Dephosphorizing material and method of dephosphorization
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United States of America Patent
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May 21, 1996
Grant Date -
N/A
app pub date -
Jun 10, 1994
filing date -
Oct 28, 1992
priority date (Note) -
Expired
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Abstract
A dephosphorizing material disposed so that a material containing iron as a main component and a calcium compound material contact a phosphorus-containing aqueous solution, and provided with a water-permeable material at least around the material containing iron as a main component. A phosphorus component of sewage and river water can be removed easily by simply bringing this dephosphorizing material into contact with such phosphorus-containing aqueous solutions, without employing any special solution control method. This dephosphorizing material is capable of reducing the outflow of iron rust occurring due to the oxidation of iron during a dephosphorization of a phosphorus-containing aqueous solution, and the iron effluent can be eliminated by the action of the calcium compound material. Accordingly, this dephosphorizing material can be applied practically to sewage and river water.
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