Household waste, as an inevitable result of daily activities, has attracted increasing attention, especially as it affects sustainable development. It is important to study the household waste separation behavior of individuals. Based on the theory of planned behavior, an extended theoretical model is constructed that considers perception of the outcomes in household waste separation to better illustrate individual behavior in waste separation. A comprehensive analysis is performed to explore the dynamic spread of pro-environmental and household waste separation information by conducting empirical research from 259 online questionnaires and a simulation of the evolution of household waste separation behavior in social networks. The dynamic spread of pro-environmental and household waste separation information influences the intention to sort waste, which determines waste sorting behavior. An analysis of the questionnaire data shows that considering others’ advice and perception of the behavioral outcomes has a significant influence on the intention to separate waste. Moreover, the impact of media publicity on the individual intention to sort waste is negative, indicating a need to improve the quality of propaganda. The simulation findings also advocate for enhancing the connection of people in the network, making policies that set appropriate penalties and increasing personal repayment by emphasizing three parameters: the information interaction threshold value, penalty-promoting parameter, and personal motivation parameter. Our study enhances the understanding of the evolutionary process of household solid waste separation behavior and provides several suggestions for improving existing policies, and this study can serve as a valuable reference for waste management in social networks.

作为日常活动的必然结果，家庭废物引起了越来越多的关注，特别是因为它影响了可持续发展。研究个人的生活垃圾分类行为很重要。基于计划行为的理论，构建了扩展的理论模型，该模型考虑了对家庭垃圾分类结果的感知，以更好地说明垃圾分类中的个体行为。通过对259份在线调查问卷进行实证研究并模拟社交网络中家庭废物分类行为的演变，进行了全面分析，以探索环保和家庭废物分类信息的动态传播。环保和家庭垃圾分类信息的动态传播会影响垃圾分类的意图，这决定了废物分类行为。对问卷数据的分析表明，考虑其他人的建议和对行为结果的认识对废物分类的意图有重大影响。此外，媒体宣传对个人分类垃圾的意图的影响是负面的，表明需要提高宣传质量。模拟结果还提倡通过强调以下三个参数来增强网络中人们的联系，制定适当的惩罚措施并提高个人还款率：信息交互阈值，惩罚提升参数和个人动机参数。