Comparative study of wood waste generations on sawmilling industries in Oyo State, Nigeria

Abstract

This study investigated various wood waste generation on sawmilling industries in Oyo State, Nigeria. Three sawmills (Ajah, Alomaja and  Forestry Research Institute of Nigeria (FRIN) Ibadan) were selected for this study. Five different species were selected for wood waste  generation (Gmelina arborea, Milicia excelsa, Lophira alata, Entandrophragma utile and Triplochiton scleroxelem). Twenty 20 logs  diameter were taken from the five wood species and the volume of round log, volume of sawn log, volume of waste generated were  determined and percentage of waste generated were calculated. Result revealed that Gmelina arborea was highest (26.99%) in abundant  in the sawmills due to its utilization for various construction purpose and the lowest (21.432%) wood species was Melicia excelsa.  However, these study reveals that wood waste generated from sawmilling operations in various sawmill are high and should be  encouraged to enhanced in the utilization for energy production and other value-added product for wealth creation and environmental  sustainability.