| 摘要 |
PURPOSE: A sewage disposal apparatus of a fish-farm is provided to prevent quality of water of the fish-farm from polluting by purifying sewage of feed and excrement with a dual layer purifier. CONSTITUTION: A sewage disposal apparatus of a fish-farm comprises a fence(10), a sewage collecting tool(20), a sewage discharging pipe(30) and a dual layer purifier(40). The fence is installed to a river, sea or a reservoir to keep fish. The sewage collecting tool collects sewage like feed or excrement of fish on a lower portion of the fence. The sewage discharging pipe is connected to an end(21) of the sewage collecting tool to discharge sewage outside. The dual layer purifier purifies sewage up to specific reference value by dropping sewage in zigzags to upper surfaces of many flowing plates(40a) arranged unevenly. Therefore, contamination of a river or sea is prevented by purifying sewage of the fish-farm.
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