| abstract |
(57) [Summary] [PROBLEMS] To stably and inexpensively recycle a large amount of coal ash discharged from a thermal power plant or the like without generating conventional by-product waste such as sulfuric acid. And as a product utilizing the above coal ash, it has excellent deodorization and water absorption, It is an object of the present invention to provide porous ceramic particles suitable for applications such as a water conditioner, a deodorant, a microorganism fixing material, a filter, a soil conditioner, and a livestock litter. SOLUTION: A mixture containing coal ash, quicklime, cement and by-product gypsum is formed of porous ceramic particles obtained by foaming and hardening. |