METHOD AND INSTALLATION FOR THE THERMAL HYDROLYSIS OF SLUDGE
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United States of America Patent
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Issued Date -
May 7, 2015
app pub date -
May 2, 2013
filing date -
May 10, 2012
priority date (Note) -
Abandoned
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Abstract
Provided is a method for performing thermal hydrolysis of sludge in a cyclic manner. A sludge stream is directed into one reactor during a first cycle and in a second cycle sludge is directed into another reactor. Each reactor has a sludge recirculation loop associated therewith. Flash steam from one reactor is transferred to the other reactor to pre-heat the sludge. The sludge in each reactor is recirculated through the circulation loop during each cycle of thermal hydrolysis. Live steam is directed into each reactor to raise the pressure and temperature within the reactor in order to enable the thermal hydrolysis process to take place.
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