廃棄GFRPをリサイクルした多孔質セラミックスの染色廃水吸着性能

抄録

To utilize waste glass fiber-reinforced plastic (GFRP) and to adsorb dye wastewater in dyeing factories, we aimed to develop a dyes adsorption material that could purify polluted water. This is achieved by exploiting the porous nature of ceramics produced by mixing crushed waste GFRP with clay before firing the resultant mixture. To evaluate the dyes adsorption ability of the ceramics, adsorption tests of methylene blue (MB) aqueous solution on several kinds of ceramics made using GFRP containing 40% glass fiber, Clay and POM resin were carried out. Then, the mechanism of MB absorption on the ceramics was examined based on ceramic specific surface area, pore distribution and carbon content. The ceramics produced by mixing 60%GFRP with clay before reduction firing at 800°C exhibited a high MB absorption ability. It is believed that a part of plastic included in GFRP was changed to carbide during firing, and the carbide had a large specific surface. It is expected that ceramics from waste GFRP and clay could be used for dye adsorption materials.