Greenhouse gas on-line monitoring method and system

Abstract

The invention provides a greenhouse gas on-line monitoring method and system. The method comprises the following steps: carrying out continuous greenhouse gas monitoring through greenhouse gas analyzers of a plurality of sampling point positions which are optimally designed in a sewage treatment plant; and when abnormity is monitored, online alarm is carried out. The system is high in integration level and adaptability, can adapt to various ventilation modes and process configurations, and solves the problems that point location selection is difficult and layout is unreasonable in a traditional monitoring method. From sampling point transformation to sensor installation and data acquisition and transmission, the method has good standardization and reproducibility, and is convenient to popularize and apply in sewage treatment plants of different types and scales. Compared with a traditional method which depends on manual sampling and analysis of professionals, automatic collection and remote transmission are achieved, the operation and maintenance cost is reduced, and user friendliness is enhanced.

Description

Technical Field

[0001] This invention relates to the field of greenhouse gas monitoring technology, and in particular to methods and systems for online greenhouse gas monitoring. Background Technology

[0002] Currently, deodorization devices play a crucial role in traditional wastewater treatment processes, especially in addressing odorous gas emissions. However, traditional monitoring methods for deodorization device exhaust pipes still face numerous challenges. First, traditional monitoring methods often rely on manual sampling and laboratory analysis, which is not only cumbersome but also susceptible to human error, compromising data timeliness and accuracy. Second, due to the complex and variable layout of exhaust pipes, traditional monitoring point selection and deployment methods often fail to adapt to different process modes and ventilation configurations, resulting in the ineffective acquisition of some key emission data. Furthermore, many existing monitoring systems suffer from low standardization and a lack of widely applicable technical pathways, limiting their widespread application. Finally, existing monitoring systems fail to effectively support the real-time acquisition and accurate calculation of carbon emission data.

[0003] Therefore, developing an online monitoring system that can adapt to various operating conditions and ventilation modes and can collect and remotely transmit greenhouse gas emission data from exhaust pipes in real time is of great significance for improving the environmental management level of wastewater treatment plants and supporting carbon emission accounting. Summary of the Invention

[0004] One of the objectives of this invention is to provide an online greenhouse gas monitoring method to address the problems in the prior art.

[0005] The online greenhouse gas monitoring method provided in this invention includes:

[0006] Continuous greenhouse gas monitoring is conducted using greenhouse gas analyzers at multiple optimized sampling points within the wastewater treatment plant; online alarms are triggered when anomalies are detected.

[0007] Optionally, the steps for optimizing the design of each sampling point include:

[0008] Sampling ports were set up in a stable pipe section between the deodorization unit and the discharge outlet / chimney outlet in the wastewater treatment plant, and these sections were used as sampling points.

[0009] If different process sections within a wastewater treatment plant have independent deodorization units, sampling points should be set up for each process section; if there are multiple parallel deodorization units in the same process section, one of them should be selected as a sampling point.

[0010] Optionally, the greenhouse gas analyzer is connected to anti-interference power cables and gas sampling pipelines, and placed in a safety protection box. Its flow meter is installed at the sampling port and is powered through the safety protection box.

[0011] The safety protection box and flow meter are covered with rainproof covers, and the safety protection box is raised.

[0012] The safety enclosure is equipped with an air conditioner and a thermometer and hygrometer, and is also equipped with a dryer to dry the greenhouse gases from the sampling line that will enter the analyzer;

[0013] The safety enclosure is equipped with a backup power supply and data storage devices, which are connected to the greenhouse gas analyzer.

[0014] Optionally, when conducting continuous greenhouse gas monitoring using greenhouse gas analyzers at multiple optimized sampling points within the wastewater treatment plant, monitoring should be carried out in a timely manner, provided that the detection data is representative of the annual climate.

[0015] Optionally, when an anomaly is detected and an online alarm is triggered, the alarm will notify the monitoring personnel.

[0016] Optional online greenhouse gas monitoring methods also include:

[0017] The monitoring data from continuous greenhouse gas monitoring using greenhouse gas analyzers at multiple optimized sampling points within the wastewater treatment plant will be uploaded to a cloud database in real time.

[0018] The data uploaded to the cloud database is validated and outliers are removed at preset event intervals.

[0019] Optionally, when conducting continuous greenhouse gas monitoring using greenhouse gas analyzers at multiple optimized sampling points within a wastewater treatment plant, monitoring may be suspended in the event of extreme weather.

[0020] Optionally, the cloud database also stores environmental parameters and equipment malfunctions obtained from the greenhouse gas analyzers at each sampling point through operation and maintenance.

[0021] Optionally, based on monitoring data from continuous greenhouse gas monitoring using greenhouse gas analyzers at multiple optimized sampling points within the wastewater treatment plant, decision support can be provided for the accounting, assessment, and emission reduction management of carbon emissions from the wastewater treatment plant.

[0022] An online greenhouse gas monitoring system provided in this embodiment of the invention includes:

[0023] The monitoring module is used for continuous greenhouse gas monitoring through greenhouse gas analyzers at multiple sampling points optimized within the wastewater treatment plant;

[0024] The alarm module is used to issue online alarms when an anomaly is detected.

[0025] The present invention has achieved the following beneficial effects:

[0026] This invention designs an online monitoring system for the exhaust pipes of deodorization devices in wastewater treatment plants. It features high integration and strong adaptability, capable of adapting to various ventilation modes and process configurations, solving the problems of difficult sampling point selection and unreasonable deployment in traditional monitoring methods. The system provides a complete technical path, from sampling point modification to sensor installation and data acquisition and transmission, exhibiting good standardization and replicability, facilitating its application in wastewater treatment plants of different types and sizes. Compared to traditional methods relying on manual sampling and analysis by professionals, this invention achieves automatic data acquisition and remote transmission, reducing operation and maintenance costs and enhancing user-friendliness. Furthermore, the system can acquire greenhouse gas emission data from key emission units in real time, supporting carbon emission accounting and management decisions, filling the gap in existing technologies for engineering-based continuous monitoring and data analysis.

[0027] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0028] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is a schematic diagram of the online greenhouse gas monitoring method in an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the online greenhouse gas monitoring system in an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the pipe opening modification in an embodiment of the present invention. Detailed Implementation

[0033] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0034] Example 1:

[0035] This invention provides an online greenhouse gas monitoring method, such as... Figures 1 to 2 As shown, it includes:

[0036] Continuous greenhouse gas monitoring is conducted using greenhouse gas analyzers at multiple optimized sampling points within the wastewater treatment plant.

[0037] When an anomaly is detected, an online alarm will be triggered;

[0038] The steps for optimizing the design of each sampling point include:

[0039] Sampling ports were set up in a stable pipe section between the deodorization unit and the discharge outlet / chimney outlet in the wastewater treatment plant, and these sections were used as sampling points.

[0040] If different process sections within a wastewater treatment plant have independent deodorization units, sampling points should be set up for each process section; if there are multiple parallel deodorization units in the same process section, one of them should be selected as a sampling point.

[0041] This embodiment combines advanced greenhouse gas analysis technology with the practical application needs of wastewater treatment plants. Gas sampling points are deployed at multiple key locations within the wastewater treatment plant, and specially designed analyzers are used for real-time monitoring. These analyzers can accurately detect common greenhouse gases (such as carbon dioxide, methane, and nitrous oxide) and also have high-frequency sampling capabilities, ensuring data representativeness across different time periods. Monitoring data is uploaded to the central control system in real-time via a wireless network. Once a gas concentration exceeds a preset threshold, the system immediately alarms, prompting relevant personnel to intervene.

[0042] This technology enables wastewater treatment plants to achieve 24 / 7, comprehensive monitoring of greenhouse gases. Through this online monitoring, abnormal emissions can be detected promptly, providing data support for optimizing emission control measures, thereby effectively reducing greenhouse gas emissions and achieving more efficient environmental protection goals.

[0043] Based on the actual conditions of the wastewater treatment plant, sampling ports should be set up in a stable pipe section between the deodorization unit and the discharge outlet / chimney outlet. Specific locations can be found in the "Technical Specification for Continuous Monitoring of Flue Gas (SO2, NOx, Particulate Matter) Emissions from Stationary Sources" (HJ75-2017). If different process sections have independent deodorization units, monitoring points should be set up for each process section; if the same process section has multiple parallel deodorization units, one monitoring point can be selected as a representative.

[0044] like Figure 3 As shown, the range adaptability of the online greenhouse gas and flow meter monitoring equipment is verified. If necessary, the pipe openings are modified or their positions adjusted to ensure the representativeness of the monitoring data. It is worth noting that if the positive pressure exhaust pipe of the deodorization device is used as the primary target for opening modification, the stability and sealing of the sampling process can be effectively guaranteed; in contrast, negative pressure areas are more prone to gas leakage due to poor sealing, thus affecting the accuracy of greenhouse gas concentration monitoring results.

[0045] The layout of sampling points not only considers geographical location and equipment accessibility, but is also optimized based on factors such as airflow dynamics and gas diffusion patterns. For example, sampling points are selected between the deodorization unit and the emission outlet to ensure that representative gas samples can be collected; if the process section contains multiple deodorization units, each unit should have at least one sampling point for independent monitoring.

[0046] Optimized sampling point design not only improves the accuracy and comprehensiveness of monitoring data but also effectively avoids data deviations caused by airflow changes or equipment malfunctions. Furthermore, a reasonable sampling point layout helps reduce equipment maintenance costs and improves system stability and reliability.

[0047] Example 2:

[0048] In this embodiment of the invention, the greenhouse gas analyzer is connected to an anti-interference wire and a gas sampling pipeline, and is placed in a safety protection box. Its flow meter is installed at the sampling port and is powered through the safety protection box.

[0049] The safety protection box and flow meter are covered with rainproof covers, and the safety protection box is raised.

[0050] The safety enclosure is equipped with an air conditioner and a thermometer and hygrometer, and is also equipped with a dryer to dry the greenhouse gases from the sampling line that will enter the analyzer;

[0051] The safety enclosure is equipped with a backup power supply and data storage devices, which are connected to the greenhouse gas analyzer.

[0052] By housing monitoring equipment such as greenhouse gas analyzers and flow meters in specialized protective enclosures, and equipping them with environmental control facilities including air conditioning, thermometers, hygrometers, and dryers, the system ensures stable operation under various conditions. To address the possibility of power outages, the system is also equipped with a backup power supply to ensure continued operation in the event of a power failure. Simultaneously, data storage devices are used to store monitoring data for extended periods for subsequent analysis.

[0053] By optimizing the equipment's environmental control, the stability and data accuracy of the equipment were significantly improved, and monitoring errors caused by environmental fluctuations were reduced. Especially when environmental factors such as temperature and humidity affect equipment operation, the equipment can be ensured to operate stably for extended periods, thereby improving the reliability of monitoring results.

[0054] Example 3:

[0055] In this embodiment of the invention, when continuous greenhouse gas monitoring is carried out using greenhouse gas analyzers at multiple sampling points optimized within a wastewater treatment plant, monitoring is conducted in a timely manner while ensuring that the detection data is representative of the annual climate.

[0056] To ensure the climatic representativeness of the monitoring data, this embodiment specifies seasonal monitoring under different climatic conditions. Specifically, greenhouse gas monitoring should cover all four seasons, and the number of monitoring days for each quarter should be planned based on weather forecast data issued by the meteorological bureau. The number of monitoring days for each quarter should be flexibly adjusted according to changes in climatic characteristics to ensure that the monitoring data can cover climate fluctuations in different seasons.

[0057] This seasonal monitoring design ensures the comprehensiveness and representativeness of the data, effectively reflecting the greenhouse gas emission patterns of wastewater treatment plants under different seasons and weather conditions. This not only helps to more accurately assess the carbon emissions of wastewater treatment plants but also provides data support for subsequent emission reduction policies.

[0058] Example 4:

[0059] In this embodiment of the invention, when an abnormality is detected and an online alarm is triggered, the alarm notifies the monitoring personnel.

[0060] The greenhouse gas monitoring system in this embodiment is equipped with a highly sensitive alarm function. Once the system detects that the concentration of a gas exceeds the standard or exhibits abnormal fluctuations, it will immediately send an alarm signal via wireless network to notify monitoring personnel. The alarm information includes not only the type and concentration of the gas exceeding the standard, but also provides possible cause analysis to aid in troubleshooting.

[0061] This real-time alarm function significantly improves the efficiency of responding to sudden emission anomalies. By receiving timely alerts, staff can intervene quickly to prevent excessive greenhouse gas emissions. An effective alarm mechanism helps reduce the emission risks caused by human negligence and also improves the management efficiency of wastewater treatment plants.

[0062] Example 5:

[0063] In this embodiment of the invention, the online greenhouse gas monitoring method further includes:

[0064] The monitoring data from continuous greenhouse gas monitoring using greenhouse gas analyzers at multiple optimized sampling points within the wastewater treatment plant will be uploaded to a cloud database in real time.

[0065] The data uploaded to the cloud database is validated and outliers are removed at preset event intervals.

[0066] The greenhouse gas analyzer collects data in real time, which is then transmitted to a cloud database. During data transmission, the system performs preliminary verification and analysis, automatically removing outliers and erroneous data. At preset time intervals, the system performs a data verification to ensure the quality of the uploaded data.

[0067] Real-time data transmission and outlier removal mechanisms ensure data accuracy and integrity, preventing inaccurate data caused by sampling errors or equipment problems from affecting the final carbon emission analysis results. At the same time, ensuring data quality provides a reliable basis for subsequent carbon emission accounting and decision-making.

[0068] Example 6:

[0069] In this embodiment of the invention, when continuous greenhouse gas monitoring is carried out using greenhouse gas analyzers at multiple sampling points optimized within a wastewater treatment plant, monitoring is suspended in the event of extreme weather.

[0070] In extreme weather conditions such as typhoons and torrential rains, the monitoring system will automatically suspend operation based on weather warnings and restart after the weather stabilizes. This function can prevent equipment from being damaged in severe weather and avoid data anomalies caused by drastic changes in environmental conditions.

[0071] By automatically pausing monitoring, equipment malfunctions under extreme weather conditions are prevented, ensuring the long-term stability of the equipment and data. Furthermore, pausing monitoring also avoids the generation of erroneous data during extreme weather, guaranteeing data accuracy.

[0072] Example 7:

[0073] In this embodiment of the invention, the cloud database also stores the environmental parameters and equipment malfunctions obtained by the greenhouse gas analyzers at each sampling point through operation and maintenance.

[0074] This embodiment utilizes a cloud database to store and manage all monitoring data, equipment status, environmental parameters, etc. In the cloud system, monitoring data, equipment malfunctions, maintenance records, and other information are automatically recorded for easy review and analysis later.

[0075] The use of cloud-based databases makes data storage and equipment management more efficient, improving data security and simplifying equipment maintenance processes. Real-time monitoring of equipment operation allows for early warnings before malfunctions occur, minimizing equipment downtime and ensuring the efficient operation of the monitoring system.

[0076] Example 8:

[0077] In this embodiment of the invention, based on monitoring data obtained from continuous greenhouse gas monitoring using greenhouse gas analyzers at multiple sampling points optimized within the wastewater treatment plant, decision support is provided for the accounting, assessment, and emission reduction management of carbon emissions from the wastewater treatment plant.

[0078] After processing, the monitoring data will be used for carbon emission accounting at wastewater treatment plants. Through accurate assessment of greenhouse gas emissions, management can formulate relevant emission reduction measures based on the data results. The system can also generate analytical reports based on emission data, providing data support for policy making.

[0079] This embodiment provides accurate greenhouse gas data to help wastewater treatment plants achieve scientific carbon emission accounting and management. By supporting decision-making, reducing emissions, and improving resource utilization efficiency, it helps achieve emission reduction targets and ultimately promotes continuous environmental improvement in wastewater treatment plants.

[0080] Example 9:

[0081] This invention provides an online greenhouse gas monitoring system, comprising:

[0082] The monitoring module is used for continuous greenhouse gas monitoring through greenhouse gas analyzers at multiple sampling points optimized within the wastewater treatment plant;

[0083] The alarm module is used to issue online alarms when an anomaly is detected.

[0084] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A method for online monitoring of greenhouse gases, characterized in that, include: Continuous greenhouse gas monitoring is conducted using greenhouse gas analyzers at multiple optimized sampling points within the wastewater treatment plant. When an anomaly is detected, an online alarm will be triggered.

2. The online greenhouse gas monitoring method as described in claim 1, characterized in that, The steps for optimizing the design of each sampling point include: Sampling ports were set up in a stable pipe section between the deodorization unit and the discharge outlet / chimney outlet in the wastewater treatment plant, and these sections were used as sampling points. If different process sections within a wastewater treatment plant have independent deodorization units, sampling points should be set up for each process section; if there are multiple parallel deodorization units in the same process section, one of them should be selected as a sampling point.

3. The online greenhouse gas monitoring method as described in claim 1, characterized in that, The greenhouse gas analyzer is connected to anti-interference wires and gas sampling pipelines and placed in a safety protection box. Its flow meter is installed at the sampling port and is powered through the safety protection box. The safety protection box and flow meter are covered with rainproof covers, and the safety protection box is raised. The safety enclosure is equipped with an air conditioner and a thermometer and hygrometer, and is also equipped with a dryer to dry the greenhouse gases from the sampling line that will enter the analyzer; The safety enclosure is equipped with a backup power supply and data storage devices, which are connected to the greenhouse gas analyzer.

4. The online greenhouse gas monitoring method as described in claim 1, characterized in that, When conducting continuous greenhouse gas monitoring using greenhouse gas analyzers at multiple optimized sampling points within a wastewater treatment plant, monitoring should be carried out in a timely manner while ensuring that the detection data is representative of the annual climate.

5. The online greenhouse gas monitoring method as described in claim 1, characterized in that, When an anomaly is detected, an online alarm will be triggered, and the alarm will notify the monitoring personnel.

6. The online greenhouse gas monitoring method as described in claim 1, characterized in that, Also includes: The monitoring data from continuous greenhouse gas monitoring using greenhouse gas analyzers at multiple optimized sampling points within the wastewater treatment plant will be uploaded to a cloud database in real time. The data uploaded to the cloud database is validated and outliers are removed at preset event intervals.

7. The online greenhouse gas monitoring method as described in claim 1, characterized in that, When conducting continuous greenhouse gas monitoring using greenhouse gas analyzers at multiple optimized sampling points within a wastewater treatment plant, monitoring should be suspended during extreme weather conditions.

8. The online greenhouse gas monitoring method as described in claim 6, characterized in that, The cloud database also stores environmental parameters and equipment malfunctions obtained from the greenhouse gas analyzers at each sampling point through operation and maintenance.

9. The online greenhouse gas monitoring method as described in claim 1, characterized in that, Based on monitoring data from continuous greenhouse gas monitoring using greenhouse gas analyzers at multiple optimized sampling points within the wastewater treatment plant, decision support is provided for the accounting, assessment, and emission reduction management of carbon emissions from the wastewater treatment plant.

10. An online greenhouse gas monitoring system, characterized in that, include: The monitoring module is used for continuous greenhouse gas monitoring through greenhouse gas analyzers at multiple sampling points optimized within the wastewater treatment plant; The alarm module is used to issue online alarms when an anomaly is detected.

Images