Process for formation of artificial seaweed bed
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United States of America Patent
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Jun 17, 1997
Grant Date -
N/A
app pub date -
Mar 24, 1994
filing date -
Mar 30, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for the formation of an artificial seaweed bed comprises depositing a structure as an artificial fish reef in the sea. According to the present invention, the structure is made of a glassy material having a specific composition, or a surface of the structure is covered with the specific glassy material. The glassy material contains silicon in an amount of 30 to 70 wt. % in terms of SiO.sub.2. The glassy material further contains sodium and/or potassium in an amount of 10 to 50 wt. % in terms of Na.sub.2 O and/or K.sub.2 O. The glassy material furthermore contains iron in an amount of 5 to 50 wt. % in terms of Fe.sub.2 O.sub.3. All or a part of the iron is present in a ferrous state. The glassy material contains the ferrous iron in an amount of not less than 1 wt. %.
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