Arrangement for removing heavy metal ions from roof runoff waters
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United States of America Patent
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Jun 10, 2003
Grant Date -
Nov 1, 2001
app pub date -
Apr 30, 2001
filing date -
Dec 22, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An ion removal arrangement includes a filter having a filter material made of synthetic or naturally occurring crystalline hydrated aluminum silicates having a framework structure, which contain alkaline or alkaline earth ions. The filter is formed as a double pipe cartridge having an inner pipe and an outer pipe. The filter material is filled in the annular space between the inner pipe and the outer pipe. The filter is installed in the cast iron gutter pipe of a gutter system.
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