Integration of Innovative Waste Management Systems for Sustainable Development in Khun Thale: The SDG Station Model

Abstract

Waste management in Khun Thale Subdistrict faces significant challenges, with inefficient sorting systems leading to missed resource recovery opportunities. This study employed Human-Centered Design methodology to develop and implement innovative waste management solutions through the "SDG Station" project. Waste composition analysis revealed that paper waste (38%), plastic (30%), and organic waste (17%) were the primary components in general areas, whereas flea market waste consisted predominantly of organic matter (73%). The project implemented multiple interconnected systems: a recycling incentive program ("Trash Lucky") that collected 3,434 kg of recyclable materials across three phases; an organic waste processing system that produced 2,052 cubic meters of biogas from 42,634 kg of organic waste; and vermicomposting that generated 485 kg of soil conditioner from 56 kg of waste. Innovative applications included biogas pipeline delivery to food vendors, which reduced cooking costs and created economic benefits for students through mandated food price reductions. Integrating agrivoltaic farming systems enhanced resource utilization through the "Farm to Table" concept. Overall, the project achieved significant greenhouse gas reductions, totaling 23,976.11 kg CO₂eq, and demonstrated alignment with 11 of the Sustainable Development Goals. The implemented waste bank model offers valuable policy frameworks for scaling sustainable waste management practices throughout Thailand.