Experimental study on the utilization of residue from particleboard’s recycling activity

Abstract

Both solid and liquid residues derived from activity of particleboard (PB)’srecycling were investigated. The solid was attempted to make recycle particleboard (rPB) while the liquid was tried to use as fertilizer to seedling of Acacia crassicarpa. Objective of this study was to compare quality between PB and rPB and to evaluate seedling growth of A.crassicarpa exposed to liquid disposal from PB’s recycling activity. Methods of this study were consisted of testing of physical and mechanicalproperties of industrial PB, manufacturing rPB, and comparing the properties between PB and rPB. Prior to manufacture rPB, liquid disposal from PB’s recycling activity was released through water immersion of industrial waste’s PB comprised of predominant trimming residues. The liquid disposal was measured its nitrogen (N) content and then it was kept in a gallon for further use as fertilizer. Observation on growth parameters (height, diameter, leaves number and seedling’s strength) of both treated and untreated seedlings was conducted weekly for 2 months. Results of this study showed: 1)rPB was feasible to be produced but their quality was slightly decreased. 2) Liquid disposal during cyclist test and water immersion of PB’s residues contained 0.69% N. 3) Growth parameters of A.crassicarpa seedling showed response positively and significant statistically between treated and untreated seedlings. These findings suggested that both residues originated from PB’s recycling can be utilized further; the solid can be used as raw material of rPB while the liquid can be utilized as fertilizer to seedlings.