| 摘要 |
<p>PURPOSE:To provide the immersion filter bed method biological treating device which allows high-load treatment, lessens clogging, is low in construction cost and can operate stably over a long period of time. CONSTITUTION:This device has the constitution constituting in installing a long-fiber bundle 2 formed by bundling many pieces of long-sized single fibers in a vertically zigzag state in a chamber 1 and substantially fixing the upper and lower rotating parts thereof. Supports 3 which support the vertically meandering rotating parts of the long-fiber bundle 2 are built into a part of a frame body which is previously assembled together with a frame material.</p> |
