| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an apparatus for cleaning water, the construction cost or maintenance cost of which can be reduced. <P>SOLUTION: This apparatus for cleaning water is constituted so that water is cleaned by using a water activating agent constituted of a gravelly material obtained from a mixture of porous lapillus, which is oxidized/sterilized to improve the adsorption property and air dissolving efficiency thereof and is made suitable as the culture medium of a microbe, with black earth and/or a powdery material obtained by powdering a clay-like material. The apparatus for cleaning water is provided with: a first stage tank for continuously receiving the water to be treated from the upstream side and storing a predetermined amount of the water to be treated; a second stage tank for continuously receiving the water which is to be treated and is discharged from the first stage tank and storing a predetermined amount of the water to be treated; and a communicative port for making the water to be treated in the first stage tank communicate with the water to be treated in the second stage tank. The water activating agent is brought into contact with the water to be treated in both of the first stage tank and the second stage tank. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
