| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a biological cleaning material as a fixing carrier of useful microorganisms for environmental cleaning being an urgent subject, by using a natural material which is floated and sunk in water, accumulated on the surface of the earth, mixed with soil, easy to handle on a pollution side, used for fixing various microorganisms, not decomposed by microbial action, harmless if discarded, fixed various microorganisms, has good water absorbability and excellent transpiration properties, is chemically stable, excellent in heat resistance and heat insulating properties, easy to obtain, low in cost and present in large quantities, and a method for manufacturing the same. SOLUTION: The biological cleaning material is manufactured by a method wherein perlite or silas balloons and rhyolite type pumice material are molded into a powdery, particulate, lumpy or granular shape to obtain a granular molded article and this granular molded article is immersed in a suspension of microorganisms useful for biological cleaning to adsorb or bond these microorganisms and this molded article is dried in air to manufacture the biological cleaning material which is porous, disposable and harmless.</p> |
