Water treatment agent for extending water exchange intervals in tank systems
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United States of America Patent
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Dec 27, 2005
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N/A
app pub date -
Aug 16, 2000
filing date -
Sep 18, 1999
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Abstract
A composition for long term improvement of water quality in biological tank systems is described as: 1) at least one highly or poorly soluble Al3+, Fe3+, TiO2+ or ZrO2+ salt of an organic carboxylic acid, optionally mixed with an organic carboxylic acid; 2) at least one water soluble N free biologically degradable organic compound; 3) at least one soluble alkali or alkaline earth metal salt of an organic carboxylic acid; and 4) at least one Mg2+ salt of an organic carboxylic acid, optionally mixed with at least one Ca2+ of an organic carboxylic acid; and also 5) trace elements and vitamins, particularly water soluble vitamins of the B series. Changes in water quality determining parameters can be reduced, minimized or eliminated by using the described agent and thus a significant reduction in partial water change frequency or a clear extension of periods without water changing can be achieved.
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