To obtain a member for the electrochemical control of organisms or for preventing fouling in which deterioration is prevented to the utmost and high in durability by applying any conductive coating of metallic nitride, metallic carbide, metallic boride and metallic silicide to the face to be contacted with water.
This member for the control of organisms or for preventing fouling is the one in which conductive coating 2 composed of any of metallic nitride, metallic carbide, metallic boride and metallic silicide is formed on a substrate 1. In the case a positive potential is applied to the conductive coating 2, the organisms in water is adsorbed to the surface of the conductive coating and are sterilized on the surface. Even if the potential is applied to the conductive coating 2, these metallic compounds are high in corrosion resistance, are free from dissolution and oxidation and are very stable, so that the control of organisms and the prevention of fouling can be executed over a long period, and the fouling of products such as foods, drinking water, pharmaceuticals or the like does not occur. Furthermore, since these metallic compounds are high in electric conductivity and small in the reduction of the potential in accordance with the resistance value of the conductive coating, fouling caused by organisms can be prevented in a wide area. Moreover, since its surface hardness is high, wear and peeling in a distributing pipe are not generated.
OZAWA KINICHI
KODAMA HIDETOSHI
WAKE HITOSHI
MATSUNAGA TADASHI
MATSUNAGA TADASHI