ANTIBACTERIAL SOLID, PROCESS FOR PRODUCING THE SAME, AND METHOD OF UTILIZING THE SAME

摘要

An antibacterial solid having a satisfactory antibacterial activity for long against sewage in any form of circulating, still and running waters or sewage-contacting parts. An example thereof is one containing both of an antibacterial metal itself and ions thereof. It is generally believed that antibacterial metal ions have a potent antibacterial effect when contained in the sewage at least in a specified concentration but the effect cannot last long because they are rapidly released into the sewage and consumed thereby, while antibacterial metals themselves, though not fast-acting, can exhibit a certain bacteriostatic effect continuously for long. Therefore the antibacterial solid containing both of the metal and ions thereof combines a potent initial antibacterial effect and a persistent bacteriostatic effect.