Research on the Reduction of Municipal Solid Waste based on System Dynamics:Taking Hefei City as a Case
Garbage classification and resource utilization is a systematic project that requires concerted efforts,precise policies,and long-term efforts.The system dynamics model of mu-nicipal solid waste(MSW)generation in Hefei was constructed using system dynamics,and the simulation and prediction of MSW generation in Hefei from 2022 to 2030 were carried out using VENSIM software.The results showed that the MSW generation in Hefei showed a long-term growth trend and would reach 2,448,800 tons by 2030.In order to realize the reduc-tion of MSW,simulation tests were carried out by separately and simultaneously introducing waste disposal fee charges,residents'willingness to classify waste,and waste recycling prices into the regulation scheme,and the results showed that the integrated regulation scheme of simultaneously increasing waste disposal fee charges,residents'willingness to classify waste,and waste recycling prices could minimize the amount of domestic waste generated,and it was the most effective regulation scheme.Based on the conclusions of the study,three aspects of countermeasures are proposed:to promote the effective implementation of the domestic garbage charging system and refine the incentives and penalties for garbage classification and place-ment;to strengthen the management training on the main body of the collection and transpor-tation of renewable resources in the recycling market and to regulate the price of renewable re-source recycling;and to establish a government-led,multi-party participatory mechanism to give full play to the role of all the main parties.
system dynamics modelmunicipal solid waste(MSW)reductionVENSIM soft-wareHefei city