| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing an alga/coral multiplication member by which the intensive alga/coral multiplication member having high mechanical strength, eluting a small amount of an alkali component, scarcely increasing pH of seawater near the surface, readily compatible with the natural environment, easily establishing spores of the alga and larvae of the coral and having excellent multiplication effects can be produced at a low cost with excellent productivity and wastes can effectively be utilized with excellent resource saving and energy saving properties. <P>SOLUTION: The method for production comprises a mixing step of mixing (a) coal ash with (b) inorganic binding powder such as slaked lime, dolomite or magnesium hydroxide and affording mixed powder, a pressure forming step of pressurizing the mixed powder under a vacuum, carrying out pressure forming of the mixed powder into a prescribed shape and providing a formed product of the coal ash and a carbonating step of housing the formed product of the coal ash in a vessel, bringing the formed product of the coal ash into contact with a gas containing carbon dioxide and introduced into the vessel and carbonating the formed product of the coal ash from the surface thereof toward the interior. <P>COPYRIGHT: (C)2007,JPO&INPIT |
