The aim of this research was to study the solid waste management in Faculty of Science and Technology Rajamangala University of Technology Phra Nakhon study problems and obstacles of the solid waste management. The study will benefit related organizations as fundamental information for setting plans on the solid waste management to ensure the maximum efficiency and expand to other faculties. In this study a researcher collected quantitative data and also characteristics of solid waste occurred. Total amounts of solid waste were approximately 20.86 kilograms per day. Types of solid waste mostly found were reuse /recycle wastes (10.21 kilograms per day) and organic wastes (10.43 kilograms per day). The results showed an information for developing solid waste management under 3R processes (Reduce Reuse and Recycle) lead to sustainable solid waste management and efficiency.

This research was study the production of essential oil from tobacco leaves for insect repellents. To increase value and development of new products form tobacco leaves. This product is environmental friendly. In this research is divided into two parts: Laboratory scale and get a knowledge to the municipal in Nhongkhai province. Nicotine is an insecticide that effect to insects. This product evaporated pass through natural packaging. A natural packaging can be easily degradation in the environment. Moreover this product also helped to reduce the hazardous chemicals or pesticides usage and not residues for long time.