PROBLEM TO BE SOLVED: To provide a water treatment method capable of efficiently decomposing, sterilizing and removing organic matter and bacteria, and capable of reducing the cost of water treatment without requiring much energy by using a carrier which is low in production cost and floats on a water surface, using ultraviolet rays of sunlight and allowing water to flow by natural convection.SOLUTION: The water treatment method includes: floating, on water to be treated, photocatalyst-supporting foamed recycled glass in which a photocatalyst is supported on foamed recycled glass having a specific gravity less than that of water and using sunlight to efficiently decompose, sterilize and remove organic matter and bacteria in the water to be treated.COPYRIGHT: (C)2012,JPO&INPIT【課題】製造コストが低く、水面に浮く担持体により、太陽光の紫外線によりで、水が自然に対流し、エネルギーをあまり必要とせず、有機物や細菌を効率よく分解、殺菌、除去し、水処理費用を低く抑えることが可能な水処理方法提供する。【解決手段】比重が水より軽い発泡リサイクルガラスに、光触媒を担持させた光触媒担持発泡リサイクルガラスを、被処理水に浮遊させて、太陽光により、前記被処理水中の有機物や細菌を効率よく分解、殺菌、除去することを特徴とする水処理方法である。
