Effects of trash box design on solid waste segregation behavior in university of the philippines diliman

Abstract

Despite the presence of segregation bins, the solid wastes collected by maintenance personnel in UP Diliman are still unsorted. Because of this, this study was conducted to determine if the trash box design will greatly affect the decision of the waste generators to segregate. It also aims to assess the condition of solid waste segregation and to propose improvements on the existing solid waste segregation schemes. This is done by selecting four buildings in UP with different trash bin design, namely, the Melchor Hall, Benitez Hall, Palma Hall Annex, and Alonso Hall. Waste characterization and survey were conducted in the selected buildings and findings show that the segregation is not that efficient with waste characterization results of 64.17% and survey results of 53.15%. Majority of the students responded that they are segregating; however, the waste sorting survey results show that they are confused in classifying the wastes. The reasons for not segregating can be classified into four major factors: time, trash bin design and appearance, environment, and behaviour towards segregation. Majority of the students responded that their decision to segregate is affected by the trash bin design. Respondents preferred multi-colored trash bins with waste classification and pictures as label on the face of the bin. The proposed trash bins have four classifications consistent with the guidelines regarding the solid waste management in UP Diliman. An affirmative instruction was also posted to encourage the waste source to segregate. It is further suggested that a specific color should be fixed for each type of waste for easy identification. However, no matter how colorful or detailed the design is, it will only be effective with strict compliance of its implementation and monitoring. The education of students and staff regarding the classification of wastes should also be taken into account.