| abstract |
(57) [Problem] To provide a purifying agent capable of decomposing calcium and maintaining water quality in addition to more powerful decomposition of ammonia. Another object is to provide a water purification device capable of adjusting the pH of water, and to provide a water purification device having a simple configuration. SOLUTION: In the water purification device of the present invention, a gentle flow of water is supplied to the upper surface of the filtration filter 11 by the water flow buffer unit 9, and S is dispersed on the upper surface of the filtration filter 11. Ammonia, calcium, organic substances, and the like are adsorbed and decomposed by the photocatalyst or the purifying agent in which the photocatalyst is supported on the solid acid obtained from iO 2 and Al 2 O 3. Maintains the pH of the water in the neutral range. |