CN113281480A - Device for measuring carbon emission of sewage and statistical method for carbon emission of sewage - Google Patents
Device for measuring carbon emission of sewage and statistical method for carbon emission of sewage Download PDFInfo
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 96
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 94
- 239000010865 sewage Substances 0.000 title claims abstract description 73
- 238000007619 statistical method Methods 0.000 title claims description 8
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- 238000005070 sampling Methods 0.000 claims abstract description 115
- 238000001514 detection method Methods 0.000 claims abstract description 100
- 239000005431 greenhouse gas Substances 0.000 claims abstract description 85
- 238000000034 method Methods 0.000 claims abstract description 47
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- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 51
- 239000001569 carbon dioxide Substances 0.000 claims description 36
- 238000010792 warming Methods 0.000 claims description 19
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- 238000011897 real-time detection Methods 0.000 abstract description 4
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 40
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 33
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- C02F3/00—Biological treatment of water, waste water, or sewage
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Abstract
The invention discloses a device and a method for measuring carbon emission of sewage, wherein the device is applied to a sewage treatment tank, a tank opening cover of the sewage treatment tank is provided with a gas collecting hood, the gas collecting hood is communicated with an exhaust pipeline, and the device comprises: the system comprises a flow measuring instrument, a sampling pipeline and a gas detection device, wherein the flow measuring instrument is arranged in the exhaust gas pipeline and is used for measuring the flow of the exhaust gas in the exhaust gas pipeline; the sampling pipeline is communicated with the waste gas pipeline; the gas detection device is connected with the sampling pipeline and is used for measuring the concentration of various greenhouse gases in the waste gas in the sampling pipeline. The invention solves the problem that the carbon emission estimation by the traditional emission factor method is not accurate, and realizes the real-time detection and accurate statistics of the carbon emission.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a device for measuring carbon emission of sewage and a method for counting the carbon emission of the sewage.
Background
Global warming caused by the increase of greenhouse gas concentration has generated serious influence on natural ecosystem and human living environment, and becomes a major problem to be solved urgently in the present human society.
CH4、N2O contributes second only to the greenhouse effect than carbon dioxide. In the sewage treatment processThe emission of greenhouse gases mainly comprises direct emission and indirect emission, and the direct emission mainly comprises CO generated in the sewage treatment process2、CH4、N2O and the like, and the indirect discharge is mainly carbon discharge generated by energy consumption of adding medicaments, water pumps and the like in the treatment process. The biochemical treatment process of the sewage is CH4And N2The main source of O, greenhouse gas in the sewage treatment process is mostly in an dissipated form, and the carbon emission is measured by referring to 'national greenhouse gas list guideline for IPCC 2006', and the carbon emission is calculated by using empirical emission data values or experimental values, for example, by detecting Chemical Oxygen Demand (COD) before and after sewage treatment and estimating the carbon emission according to an emission factor method, and the calculation has certain limitations and inaccuracy.
Disclosure of Invention
The invention solves the problem of inaccurate estimation of carbon emission by the traditional emission factor method by providing the device for measuring the carbon emission of the sewage and the method for counting the carbon emission of the sewage, and realizes the real-time detection and accurate statistics of the carbon emission.
In order to achieve the above object, the present invention provides a device for measuring carbon emission from sewage, which is applied to a sewage treatment tank, wherein a tank opening cover of the sewage treatment tank is provided with a gas collecting hood, the gas collecting hood is communicated with an exhaust gas pipeline, and the device comprises: the system comprises a flow measuring instrument, a sampling pipeline and a gas detection device, wherein the flow measuring instrument is arranged in the exhaust gas pipeline and is used for measuring the flow of the exhaust gas in the exhaust gas pipeline; the sampling pipeline is communicated with the waste gas pipeline; the gas detection device is connected with the sampling pipeline and is used for measuring the concentration of various greenhouse gases in the waste gas in the sampling pipeline.
Optionally, the gas detection device comprises: CO 22Detection module, CH4Detection module and N2O detection module, the CO2A detection module connected with the sampling pipe, the CO2The detection module is used for measuring CO in the sampling pipeline2The concentration of (c); the CH4Detection module and the sameSampling pipe connection, CH4The detection module is used for measuring CH in the sampling pipeline4The concentration of (c); said N is2O detection module connected with the sampling pipeline, N2The O detection module is used for measuring N in the sampling pipeline2The concentration of O.
Optionally, the device for measuring carbon emission of sewage further comprises: the sampling pump, the sampling pump is located on the sampling pipeline, just the sampling pump is located the sampling pipeline with exhaust gas conduit's tie point with between the gaseous detection device.
Optionally, a waste gas purification device is arranged on the waste gas pipeline, and a connection point of the sampling pipeline and the waste gas pipeline is located between the gas collecting hood and the waste gas purification device.
Optionally, the device for measuring carbon emission of sewage further comprises: the pretreatment device is arranged on the sampling pipeline, is positioned between the connection point of the sampling pipeline and the waste gas pipeline and the gas detection device, and is one or more of a dust removal filter, a heater, a refrigerator, a humidifier and a dehumidifier.
Optionally, the device for measuring carbon emission of sewage further comprises: the sampling mouth, correspond on the exhaust gas pipeline the sampling mouth has been seted up to the junction of sampling pipeline, the sampling mouth is located in the sampling mouth, just the sampling mouth with the sampling pipeline links to each other.
In order to achieve the above object, the present invention further provides a method for counting carbon emissions in wastewater, which is used for counting the measurement data of the measurement device according to any one of the above embodiments, and the method for counting carbon emissions in wastewater comprises the following steps:
acquiring the flow rate of the exhaust gas measured by a flow meter of the measuring device and the concentration of various greenhouse gases measured by the gas detecting device;
calculating the emission amount of each greenhouse gas according to the waste gas flow and the concentration of each greenhouse gas;
outputting the carbon dioxide equivalent determined based on the amount of each of said greenhouse gases emitted.
Further, the step of outputting the carbon dioxide equivalent determined based on the emission of each of the greenhouse gases comprises:
acquiring a global warming potential value corresponding to each greenhouse gas;
calculating the carbon dioxide equivalent of each greenhouse gas according to the emission of each greenhouse gas and the corresponding global warming potential;
outputting carbon dioxide equivalents for each of said greenhouse gases.
Further, after the step of outputting the carbon dioxide equivalent determined based on the emission amount of each of the greenhouse gases, the method further comprises:
calculating the total carbon emission of all the greenhouse gases according to the carbon dioxide equivalent of each greenhouse gas;
outputting the total carbon emission of all the greenhouse gases.
Further, the step of acquiring the exhaust gas flow rate measured by the flow rate measuring instrument of the measuring device and the concentrations of the various greenhouse gases measured by the gas detecting device includes:
acquiring target time information;
and acquiring the exhaust gas flow and concentration corresponding to the target time information, wherein the exhaust gas flow and concentration are respectively measured by a flow measuring instrument of the measuring device and a gas detection device at the time point or time period corresponding to the target time information.
One or more technical schemes provided by the invention at least have the following technical effects or advantages:
in the technical scheme of the invention, a gas collecting hood is arranged on a tank opening cover of a sewage treatment tank, the gas collecting hood is communicated with a waste gas pipeline, a flow measuring instrument is arranged in the waste gas pipeline, and a gas detection device is connected with a sampling pipeline. The flow meter can detect the waste gas flow in the waste gas pipeline in real time, and the gas detection device can detect various greenhouse gases (CO) in the waste gas in real time2、CH4、N2O, etc.) fromAnd counting the carbon emission of the waste gas according to the detection data. Compared with the method of calculating by using empirical discharge data values or experimental values, the method adopts a direct measurement method to detect all data in real time, can accurately count the carbon discharge amount contained in the waste gas generated in the sewage biochemical treatment process, and is favorable for effectively monitoring and checking the carbon discharge amount.
Drawings
FIG. 1 is a schematic structural diagram of a device for measuring carbon emission from wastewater according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a first embodiment of a statistical method for carbon emissions according to the present invention;
FIG. 3 is a flow chart illustrating a second embodiment of a method for counting carbon emissions according to the present invention;
FIG. 4 is a flow chart of a third embodiment of the method for counting carbon emissions according to the present invention;
FIG. 5 is a flow chart of a fourth embodiment of the method for counting carbon emissions according to the present invention.
The reference numbers illustrate:
reference numerals | Name (R) | Reference numerals | Name (R) |
100 | |
240 | Flow |
110 | Gas- |
251 | CO2Detection module |
120 | |
252 | CH4Detection module |
130 | Air pump | 253 | N2 |
140 | Exhaust |
260 | |
210 | |
270 | |
220 | |
280 | Processor with a memory having a plurality of |
290 | Controller |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
For a better understanding of the above technical solutions, exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Referring to fig. 1, the present invention provides a device for measuring carbon emission from wastewater, which is applied to a wastewater treatment tank 100, wherein a gas collecting hood 110 is disposed at a tank opening cover of the wastewater treatment tank 100, the gas collecting hood 110 is communicated with a waste gas pipeline 120, and the device comprises: a flow meter 240, a sampling pipe 220, and a gas detection device, wherein the flow meter 240 is disposed in the exhaust gas pipe 120, and the flow meter 240 is used for measuring the flow rate of the exhaust gas in the exhaust gas pipe 120; the sampling pipe 220 communicates with the exhaust pipe 120; the gas detection device is connected with the sampling pipeline 220, and the gas detection device is used for measuring the concentration of various greenhouse gases in the waste gas in the sampling pipeline 220.
Specifically, the sewage treatment tank 100 may be a biochemical treatment tank, and the sewage treatment tank 100 is provided with a water inlet and a water outlet. Generally, the sewage discharged from the pollution source does not meet the requirement of discharge standard or meet the requirement of environmental capacity due to high total content or concentration of pollutants. Can lead the sewage discharged from the pollution source into the sewage treatment tank 100 from the water inlet of the sewage treatment tank 100, carry out biochemical treatment on the sewage in the sewage treatment tank 100 to ensure that the sewage reaches the standard, and then lead the treated sewage from the sewage treatment tank 100And (4) discharging from a water outlet. In the sewage treatment process, waste gas containing CO is generated2、CH4、N2And greenhouse gases such as O. The mouth of the sewage treatment tank 100 is covered with the gas collecting hood 110, so as to prevent the waste gas from diffusing around to cause environmental pollution, the gas collecting hood 110 is communicated with the waste gas pipeline 120, the waste gas pipeline 120 is provided with the air pump 130, the air pump 130 can be arranged in front of the flow measuring instrument 240, and the air pump 130 is used for pumping the waste gas in the sewage treatment tank 100 out, so that the waste gas is intensively discharged through the waste gas pipeline 120.
In this embodiment, the flow meter 240 is installed in the exhaust gas duct 120, and the flow meter 240 can detect the flow rate of the exhaust gas in the exhaust gas duct 120 in real time; the gas detection device is arranged in the sampling pipeline 220 communicated with the waste gas pipeline 120, waste gas enters the gas detection device through the waste gas pipeline 120 and the sampling pipeline 220 in sequence, the gas detection device measures and analyzes the components of the waste gas, and various greenhouse gases (CO) in the waste gas can be detected in real time2、CH4、N2O, etc.). The specific structure of the flow meter 240 and the gas detection device may adopt the prior art, and will not be described herein.
The device for measuring carbon emission of sewage further comprises a processor 280, wherein the output end of the flow measuring instrument 240 is electrically connected with the input end of the processor 280, and the output end of the gas detection device is electrically connected with the input end of the processor 280. The flow meter 240 transmits the detected exhaust gas flow to the processor 280, and the gas detection device detects various greenhouse gases (CO)2、CH4、N2O, etc.) to the processor 280, and the processor 280 processes the data to count the amount of carbon emission contained in the exhaust gas generated during the biochemical treatment of the sewage. Compared with the method of calculating by using empirical discharge data values or experimental values, the embodiment of the invention adopts a direct measurement method to detect all data in real time, can accurately count the carbon discharge amount, and is beneficial to effectively monitoring and checking the carbon discharge amount.
In an embodiment of the present invention, referring to fig. 1, the gas detecting apparatus includes: CO 22 A detection module 251,CH4Detection module 252 and N2 O detection module 253, the CO2The detection module 251 is connected to the sampling pipe 220, the CO2The detection module 251 is used for measuring CO in the sampling pipeline 2202The concentration of (c); the CH4The detection module 252 is connected to the sampling pipe 220, the CH4The detection module 252 is used for measuring the CH in the sampling pipe 2204The concentration of (c); said N is2The O detection module 253 is connected with the sampling pipeline 220, and N is2The O detection module 253 is used for measuring N in the sampling pipeline 2202The concentration of O.
In the biochemical treatment process of sewage, the generated greenhouse gases are mainly carbon dioxide, methane and nitrous oxide, and therefore, in the embodiment, the gas detection device mainly detects the concentrations of three greenhouse gases, namely carbon dioxide, methane and nitrous oxide. Specifically, the gas detection device comprises CO2Detection module 251, CH4Detection module 252 and N2 O detection Module 253, CO2Detection module 251, CH4Detection module 252 and N2The O detection module 253 is connected in series to the sampling pipe 220, and the gas detection device outputs the concentration values of the detected greenhouse gases. Therefore, each gas detection module can respectively and independently detect the concentration of one kind of greenhouse gas, the detection of different gas detection modules is not interfered with each other, and the concentration of carbon dioxide, methane and nitrous oxide can be detected more quickly and accurately. The specific structure of the gas detection device can adopt the prior art, and is not described herein again.
In an embodiment of the present invention, referring to fig. 1, the apparatus for measuring carbon emission from sewage further includes: a sampling pump 260, wherein the sampling pump 260 is disposed on the sampling pipe 220, and the sampling pump 260 is located between the connection point of the sampling pipe 220 and the exhaust pipe 120 and the gas detection device.
In this embodiment, the sampling pump 260 is an air pump, which is a device for removing air from a closed space or adding air from a closed space, and can be used as a power source for outputting and guiding air flow. The sampling pump 260 and the gas detection device are disposed on the sampling pipe 220, and the sampling pump 260 is located upstream of the gas detection device, that is, when the sampling pump 260 is pumped, the exhaust gas flows into the sampling pipe 220 from the exhaust pipe 120 and flows to the gas detection device along the sampling pipe 220, and the gas detection device detects the concentrations of the three greenhouse gases, i.e., carbon dioxide, methane and nitrous oxide. Further, the rear end of the sampling pipeline 220 is also split to form three sampling pipelines 220 and respectively connected with the CO2Detection module 251, CH4Detection module 252 and N2The O detection module 253, at this time, the exhaust gas enters the three sampling pipes 220 along the sampling pipes 220 under the pumping action of the sampling pump 260, and is CO-purified by the CO purification module2Detection module 251, CH4Detection module 252 and N2The O detection module 253 detects the concentrations of three greenhouse gases, i.e., carbon dioxide, methane, and nitrous oxide, respectively.
In an embodiment of the present invention, referring to fig. 1, an exhaust gas purifying device 140 is disposed on the exhaust gas pipe 120, and a connection point of the sampling pipe 220 and the exhaust gas pipe 120 is located between the gas collecting hood 110 and the exhaust gas purifying device 140.
In this embodiment, one end of the exhaust gas pipe 120 is communicated with the gas collecting channel 110, the other end of the exhaust gas pipe 120 is communicated with the outside, and the exhaust gas generated in the sewage biochemical treatment process flows along the exhaust gas pipe 120 after being collected by the gas collecting channel 110, and is finally discharged from the outlet of the exhaust gas pipe 120. In order to prevent the exhaust gas from polluting the environment, the exhaust gas purifying device 140 is disposed on the exhaust gas pipe 120, and the exhaust gas is purified and filtered by the exhaust gas purifying device 140, and then the exhaust gas meeting the emission standard is discharged. The specific structure of the exhaust gas purification device 140 may adopt the prior art, such as activated carbon adsorption or filter screen filtration, to purify the exhaust gas, which is not described herein again. In addition, the exhaust gas purification device 140 is disposed at a downstream position of the sampling pipe 220 in the extending direction of the exhaust gas pipe 120, so that the exhaust gas flowing into the sampling pipe 220 is ensured to be not subjected to purification treatment, thereby ensuring the reality, effectiveness and accuracy of the carbon emission statistical result.
In an embodiment of the present invention, referring to fig. 1, the apparatus for measuring carbon emission from sewage further includes: the pretreatment device 270, the pretreatment device 270 is disposed on the sampling pipe 220, the pretreatment device 270 is located between the connection point of the sampling pipe 220 and the exhaust pipe 120 and the gas detection device, and the pretreatment device 270 is one or more of a dust removal filter, a heater, a refrigerator, a humidifier and a dehumidifier.
In this embodiment, the sampling pipeline 220 is located the upstream of the gas detection device and is further provided with a pretreatment device 270, and the pretreatment device 270 is mainly used for purifying and dedusting the sample gas, so as to ensure that the sample gas meets the detection requirements of the gas detection device, such as ultra-clean, constant temperature and humidity, and further ensure the accuracy and reliability of the detection of the gas detection device. The specific structure of the pretreatment device 270 may adopt the prior art, such as performing dust removal treatment on the sample gas through a dust removal filter, and the like, and will not be described herein again.
In an embodiment of the present invention, referring to fig. 1, the apparatus for measuring carbon emission from sewage further includes: sampling mouth 210, exhaust pipe 120 is last to correspond the sampling mouth has been seted up to the junction of sampling pipe 220, sampling mouth 210 locates in the sampling mouth, just sampling mouth 210 with sampling pipe 220 links to each other.
In this embodiment, the sampling pipe 220 is communicated with the exhaust pipe 120 through the sampling nozzle 210, the exhaust gas in the exhaust pipe 120 enters the sampling pipe 220 through the sampling nozzle 210, and the gas detection device detects the concentration of various greenhouse gases in the exhaust gas in the sampling pipe 220. The carbon emission measuring device may use a constant sampling principle, that is, to obtain a representative sample gas, the flow rate of the exhaust gas containing greenhouse gases entering the sampling nozzle 210 is equal to the exhaust gas flow rate of the sampling point in the exhaust gas pipe 120 during the whole sampling process. It will be readily appreciated that when the exhaust flow rate at the point of measurement is less than the flow rate of the exhaust gas entering the sampling nozzle 210, the measured concentration value of the greenhouse gas is lower; when the exhaust flow rate at the point of measurement is greater than the flow rate of the exhaust gas entering the sampling nozzle 210, the measured concentration value of the greenhouse gas is higher. The sampling flow velocity is equal to the waste gas flow velocity of the sampling point (the relative error is within minus 5 percent to plus 10 percent), the sample gas concentration can be ensured to be equal to the actual waste gas concentration, and therefore the deviation of the sampling result is avoided.
In the embodiment of the present invention, the processor 280 is further electrically connected to a display screen, and the real-time detection data and the statistical result are finally output to the display screen for the staff to view. In addition, the device for measuring carbon emission of wastewater further includes a controller 290, the flow meter, and a gas detector (including CO)2 Detection module 251, CH4Detection module 252 and N2The O detection module 253), the exhaust gas purification device 140, the pretreatment device 270, the processor 280 and the display screen are all connected with the controller 290, and the controller 290 controls all parts uniformly and coordinates all parts to work orderly. The controller 290 may also be communicatively connected to a server of the monitoring platform to remotely transmit the real-time data and the statistical results to the environmental protection department, the carbon check department, and other relevant departments, thereby providing a basis for the decision of the government department.
Based on the hardware architecture of the device for measuring carbon emission in sewage, the invention further provides a method for counting carbon emission in sewage, which is used for counting the measurement data of the measuring device in any one of the embodiments.
Example one
Referring to fig. 2, a first embodiment of the method for counting carbon emissions in wastewater according to the present invention is provided, wherein the method for counting carbon emissions in wastewater comprises the following steps:
step S10, the exhaust gas flow rate measured by the flow rate measuring instrument 240 of the measuring device and the concentration of each greenhouse gas measured by the gas detecting device are acquired.
When sewage treatment is performed, sewage discharged from a pollution source is guided into the sewage treatment tank 100 from a water inlet of the sewage treatment tank 100, biochemical treatment is performed on the sewage in the sewage treatment tank 100, the sewage reaches the standard, and then the treated sewage is discharged from a water outlet of the sewage treatment tank 100. In the sewage treatment process, waste gas containing CO is generated2、CH4、N2And greenhouse gases such as O. The mouth of the sewage treatment tank 100 is covered with a coverThe gas collecting channel 110 can prevent the exhaust gas from diffusing around to cause environmental pollution, the gas collecting channel 110 is communicated with an exhaust gas pipeline 120, the exhaust gas pipeline 120 is provided with an air pump 130, and the air pump 130 pumps the exhaust gas in the sewage treatment tank 100 out, so that the exhaust gas is intensively discharged through the exhaust gas pipeline 120.
In order to detect the exhaust gas flow and the concentration of various greenhouse gases for the subsequent carbon emission statistics, a sewage carbon emission measurement device is used for detection, wherein a flow meter 240 is installed in the exhaust gas pipeline 120, and a gas detection device is installed in a sampling pipeline 220 communicated with the exhaust gas pipeline 120. The flow meter 240 may detect the exhaust gas flow in the exhaust gas pipe 120 in real time, such as an instantaneous flow at a certain point in time or an accumulated flow over a certain period of time; the waste gas enters the gas detection device through the waste gas pipeline 120 and the sampling pipeline 220 in sequence, and the gas detection device measures and analyzes the components of the waste gas, so that various greenhouse gases (CO) in the waste gas can be detected in real time2、CH4、N2O, etc.). The gas detection means may comprise CO2Detection module 251, CH4Detection module 252 and N2The O detection module 253 detects the concentrations of carbon dioxide, methane, and nitrous oxide in the exhaust gas in real time, respectively. The gas detection device can analyze and detect different greenhouse gases by various methods, such as infrared analysis: according to the characteristic that different component gases have selective absorption to infrared rays with different wavelengths, the types of the gases can be distinguished by measuring the absorption spectrum, the concentration of the gas to be detected can be determined by measuring the absorption intensity, the gas is sent into a test chamber, one side of the gas is irradiated by the infrared rays, and the attenuation degree of the received infrared rays is measured by a sensor on the other side; as another example, thermal conductivity analysis: according to the principle that different gases have different heat conduction capacities, the content of certain components in the mixed gas is calculated by measuring the heat conduction coefficient of the mixed gas, the direct measurement of the heat conduction coefficient of the gas is difficult, the change of the heat conduction coefficient of the gas can be converted into the change of a resistor through a thermosensitive element, and then the change of the heat conduction coefficient of the gas is measured by an electric bridge.
The device for measuring carbon emission of sewage further comprises a processor 280, an output end of the flow measuring instrument 240 and an input end of the processor 280The output of the electrical connection, gas detection device is electrically connected to the input of processor 280. The processor 280 is an execution body, and collects real-time exhaust gas flow data by the flow meter 240 and various real-time greenhouse gases (CO) by the gas detection device2、CH4、N2O, etc.). The processor 280 calls the program stored in the memory to execute the method for counting the carbon emission of the sewage, i.e., the data is processed to count the carbon emission contained in the waste gas generated in the biochemical treatment process of the sewage. The processor 280 is also electrically connected to a display screen, and the real-time detection data and the statistical result are finally output to the display screen for the staff to check.
In addition, the device for measuring carbon emission in sewage further comprises a controller 290, the flow measuring instrument 240, the gas detecting device, the processor 280 and the display are all connected with the controller 290, and the controller 290 is used for controlling all parts uniformly and coordinating all parts to work orderly. The controller 290 may also be communicatively connected to a server of the monitoring platform to remotely transmit the real-time data and the statistical results to the environmental protection department, the carbon check department, and other relevant departments, thereby providing a basis for the decision of the government department.
Compared with the method of calculating by using empirical discharge data values or experimental values, the embodiment of the invention adopts a direct measurement method to detect all data in real time, can accurately count the carbon discharge amount, and is beneficial to effectively monitoring and checking the carbon discharge amount.
And step S20, calculating the discharge amount of each greenhouse gas according to the waste gas flow and the concentration of each greenhouse gas.
Because greenhouse gases are contained in the exhaust gas, the detected exhaust gas flow rate can represent the flow rate of various greenhouse gases. The real-time waste gas flow is multiplied by the concentration of various greenhouse gases to obtain the emission of various greenhouse gases in unit time, and the calculation formula is as follows: CO 22Discharge capacity: mCO2=F×CCO2×h;CH4Discharge capacity: mCH4=F×CCH4×h;N2O emission: mNO2=F×CNO2Xh (F denotes flow)Amount, C represents concentration, h represents time), so that the carbon emission amount of the exhaust gas at a certain point in time can be further counted. In the above formula, the detected exhaust gas flow is the instantaneous exhaust gas flow at a certain time point, and the instantaneous exhaust gas flow multiplied by the time length is the accumulated exhaust gas flow, so that the accumulated carbon emission of the exhaust gas in a certain time period can be further counted.
And step S30, outputting the carbon dioxide equivalent determined based on the emission amount of each greenhouse gas.
Carbon dioxide equivalent emissions, refers to a unit of measure used to compare emissions of different greenhouse gases. The contribution degree of different greenhouse gases to the enhancement of the global greenhouse effect is different, and in order to measure the overall enhancement degree of the greenhouse effect uniformly, the equivalent of the greenhouse gas carbon dioxide which is most frequently generated by human activities is used as a basic unit for measuring the enhancement degree of the greenhouse effect. For example, the emission of methane based on the previous step needs to be converted into corresponding carbon dioxide equivalent output for statistics. The embodiment of the invention adopts a direct measurement method, detects various data in real time, and can accurately count the carbon emission so as to monitor and check the carbon emission.
Example two
Referring to fig. 3, a second embodiment of the statistical method for carbon emissions in wastewater according to the present invention is provided based on the first embodiment, wherein the step S30 includes:
step S31, acquiring a global warming potential value corresponding to each greenhouse gas;
step S32, calculating the carbon dioxide equivalent of each greenhouse gas according to the emission of each greenhouse gas and the corresponding global warming potential;
and step S33, outputting the carbon dioxide equivalent of each greenhouse gas.
The contribution degree of different greenhouse gases to the enhancement of the global warming effect is different. Global Warming Potential (GWP), which is an index of the greenhouse effect of a substance, refers to the Global Warming effect of greenhouse gases, and is expressed by relative values of 1 unit of carbon dioxide based on carbon dioxide, and 1 Global Warming Potential (Global Warming Potential) of 1 unit of carbon dioxide. Carbon dioxide is used as a reference gas because it has the greatest effect on global warming. The global warming potential value will change over time, and the inter-government climate change committee (IPCC) proposed a global warming potential of 100 years as a control standard, a value that is generally accepted. For example, the "kyoto protocol" uses parameters where the global warming potential of carbon dioxide over a 100 year time span is 1, methane over a 100 year time span is 25, and nitrous oxide over a 100 year time span is 298. Although there are many scoring methods for measuring the intensity of greenhouse gases, GWP values are undoubtedly the most valuable to refer to, especially as the basis for policy measures.
When converting greenhouse gases into corresponding carbon dioxide, taking methane as an example, the carbon dioxide equivalent corresponding to methane can be obtained by multiplying the emission of methane by the global warming potential of methane. The memory may store mapping relationships between various greenhouse gases and corresponding global warming potentials in advance, and when the processor 280 needs to convert one of the greenhouse gases into a corresponding carbon dioxide equivalent, the processor may call the global warming potential corresponding to the greenhouse gas through the mapping relationship, so as to perform the conversion.
EXAMPLE III
Referring to fig. 4, a third embodiment of the method for counting carbon emissions in wastewater according to the present invention is provided based on the first embodiment, and in the third embodiment, after the step of S30, the method further includes:
step S40, calculating the total carbon emission of all greenhouse gases according to the carbon dioxide equivalent of each greenhouse gas;
and step S50, outputting the total carbon emission of all the greenhouse gases.
In this embodiment, after the carbon dioxide equivalent of each greenhouse gas is obtained by calculation, the carbon dioxide equivalent of all greenhouse gases is further summed to obtain the total carbon emission of the exhaust gas, and the calculation formula is: wCarbon (C)=MCO2+MCH4×GWPCH4+MN2O×GWPN2O. The processor 280 counts the total carbon emission of various greenhouse gases according to the method, and outputs the total carbon emission to the display for the staff to check, so that the staff can know the total carbon emission caused by the waste gas generated in the sewage biochemical treatment process more directly.
Example four
Referring to fig. 5, a fourth embodiment of the statistical method for carbon emissions in wastewater according to the present invention is provided based on the first embodiment, wherein the step S10 includes:
step S11, acquiring target time information;
step S12, acquiring the exhaust gas flow rate and the exhaust gas concentration corresponding to the target time information, wherein the exhaust gas flow rate and the exhaust gas concentration are respectively measured by the flow rate measuring instrument 240 of the measuring device and the gas detecting device at the time point or the time period corresponding to the target time information.
In this embodiment, the real-time carbon emission at a specific time point may be counted, and the cumulative carbon emission in a specific time period may also be counted. When the real-time carbon emission needs to be counted, the obtained target time information is a designated time point, then the instantaneous exhaust gas flow value detected by the flow rate measuring instrument 240 at the designated time point and the real-time concentration values of various greenhouse gases detected by the gas detecting device at the designated time point are obtained, and the real-time carbon emission can be calculated according to the counting method of the embodiment; when the accumulated carbon emission needs to be counted, the obtained target time information is a specified time period, then, the accumulated exhaust gas flow value detected by the flow meter 240 in the specified time period is obtained, the accumulated exhaust gas flow value can be obtained by obtaining an instantaneous exhaust gas flow value at a certain time point in the specified time period and multiplying the time length, and the average concentration value of various greenhouse gases detected by the gas detection device in the specified time period is obtained, the average concentration value can be obtained by obtaining an average value of a plurality of concentration values at different time points in the specified time period, and then, the accumulated carbon emission can be calculated according to the statistical method of the above embodiment. By outputting different indexes such as real-time carbon emission and accumulated carbon emission, the carbon emission can be more clearly mastered by the workers.
Since the system described in the embodiment of the present invention is a system used for implementing the method in the embodiment of the present invention, a person skilled in the art can understand the specific structure and the deformation of the system based on the method described in the embodiment of the present invention, and thus the detailed description is omitted here. All systems adopted by the method of the embodiment of the invention belong to the protection scope of the invention.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a controller of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the controller of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the invention without departing from the invention
With clear spirit and scope. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides a measuring device of sewage carbon emission is applied to sewage treatment pond, its characterized in that, the pool mouth lid of sewage treatment pond is equipped with the gas collecting channel, the gas collecting channel intercommunication has exhaust duct, measuring device of sewage carbon emission includes:
a flow meter disposed within the exhaust gas conduit, the flow meter for measuring a flow of exhaust gas within the exhaust gas conduit;
a sampling conduit in communication with the exhaust conduit;
and the gas detection device is connected with the sampling pipeline and is used for measuring the concentration of various greenhouse gases in the waste gas in the sampling pipeline.
2. The apparatus for measuring carbon emissions from wastewater according to claim 1, wherein said gas detecting means comprises:
CO2detection module, the CO2A detection module connected with the sampling pipe, the CO2The detection module is used for measuring CO in the sampling pipeline2The concentration of (c);
CH4detection module, the CH4The detection module is connected with the sampling pipeline, and the CH4The detection module is used for measuring CH in the sampling pipeline4The concentration of (c);
N2o detection module, said N2O detection module connected with the sampling pipeline, N2The O detection module is used for measuring N in the sampling pipeline2The concentration of O.
3. The apparatus for measuring carbon emissions from wastewater according to claim 1, further comprising:
the sampling pump, the sampling pump is located on the sampling pipeline, just the sampling pump is located the sampling pipeline with exhaust gas conduit's tie point with between the gaseous detection device.
4. The apparatus for measuring carbon emissions from wastewater as set forth in claim 1, wherein the exhaust gas conduit is provided with an exhaust gas purification device, and the connection point of the sampling conduit and the exhaust gas conduit is located between the gas-collecting hood and the exhaust gas purification device.
5. The apparatus for measuring carbon emissions from wastewater according to claim 1, further comprising:
the pretreatment device is arranged on the sampling pipeline, is positioned between the connection point of the sampling pipeline and the waste gas pipeline and the gas detection device, and is one or more of a dust removal filter, a heater, a refrigerator, a humidifier and a dehumidifier.
6. The apparatus for measuring carbon emissions from wastewater according to claim 1, further comprising:
the sampling mouth, correspond on the exhaust gas pipeline the sampling mouth has been seted up to the junction of sampling pipeline, the sampling mouth is located in the sampling mouth, just the sampling mouth with the sampling pipeline links to each other.
7. A statistical method of carbon emission amount of sewage for making statistics of measurement data of the measuring apparatus according to any one of claims 1 to 6, wherein the statistical method of carbon emission amount of sewage comprises the steps of:
acquiring the flow rate of the exhaust gas measured by a flow meter of the measuring device and the concentration of various greenhouse gases measured by the gas detecting device;
calculating the emission amount of each greenhouse gas according to the waste gas flow and the concentration of each greenhouse gas;
outputting the carbon dioxide equivalent determined based on the amount of each of said greenhouse gases emitted.
8. The method of claim 7, wherein the step of outputting the carbon dioxide equivalent determined based on the amount of each greenhouse gas emitted comprises:
acquiring a global warming potential value corresponding to each greenhouse gas;
calculating the carbon dioxide equivalent of each greenhouse gas according to the emission of each greenhouse gas and the corresponding global warming potential;
outputting carbon dioxide equivalents for each of said greenhouse gases.
9. The method for counting carbon emissions from wastewater according to claim 7, wherein said step of outputting a carbon dioxide equivalent determined based on the emission of each of said greenhouse gases further comprises:
calculating the total carbon emission of all the greenhouse gases according to the carbon dioxide equivalent of each greenhouse gas;
outputting the total carbon emission of all the greenhouse gases.
10. The method for counting carbon emissions in wastewater according to claim 7, wherein the step of obtaining the exhaust gas flow measured by the flow meter of the measuring device and the concentrations of the various greenhouse gases measured by the gas detecting device comprises:
acquiring target time information;
and acquiring the exhaust gas flow and concentration corresponding to the target time information, wherein the exhaust gas flow and concentration are respectively measured by a flow measuring instrument of the measuring device and a gas detection device at the time point or time period corresponding to the target time information.
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