Hazardous waste management method, system and program product

Abstract

The invention provides a hazardous waste management method and system and a program product, and the method comprises the steps: receiving an external request and executing a corresponding action, if the external request is a warehousing request, judging whether the warehousing is one-by-one code scanning warehousing or whole vehicle unified warehousing, and if the warehousing is one-by-one code scanning warehousing, scanning a two-dimensional code of hazardous waste; if the whole vehicles are uniformly put in storage, inputting vehicle contact order information, and scanning two-dimensional codes of the whole vehicles; the dangerous waste or the whole vehicle is automatically weighed, and a warehousing ledger is automatically updated; if the external request is an ex-warehouse request, whether ex-warehouse is performed through code scanning one by one or complete vehicle unified ex-warehouse is judged, and if ex-warehouse is performed through code scanning one by one, the two-dimensional code of the hazardous waste is scanned; if the whole vehicle is delivered out of the warehouse in a unified manner, inputting vehicle contact order information, and scanning a two-dimensional code of the whole vehicle; and the dangerous waste or the whole vehicle is automatically weighed, and the warehousing ledger is automatically updated. According to the method and the system, the technical problems of low efficiency and high error rate of a dangerous waste management mode are solved, so that the management of the dangerous waste is distinguished, and the management of the dangerous waste is intelligent and refined.

Description

Technical Field

[0001] The present invention relates to the technical field of hazardous waste management, and in particular to a hazardous waste management method, system and program product. Background Art

[0002] Currently, some companies struggle to automatically differentiate between individual pieces and entire truckloads of hazardous waste. Weight data is often manually recorded and recorded piece by piece, and the subsequent coding process uses a separate device, independent of the weighing process. This is cumbersome and error-prone. Data management often relies on manual recording of incoming and outgoing information, labeling, and manual entry of ledgers. These methods are not only inefficient but also prone to errors, making it difficult to achieve comprehensive, information-based traceability throughout the entire process. This lack of automated data collection and aggregation mechanisms prevents real-time data updates, making it difficult to meet companies' needs for efficient hazardous waste management. Summary of the Invention

[0003] Based on the above problems, the present invention proposes a hazardous waste management method, which solves the technical problems in the existing technology of low efficiency, easy errors and difficulty in meeting regulatory requirements of hazardous waste management methods, differentiates the management of hazardous waste, and makes the management of hazardous waste diversified, intelligent and refined.

[0004] The present invention provides a hazardous waste management method, comprising:

[0005] Receive external requests and execute corresponding actions. If the external request is for warehousing, determine whether to scan the code for each item or for the entire vehicle. If it is for each item, scan the QR code of the hazardous waste; if it is for the entire vehicle, enter the vehicle bill information and scan the QR code of the entire vehicle; automatically weigh the hazardous waste or the entire vehicle, perform the warehousing operation, and automatically update the warehousing ledger;

[0006] If the external request is a warehouse outbound request, determine whether it is to scan the code for each piece or to ship out the entire vehicle at once. If it is to scan the code for each piece, scan the QR code of the hazardous waste; if it is to ship out the entire vehicle at once, enter the vehicle bill information and scan the QR code of the entire vehicle; automatically weigh the hazardous waste or the entire vehicle, perform the warehouse outbound operation, and automatically update the warehouse receipt ledger.

[0007] In addition, if the external request is to fill in a joint form, the annual management plan will be queried, and a transfer plan will be generated based on the annual management plan, and a transport unit dispatch joint form will be automatically generated. The transfer plan content includes: estimated transfer volume and transport unit information.

[0008] In addition, if the external request is for a query of the waste-producing enterprise ledger, the inventory ledger will be queried based on the date input externally, and the query information will be displayed after the query. The inventory types in the inventory ledger include: one-time inventory, secondary inventory and joint receipt inventory. The query categories of the inventory ledger include: hazardous waste category, hazardous waste code and ledger time.

[0009] In addition, the method also includes: if the storage time of hazardous waste exceeds a preset number of days, the weight exceeds a preset weight, or the capacity exceeds a preset capacity, an early warning is issued and a prompt is given to external personnel, and the prompt method includes: SMS, email and / or system pop-up window.

[0010] In addition, the method further includes: if it is detected that the weighing value of a piece of hazardous waste is modified multiple times within a preset time period, marking the hazardous waste and generating an early warning report.

[0011] In addition, when the hazardous waste is generated, the QR code of the hazardous waste triggers the QR code generating device to print the QR code label and then triggers the packaging device to print the QR code label on the packaging of the hazardous waste.

[0012] In addition, when weighing hazardous waste, a scale is used to weigh the hazardous waste or a laser sensor is used to measure the volume of the hazardous waste, and the weight of the hazardous waste is calculated based on the density of the hazardous waste.

[0013] The present invention further provides a hazardous waste management system using any of the hazardous waste management methods described above, comprising:

[0014] Servers and external devices connected to the servers;

[0015] External devices include: touch screen, data communication module, scale, printer, sensor and barcode scanner.

[0016] In addition, the external devices are integrated inside the all-steel housing.

[0017] The present invention also provides a computer program product, comprising a computer program / instruction, which, when executed by a processor, implements the hazardous waste management method as described in any one of the above items.

[0018] The present invention solves the technical problems in the existing technology of low efficiency, easy error and difficulty in meeting regulatory requirements in hazardous waste management, differentiates the management of hazardous waste, and makes the management of hazardous waste diversified, intelligent and refined. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A flowchart of a hazardous waste management method provided by one embodiment of the present invention. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below with reference to specific embodiments and accompanying drawings, which are intended only to elaborate on the specific embodiments of the present invention and do not impose any limitation on the present invention. The scope of protection of the present invention shall be subject to the claims.

[0021] Reference Figure 1 The present invention proposes a hazardous waste management method, comprising:

[0022] Step S001: Receive an external request and execute the corresponding action. If the external request is for warehousing, determine whether to scan the code for each item or for the entire vehicle. If it is for scanning the code for each item, scan the QR code of the hazardous waste; if it is for the entire vehicle, enter the vehicle bill information and scan the QR code of the entire vehicle; automatically weigh the hazardous waste or the entire vehicle, perform the warehousing operation, and automatically update the warehousing ledger;

[0023] Step S002: If the external request is a warehouse outbound request, determine whether it is a piece-by-piece scan-code outbound or a whole vehicle outbound. If it is a piece-by-piece scan-code outbound, scan the QR code of the hazardous waste; if it is a whole vehicle outbound, enter the vehicle bill information and scan the QR code of the whole vehicle; automatically weigh the hazardous waste or the whole vehicle, perform the warehouse outbound operation, and automatically update the warehouse receipt ledger.

[0024] With the increasing emphasis on environmental protection, hazardous waste management requirements are becoming increasingly stringent. Traditional hazardous waste management models suffer from inefficiencies, poor data accuracy, and traceability difficulties, making them difficult to meet the management needs and regulatory requirements of modern enterprises.

[0025] The traditional hazardous waste management model has many insurmountable shortcomings that hinder efficient operations and compliance development of enterprises. These shortcomings are mainly reflected in the following five aspects:

[0026] First, inefficiency. Every step in hazardous waste management, including weighing, labeling, and record-keeping, relies on manual labor. Administrators must manually record incoming and outgoing information, which is labor-intensive and time-consuming. Furthermore, the repetitive and mechanical nature of manual operations increases the probability of recording errors, requiring more time to identify and correct them, further reducing work efficiency.

[0027] Second, data accuracy is difficult to guarantee. Manual operations increase the probability of error, and inaccurate weight recording leads to data bias. Missing information also impacts the accuracy of hazardous waste management and the reliability of data for corporate decision-making.

[0028] Third, traceability is difficult. Traditional hazardous waste management lacks information-based traceability tools, making it impossible to effectively track the entire process of hazardous waste generation, transportation, storage, and transfer. When problems arise, companies struggle to quickly and accurately trace the problem to the correct link and identify the responsible party in a timely manner, hindering their risk management and accountability.

[0029] Fourth, there is a lack of a risk early warning mechanism. Enterprises cannot monitor hazardous waste information in real time, making it difficult to detect abnormal situations in a timely manner and take preventive measures in advance. This increases environmental risks and poses potential threats to enterprises and society.

[0030] Fifth, data exchange is poor. Internal enterprise data and external regulatory data cannot interact in real time, making it difficult for enterprises to grasp policy developments and regulatory changes in a timely manner, potentially leading to non-compliance. Regulatory authorities are unable to obtain enterprises' hazardous waste management data in a timely manner, making it difficult to effectively supervise enterprises. This impacts the efficiency and quality of regulatory work and is detrimental to the standardized development of the entire hazardous waste management industry.

[0031] The present invention aims to solve the problems of low efficiency, poor data accuracy, traceability difficulties, lack of risk warning and poor data interaction in the traditional hazardous waste management model, realize the automation, informatization and intelligence of hazardous waste management, improve the management level of hazardous waste by enterprises, and reduce environmental risks.

[0032] The present invention integrates functions such as intelligent weighing, automatic label printing, and automatic management of warehousing records to achieve automated management of the entire process from generation to transfer of hazardous waste, improve data accuracy and label standardization, and ensure the real-time and accuracy of data.

[0033] In step S001, an external request is received and the corresponding action is executed. If the external request is a warehousing request, it is determined whether the hazardous waste is to be warehousing piece by piece or a whole vehicle. If the hazardous waste is to be warehousing piece by piece, the QR code of the hazardous waste is scanned; if the whole vehicle is to be warehousing, the vehicle bill information is entered and the QR code of the whole vehicle is scanned. The hazardous waste or the whole vehicle is automatically weighed, the warehousing operation is carried out, and the warehousing ledger is automatically updated.

[0034] When hazardous waste is ready to be put into storage: When hazardous waste is generated, the waste-producing enterprise selects the waste type and weighs it through the all-in-one machine, automatically collects data, generates a storage ledger and prints a label. The label contains key information about the waste and a QR code of the hazardous waste for easy traceability.

[0035] When receiving hazardous waste: Businesses can choose to scan and store hazardous waste piece by piece or as a whole truckload. For piece-by-piece storage, scan the QR code on the hazardous waste label, select a storage facility, and confirm receipt. For truckload storage, confirm the vehicle document information and select a storage facility. Upon receipt, the hazardous waste is automatically weighed and verified before acceptance. Automatic updates to the storage ledger reduce manual intervention.

[0036] Step S002: If the external request is a warehouse outbound request, determine whether it is a piece-by-piece scan-code outbound or a whole vehicle outbound. If it is a piece-by-piece scan-code outbound, scan the QR code of the hazardous waste; if it is a whole vehicle outbound, enter the vehicle bill information and scan the QR code of the whole vehicle; automatically weigh the hazardous waste or the whole vehicle, perform the warehouse outbound operation, and automatically update the warehouse receipt ledger.

[0037] When hazardous waste is shipped out of the warehouse, the QR code must also be scanned. If the entire truck is shipped out, the vehicle document information must be verified to ensure the consistency of the incoming and outgoing information. Automatic weighing of hazardous waste or the entire truck ensures that the incoming and outgoing hazardous waste are consistent, and the outgoing operation is carried out, and the incoming ledger is automatically updated. This automatic update of the incoming ledger ensures clear accounting.

[0038] Alternatively, when disposing of hazardous waste, waste-generating or operating enterprises can scan the QR code on the hazardous waste label to select the waste to be shipped, or use the filter function to ship out in batches. After confirming the hazardous waste to be shipped, they can fill in information such as the disposal facility and the person in charge to complete the shipment and update the inventory and ledger.

[0039] Shipment Confirmation (Waste Generators): After receiving a shipment order from a transporter, waste generators select the shipment order and scan the QR code of the hazardous waste inventory to confirm the actual shipment quantity. A reweighing function is provided to ensure accurate weights. New labels are printed for the hazardous waste, and shipment confirmation is completed and reported to the national platform.

[0040] This invention addresses the pain points of traditional management methods, such as low efficiency, prone to errors, and difficulty in meeting regulatory requirements, and realizes the automation, informatization, and intelligentization of hazardous waste management. The present invention aims to achieve the following goals:

[0041] (1) Realize the automated management of the entire hazardous waste process, including weighing, label printing, warehousing, outbound delivery, and joint document management, to improve work efficiency and reduce manual operation errors.

[0042] (2) Establish accurate and real-time inventory records to meet the requirements of the new Solid Waste Law and related standards for standardized records, and ensure that the records are consistent with the actual situation.

[0043] (3) Realize information-based tracing of the entire process, conduct real-time monitoring of the generation, transportation, storage, and disposal of hazardous waste, clarify the responsibilities of each link, and facilitate supervision and problem tracing.

[0044] (4) It has a risk warning function that can detect abnormal hazardous waste information in a timely manner, avoid potential risks, and prevent excessive storage.

[0045] (5) Seamless connection with the provincial solid waste management information platform enables real-time data sharing and meets environmental protection supervision requirements.

[0046] The present invention solves the technical problems in the existing technology of low efficiency, easy error and difficulty in meeting regulatory requirements in hazardous waste management, differentiates the management of hazardous waste, and makes the management of hazardous waste diversified, intelligent and refined.

[0047] In one embodiment, if the external request is for filling out a joint form, the annual management plan is queried, and a transfer plan is generated based on the annual management plan, and then a transport unit dispatch joint form is automatically generated. The content of the transfer plan includes: estimated transfer volume and transport unit information.

[0048] Filling out the joint form (waste-generating enterprises): Waste-generating enterprises select a transfer plan based on the annual management plan, fill out the estimated transfer volume, select a transport unit, confirm the transfer information and report it to the national platform, complete the joint form, and contact the transport unit to dispatch the joint form.

[0049] Optionally, the joint form management (waste-producing enterprises) conducts unified management of the filled-in and processed joint forms, and can query the joint form status, historical records and other information to facilitate enterprises to track the flow of joint forms.

[0050] In one embodiment, if the external request is for a query on the ledger of a waste-producing enterprise, the inventory ledger is queried based on the date input externally, and the query information is displayed after the query. The inventory types in the inventory ledger include: one-time inventory, secondary inventory, and receipt inventory with a joint form. The query categories of the inventory ledger include: hazardous waste category, hazardous waste code, and ledger time.

[0051] When waste-generating enterprises conduct ledger inquiries, they can query incoming records by day, week, or month, displaying detailed information about incoming hazardous waste. They can also query incoming records by label, scan QR codes to view basic hazardous waste information and flow status, and optionally, re-label hazardous waste.

[0052] Operating enterprise ledger inquiry: Similar to waste-producing enterprises, operating enterprises can inquire about different types of inventory ledgers, including primary inventory, secondary inventory, and inventory receipt with joint forms, to facilitate management and verification.

[0053] In one embodiment, the method further includes: if the storage time of hazardous waste exceeds a preset number of days, the weight exceeds a preset weight, or the capacity exceeds a preset capacity, an early warning is issued and a prompt is given to external personnel, and the prompt method includes: SMS, email and / or system pop-up window.

[0054] When the storage time of hazardous waste exceeds the preset number of days, the weight exceeds the preset weight, or the capacity exceeds the preset capacity, an early warning will be issued to prompt the management to deal with it in a timely manner.

[0055] Optionally, the early warning management function automatically identifies and warns of potential risks through real-time monitoring of all aspects of hazardous waste management, ensuring that companies can promptly respond to anomalies in hazardous waste management. This embodiment supports multiple types of warnings, including those for excessive hazardous waste generation, excessive storage, excessive interprovincial transfer, and overdue joint forms. Users can filter warning information based on multiple criteria, such as industry sector, company, and hazardous waste category, and receive real-time warning notifications via mobile devices or web browsers, ensuring timely and accurate problem resolution.

[0056] In addition, the early warning management function supports customizable warning rules and thresholds, allowing enterprises to flexibly adjust warning trigger conditions based on their needs. The system provides detailed warning records and statistics, supporting data analysis and export by time range, enterprise, and warning type, facilitating compliance audits and management optimization.

[0057] In one embodiment, the method further includes: if it is detected that the weight value of a piece of hazardous waste is modified multiple times within a preset time period, marking the hazardous waste and generating an early warning report.

[0058] If the weighing value of a piece of hazardous waste is modified multiple times during a preset time period, such as one hour or one day, it means that the weighing device has malfunctioned or uncontrollable external factors have occurred, and a timely warning is required.

[0059] In one embodiment, when the hazardous waste is generated, the QR code of the hazardous waste triggers a QR code generating device to print a QR code label, which then triggers a packaging device to print the QR code label on the packaging of the hazardous waste.

[0060] To simplify the operation, when hazardous waste is generated, the QR code generating device is triggered to print the QR code label, and then the packaging device is triggered to print the QR code label on the packaging of the hazardous waste. Alternatively, the QR code is printed on the label of the hazardous waste.

[0061] In one embodiment, when weighing hazardous waste, a scale is used to weigh the hazardous waste or a laser sensor is used to measure the volume of the hazardous waste, and the weight of the hazardous waste is calculated based on the density of the hazardous waste.

[0062] In different situations, the weight of hazardous waste can be obtained by direct weighing or indirect calculation to adapt to different occasions. For example, for irregular hazardous waste or large-volume hazardous waste, the weight calculation method can be adopted.

[0063] The present invention further provides a hazardous waste management system using any of the hazardous waste management methods described above, comprising:

[0064] Servers and external devices connected to the servers;

[0065] External devices include: touch screen, data communication module, scale, printer, sensor and barcode scanner.

[0066] The server can be deployed locally or in the cloud. Local deployment installs the system on the company's internal server and stores data locally. It is suitable for companies with high requirements for data security and privacy. Cloud deployment uses cloud service providers to provide computing and storage resources, and companies access the system through the network. It has the advantages of low cost and fast deployment.

[0067] The touch screen is used for managers to interact with the system.

[0068] The data communication module is used for data exchange between external devices and the server.

[0069] The weighing machine is used to weigh hazardous waste.

[0070] The printer is used to print QR codes and labels for hazardous waste.

[0071] The sensor is used to detect the volume of irregular hazardous waste.

[0072] The barcode scanner is used to scan QR codes.

[0073] Optionally, a high-precision weighing sensor (0-3 tons range, accuracy ≤1kg) combined with a dynamic calibration algorithm can eliminate interference from ambient temperature, vibration, and other factors on the weighing data. The weighing module supports automatic tare function to ensure the accuracy of the net weight data of hazardous waste.

[0074] The present invention solves the technical problems in the existing technology of low efficiency, easy error and difficulty in meeting regulatory requirements in hazardous waste management, differentiates the management of hazardous waste, and makes the management of hazardous waste diversified, intelligent and refined.

[0075] In one embodiment, the external device is integrated into the all-steel housing.

[0076] The external devices are integrated into an explosion-proof and corrosion-resistant all-steel housing to support deployment in harsh outdoor environments (meeting IP67 protection level).

[0077] Domestic information technology adaptation: Use domestic chips to ensure data security and independent control.

[0078] The present invention has the following beneficial effects:

[0079] (1) Intelligent terminal architecture with deep integration of hardware and software

[0080] Integrated equipment design: The weighing module, label printer, touch screen, and data communication module are integrated into an explosion-proof and corrosion-resistant all-steel housing, supporting deployment in harsh outdoor environments (IP67 protection grade).

[0081] Domestic trusted computing adaptation: Using domestic chips and trusted computing operating systems to ensure data security and independent control.

[0082] (2) Full-process automated management method for hazardous waste

[0083] The automated "Five-Immediate" standardized process (i.e., generation, packaging, weighing, coding, and storage) includes: Automatically triggering the weighing process upon hazardous waste generation, eliminating delays or errors caused by manual intervention. Label printing and hazardous waste packaging are completed simultaneously, ensuring a "one-item, one-code" binding.

[0084] (3) Blockchain-based data storage technology

[0085] Tamper-proof data chain: Key data on hazardous waste circulation (such as weighing value, operator, and timestamp) are encrypted through a hash algorithm and written into the blockchain to achieve data immutability and judicial-level evidence storage capabilities.

[0086] (4) Dynamic rights management and data security mechanism

[0087] Role-based authorization: System administrators, warehouse managers, supervisors and other roles have differentiated operating permissions (for example, warehouse managers can only modify data in this facility), and permission changes require multiple identity authentication (fingerprint + dynamic password).

[0088] End-to-end encrypted transmission: The national secret algorithm (SM4) is used to encrypt the transmitted data, combined with the TLS1.3 protocol to ensure the security of the communication link.

[0089] The present invention also provides a computer program product, comprising a computer program / instruction, which, when executed by a processor, implements the hazardous waste management method as described in any one of the above items.

[0090] The present invention solves the technical problems in the existing technology of low efficiency, easy error and difficulty in meeting regulatory requirements in hazardous waste management, differentiates the management of hazardous waste, and makes the management of hazardous waste diversified, intelligent and refined.

[0091] The present invention has the following beneficial effects:

[0092] (1) Integrated design of intelligent weighing and label printing

[0093] Precision Weighing Technology: Utilizes high-precision load cells (0-3 tons range, ≤1kg accuracy) combined with a dynamic calibration algorithm to eliminate interference from ambient temperature, vibration, and other factors that can affect weighing data. The weighing module supports automatic tare functionality to ensure the accuracy of net hazardous waste weight data.

[0094] Automatic generation and printing of QR code labels: The system dynamically generates unique QR code labels (compliant with ISO / IEC 18004 standards) based on key information such as hazardous waste type, generation time, and weight.

[0095] Data synchronization mechanism: Weighing data and label information are bound in real time through the local database and uploaded to the cloud server synchronously to avoid data loss or tampering.

[0096] (2) Full-process information traceability technology

[0097] QR code binding throughout the entire lifecycle: From hazardous waste generation to final disposal, status information is updated at every stage by scanning a QR code. For example, scanning a code during incoming warehousing links it to the storage facility, and scanning a code during outgoing warehousing links it to the transport document, forming a complete electronic circulation chain.

[0098] Operation log and responsibility tracing: The system automatically records the operator, timestamp and operation content (such as weighing value correction records) of each link, and supports multi-dimensional operation log queries by time, personnel, facilities, etc., facilitating responsibility tracing and compliance auditing.

[0099] (3) Multi-level data docking technology

[0100] Cross-platform data interface: Utilizing a RESTful API and JSON data format, the system seamlessly integrates with the State Energy Group's Zero Waste Group Intelligent Management and Control Platform and provincial solid waste management information platforms. The system supports two-way data synchronization, enabling real-time transmission of form status to the enterprise end and automatic issuance of regulatory instructions to terminal devices.

[0101] Compatibility with heterogeneous devices: Adapt to weighing equipment, scanners and other peripherals of different brands and models through standardized communication protocols (such as MQTT and Modbus), ensuring that old equipment can be quickly connected to the system.

[0102] (4) Dynamic risk warning algorithm

[0103] Intelligent threshold determination: When the threshold for hazardous waste storage exceeds or expires (such as storage time exceeds 90 days or weight exceeds 80% of the facility capacity) is preset, the system automatically triggers an early warning and pushes it to the responsible personnel through multiple channels such as SMS, email, and system pop-up windows.

[0104] Abnormal pattern recognition: Machine learning models are trained based on historical data to identify abnormal operations (such as multiple corrections to weighing values ​​in a short period of time), mark high-risk behaviors, and generate early warning reports.

[0105] The above description is only the principle and preferred embodiment of the present invention. It should be noted that for those skilled in the art, several other variations can be made based on the principle of the present invention, which should also be considered as the scope of protection of the present invention.

Claims

1. A hazardous waste management method, characterized in that: include: Receive external requests and execute corresponding actions. If the external request is for warehousing, determine whether to scan the code for each item or for the entire vehicle. If it is for each item, scan the QR code of the hazardous waste; if it is for the entire vehicle, enter the vehicle bill information and scan the QR code of the entire vehicle; automatically weigh the hazardous waste or the entire vehicle, perform the warehousing operation, and automatically update the warehousing ledger; If the external request is a warehouse outbound request, determine whether it is to scan the code for each piece or to ship out the entire vehicle at once. If it is to scan the code for each piece, scan the QR code of the hazardous waste; if it is to ship out the entire vehicle at once, enter the vehicle bill information and scan the QR code of the entire vehicle; automatically weigh the hazardous waste or the entire vehicle, perform the warehouse outbound operation, and automatically update the warehouse receipt ledger.

2. The hazardous waste management method according to claim 1, characterized in that: If the external request is a joint form, the annual management plan is queried, and a transfer plan is generated based on the annual management plan, and a transport unit dispatch joint form is automatically generated. The transfer plan includes: estimated transfer volume and transport unit information.

3. The hazardous waste management method according to claim 1, characterized in that: If the external request is for a query of the waste-producing enterprise ledger, the incoming ledger will be queried based on the date input externally. The query information will be displayed after the query. The incoming types in the incoming ledger include: one-time incoming, secondary incoming, and incoming with a joint form. The query categories of the incoming ledger include: hazardous waste category, hazardous waste code, and ledger time.

4. The hazardous waste management method according to claim 1, characterized in that: The method further includes: if the storage time of hazardous waste exceeds a preset number of days, the weight exceeds a preset weight, or the volume exceeds a preset volume, an early warning is issued and a prompt is given to external personnel, and the prompt method includes: SMS, email and / or system pop-up window.

5. The hazardous waste management method according to claim 1, characterized in that: The method further includes: if it is detected that the weight value of a piece of hazardous waste is modified multiple times within a preset time period, marking the hazardous waste and generating an early warning report.

6. The hazardous waste management method according to claim 1, characterized in that: When the hazardous waste is generated, the QR code of the hazardous waste triggers the QR code generating device to print the QR code label and then triggers the packaging device to print the QR code label on the packaging of the hazardous waste.

7. The hazardous waste management method according to claim 1, characterized in that: When weighing hazardous waste, a scale is used to weigh the hazardous waste or a laser sensor is used to measure the volume of the hazardous waste, and the weight of the hazardous waste is calculated based on the density of the hazardous waste.

8. A hazardous waste management system using the hazardous waste management method according to any one of claims 1 to 7, characterized in that: include: Servers and external devices connected to the servers; External devices include: touch screen, data communication module, scale, printer, sensor and barcode scanner.

9. The hazardous waste management system according to claim 8, characterized in that: The external equipment is integrated inside the all-steel housing.

10. A computer program product comprising a computer program / instructions, characterized in that When the computer program / instruction is executed by a processor, the hazardous waste management method according to any one of claims 1 to 7 is implemented.

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