Developing a Framework to Inform Sustainable and Cost-effective Waste Management Approaches in Harare, Zimbabwe
摘要
In developing countries, municipal solid waste management causes significant environmental and economic challenges. In Zimbabwe, Harare exemplifies challenges caused by opaque costing systems, limited resources, and rising waste volumes. Therefore, this research develops a novel framework focusing on informing sustainable waste management and cost-effectiveness by guiding economic evaluation in Rydale Ridge Park within Harare. The study employs pragmatic research philosophy, case study design, and data was collected through questionnaires from 273 households and interviews were carried out with 23 key informants, including waste collectors, environmental officers, and municipal officials. Quantitative findings reveal that current cost evaluation methods are inconsistent. Households lack access to tools for effective cost tracking (mean = 2.11), and transparency in municipal costing is limited (mean = 3.43), leading to budgetary strain (mean = 4.13) and discouraging sustainable practices. Qualitative data shows that stakeholders rely on unsustainable waste collection as well as landfilling caused by inadequate services, recycling infrastructure, and informal waste pickers who are unintegrated. The developed framework addresses those concerns by advocating for the provision of incentives to support recycling, pilot programs for waste segregation, structured mechanisms for community feedback, carrying out financial audits regularly, and integrating technology for cost transparency. The study’s theoretical innovation consists of integrating stakeholder perspectives with economic evaluation methodologies (Cost-Benefit Analysis and Life Cycle Assessment) into a localized, practical model that connects policy with community-level implementation. The framework offers a scalable model for Harare and comparable urban environments to shift towards economically viable and environmentally sustainable waste management, in accordance with Sustainable Development Goal 11 for sustainable cities.