To recycle glass fiber reinforced plastic (GFRP) discarded as industrial waste, we have proposed a process that produces porous glass fiber-reinforced ceramics by mixing clay and crushed waste glass fiber-reinforced plastic (GFRP) before the mixture is fired. This study was aimed at the development of a turbid filtering material that can decrease the environmental pollution by exploiting the porous ceramic properties. Various specimens with different porosity distributions were made by changing the mixing ratio of clay and crushed GFRP, particle size of GFRP, and firing temperature of the mixtures. The permeability test and filtration test of suspension water containing kaolin powder were carried out on the samples. The results indicated that ceramics containing crushed GFRP at 60% of the total mass have high permeability and filtration ability. The ceramic may be used as a turbid filtering material.
