PREVENTING MICROORGANISM IN WATER FROM ATTACHING TO WALL FACE ALWAYS IN CONTACT WITH SEA OR RIVER WATER

摘要

PURPOSE:To prevent microorganisms in water from attaching to a wall face, by placing an anode in the vicinity of a wall face in contact with sea water, etc., applying direct current to the water, forming a copper ion, etc. and colloidal particles of hydroxides of Zn, etc., adsorbing the copper ion on the colloidal particles of hydroxides, and forming a hydroxide colloidal film on the wall face. CONSTITUTION:A floating material with a fence is equipped in water near a wall face always in contact with sea or river water, for example, in the vicinity of the intake of a cooler system for sea or river water or on the way from the intake to the system, or on the water near a construction structure in the sea, ship, etc. Copper or copper alloy and one or more of Zn, Al, Mg, and Fe are furnished as an anode in the interior of the floating material, and a direct current is applied to the water to form a copper ion, colloid of hydroxides of Zn, Al, Mg, and Fe. The Cu ion is adsorbed on the colloidal particles of the hydroxides and the Cu ion adsorbed particles are attached to wall face simultaneously so that the colloidal film of hydroxides with high copper ion concentration is formed to prevent microorganisms in water from attaching to the wall face. EFFECT:Easy handling, a small power consumption, and safety.