| 摘要 |
A first activating material with pores having alkali-ionization promoting function and a process for the preparation thereof, the material comprises animal bone material which is calcined so that the water content is below several wt. percent and is pulverized or powdered into a chipped, granular or powdery state. A second activating material and a process for the preparation thereof, the second activating material comprises the first activating material as well as a magnetic clay powder, both being kneaded, solidified and calcined. A first flocculating agent comprises a solution of the first activating material in sulfuric acid or hydrochloric acid. A second flocculating agent and a process for the preparation of the second flocculating agent which comprises a homogeneous composition comprising the second flocculating agent and a metal solution of a mixture of copper with iron or zinc in sulfuric acid or hydrochloric acid. |
