Abstract

The high cost of activated carbon adsorbents and secondary pollution produced by modified adsorbents encourage experts to search for more environmental friendly adsorbents. In this work, Novel porous ceramisites adsorbents with high porosity and strength were prepared using low cost forsterite powders and porcelain insulators wastes as main raw materials . The paper attempts to discuss the effects of compositions and firing temperature on the physical properties, especially the influences of liquid phases. When the firing temperature is 1050 ℃, the ratio of forsterite powders to porcelain insulators wastes is 36:54, samples show better complex properties with strength of 119 N, apparent porosity of 51%, closed porosity of 2.12%, bulk density of 1.27 g·cm-3, water adsorption ratio of 40.17%, solubility in hydrochloric acid of 7.59%.The porous ceramisite adsorbents are able to remove Cu2+ in the polluted water. The adsorption between adsorbent and adsorbate is well fitted with Freundlich model, indicating that the adsorption of Cu2+ on the surface of adsorbent belongs to multilayer adsorption. The work has a broad application prospect in sewage treatment and comprehensive utilization of resources.The high cost of carbon adsorbents and second pollution of modified adsorbents encourage experts to search for more environmental friendly adsorbents. In this work, Novel porous ceramisites adsorbents were prepared using low cost forsterite powders and porcelain insulators wastes as main raw materials with high porosity and strength. The paper attempts to discuss the effects of compositions and firing temperature on the physical properties, especially the influences of liquid phases. The sample with forsterite powders and porcelain insulators wastes ratio of 36:54 firing at 1050 °C have better complex properties with strength of 119 N, apparent porosity of 51%, closed porosity of 2.12%, bulk density of 1.27 g·cm-3, water adsorption ratio of 40.17%, solubility in hydrochloric acid of 7.59%. The porous ceramisite adsorbents are able to remove Cu2+ in the polluted water. The adsorption between adsorbent and adsorbate is well fitted with Freundlich model, indicating that the adsorption of Cu2+ on the surface of adsorbent belongs to multilayer adsorption. The work has a broad application prospect in sewage treatment and comprehensive utilization of resources.