Method and device for purifying waste water comprising an additional sludge treatment by ozonation
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United States of America Patent
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Nov 11, 2008
Grant Date -
N/A
app pub date -
Apr 14, 2000
filing date -
Jul 24, 1998
priority date (Note) -
Expired
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Abstract
Method for purifying waste water, whereby the waste water is subjected to a biological treatment producing sludge, part of this sludge being recycled towards the biological treatment while being subjected to ozonation combined with mechanical stirring. A mechanical stirring energy is brought in to attack the walls of the microorganisms.
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