Digested sludge treatment apparatus
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United States of America Patent
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Jul 22, 2008
Grant Date -
Jul 27, 2006
app pub date -
Jan 19, 2006
filing date -
Jan 21, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A first aspect of the present invention relates to a digested sludge treatment apparatus for treating digested sludge generated by subjecting organic waste matter to anaerobic digestion, comprising: an apparatus for decarbonating the digested sludge; a removal apparatus for removing coarse contaminant particles from the digested sludge; and an apparatus for separating or concentrating crystals containing magnesium ammonium phosphate from the digested sludge after the digested sludge passes through the decarbonation apparatus and removal apparatus. Another aspect of the present invention relates to a digested sludge treatment apparatus for treating digested sludge generated by subjecting organic waste matter to anaerobic digestion, comprising: a crystallization reactor for precipitating magnesium ammonium phosphate from the digested sludge; a removal apparatus for removing coarse contaminant particles from the digested sludge; and an apparatus for separating or concentrating crystals containing magnesium ammonium phosphate from the digested sludge after the digested sludge passes through the crystallization reactor and coarse contaminant particles removal apparatus.
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