Apparatus for biological treatment of water and waste, of the attached-growth type
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United States of America Patent
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Nov 16, 1993
Grant Date -
N/A
app pub date -
Mar 5, 1992
filing date -
Mar 8, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for biological treatment of water and waste of the attached-growth type, constructed by disposing long fiber bundles formed by binding a large number of monofilaments, upward and downward in a zigzag formation in a vessel, fixing substantially the upper and lower angle portions thereof, and particularly incorporating supports for supporting the angle portions of the long fiber bundles disposed upward and downward in a zigzag formation, into a part of a frame assembled in advance together with frame members, the apparatus being capable of high-volume treatment, causing little clogging, lowering construction costs, and capable of stable long-term operation.
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