| abstract |
An object of the present invention is to develop a ceramic porous body suitable for water purification and aeration, and particularly suitable for a water purification material for fish ponds. SOLUTION: A porous molded body formed by extruding a base obtained by adding a pore-forming material to a refractory aggregate, drying and firing, wherein the refractory aggregate is mainly composed of silica stone, and foamed. The material is a crushed polystyrene foam, and the crushed polystyrene foam is crushed particles of used expanded polystyrene block waste. Further, carbon is supported on the porous molded body to enhance the adsorption ability, thereby obtaining a ceramic porous body having higher water purification performance. [Selection] Figure 1 |