Pannapon Chotechatchawalkul creator Thammarat Koottatep Chairperson Visvanathan, C. Examination Committee Tatchai Pussayanavin Examination committee Government of Japan Scholarship Donor text series technical report th Pathum Thani, Thailand Asian Institute of Technology 2021 continuing eng 85 leaves : ill. AIT is an international higher education institute located in Pathum Thani, Thailand. Generally, AIT generated 23,000 kg of solid waste per month. Plastic wastes generated in AIT are around 6000 kg per month. Most of the wastes from AIT was managed by a department in AIT and a small portion of good plastic waste was managed by collaboration projects between AIT and private waste recycling organization. To divert the plastic wastes flow in AIT toward recycling activity, applying Lean management into AIT waste management was study in this research. Lean tools which are Value Stream Mapping (VSM), 7 wastes of Lean, Root cause analysis and Pokayoke were utilized in identifying problems and problems solving. The technology and process changes were proposed to AIT. The proposed changes are reducing number of bins in AIT, modifying the tricycle freight, adding recyclable sorting activity at AIT transfer station, adding cages for plastic recyclables, setting new waste collection schedule to include the recyclable from new cage, periodically promote recycling campaign, setting KPI to conduct annual assessment on waste collecting and recycling activity and relocation the existed bin in AIT based on the bin cover type. To visualize wastes in AIT, Material Flow Analysis of solid waste and plastic waste were created. The AIT current plastic recycling rate compare with plastic wastes is 1 %. The Lean management can increase plastic recycling rate to 5 %. AIT Waste management function have given feedbacks to the proposed Lean improvements. Despite AIT resistance to change waste management, AIT people have positive opinions in plastic waste recycling. They are willing to collaborate with new way of waste disposal that support waste recycling. The improvement of plastic waste in AIT with Lean management are involved both people change and process change. Lean People and Lean process are important factors lead to a long-term success of waste management. A research study submitted in partial fulfillment of the requirements for the degree of Master in Marine Plastics Abatement Research studies project report (M.) - Asian Institute of Technology, 2021 Waste Management Plastic scrap Thailand Asian Institute of Technology Solid waste management Thailand Asian Institute of Technology Solid waste Recycling (Waste, etc.) Study and teaching Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B15686 http://203.159.5.9/ait-thesis/detail.php?q=B15686 220131 20260817162914.0