Methods for treating wastewater sludge
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United States of America Patent
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Jun 18, 2002
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N/A
app pub date -
Nov 17, 2000
filing date -
Dec 9, 1999
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Abstract
This invention relates to methods for treating wastewater sludge cake with acid and calcium carbonate under acidic, low heat conditions to produce a stable, soil-like or granular, finished product containing calcium carbonate, useful as a nitrogen fertilizer, synthetic soil component or soil conditioner for pH control.
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Cited Art Landscape
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