determining the amount of carbon source consumed by the septic tank to generate the first gas, recording the amount as a first carbon loss of the septic tank, and determining a second carbon loss of the septic tank ultimately left in the feces residue based on the total carbon loss of the septic tank and the first carbon loss of the septic tank;

[0117] Determine the total carbon loss of the pipeline network, wherein the total carbon loss of the pipeline network is used to represent the carbon that is not transferred to the sewage treatment plant;

[0118] Determine the amount of the second gas discharged from the pipeline network, and determine the amount of carbon source consumed by the pipeline network to form the second gas amount, which is recorded as the first carbon loss of the pipeline network; and based on the total carbon loss of the pipeline network and the first carbon loss of the pipeline network, determine the second carbon loss of the pipeline network that is ultimately omitted in the pipeline network sediment. The second carbon loss of the septic tank and the second carbon loss of the pipeline network are used to convert into available carbon sources for the sewage treatment plant.

[0119] Those skilled in the art will appreciate that all or part of the processes in the above-described embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the above-described embodiments. Among them, any reference to memory, storage, database or other media used in the embodiments provided by the present invention can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct RAM bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM).

[0120] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A carbon source analysis method based on septic tanks and pipe networks, characterized in that: include: Determining the total septic tank carbon loss, wherein the total septic tank carbon loss is used to represent the carbon in the septic tank that is not transferred to the wastewater treatment plant; Determining the amount of a first gas emitted from the septic tank, determining the amount of carbon source consumed by the septic tank to generate the first gas, recording the amount as a first carbon loss of the septic tank, and determining a second carbon loss of the septic tank ultimately left in the feces residue based on the total carbon loss of the septic tank and the first carbon loss of the septic tank; Determine the total carbon loss of the pipeline network, wherein the total carbon loss of the pipeline network is used to represent the carbon that is not transferred to the sewage treatment plant; Determine the amount of the second gas discharged from the pipeline network, and determine the amount of carbon source consumed by the pipeline network to form the second gas amount, which is recorded as the first carbon loss of the pipeline network; and based on the total carbon loss of the pipeline network and the first carbon loss of the pipeline network, determine the second carbon loss of the pipeline network that is ultimately omitted in the pipeline network sediment. The second carbon loss of the septic tank and the second carbon loss of the pipeline network are used to convert into available carbon sources for the sewage treatment plant.

2. The carbon source analysis method based on septic tank and pipe network according to claim 1, characterized in that: Determine the total carbon loss from the septic tank, including: Obtaining the water inflow and first organic matter concentration of the septic tank and the degradation rate of the organic matter by the septic tank; The total carbon loss of the septic tank is determined based on the water inflow, the first organic matter concentration, and the degradation rate.

3. The carbon source analysis method based on septic tank and pipe network according to claim 1, characterized in that: Determining the second carbon loss of the septic tank ultimately omitted in the feces residue based on the total carbon loss of the septic tank and the first carbon loss of the septic tank includes: The total carbon loss of the septic tank is subtracted from the first carbon loss of the septic tank to obtain the second carbon loss of the septic tank that is ultimately omitted in the septic tank.

4. The carbon source analysis method based on septic tank and pipe network according to claim 1, characterized in that: Determine the amount of secondary gas discharged from the network, including: Acquiring attribute data of the pipe network, hydraulic data within the pipe network, and microbial data within the pipe network, and determining the amount of methane gas emitted from the pipe network based on the attribute data, the hydraulic data, and the microbial data; The amount of nitrogen-containing substances and the amount of carbon-containing substances in the sewage in the pipeline network are obtained, and based on the amount of nitrogen-containing substances and the amount of carbon-containing substances, the amount of carbon dioxide and the amount of nitrous oxide discharged from the pipeline network are obtained, and the amount of carbon dioxide, the amount of nitrous oxide and the amount of methane gas are used as the second gas amount.

5. The carbon source analysis method based on septic tank and pipe network according to claim 4, characterized in that: Determining the amount of carbon source consumed by the pipeline network to generate the second gas amount, recorded as a first carbon loss of the pipeline network, includes: Obtaining a first conversion coefficient for converting carbon into methane, obtaining a second conversion coefficient for converting carbon into carbon dioxide, and obtaining a third conversion coefficient for carbon consumed to produce nitrous oxide through denitrification; The first carbon loss of the pipeline network is obtained according to the amount of methane gas and the first conversion coefficient, the amount of carbon dioxide and the second conversion coefficient, and the amount of nitrous oxide and the third conversion coefficient.

6. The carbon source analysis method based on septic tank and pipe network according to claim 1, characterized in that: Determine the total carbon loss of the network, including: Determine the total carbon loss upstream of the sewage treatment plant, including the pipe network and septic tanks; The total carbon loss of the pipeline network is determined based on the total upstream carbon loss and the total septic tank carbon loss.

7. The carbon source analysis method based on septic tank and pipe network according to claim 6, characterized in that: Determine the total upstream carbon losses of the wastewater treatment plant, including: Obtaining the drainage organic matter concentration and the influent organic matter concentration of the sewage treatment plant, wherein the drainage organic matter concentration is the organic matter concentration of sewage discharged from different plots of land, wherein the plots are plots where sewage treatment is required by the sewage treatment plant; Obtaining the drainage volume of the land plot and the sewage inflow volume of the sewage treatment plant; The total upstream carbon loss of the sewage treatment plant is determined based on the influent organic matter concentration, the drainage organic matter concentration, the drainage volume, and the sewage influent volume.

8. A carbon source analysis device based on a septic tank and a pipe network, characterized in that: The device comprises the following components: A septic tank total carbon loss calculation module, used to determine the total carbon loss of the septic tank, wherein the total carbon loss of the septic tank is used to represent the carbon in the septic tank that is not transferred to the sewage treatment plant; a septic tank second carbon loss calculation module, configured to determine the amount of the first gas emitted from the septic tank, determine the amount of carbon source consumed by the septic tank to generate the first gas, record the amount as the septic tank first carbon loss, and determine the septic tank second carbon loss ultimately omitted in the fecal residue based on the total carbon loss of the septic tank and the first carbon loss of the septic tank; A total carbon loss calculation module for the pipeline network, used to determine the total carbon loss of the pipeline network, wherein the total carbon loss of the pipeline network is used to represent the carbon that is not transferred to the sewage treatment plant; The second carbon loss calculation module of the pipeline network is used to determine the amount of the second gas discharged from the pipeline network, and determine the amount of carbon source consumed by the pipeline network to form the second gas amount, which is recorded as the first carbon loss of the pipeline network; and based on the total carbon loss of the pipeline network and the first carbon loss of the pipeline network, determine the second carbon loss of the pipeline network that is ultimately omitted in the pipeline network sediment. The second carbon loss of the septic tank and the second carbon loss of the pipeline network are used to convert into available carbon sources for the sewage treatment plant.

9. A terminal device, characterized in that: The terminal device includes a memory, a processor, and a carbon source analysis program based on a septic tank and a pipe network stored in the memory and runnable on the processor. When the processor executes the carbon source analysis program based on a septic tank and a pipe network, the steps of the carbon source analysis method based on a septic tank and a pipe network as described in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a carbon source analysis program based on a septic tank and a pipe network. When the carbon source analysis program based on a septic tank and a pipe network is executed by a processor, the steps of the carbon source analysis method based on a septic tank and a pipe network as described in any one of claims 1 to 7 are implemented.

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