| 摘要 |
<p>PURPOSE:To decompose adequately a TOC component contained in raw water by fluidizing a whole packed bed uniformly by eliminating an upward drift in a biological reaction tank. CONSTITUTION:In a fluidized bed type biological treatment apparatus which has a packed bed 12 formed by carrier particles stuck with an organism membrane and in which the packed bed is converted into a fluidized bed by passing raw water upward, a sprinkling pipe 20 equipped with sprinkling holes 21 arranged downward which sprinkle the raw water uniformly below the dispersion plate 11 of a biological reaction tank is installed, and the raw water is supplied to the sprinkling pipe.</p> |
