Method and Deodorizing and Decontaminating Biologically Contaminated Sludge
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United States of America Patent
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Issued Date -
Sep 10, 2009
app pub date -
Oct 11, 2005
filing date -
Oct 11, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to an environmentally friendly method for deodorizing and rendering innocuous biologically contaminated sludge or slurry—primarily municipal wastewater sludge or liquid manure—containing up to 10% of solid matter with aerobic stabilization. The method comprises adding adsorbent carbonaceous mineral material having a particle size of less than or equal to 5 mm to the sludge or slurry and processing the obtained mixture by wet grinding to form a stable suspension in such a way that the solid content of the mixture is ground to particles having a particle size of less than 200 μm and the living organisms are lysed.
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