Development of a Waste Management Model for Residents in the Area of Phibun Mangsahan Municipality, Ubon Ratchathani Province.

Abstract

     This mixed-method research aimed to: (1) investigate the factors influencing waste management behavior among residents in Phibun Mangsahan Municipality, Ubon Ratchathani Province; (2) develop a community-based waste management model; and (3) examine the effects of the developed model. The study was conducted in three phases. Phase 1 employed a cross-sectional analytical research design. The sample comprised 370 residents of Phibun Mangsahan Municipality. Data were collected using a researcher-developed questionnaire from April 9 to December 31, 2024. Multiple linear regression analysis was used to identify predictive factors influencing waste management behavior. Phase 2 involved participatory action research (PAR) to develop a community-based waste management model through two PAOR (Planning, Action, Observation, and Reflection) cycles, each consisting of four steps: planning, action, observation, and reflection. This phase lasted 16 weeks and involved 54 key stakeholders and community members. Data were analyzed through categorization and content analysis. Phase 3 utilized a quasi-experimental design to evaluate the effectiveness of the developed model. A sample of 30 residents participated in this phase. The paired t-test was used to compare mean differences in key variables before and after the intervention. The results revealed six significant factors influencing waste management behavior: family size, attitude toward waste management, perceived susceptibility to waste-related risks, perceived severity, perceived benefits of waste management, and perceived barriers. These factors collectively explained 74.1% of the variance in waste management behavior (R² = 0.741, adjusted R² = 0.737, F = 173.344, p < 0.001), with statistical significance at the 0.05 level. The developed waste management model, referred to as the DCSAM Model, comprised five components: Data and Resource Analysis, Community Engagement and Collaboration, Sustainable Waste Management Practices, Awareness Raising and Learning Enhancement, and Monitoring and Continuous Improvement. After the intervention, the experimental group showed statistically significant improvements (p < 0.05) in waste management knowledge, attitudes, perceived susceptibility and severity, perceived benefits and barriers, enabling and reinforcing factors, and actual waste management behavior. In conclusion, the DCSAM Model effectively enhanced the waste management capacity of residents in Phibun Mangsahan Municipality, achieving the intended objectives.