Abstract
Hazardous waste landfill is the final way to dispose of hazardous waste and its environmental risk is different from that of domestic waste landfill. Its dangerous characteristics will not decrease with time, but will exist for a long. The environmental risks of hazardous waste landfills are concentrated in the probability risk of leakage of the impermeable layer. Therefore, it is of great significance to calculate the environmental risk of the leakage source intensity of typical hazardous waste landfills. In order to adapt to the personalized customer needs caused by social and economic development and to pursue new competitive advantages, the production mode of manufacturing enterprises is gradually changing to a small-batch and multi-variety customized mode. The complex and dynamic production environment caused by determinism puts forward higher requirements for the operation control accuracy of large-scale multiunit production systems. To support the efficient and coordinated operation of each link is a key challenge for process control of large-scale multiunit production logistics systems. This article proposes to accelerate the integration of information technology and manufacturing technology to promote the application of intelligent manufacturing process, intelligent logistics management, and other technologies in the production process. The research object is to study the multiunit linkage optimization problem under the framework of digital twin technology, through the real-time collaborative decision-making and feedback execution of the production, transportation, and warehousing multi-decision links to solve the “production-transportation-storage” decision-making in a dynamic environment. We analyzed the problems brought about by the dynamic interference of the execution process on the “production-transportation-storage” linkage operation process of the industrial park and analyzed the challenges of realizing the online linkage decision-making of “production-transportation-storage.” Based on the classic digital twin framework, a cross-unit digital twin linkage decision information architecture is proposed. Compared with the conclusions of the original environmental impact assessment report of the project, the post-environmental impact assessment results basically conform to the relevant descriptions, and a few nonconformities have been resolved during the project operation. The environmental protection measures of this project are relatively complete, which can meet various environmental protection requirements and enterprise development needs during the operation period of the project. For some environmental risks found in the process of project operation, evasion measures are proposed to reduce the possibility of environmental pollution accidents, and emergency measures can be taken in time when accidents occur. The practice of post-assessment of the environmental impact of this hazardous waste landfill is generally successful, and it has certain reference significance for the subsequent post-assessment of the environmental impact of other hazardous waste landfills.
Highlights
A visual virtual model of the hazardous waste landfill system was developed using 3D modeling technology, and the internal interaction mechanism of the digital twin model of the hazardous waste landfill system was studied. e virtual function blocks related to landfill capacity are designed, and the virtual function blocks with different functions are integrated into a virtual function block network
By constructing a reconfigurable digital twin model of the hazardous waste landfill system based on virtual function blocks, the control of task execution and the reconstruction of landfill capacity are realized. is article proposes an improved genetic annealing IGASA algorithm. e algorithm has strong solving ability and robust performance, which improves the accuracy of the algorithm. is article is oriented to the material network of hazardous waste landfills, comprehensively considers the distribution of transportation tasks and global path planning, adjusts the local path planning based on the time window method, and designs the intelligent material scheduling process
Aiming at the problems of insufficient interaction and difficulty of integration between the physical space and the information space of the hazardous waste landfill system, a digital twin model framework of the hazardous waste landfill system related to the landfill capacity is proposed
Summary
With the rapid development of the national economy, the amount of hazardous waste produced in the production of industrial enterprises has increased substantially [1]. Hazardous waste landfill is a land disposal measure. It consists of several waste disposal units and buildings. Since hazardous waste landfills involve many types of hazardous wastes and complex components, they have certain impacts on air quality, groundwater, surface water, biological activities, and human health in the surrounding environment. Research in this field has attracted more and more attention from environmental protection departments and all walks of life
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